2023 Chevrolet Blazer Problems & Complaints

Re: Vehicle Safety Defect Complaint – 2023 Chevrolet Blazer To Whom It May Concern, I am submitting a formal safety defect complaint regarding my 2023 Chevrolet Blazer. This vehicle has exhibited multiple system failures that present a serious risk to driver safety and public roadway safety. The vehicle was purchased new on July 20, 2023. Beginning on April 21, 2025, at approximately 27,610 miles, the vehicle developed a progressive defect initially presenting as oil-related issues. Despite multiple repair attempts, the condition worsened and required a full engine replacement in January 2026. Following the engine replacement, the vehicle continued to experience critical safety failures, including engine stalling, reduced engine power warnings, and electronic stability control (ESC) alerts. On April 26, 2026, the vehicle experienced a driver assistance system malfunction in which it attempted to steer off the roadway. I was forced to manually disable the system to maintain control of the vehicle. On April 27, 2026, the vehicle exhibited a fuel system failure, including fuel leakage and fuel odor, along with multiple simultaneous warning indicators: • Reduced Engine Power • Service ESC • Steering Assist Reduced / Drive with Care • Power assist driver system disabled This combination of failures presents both a fire hazard and a loss-of-control risk. Additionally, I was informed by the dealership that a high-pressure fuel line, a one-time-use component, was not replaced during the engine installation. This raises concerns regarding improper repair and continued unsafe operation of the vehicle. The vehicle has undergone multiple repair attempts and a major powertrain replacement, yet continues to present serious safety concerns. Due to these ongoing issues, I do not feel safe operating this vehicle. I respectfully request that NHTSA review this matter for potential safety defects that may impact other vehicles of the same make and model.

My vehicle makes a clunk noise when the vehicle is in motion and i press on the accelerator it also makes a little jerk. This mainly happens @ low speeds and on a incline hill. There some type of oil or grease stains where the cv axle goes into transmission. ive felt my vehicle with less power and pulls to the left. Took the vehicle to chevrolet and they said they couldnt duplicate the issue or the oil leak.

Rear brake automatic parking brake motor locked rear wheels. Dealership diagnosed and repaired at my cost. Service parking brake light illuminated and rear brakes locked not allowing vehicle to be moved. After a few restarts brakes released.

The vehicle has turned off twice while driving. Endangering the safety of everyone in the vehicle

The radiator developed a leak at around 36k miles and needed to be replaced. My understanding is that this is an ongoing problem with this vehicle.

My bright lights do not go off when oncoming vehicles or vehicles in front of me are close and when they do dim they go on and off. People flash their brights at me causing me not to be able to sleep and this happens even when they turned off of auto. Another item of concern is that the car would lock and unlock and the interior lights would go on and off. This was fixed but it was a line under the front that was not soldered together at the manufacturer is what the Chevy dealership stated.

The contact owns a 2023 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed with no vehicles or objects nearby, the Forward Collision Avoidance system activated, and the Automatic Emergency Braking System engaged and brought the vehicle to a complete stop. Upon driving off, the vehicle then jerked and jolted. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who informed the contact that the vehicle functioned as intended during the time in the Service Center. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 20,000. The VIN was not available.

ON SEPTEMBER 10, 2025 THE TRANSMISSION FAILED FOR THE 3RD TIME WITHOUT WARNING. THIS TRANSMISSION ONLY LASTED ABOUT 5,500 MILES. WHEN IT FAILS, IT SIMPLY DOES SO WITHOUT WARNING. WHILE DRIVING IT WLL START SHUDDERING AND WHEN YOU STOP IT JUST WONT GO AFTER THAT. gm KNOWS THERE IS AN ISSUE WITH THESE 9 SPEED TRANSMISSIONS BECAUSE THEY ARE ON BACKORDER AND MY VEHICLE HAS BEEN IN THE SHOP FOR OVER TWO MONTHS WAITING ON PARTS. SINCE THIS IS THE 3RD FAILED TRANSMISSION UNDER WARRANTY, I CREATED A COMPLAINTWITH GM AND REQUESTED A BUY BACK BUT THEY REFUSED.

