2021 Chevrolet Blazer Problems & Complaints

Went to park car in a park to drop daughter off and it sputtered out and stalled out of nowhere with no warning. I had received a lamp warning very sporadically prior to this and on occasion that stated 'reduced steering assist drive with care' this resulted in heavy steering for that drive until car was shut off and then it would go away and be fine again, fixed the car through Knudtsen Chevy due to a recall about a month before on the issue with the engine being turned off and it thinking it was still hot and still running the fan (even though the car was not running). Knudtsen fixed that issue. Low battery voltage light did not come on however battery was older so had battery installed at park to ensure the issue was not due to the battery. The oil was fresh and showed no issues, changed 2 weeks before fresh oil no issues found during service. When tried to restart the car it would think it would try to start and then sputter out and not stay in idle. Les Schwab left and called a mobile mechanic to bring the computer. Computer was hooked up and it would try to start, however, it would not know it was already running and try to start again on it's own...the codes that came up were the PO101 code came up for Mass Air Flow issue...and then the codes would go in a wild sequence of fail.....mechanic checked for loose connections around air filter, took air filter out and it was clean no issues, checked pipe no visible issues. We walked away and walked around the park to give it some time to sit and then we tried it again and it tried and sputtered out and died again would not stay idling. Then all of a sudden we heard it try to start itself without us trying to start it and it clanked. We hauled it to Knudtsen for a diagnosis. They stated "the motor will not turn this way or that way and it is seized or locked up". This is a 2021 with only 89,000 miles it should have a longer life than this. Please investigate and is there anything we can do to fix it?

Both camshaft carriers failed due to a manufacturing defect. According to NHTSA bulletins 21-NA-240 and PIP5755, the oil leak from the cam carrier is caused by improper sealant application during manufacturing. Although the dealer addressed the issue, it was clearly not a problem that arose from normal use. The leak had the potential to worsen and lead to a fire hazard. Chevy of Montebello confirmed the issue and repaired the vehicle for over $7,500. There were no warning signs, as the leak was difficult to detect on the driveway. The low-oil warning light came on the day before we took the vehicle to the dealer.

The transmission (powertrain) developed a delay when shifting into reverse, followed by harsh engagement. The condition worsened over time and resulted in a complete loss of reverse. The vehicle will not move when shifted into reverse. This creates a safety risk when parking, backing out of spaces, or maneuvering in traffic, as the driver cannot safely control vehicle movement. The issue occurred at approximately 89,000 miles under normal driving conditions. No warning lights were present prior to failure. The problem was reported to a dealership and diagnosed as a transmission failure. The condition is reproducible and ongoing. I was also informed that multiple vehicles of the same model were experiencing similar transmission issues at the same time. The failure limits safe operation of the vehicle and increases risk in situations where reverse movement is required.

The contact owns a 2021 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle with several unknown warning lights illuminated. The contact stated that the electronic parking brake independently activated. Additionally, the failure had occurred while the vehicle was parked. The failure was persistent. The vehicle was not diagnosed or repaired by an independent mechanic or a dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 31,000.

The vehicle had an oil leak from both the left and right camshaft carriers. The dealer confirmed the issue and carried out the necessary repairs. Because the leak was not easily detectable, it could have led to engine failure while driving. There were no warning indicators; only small oil droplets were found on the ground.

Once I turn the vehicle off, there is a loud sound coming from the engine area that sounds like a fan. Then the first incident of the fan ongoing after the vehicle was powered off, a battery light was on the internal driver dashboard and stayed on. The battery was recently replaced during 2026 so the battery should not be anywhere near dead, dying, or needing to be checked

The contact owns a 2021 Chevrolet Blazer. The contact stated that while attempting to start the vehicle, several unknown warning lights illuminated, and other lights inside the vehicle flashed on and off. The contact stated that the failure also occurred while driving at various speeds. A dealer was contacted. The vehicle was taken to several dealers for diagnostic tests; however, the diagnostic result was unknown. The manufacturer was notified of the failure and informed the contact that there would be a callback about the cause of the failure; however, there has been no callback yet. The approximate failure mileage was 50,000.

My 2021 Chevy blazer Lt v6, has a service bulletin extending warranty on thermostat malfunction, that also causes the fans to run after the car is off. My vechicle was experiencing this issue, went into my local dealer, they claim thats not my issue, I need a new radiator, that has never leaked, or the car running hot. Beyond that the radiator has a service bulletin, they can fail, do to poor quality from supplier, some were replaced under warranty, some were not. This vechicle has 47000 miles, I should not be responsible for this issue. Thank you [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Coolant smell when parked with engine running. Radiator was replaced under warranty at 16,000 miles Coolant smell again 49,000 miles. "Pressure tested at dealership with following notes: "Found radiator core on driver side seeping/leaking. provided estimate on cost. no repair made during this visit." Many forums on 2021 Chevrolet Blazer note poor quality in radiators. This would be the 3rd radiator in less than 50,000 miles on the vehicle.

At 48,000 miles, check engine light came on and loud fan sound continued after turning car off. Took car to dealership where I was informed I needed a new radiator and it is not covered by warranty.

This submission is an additional report related to NHTSA complaint #11714381. At approximately 55,000 miles, my 2021 Chevrolet Blazer experienced a sudden throttle body failure while driving. The vehicle entered reduced engine power/limp mode without warning and acceleration was significantly limited. This created a safety concern while driving in traffic, particularly when merging and crossing intersections. Diagnostic code P2101 (Throttle Actuator Position Performance) was present. A Chevrolet dealer confirmed an internal throttle body failure and replaced the throttle body assembly. Although the repair was completed, this failure occurred at relatively low mileage for a critical engine control component. A sudden loss of acceleration can pose a safety risk depending on traffic conditions. Since filing my original complaint, I have identified multiple similar reports online and in owner forums describing premature throttle body failures in GM vehicles with similar symptoms (reduced power/limp mode and limited acceleration). This suggests the possibility of a broader pattern involving this component. I am submitting this additional report so that NHTSA has a complete record of the incident and potential pattern of premature throttle body failures. If this issue is widespread, it may warrant further review or investigation as it affects vehicle acceleration and safe operation.

The 2021 GMC Blazer (and related Chevy Blazer models) is experiencing recurring radiator failures, often requiring multiple replacements within short timeframes. The radiator was replaced in March 2024 and in early 2025 I went for an oil change and complained of smelling coolant and asked if it could be checked and was told nothing was wrong. I was told again in November 2025 that it has a leak and went to have an oil change in February 7, 2026 and was reminded that the coolant was low and the radiator needs replacing when I was first told I did not believe it to be true as it has been replaced before and I asked that it be checked and was told nothing was wrong.

Around 55,000 miles, my 2021 Chevrolet Blazer experienced a throttle body failure. The check engine light illuminated and the vehicle entered a reduced power/limp mode condition. Throttle response was significantly limited, and the vehicle could not accelerate normally. While the vehicle remained drivable, it took substantially longer to reach speed, which could pose a safety risk when merging into traffic or crossing intersections. Diagnostic trouble code P2101 (Throttle Actuator Position Performance) was present. A Chevrolet dealer confirmed an internal throttle body failure and replaced the throttle body assembly. This component is a critical engine control system, and failure could affect acceleration and vehicle control, posing a potential safety risk. The failure occurred well before expected service life and required a costly repair. The component has been replaced and is available for inspection upon request. I believe this may represent a premature defect and should be investigated for similar failures in other vehicles.?