On July 31st 2025 my vehicle would not sift out of first gear. I had vehicle towed to Kelly Chevrolet in [XXX] . After a failed repair attempt on August 18 2025 have been waiting on back ordered valve body part number 24045659. No eta on this part even though a transmission replacement would resolve but dealer refuses to replace. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Since I’ve got the vehicle i experienced issues with it not going in drive or reverse sporadically. I was air to obtain this in video and show it to the dealer for the first time Dec 2023. In addition and overtime it’s seems this issue may go hand and hand with the lane assist issue that had been known on Chevy models where they either don’t work of they don’t recognize the lanes correctly and they pull although your in the correct lane.i have specifically taken the car in on 3 or more occasions about it disengaging and not driving forward or backwards. More recently it started to seem as if while u was actually driving the car did not want to accelerate forward and then while trying to accelerate the steering wheel pulled and caused the car to spin out of control on the freeway. The car was just in the shop from End of April till May and the issues are unable to be duplicated so I just keep getting pushed off with the car. The car radio constantly malfunctions and glitches i several different forms, black screen no sound or not allow Bluetooth capabilities. My most main concern is this power train issue and me getting stuck with a car that is going to be it of warranty and the issue has never been resolved even though I have showed the dealership a live video of the occurring issue that there is something wrong here.

Thermostat not working. Causing fan to run as if the vehicle is overheating

I am writing to inform the appropriate authorities of the issues that I’ve continually had with my 2023 Chevrolet Blazer. It has come to my attention that the aforementioned vehicle will need a new transmission and possible engine repair currently totaling at just over 6,000 dollars in repair costs. When I was provided with the total repair cost I was informed by the certified service representative that this was a common issue for the Blazer model and that GM was aware of the ongoing issue. I’ve reached out to GM with my concerns regarding this vehicle and the fact that this is an issue that has in prior dates prompted recalls for blazer models from the year 2020-2024. I have because of the transmission defects/ failures been stranded and unable to shift gears required for proper motion of the car. To which I am sure you can understand the public safety risk of an inoperative transmission. I have taken the car in for service concerning the transmission on 3 separate occasions within the last 10 days and was told by prior service technicians that “ No problems were visible” leading to the total breakdown of the transmission. I reached out to GM and told them of my wish to return the leased vehicle early due to my fears of now driving and operating the car and was told that I was not eligible for a buy back. GM is maintaining its stance of no liability and I am seeking outside help from this governing agency to ensure that repair costs are fully covered for this defective product.

The contact's father owns a 2013 Chevrolet Blazer. The contact stated that while his father was driving at approximately 40 MPH straight forward, the brake pedal was depressed, and it traveled to the floorboard. Then, the brake pedal was lifted, and the brake pedal traveled a second time to the floorboard. The vehicle did not slow down as intended, and the vehicle crashed into the rear of another vehicle. The air bag did not deploy, and no warning lights illuminated. The contact's father sustained a facial bruise. Medical attention was not needed. A police report was filed. The vehicle was towed to a lot where it was pending an inspection from the insurance company. The manufacturer was not notified of the failure. The failure mileage was 34,000.

The contact owns a 2023 Chevrolet Blazer. The contact stated while driving at an undisclosed speed, the Lane Keep Assist feature steered the vehicle to the left while the vehicle was driving inside the lane. The Lane Keep Assist warning light was illuminated. Additionally, the vehicle also experienced a loss of power steering assist. The contact stated that the failure occurred after the vehicle drove over a pothole. The contact also stated that the dealer had previously replaced the front-end bracket after another vehicle struck the front end while the vehicle was parked and unoccupied in a parking lot. The vehicle was taken to a second dealer, Escude Chevrolet of Easley (5010 Old Easley Bridge Rd, Easley, SC 29642), but the cause of the failure could not be determined. The contact was informed that the tires were the incorrect size for the vehicle. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 8,500.

Transmission going bad car shakes and studders upon acceleration

The contact owns a 2023 Chevrolet Blazer. The contact stated while driving at an undisclosed speed, the vehicle shuddered, and the transmission was difficult to shift into gear. There was no warning light illuminated. The vehicle was taken to an independent mechanic and was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The vehicle was taken to the dealer, where the same diagnostic information was provided. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 96,244.

Oil leaking from the Cam Shaft Carrier Seal.