Thermostat issues, gives warning steering assist decreased and then eventually check engine light, vehicle thermostat does not react/reach normal temperature, fan continues to blow after car is turned off for 5-15min, AC does not blow cool air or warm if heat turned up

Radiator failure caused power steering assist to not function properly and insufficient vehicle heat function. Engine electric fan would run continuously after vehicle shutdown.

For about a week and a half my car had made a high pitched wheezing/hubbing sound when started cold. This occurred at all temperatures cold and warm. Yesterday December 13th I went to run some errands and about a mile into my drive my 2021 3lt 3.6 V6 Chevrolet Blazer lost the ability to power itself. There was no electrical problem however the power train lost power all gears drive and reverse. I was able to get off the roadway without incident. I scan my check engine light and had several check engine lights including a P 0796.

"Steering assist reduced" message was displayed. At the same time the temperature gauge stopped working and after I shut the car off, the motor fan ran full force for 10+ minutes. Shows no check engine light.

My 2021 Chevrolet Blazer experienced a radiator failure at approximately 42,000 miles. The radiator and cooling system malfunctioned, causing coolant loss and triggering a warning light on the instrument panel. The failed radiator is available for inspection upon request. This defect put my safety and the safety of others at risk because a compromised radiator can lead to engine overheating, sudden loss of power, or even steering assist reduction while driving. These conditions increase the likelihood of an accident, particularly at highway speeds. The problem was confirmed by my Chevrolet dealer, who diagnosed the radiator as needing replacement. They initially quoted $1,800, later reducing the cost to $915.90 after acknowledging that approximately 20 customers per month at their dealership alone are experiencing the same issue. This indicates the defect is widespread, at least regionally, and may be systemic across the model. The vehicle has been inspected by the dealer service department, which is an authorized GM representative. No police or insurance inspection has occurred. Prior to the failure, a warning lamp illuminated on the instrument panel, alerting me to a cooling system issue. This was the first symptom I noticed before bringing the vehicle in for service. I believe this premature radiator failure represents a systemic defect in the 2021 Chevrolet Blazer’s cooling system. It occurred well within the 5‑year/60,000‑mile warranty period, yet the dealer claimed the radiator is not covered. I am requesting NHTSA investigate this issue, as it appears to affect many owners and poses a significant safety risk.

Driving along vehicle shut down in middle of road replace fuel pump, fuel module control in August 2025. Now both top and bottom fuel hose needs replacing. On Nov 2025 I smelled gas and vehicle shut down

In September 2023, when getting my vehicle serviced for a routine oil change, I was told there was a leak in my radiator. They replaced the entire thing under warranty. On November 15th, 2025, while driving on the highway heading home from out of town with my children, an error flashed up saying “steering assist is reduced – drive with care” Upon arriving home, the fan on my car was running on high for a solid 10 minutes after turning the car off. No recall but Special Coverage N252508350 covers the thermostat replacement. Upon inspection by a mechanic, I was informed that the radiator is also leaking again in the exact same spot as it was previously. It should be noted I have never seen leaking fluid in my garage/driveway. I’ve driven less than 10,000 miles since the radiator was replaced previously. If there is a known problem with the coolant system which can cause overheating and steering assist issues, why isn't the faulty radiator and thermostat recalled. The radiator is cased in plastic to aluminum. Plastic can easily catch fire if a car overheats. The casing also prevents an owner from even knowing if there is a leak since the plastic is catching leaks - the mechanic informed me that's why I didn't know about both times it leaked. This is a 4yr old car with 46k miles, twice replaced radiator and thermostat. A recall should be issued since both problems could potentially cause a fire from an overheated engine & loss of steering assist while driving. A google search quickly showed me thousands of other Chevy Blazers from 2019-2021 with reoccurring thermostat and radiator issues. I feel unsafe driving in my vehicle but still owe too much to even trade it in for something else. I've owned dozens of vehicles in my lifetime, used and new and keep them 8-10yrs and have never had to replace a thermostat and radiator. This vehicle is dangerous due to GM/Chevy's cheap radiator model and thermostat which could overheat and catch fire

The contact owned a 2021 Chevrolet Blazer. The contact stated that while driving at 30 MPH, a 2012 Mazda CX-7, allegedly going at 70 MPH traveled through an intersection and crashed into her vehicle. The Mazda later crashed into another unknown vehicle. All the air bags deployed; however, the driver's side air bag exploded in her face. The air bag dust was in the vehicle. The contact was rendered unconscious due to the incident. All the warning lights illuminated after the crash. OnStar was activated and disabled the vehicle. There were unknown fluids leaking from the vehicle. There was no reported fire. A police report was filed. The contact sustained a severe brain injury, and medical attention was provided at the hospital. The vehicle was towed to her residence. The insurance company later towed the vehicle on a flatbed to a tow lot. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The vehicle was deemed a total loss by the insurance agency. The failure mileage was approximately 36,463.

Car was running fine yesterday, today does not want to start. Thought it was the battery, bought anew battery. Still wouldn't start. Rest of cat is getting great power. Code reader is reading its a fuel pump control moduler which just so happens to be in an open recall for my exact year of vehicle yet my vin number does not pop up on the GMC website under active recall. I have a 2021 chevy blazer .

Action Required "Steering Assist Warning" drive with caution, Temp gage reads cold, A/C stops working, engine cooling fan runs on high speed (even after the engine is shut off), pending P2018 code, with no Check Engine Light (CEL). Replaced Engine coolant Temperature (ECT) sensor, problem did not go away. Several reviews suggest to replace the thermostat, check fuses for proper insertion, reroute ECT wiring, and possibly replace radiator. Most of these repairs can be very expensive. Chevy Blazer Forum states that the issue is a out of range detection of ECT sensor reading. GM needs to determine a true solution and stop guessing at owner expense/frustration.

See attached document for complaint.

I was driving at approx 45 mph when my car lost all ability to accelerate and shut down in the street. Flashing check engine light and esc warning on the screen. It would try to start but wouldn't. I had it towed to a mechanic who diagnosed and informed me that it is the Fuel pump power control module. Upon review he I formed me that there was a recall posted in September 2025 for 2021 Blazer on this exact issue. My car has now been unusable for a week as my mechanic recommends it be repaired via recall at dealership.

I PURCHASED MY 21 CHEVY BLAZER IN 2024 AND HAD A FEW PROBLEMS WITH A TRANSMISSION PROBLEM. THE VEHICLE WOULD STOP AND JERK WHENEVER I DROVE IT. I TOOK IT TO THE DEALER A FEW TIMES FOR REPAIR. THEY CLAIMED TO HAVE FIXED THE PROBLEM, BUT IT STARTED AGAIN SEVERAL MONTHS LATER. THE VEHICLE HAS APPROX 82,000 MILES ON IT. I HEARD THAT THERE WERE SOME RECALLS ON THESE VEHICLES, BUT NOT SURE IF MINE IS ONE OF THEM. I FEEL THERE ARE OTHER VEHICLE LIKE MINE THAT HAVE THE SAME PROBLEM.

Car wouldn’t crank

In March after a short drive, 24 miles, the car temp was pegged at Cold. After turning off the car, the fan continued to run several minutes. After a quick internet search several posts commented on a similar issue with their vehicle. Two potential issues were identified - thermostat failure or programming issue. With less than 40,000 miles on the car, I purchased a diagnostic tool. Running the tool program two errors were identified. After resetting the sensors, the problem went away. In September, yesterday and today the problem occurred again - and the error reset fixes the issue. I believe Chevy needs to fix the issue with a recall to either update programming or replace the thermostat. [Several posts state the thermostat replacement didn't fix the issue and is very expensive.]

Odometer Fraud. The contact purchased a 2021 Chevrolet Blazer. It was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 9,967, and at the time of registration, it was discovered that the mileage was approximately 38,000.

Request for Recall Review – 2021 Chevrolet Blazer Steering Assist and Cooling Fan Issue Hello, I am writing to report a recurring issue with my 2021 Chevrolet Blazer and to request that this concern be reviewed for possible recall or warranty coverage. The vehicle frequently displays an “Action Required: Steering Assist is Reduced. Drive with Care” message while driving. Additionally, after shutting off the vehicle, the engine cooling fan continues to run for up to 20 minutes, as if the vehicle is overheating. This issue has occurred multiple times and raises concerns about potential problems with the steering assist system, cooling system, or electrical sensors. I’ve noticed that other Blazer owners have reported similar experiences online, which suggests this could be a broader issue. Could you please confirm whether there are any existing recalls, technical service bulletins (TSBs), or warranty programs addressing this condition? I would also appreciate guidance on the next steps for inspection or documentation. Vehicle Information: Year/Model: 2021 Chevrolet Blazer

The contact owns a 2021 Chevrolet Blazer. The contact stated that while her husband was driving 60 MPH, the "Service Engine Soon" message was displayed. The contact's husband pulled over to the side of the road. The contact's husband used his personal FIXD machine to diagnose the vehicle. The contact’s husband retrieved DTC: P023F (Powertrain Control Module Detected a problem in the Electrical Pathway supplying power to the Fuel Pump). The vehicle was towed to an independent mechanic who diagnosed the vehicle and determined that the fuel pump had failed. The vehicle was then towed to the dealer. The vehicle has not been diagnosed. The contact related the failure to Manufacturer's Recall Number: N252516900. However, the VIN was not included. The manufacturer was not made aware of the failure. The failure mileage was 90,493.

Radiator leak, leaking antifreeze

Steering assist reduced warning came on with engine light. When car turned off , radiator fan continued running for a few minutes before turning off. AC would also not work during this time. Issue has been intermittent. Was told the thermostat was getting stuck open and needs replaced.

Brake booster failed after 50k miles needing repair. Brake became very still, prolonging the time it takes to stop the vehicle

Was informed at today's oil change that my radiator is leaking and it's something that they are seeing a bunch.

my vehicle is roughly 40k miles. The temp gauge was stuck on C the cooling fan was running continuously even when the car was off and the checked engine appeared. The mechanic at the dealership said the thermostat is stuck in open position causing the computer not to know if the engine is cooling properly. For a vehicle less then 5 years old with upkept maintenance and doing a bit of research... This is a common occurrence in Chevy vehicles. Therefore, the manufacturer needs to look into recalling this issue costing people thousands of dollars. This was my first Chevy and probably my last.

Auto braking system went off when I was at stop light & began to move forward (was 2nd in line of cars) and I accelerated. On the roadway, there are construction 'steel plates' laying on the ground in the area that all cars must drive over (I have driven over them in my same Blazer before) because we have no choice. One I pressed on gas & began moving over those plates, the Blazer stopped itself VERY abruptly & jerked my head forward & dash said I had to press on brake let off or something in order to move again - it was all very fast & I had a line of traffic behind me at 5:15 pm on a Friday (9/5/25). I'm very luck I did not get hit from behind & car behind me paid attention! That is the 3rd time my car has stopped suddenly; 2 times before it was when going up my very steep driveway so I had no one behind me & I wasn't as shook up - Chevy needs to REALLY look at this! It is a hazzard!!

I was driving down 776 (a busy highway)Blazer completely shut off, so scary almost got hit by a semi, I don’t know how he managed to get around me , I jumped out of car! Sure thought it was my day to die! Called police for help! Had it towed home then to garage , was told it was the electrical fuel modular! Haven’t slept right in 3 days ! I’m still so shaken up!

The temperature gauge or thermostat has been replaced 3 times and continues to fail

At routine oil change dealer noticed radiator was leaking. 60,840 miles Took it to an independent repair shop who confirmed radiator needed to be replaced. Has also seen same on other 2021 Blazers. No visible signs of leaking (fluid on garage floor) or warning indicators. No recall issued on this, however, seems to be a common problem on 2021 Blazer based on Chevy forums. Due to safety issues, vehicle is currently in shop for the needed replacement repair.

My name is [XXX] and I was a passenger in our 2021 Chevy Blazer with our young child in the back seat when the brakes suddenly failed while we were driving on the freeway. The brake pedal went stiff and wouldn’t respond. It was terrifying — we truly felt like we were going to crash. I was panicked, and my child was crying. Since then, I’ve been too afraid to drive or ride in this vehicle, even if it gets repaired. This isn’t the first issue with the car, and GM has not resolved it in a timely or helpful way. The vehicle is currently at the dealership and we are paying for a rental car out of pocket. I’m reporting this because I believe this vehicle poses a serious safety risk to families like mine. I’m asking NHTSA to please investigate this issue before someone gets hurt. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While driving my 2021 Chevrolet Blazer LT on the freeway with my wife and child, the “Brake Assist” warning came on and the brake pedal suddenly became extremely stiff. I was going about 65 mph, and it became difficult to slow down safely. We were terrified. This created a serious safety hazard, as I almost couldn’t stop in time and could have caused a crash or gotten someone killed. The check engine light came on as well. I had previously taken the vehicle in for a similar rattling or braking noise back in 2021 and was told it was “fine.” Now the issue seems to have gotten worse. I have since learned that other owners have reported similar brake assist issues on 2021 Chevrolet Blazers, and it appears there are service bulletins but no recall yet. I am extremely concerned that GM has not addressed this defect, especially since it happened without warning and endangered my family’s lives. I am requesting a full investigation into this issue and for GM to take full responsibility for the repair.

The contact owns a 2021 Chevrolet Blazer. The contact stated that while the vehicle was parked, while attempting to start the vehicle, the vehicle failed to start. The vehicle was towed to a dealer where it was diagnosed and determined that the fuel pump module needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 81,123.

Brakes bottomed out. Message on my dash board said “Brake System Failure reduce speed to 62” and the brake went on the way to the floor.

The first incident started on 08/16/2024, 2 days after buying the vehicle used from Dealership. I started getting notifications stating "Service-Front Camera not available" and sure enough, I no longer had a front camera, which then means I no longer have front collision alerts. Then I started getting the random notifications to drive carefully because drivers assistance has been reduced, and now my vehicle's fan will randomly run for up to 30 minutes after it has been shut off and even after a less than 2 mile drive to gas station and back home, it does this. Last item is the vehicle pulls to the right, and I have not hit anything nor has it ever been in an accident prior to my purchase, and my brakes squeal horribly, which shouldn't be happening condidering I haven't even driven the vehicle 5,000 miles in the year since I bought it !

The vehicle has 14,000 miles on it and the fuel pump control module has gone out on it. This happened while away from home and could’ve caused a serious situation if this had happened in a remote area where customer could’ve been stranded or if customer were pulling onto a busy road. Luckily it happened in the parking lot of a store. The vehicle was running fine on the way to the store. When customer came back out to the vehicle it cranked up but then stalled which also left customer in between parking rows, potentially causing an accident. I have the old fuel pump control module readily available for inspection. Customer had an updated version that replaced the original one that was in it. There were no signs or indications that this was going to happen until it did. I know there was a big issue / recall with the modules on Silverado and Tahoe’s etc. around the same manufacturing era. For reference- 1/2 tank of fuel, no CEL until after it happened, approx. 88° outside, coolant temp near 120°, vehicle battery had good voltage and battery cells are good

Fuel pump module. Driving highway speeds lost all engine power as car sputtered to a stop. Luckily car srill ran enough to maintain power steering and brake function. No warning lights.Thought it was bad fuel as I had filled the tank the prior evening with little driving after that. Towed to dealership after spending 2 hours in 100 degree plus weather on the side of the highway. Dealership states it is the fuel pump module. Dealership is waiting on new unit to be installed.

My 2021 Chevrolet Blazer experienced brake failure while driving, without any warning lights or diagnostic alerts from the vehicle’s onboard system prior to. This created a very dangerous situation for myself and others on the road, including my family who was in the car as well. Prior to this incident, I brought the vehicle to the dealership not long after purchasing it because I was constantly hearing screeching noises when braking. I thought it was rather soon to need new brakes, considering I purchased the vehicle brand new, but the issue was dismissed without any further inspection. This most definitely resulted in a missed opportunity to diagnose what is seemingly a more well known mechanical failure common among GM manufactured parts. After the brake failure, service technicians discovered that the vacuum pump had failed, causing the brakes to fail which led to engine damage by projecting shrapnel into the engine. This has rendered a $35,000 car purchase useless after 4 years of use without a $10,000 repair. I find this highly unethical. Upon further investigation, I learned that GM has previously acknowledged vacuum pump failures in several vehicles manufactured between 2014–2018 and even recalled certain models. The 2021 Chevy Blazer should be included in the list because failures of this part can lead to harm, injury, or loss of life. The documented defects in older GM models is consistent with my experience. I got oil changes and service regularly. The dealership should not have been so quick to dismiss the the brakes, knowing the history of these parts and the warning signs. This issue should be taken seriously as it is likely more widespread and is a ticking time bomb. Loss of life should not be the catalyst to trigger action in this situation. Other consumers are likely at risk without knowing it.

2021 Blazer Message steering assist reduced ESC needs attention 15,000 miles shoukd no way need rack n pinion . Steering reduced and is a hazard to drive

I am reporting a serious safety concern involving my 2021 Chevrolet Blazer, which experienced brake failure while driving, without any warning lights or diagnostic alerts from the vehicle’s onboard system. This created a highly dangerous situation for myself and others on the road. Prior to this incident, I brought the vehicle to the dealership after consistently hearing squealing or screeching noises when braking. The issue was dismissed and attributed to a change in federal regulations limiting the use of copper in brake pads—without any further inspection. This resulted in a missed opportunity to diagnose what appears to be a deeper mechanical failure. After the brake failure, service technicians discovered that the vacuum pump had failed, which impacted braking performance and also caused engine damage. While I’ve since learned that GM has acknowledged vacuum pump failures in several vehicles manufactured between 2014–2018 (via formal recalls), the 2021 Chevy Blazer is not currently included in those campaigns However, the symptoms and outcome I experienced are strikingly similar to the documented defects in older GM models. The lack of early diagnostic detection, coupled with dealership dismissal of clear warning signs, signals a potential emerging safety defect in this newer model that may not yet be officially recognized. Given the safety-critical nature of the braking system and the failure of both mechanical and procedural safeguards, I strongly urge NHTSA to investigate whether this issue is more widespread in recent GM models, including the 2021 Blazer. Other consumers may be at risk without knowing it.

On the way to work my car said “driver assist is stopping drive with care” about 2-3 times. Upon getting out of my car it sounded like my car was still running. I turned it off and on a few times and it still sounded that way. I had to go inside or I would be late so about 20 minutes later I was able to come back and check on it and the noise stopped. It was coming from the hood. Upon googling I figured it was something to do with a faulty temperature gauge which correlated with the signal from the car as well as the sounds. It seemed like this is a very common occurrence for these cars. I called the dealership and they said they fix these everyday and the man knew exactly what was wrong before I could even finish describing it. Unfortunately I don’t know the cost of this and have already had several other things to repair in my home recently so this will be detrimental to my finances if this isn’t covered. On the way home it did it again along with no AC in the 90 degree heat and then the engine light came on. We had to open the hood and leave the garage door open to prevent any possible harm that may do in the garage. This could be very dangerous for me as I drive my car everyday to work and can’t afford to rent a car for several weeks while this one isn’t working. And I’ve only had it for 6 months. Now my husband and I have ti figure out how we are each getting to work with one car until we get this fixed or we borrow a family members car.

The temperature sensor fails randomly. I can reset it by unplugging the battery but it will just drop off again in a week or two.

Temp stuck on cold, ac doesn’t work and driving assistance off. Fan runs after shutting engine off.

Midway home I got a message on my dashboard “steering assist reduced - drive with care”, but my power steering was still functional. I parked my car in the driveway, shut it off, and the cooling fans started blowing excessively. This continued for 5-ish minutes before shutting off on its own. Then I noticed that the engine temp gauge wasn’t working. Unsure if this is a problem with the thermometer or the sensor currently.

The thermostat and the sensor for the thermostat continues to go bad

The temp gage stays on cool. Ac does not work and the radiator fan stays on after car shuts off. Dealership finds nothing wrong.

"Driver Assisted Reduced Use Drive With Care Message" comes on when it is over 70 degrees outside. The temperature gage reads zero, A/C does not work, when the car is turned off the fan runs on high for an extended period of time. Showing code P0128 Used car purchase, came on 3 days after receiving vehicle from the dealership. Reset the code came on again 2.5 weeks later (5/3/2025) when the outside temperature was in the 70's

The steering assist stopped working. The defrost stopped working because the ac stopped working. The temp gauge stopped working. Error code P0128. I have since found out all this is caused by a faulty temp sensor.

Took 2021 Chevy Blazer to a Chevy dealer for small leak. 25000 miles and dealer said I have a leak in the radiator and needs to be replaced. If I didn't notice the small leak the engine could overheat, and possibly start a fire.

The vehicle’s brakes failed while I was driving. I was luckily able to steer the vehicle off the road narrowly avoiding hitting another car. We had the vehicle towed to a Chevy dealer and they told us the fault was due to a low voltage battery. They would also not drive the vehicle until the battery was replaced because it was giving an error message of “brake system failure”. The dealer is the only place that has inspected the vehicle at this time. The warning messages appeared at the time of failure and not before. I find this to be a manufacturing defect in need of a recall as this could have easily caused harm or loss of life.

To whom it may concern, I own a 2021 chevrolet blazer I have been noticing a very large amount of water on the front floor boards since this discovery the windows being moist in the mornings make sence l. The windshield has been replaced several times with no obvious leaks at this location. There is no visible leaks during heavy rain or car washing, the biggest concern i have it if there's moisture I am more likely to develop electrical problems not to mention the moldy smell in the vehicle. I have done extensive research and found this to be a problem with most Chevrolet Blazer's my question is does Chevrolet have a solution to the problem that has found its way to many customers. I would believe with the number of complaints the Chevrolet engineers are working on a solution or a reason for this problem. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2021 Chevrolet Blazer. The contact stated while driving 35 MPH, the ambient air temperature was stuck on negative forty. The contact replaced the sensor. The vehicle went into ICE/SNOW Mode on several occasions and was not driving as designed. The air conditioner was blowing out hot air. Additionally, the vehicle was pulling to the right while driving. There were no warning lights illuminated. The vehicle was taken to an independent mechanic who scanned the vehicle and determined that the sensor was operating as designed. The mechanic informed the contact that there was a loss of communication. The vehicle was taken to the local dealer, where it was diagnosed that the control arm needed to be replaced. The vehicle was repaired, but the failure recurred. The dealer informed the contact that there was no recall coverage on the vehicle. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The failure mileage was approximately 34,980.

Steering Assist is Reduced came on dashboard. Check engine late came on shortly after. AC wasn't working and the temperature gauge on the dash wouldn't move. I took it into a shop where they said it was a temperature gauge that was causing all the issues and would need to be replaced. P

Driver steering assist reduce message in display. Upon scanning codes, error code P0128 triggered. Temperature gauge does not register on dial between C-H.

I got home from work, locked my car up for the night with everything working perfectly fine, then came out to leave for work the next morning to find “update failed. Return to dealer” on the infotainment screen. I did some pretty extensive research trying to find the fix, only to find that many people are having this exact same issue in the same circumstances where their vehicle was fine when it was parked, they go to get back in and nothing with the infotainment works. According to my online research, GM/Chevy is charging anywhere from $1500-2000 to fix. I contacted few different dealers to see if I would get the same price and I absolutely did. They said, “your car is no longer covered under any warranties so you will be fully responsible for the cost of the fix.” I have no sound, no GPS on my screen so now I have to use my phone for work navigation (talk about a safety hazard), my turn signal sounds don’t work, my talk to text doesn’t work, no more hands free calls. This is a huge safety issue and makes me wonder why there isn’t a recall yet. This is not normal wear and tear. This is a glitch in the GM programming that they should take responsibility for and fix before they lose a lot of business.

I just got off work, and when I start my vehicle, my infotainment screen that I use for GPS and other features that are included in the safety of the car, and the screen just says, “Update Failed, Return to Dealer.”. The service advisor at Chevy says that this happens and that there is nothing they can do besides replace the entire radio, at a cost of $2000 with Labor. I also researched the issue online and there are dedicated websites to this very issue with multiple year and models in the Chevy lineup that uses the Chevy MyLink infotainment center. Which is in every vehicle they sell. So currently I’m unable to access any radio, GPS, safety cameras around the vehicle, or any of my OnStat Emergency Services that come with the vehicle due to an update that I never asked for, or even attempted to install. And for Chevy to not replace the radio but instead recognize it’s a problem but still charging you to fix something that they know is defective.

The Transmission valve control body went out while I was on the freeway.I was able to pull off to the side safely but has rendered my vehicle inoperable until I get this repaired. I have confirmed this with the dealership. This is a large enough issue with vehicles that the necessary parts are on back order. Anecdotally, the dealership told me there was a vehicle that was waiting for almost 3 months for a replacement part. For context I have regularly maintained this vehicle and just 10000 miles ago got my transmission flushed.

The contact owns a 2021 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed, there was an abnormal roaring sound coming from the engine compartment. There was no warning light illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the transmission. The contact was informed there were metal fragments inside the transmission fluid. The vehicle was not repaired. The contact was informed that the transmission needed to be replaced. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 84,000.

I parked on an incline using the parking brake and the vehicle could not disengage the brake

The contact owns a 2021 Chevrolet Blazer. The contact stated that upon turning off the vehicle, the fan remained engaged for approximately 10 minutes. Additionally, the contact stated that the A/C system was intermittently inoperable. The contact stated while driving at an undisclosed speed, the vehicle made an abnormal sound, and the contact noticed that there was a coolant leak onto the floor of the vehicle. An unknown warning light was illuminated. The vehicle was taken to East Houston Auto Electric, where it was diagnosed that the thermostat was stuck and needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 95,000.

Vehicle is available upon request. 5/28/23 tires needed replaced, not even 30,000 miles on car. Customer was charged. 6/13/23 struts and mounts replaced at dealership 3/29/24-Revs high when barely touching pedal. Turned car off and it started back up on its own. Happens at least once a week. Dealership was unable to recreate. 4/1/24- wheel bearing replaced, customer was charged. April 2024 black metal showing through white paint. Paint was thin and fading. Dealership repainted the 2 doors that had paint issues. 12/20/24- Antifreeze level was at bottom of reservoir. Sloshing noise when driving. Was told air in hoses and will work it's way out. Was back at dealership 1/15/25, 1/24/25 & 2/5/25. Radiator fluid still dropping but even with dye test they can't figure out where it's going. Terrified it's going to effect the water pump and engine.

This is re: dash warning that came on saying "Action Required, Steering Assist is Reduced, Drive with Care" on 2021 Chevy Blazer, 28.800 miles. First happened 1/15/25 & each time car is started it is on now, plus the Check Engine light is on now. The fan of the motor runs for 5-10 minutes once car is shut off also. I have read of the power steering locking totally up on other Blazers that this has happened on, making this a very big danger and risky. I am not sure if it is power steering, electrical, or engine issue, but believe with so many reports out there and it causing a danger to people driving, GM/Chevrolet should put a recall on this and look at these before people are killed (if not already due to this). I am taking mine to Chevy dealer to have it looked at, but many people may not have that option.

While driving previous year 2024 the steering wheel became stiff and hard to turn. I was going around 60MPH and the Reduce Steering Drive with caution appear. Took it to the nearest Autzone no codes. We removed battery for 30 min and the steering wheel worked. Again changed my battery and the steering wheel will not turn. Had to disconnect for a day and the steering wheel worked. Fast forward 2025 Jan 14th driving down highway 360 going 60MPH my steering wheel message reappear. Called a dealer service they say they don't know. We had to tow it back to the house after work my OBD reader did not have any codes. Is a dangerous issue that needs to be recalled. I could of cause and accident.

I have a 2021 Chevy Blazer that has 31,0000 miles and my steering locked up. I was driving and barley got into a parking lot. Told by a certified dealer it is the power steering gear and possible the power steering module. No parts available and no ETA. This does not make sense that the steering with such low miles has gone out. I have read on the GM forum that multiple people have had this issue. I could have been killed. Why has there not been a recall on this very expensive repair?

On [XXX], I was driving my Blazer up to our local Museum to grab some information. The Museum is about a mile and a half from my house. When I had left my house, the car was driving like normal. I pulled into a parking spot at the Museum, and I went to shut the vehicle off, and I thought maybe the check engine light had come on but wasn't completely paying attention to the dash. About 10 minutes later I went to restart the vehicle to leave and I noticed the check engine light on. Since the vehicle seemed to be driving okay I thought I could make it home and check the car's computer to see what the issue was. As I was leaving the parking lot I stopped at the end of the parking lot to look before pulling out onto the road and the Blazer said shift to neutral and restart the vehicle. When I did that the vehicle would not start. It would just crank and crank and then it would finally start for a few seconds. I was going to back my vehicle up out of the road but each time I would try the car would die. I am very thankful this did not happen on the highway or even on the freeway. A friend and myself had to push my vehicle back into a parking spot. The DTC code is a P023F. When this happens, you can't technically shift the vehicle into neutral to push it out of the way because the car has to be running to shift. I was able to force it into neutral, however. I made an appointment with Awesome Chevrolet in Chehalis WA and had to have it towed to the dealer. They stated it was the fuel pump module. I had at that time 18,388 miles on the odometer. Unfortunately, I no longer feel safe with this vehicle in case it happens again. Where I am hours from home or on a 2-lane road or freeway. The fuel pump module failure appears to be a known issue with GM vehicles. The fuel pump module was replaced and was able to be replaced under warranty. I hope that it does not happen again. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

P0128, AC not working, Steering Assist Reduced, and Temp Gauge not working. Problem caused by faulty ECT wiring. First the problem is the ECT is a two wire (signal + and -) 26 gauge wire running through the ignition coil wire harness. Ignition coil signals are very high voltage and fairly fast frequency which causes a lot of EMI which is easily picked up on a 2 wire voltage based wire set. The ECT wiring should have been a twisted shielded pair if running next to Coil wiring or they could have used a single wire resistance thermistor, but they should have just routed the signal a different way to begin with. This is a design issue and it should be a recall...maybe a class action lawsuit is needed to force them to fix it correctly. The FSB (field service bulletin) fix blames loose connector terminals and it patches the computer software to not include ECT wire failures in the Steering, AC, and temp gauge inhibit logic (overtemp readings will still fail off these functions). Also the P0128 code can come back occasionally.

Upon driving my vehicle twice it shut off on the roadway once on an incline when a message of 2 keys detected and flashed on the dashboard prior to the vehicle shutting off. Vehicle would not restart until 15 minutes later it restarted but the dashboard kept flashing 2 keys detected. There was only one key in the vehicle at the time and the key fob has had the battery replaced upon the first incident which was on 11/14/2024 and the second incident was on 11/16/2024.

The brakes failed on my SUV as I was driving on a city street. Yes it is available for inspection. Losing my breaks almost caused a collision with the car in front of me but due to the distance between the cars and the low speed at the time, I was able to avoid collision and detour into a parking lot where I cruised to a stop with the help of a parking lot space concrete stop. The problem was not reproduced by me but the service center computer diagnostics confirmed break issues. The service center says that the cause was low voltage of the car battery which affected the brakes. This is a very dangerous situation if the vehicle can lose complete braking ability due to a low voltage battery. This is the reason for reporting the issue. They replace the battery and said that should fix the issue. They said the only recourse to avoid this happening again is to replace the battery around every 2 years. The issue was inspected by a service center owned by the manufacturer of my SUV. The warning lamps only occurred as the brake system failed. A message of "Brake System Failure" appeared and the "Check Engine" light came on. Within the previous week of the issue the SUV also had other electrical issues such as the Climate Control interface went out and the rear camera also went out.

Steering assist reduced message comes on and temperature guage goes down to cold not working and after you shut car off fan runs full force for 10 minutes. Shows no check engine light or no codes.

The Radiator has a crack in the upper left front of the core causing the fluid to leak and lose pressure causing the engine to overheat. This is a manufacture defect that has not been addressed as of 10/16/2024. The leak was discovered by a certified GM mechanic at a dealership when doing routine maintenance and inspection. The vehicle has never had any indication or advisory light that would alert the operator. As the engine overheats it can cause many of the other components of the vehicle to disable, including but not limited to the ADAS systems as well as power steering and/or collision safety components. This is a manufactures defect with the aluminum radiator that needs to be addressed immediately. Given the information from multiple GM dealerships the amount of newer low mileage Blazers that have been confronted with this problem is unprecedented. This not only creates a danger for the passengers of the vehicle but also every other vehicle on the road.

Power Liftgate randomly opens when driving or parked. Even when the power switch is turned to off the liftgate will unlock randomly either parked or driving. I have contacted the dealer and GM no recall currently exists. Dealer recommended replacing the latch mechanism which I have ordered to replace myself.

Leaking coolant from bad radiator “just out of warranty”. Roughly $2000 repair estimate

Instrument cluster completely blacked out, providing no information on vehicle speed or status of operation. Operation of a vehicle without instrumentation would seem to be a safety risk. Chevy dealer diagnosed problem as IPC error U0155, installed updated software to correct the problem. The repair was not covered by the extended warranty I purchased through General Motors when I bought the car. I think a defect such as this should be the manufacturers responsibility, I believe GM has a service bulletin out for this problem covering several models of their vehicles. This should be upgraded to a recall.

The contact owns a 2021 Chevrolet Blazer. The contact stated that oil was leaking from the vehicle. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the cam shaft carrier needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken to an independent mechanic, who determined that there was a separation in the transmission, oil cooler line, valve, and hoses that needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and submitted a complaint. The failure mileage was approximately 63,000.

I have a 2021 Chevy Blazer which has had to have two radiators replaced with less than 50,000 miles on the vehicle. The first time was in March of 2023. I took my vehicle in for an oil change and the technician told me the radiator was cracked and all of the coolant was drained from the vehicle. It must have just run out because I regularly check my fluids and the vehicle was not overheating prior to the appointment. The vehicle had about 32k miles on it, so the radiator was covered under warranty. Now in April of 2024 with 49k miles, I take my vehicle in for another oil change and the radiator is cracked, again, with coolant leaking. The technician told me two things that are concerning about this. 1.) This is a known issue on the Blazers that they’ve done multiple repairs on. 2.) There is a piece of plastic under the radiator that catches the coolant when it leaks, making it hard to notice an issue because the coolant doesn’t pool on the ground underneath. My service advisor went to bat for me against GM, who partially paid for the second radiator. This brought my installation cost to $235, even though it was no longer under warranty. Radiators cracking is a serious safety issue because if the driver doesn’t notice the engine overheating, it could cause a vehicle fire putting the occupants and surrounding environment in danger. There are no warning lights on the vehicle to tell you if there is low coolant, other than noticing the temperature gauge when it is too late. I don’t know if GM didn’t install rubber bushings to absorb the impact of bumps on the road, or if it needs some rubber washers on the bolts, but something is missing. Online forums will confirm that this is an ongoing issue for owners of the Chevy Blazer

I was driving on the highway when my car started operating like it was in neutral. RPMs was high but the car started to stall and slow down and because of it I had to immediately pull over. The car would not go into gear. I attempted to put it in drive ajd press the acceleration pedal but it just revved. Same with putting it in reverse. It's a safety concern because my car could not maintain highway speed and abruptly went stagnant. I had the vehicle towed to dealer and they replaced the entire transmission system. The car always had a shudder feel to it when accelerating from 0 onwards to 40 mph.The day this occurred there was no blatant warning signs.

The failing component is the ESC/power steering. It is available for inspection. It is currently at Bayway Chevrolet in Pearland, Texas. My safety and the safety of others is at risk when the power steering fails not allowing me to turn out of the way from road hazards or even make legal turns. This could result in an auto accident causing bodily injury or death to me or other drivers. Yes, a service shop in Alvin was able to see/reproduce the errors. No, however the vehicle is currently in the shop being looked at by service techs. There were no warning lights, messages, or other indications prior to [XXX] around 2pm EST, when this happened. The vehicle was driven home from work that evening. The vehicle was not driven all day [XXX]. Today, [XXX], I drove the vehicle to the service shop in Alvin, Texas to replace the battery. Around 10:45am EST, the errors/messages came on. I drove back to the battery shop in Alvin and they ran the codes. This is where they were able to feel the steering tighten up. I drove the vehicle to Bayway Chevrolet for repairs. Once I receive an estimate or repair invoice, I would be happy to send that over. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I have made numerous complaints to Jeff Schmitt Chevy dealership Dayton, Ohio regarding parking brake being engaged upon starting vehicle even though vehicle is on flat surface. Twice now, last occurring [XXX], while gradually increasing speed to make a left hand turn the vehicle suddenly self-brakes, during acceleration, making a harsh screeching sound. I remove my foot completely from the accelerator before I accelerate again. The initial incident was reported to chevy dealership. No findings have been noted per dealership. No accidents have occurred. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2021 Chevrolet Blazer. The contact stated that the check engine warning light was illuminated. The contact was unable to use the electrical features in the vehicle. The vehicle was taken to the local dealer, where it was diagnosed that the purge pump needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and opened a case. The approximate failure mileage was 36,000.

Receiving 3 different errors on dash display. 1) Action Required- No Remote Detected 2) Action Required- No Remote Detected Press Brake to Restart 3) No Remote Key Wa Detected Place Key In Transmitter Pocket Then Start Your Vehicle. All of these errors are intermittent and have appeared with using 2 different Remotes. Batteries have been replaced also. This in itself is not so much a safety hazard (annoying), but what is intermittently happening is the car shuts down while in drive and in reverse. So far it has not shut down on the freeway but has shut down while on City streets. We have taken it to 2 different GM Dealers a total of 7 times in the last 3 months(currently at the dealer now). Each time the dealer is saying they cannot duplicate the errors. We get it back and within 1 (usually the same day)day it is right back with the errors. Clearly these errors are a nuisance and dangerous if the vehicle shuts down. I have additional service documents and photos and videos but due to the maximum I can provide they are not uploaded.

The breaks make a squealing noise all the time which is concerning. I was told by Beaver Chevrolet that this is normal as the breaks were changed in newer car models. They have made a squealing noise ever since I bought the car brand new. I took the car into Beaver Chevrolet approximately 4 months ago and was told that they were unable to replace the breaks because they "weren't squealing bad enough". They did spray my breaks down, however they told me that once I hit 36,000 miles if the issue was still occuring (which it will be) that I would have to pay to have the breaks sprayed. The issue persisted and the spray they used only lasted a few days. Typically breaks should not squeal unless they have gone bad, which isn't the case here. I find this issue to be a safety hazard as how are customers supposed to know when their breaks actually do go bad if they squeal all the time. The issue was reproduced, but it is unclear what their standard is for determining the actual noise to breaking ratio.

The Esc display came up then sutbality sensor show and my back wheel went right. My car flipped twice and then landed on the guardrail.

The contact owned a 2021 Chevrolet Blazer. The contact stated while driving 69-70 MPH, the steering wheel strongly pulled to the left side and into the roadway median. There was no warning light illuminated. The contact stated that the vehicle hit the median and bounced, facing incoming traffic. The contact slammed on the brakes and shifted into park (P). The air bags deployed. The contact was able to exit the vehicle with the assistance of bystanders. Emergency services arrived at the scene but the contact was not transported to the hospital at the time. The contact later received medical assistance and was informed she had sustained soreness on the neck, shoulders and bruises all over the body. Additionally, the contact was advised she had sustained post traumatic stress disorder (PTSD). A police report was filed. The vehicle was towed to a tow lot, where it was totaled. The dealer was not notified of the failure. The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 24,000.

Tires - purchased vehicle from car dealership two weeks ago. Drivers side rear tire low. Aired up was low again next day. Blow out On freeway tires are unsafe. Per Discount Tire said tire could not be repaired . all four tired unsafe, tread issue. Replaced two rear tires. Unknown when light came on. Tire size 265/45r21 dot A3LMWD 30

While driving on the highway at speeds above 60 MPH, the engine shut off. There was a slight shuttering immediately prior, but no other indication. I had to pull over, across three lanes of traffic, during rush hour, in a fairly heavy rain and became a disabled vehicle on the shoulder. After being towed to the dealer, it was determined that the fuel pump was faulty. The vehicle had 4,954 miles on it so there was no reason for this part to have failed so early.

The radio and all the sound notifications such as turn signals, emergency flashers, crash avoidance, cross traffic, lane departure, and the use of the emergency OnStar system do not work. this has been addressed in GM service information #PIT5971B: Loss OF Audio and OnStar LED is Red - (Apr 3, 2023) GM appears to be addressing this as an inconvenience of not having the entertainment of the radio and not the safety features associated with it. This also includes the use of hands-free cell phone.

On Friday, April 28, 2023, at about 11:30 am, my car, died as I was driving it out of the grocery store parking lot; luckily, it didn’t happen as I was crossing the busy highway. I attempted several times to restart it, with no luck. There were no warning lamps, messages or other symptoms of this problem. The vehicle was in the middle of an aisle, blocking the aisle and many cars in parking spots, so I managed to get it into neutral and it backed around into parking spaces where the left rear quarter stopped against the front tire of a Ford F-350. I was actually thankful for the truck as I had no steering or brakes, and I was on a slight hill heading towards the road. I had it towed to the dealership, which was unable to tell me what the problem was before I obtained a ride home at 3:30 pm and that they would call me when they had it figured out. When I returned home, my husband had searched the internet for recalls for the car and was unable to locate any. I called the service department the next day, Saturday April 29, and was told that the problem was the fuel pump control module, which was under warranty, and it could be 3 months before it was fixed as they didn’t have one, and there was a large backorder. The fuel pump module was recalled on other GM vehicles GM #N212382040 and NHTSA campaign #21V739000, and there was another recall by GM on February 6, 2023 Recall #N222372310 that did NOT include the Chevy Blazer.

The contact owns a 2021 Chevrolet Blazer equipped with Continental Tires, Tire Line: Crosscontact LX Sport, Tire Size: 235/65/R18, DOT: (Unavailable). The contact stated that while driving at various speeds and driving over snow covered roads, the rear end was swaying. The tires were wearing from the inside out. The vehicle was taken to the local dealer where it was diagnosed that the tires needed to be replaced. The manufacturer was notified about the failure and offered to assist with the repair. The approximate failure mileage was 14,000.

The contact owns two 2021 Chevrolet Blazer equipped with Continental Tires, Tire Line: Crosscontact LX Sport, Tire Size: 235/65/R18, DOT Number: A3LMWD30. The contact stated that while his daughter was driving 30 MPH, the vehicle lost traction. The contact stated that the rear driver’s side tire low air warning light was illuminated. The contact stated he also experienced the same failure with his vehicle. The contact stated all eight tires were bald on both vehicles. The contact took both vehicles to the local dealer, where it was diagnosed with needing all eight tires to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 21,000.

My car caught on fire for no apparent reason. Front of car totally destroyed.

The contact owns a 2021 Chevrolet Blazer equipped with Continental Tires, Tire Line: Crosscontact LX Sport, Tire Size: 235/65/R18, DOT Number: A3LMWD304920. The contact stated that the tread on all four tires were worn. The vehicle was taken to the dealer and the contact was informed that the tires needed to be replaced. The contact was informed that the VIN was not included in NHTSA Campaign Number: 20T018000 (Tires). The tires were not replaced. The manufacturer was contacted and confirmed that the tires were not included in the recall. The contact was advised to contact the NHTSA hotline to file a complaint. The failure mileage was 20,000.

The contact owns a 2021 Chevrolet Blazer. The contact stated that while driving approximately 10 MPH and attempting to make a left turn, the vehicle stalled. The contact depressed the accelerator pedal aggressively several times to get the vehicle to start moving again. The failure reoccurred while the contact’s daughter was driving and attempting to make a left turn at a green light when the vehicle stalled. The contact stated that the failure persisted while driving and attempting to turn to the left. The failure occurred intermittently. The contact stated that only the rear tires would move. The contact took the vehicle to the dealer who was unable to find the cause of the failure. The dealer was not able to duplicate the failure. The failure persisted. The manufacturer was made aware of the failure and opened a case. The approximate failure mileage was 28,000.

I went out to start my car and the light said that it was not reading the key fob because of low battery. I went and got the other key fob which had never been used and had the same result. The car was towed by Chevrolet to the dealer and it has been there for over 3 weeks. They found that it wasn't a faulty key fob but it was the receiver that gets the signal and allows the door locks to open and the engine to start. I tried moving the shift lever, stepping on the brakes, trying the remote start on the key fob and nothing would start the car nor would it lock/unlock the doors. It just kept giving me the notice that it couldn't read the key fob. I called ONSTAR and tried the actions they told me but that did not work either and they said to contact my selling dealer. ONSTAR contacted the Chevy warranty number for a tow truck but at 9PM it was too late for them to make a service call. What if I was out in a parking lot or in a remote area and experienced the same problem with no assistance. I have been trying to find out what the dealer is doing to repair my vehicle but I have to call the GM complaint line in order for them to try and contact the dealer about my car. They finally gave me a rental vehicle since the vehicle is less than 1 year old and only has about 6,000 miles on it.

I had just purchased my vehicle around December 9 2021. On around Decmeber 16, 2021 around 8 am I was driving on the highway 65 miles an hour. & the vehicle came to a complete stop. It kepts saying my fuel tank was empty. I quickly turned off the vehicle & tried turning it on & it did. I dropped it off at the dealership & it came back it was fuel pump. It was supposibly fixed. Comes January 26 vehicle did the same thing gettinf out of work. I got the vehicle back February 17. & today February 19, 2022 the truck did the same thing.

When I am accelerating it seems like my car hesitates to get up to speed, at times feels like it is slipping to get traction. I put my car in AWD and didn't seem to notice the issue, when put back into 2WD, the issue happens, it is not an every time thing, but enough that my husband, who doesn't drive my car a lot noticed it and a coworker who has the same year as mine also has the issue. Of course when I took it into the dealership to have it looked at the car didn't do it, so as far as they are concerned there is nothing wrong with it, which is NOT the case. My husband has a 2020 Blazer and it doesn't have this issue. I understand that it is a different year, but if it has the same engine and transmission I would think there shouldn't be much of a difference in how they both drive. It's very frustrating to spend this much on a vehicle that I leased in May of 2020 and it has been in twice for this issue and the parking break issue (which GM's reasoning as to why this turns on by itself and does not turn off is BS, there is still an issue with this as well) and when serviced there is never anything wrong with it. So could it be an issue with the transmission, traction control or possibly the engine?

The contact owns a 2021 Chevrolet Blazer. The stated that upon depression of the brake pedal, an abnormal grinding noise would emit from the vehicle without warning. When the contact notified the dealer of the failure, he was informed that they were aware of the failure however, there was no fix for the failure. The contact then received a letter from the dealer where he was informed that a repair was under development. Recently, the contact called the dealer for an update and was informed that no update was available and that the repair remained unavailable. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 429. The VIN was not available.

Car purchased on 5/19/21 with 117 miles on it. It now has 1153 miles and the brakes are grinding. The Chevy dealership states that it needs replacement brake pads, but they are on backorder. I have been uncomfortable driving the car after the dealership said it needed new brake pads and have not driven the car for two days. I can get by another four days, but I have a Dr's appointment this coming Wednesday that requires a 50 mile trip.

The brakes are noisy (like metal to metal, worn out) and the brake pedal is soft. Took the vehicle into the dealer (only 1,000 miles on odometer) they say GM is aware of a problem. How many people will die before this problem is fixed? The problem isn’t corrected, and exists today.

The contact owns a 2021 Chevrolet Blazer. The contact stated that while stopped at a railroad track, the vehicle independently stopped and went into crash mode while on the railroad tracks upon acceleration. The contact shifted the vehicle into reverse and then into park. Once the vehicle was placed into drive, the vehicle resumed normal operation. The vehicle was taken to a dealer where they replaced an unknown module and performed a software update. Despite the repair, the contact stated that the failure persisted. The contact also stated that while driving at 40 mph, the traction control warning light illuminated on the instrument panel as the steering power was reduced. The contact took the vehicle back to the same dealer and the mechanic replaced the rear differential, clutch, and control module. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 4,400

Vehicle only has 700 miles and there is a loud brake grinding noise when slowly down at speeds of around 40 MPH.

Vehicle now has about 1200 and when driving, the instrument cluster panel that digital shows your speed, odometer and other information on my vehicle went blank. It is just a black screen. When this happened, it caused the steering wheel controls for radio volume and turning the station to not work. With this, I have no safety features like lane assist now and can't tell my tire pressure.

OCCASIONAL GRINDING NOISE WHEN BRAKING' GRINDING NOISE WHEN VEHICLE HAD LESS THAN 400 MILES

OCCASIONAL GRINDING NOISE WHEN BRAKING

HEADLIGHTS FLASH OR STAY ON EITHER LOW OR HI BEAM,HATCH OPENS ITSELF, AWD POPING, NOISE IN DASH, SHIFTING INTO AWD BY ITSELF, TRANSMISSION NOT SHIFTING CORRECTLY . THERE IS NO PATTERN AND IT THROWS NO CODES. MAJOR ELECTRIC PROBLEMS. THE KEYLESS ENTRY PAD DIDN'T WORK THE DAY I PURCHASED MY CAR. HAD A NEW ONE INSTALLED 3 PROGRAMS AND NOW ALL THIS STARTED.

WHILE DRIVING THE THE WHOLE DASH GOES BLANK FOR A FEW SECOND, THEN THEN IT REBOOTS AND EVENTUALLY MOST OF IT COMES BACK. HOWEVER, IT DID THIS REPEAT THIS CYCLE AND CANNOT TELL IF MY SIGNALS ARE WORKING OR WHAT MY SPEED IS. I HAVE A VIDEO OF IT HAPPENING. THE CAR HAS 2,700 MILES.. I AM TAKING TO A DEALERSHIP