Addition to Case #[XXX] Hi: Read the following response from Chevrolet Care at the end of this Email about my braking problem. Take Note That Chevrolet is Admitting that in a case like mine (wet, slippery snow conditions) I only have Basically Two Wheel Braking and those two wheels (tires) are sliding during the complete stop. This happens when driving in town (20 -25 mph) The rear wheels as Chevrolet says have a drag effect, (basically no braking) Chevrolet has created a crash Hazard with this over engineered braking system when used in wet slippery snow conditions. Thank You [XXX] See Enail from Chevrolet Cares Hello [XXX], Thank you for your patience and for providing this information. We received an update from your dealership, Bergstrom Chevrolet Of Manitowoc, who advised the following: The system is functioning as normal. Brake pad thickness was measured at 8mm on all 4 wheels. The ABS system doesn't activate on all 4 wheels unless there is a total loss of traction across all four wheels which would indicate a total loss of control. With two wheels activating and the rear wheels still spinning is allowing for the retention of control by allowing for braking to the rear wheels but at a lesser degree to create stability and drag (braking) to maintain control and steering capabilities during the loss of traction at the front end. The ABS system does allow for the adjustment of braking power to specific wheels in an effort to maintain proper traction and steering prior to the emergency systems engaging in the event of a slide. The dealership is our eyes and ears on the ground, and I will stand by their judgement. However, if you feel strongly against the dealership's judgement, it is to your discretion on what dealership you would like to work with. Please note, this does not guarantee a different resolution. Please let me know if you wish to visit another GM location for further assistance, we're here to help. Tea Chevrolet Customer Care INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

This problem is with a 2023 R/S/ AWD Blazer: When there is wet slippery snow, and I apply the brakes normally the system immediately goes to rapid clicking of the ABS system activated on the front brakes and I hear no clicks from the rear wheels. From the time of the ABS being activated the front wheels go into a slide and the rear wheels only roll along with no braking action as I have opened my driver's door and watched the driver's rear wheel while activating the brakes. I have been to the dealer two times, and they find nothing wrong. I found on the internet one other person complaining with the same issues as me on a 2021 R/S AWD blazer. When this happens, it is a accident waiting to happen situation.

On February 14, 2025, at approximately 0700 hours, I was traveling southbound on XXX, approaching a left turn (eastbound) onto XXX. I was the first vehicle in the turn lane with no other vehicles or pedestrians in front of me. The road conditions were clear, dry, and cold. Upon receiving a green light to proceed with my left turn, I began to accelerate without issue. However, approximately halfway through the turn, my vehicle's pedestrian collision avoidance system was unexpectedly triggered. The red windshield alert light began flashing, accompanied by an audible warning, followed by hard braking. My vehicle came to a stop in the middle of the turn, despite there being no vehicle, pedestrian, or any other object in my path. This sudden and unwarranted activation of the emergency braking system put me at great risk. Had a vehicle been traveling northbound on XXX, it would have collided with my vehicle. Similarly, if there had been a vehicle behind me, it could have caused a rear-end collision. The system’s phantom activation, with no clear reason, was extremely alarming and could have resulted in a serious accident. I have experienced sporadic false alerts in the past, including red windshield alerts with audible warnings, typically during heavy traffic in parallel lanes. However, this was the first time the system engaged the brakes. I immediately deactivated the feature after returning home. On February 25, 2025, I took my vehicle to XXX, for inspection. During my visit, the service department could not identify any issues with the system. They kept the vehicle for further diagnostics and performed a road test on February 26, 2025. However, no issue was found, and the emergency braking did not activate during the test. I was informed that there was nothing more they could do.

Engine light on caused by emission system failure. Sensor unable to be changed until recall. Remote start unavailable while engine light is on. Had issue. Looked at four times at dealership. No correction taken.

While my wife was pulling into park the car and pressing the brake, the car all of a sudden accelerated into the building. Pressing the brake failed to stop the car. No person was in the way of the car so no one other than my wife was at risk of injury. The problem has not been reproduced since the car was totaled. The car was inspected by the insurance for loss but that was it. Police and manufacturer have not inspected the car. No warnings were presented prior to the accident.

The driver-side half-shaft disengaged from the transmission. This caused a roll away of the vehicle when it is thought to be securely in "park" gear cuasing a frontal colisión.

The contact owns a 2023 Chevrolet Blazer. The contact stated that there was a dark shadow and circle on the headlight while driving at various speeds. There were no warning lights illuminated. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 14,000.

The contact owns a 2023 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed and making a left turn, the vehicle unexpectedly came to a complete stop for several seconds, and then was able to continue driving. An unknown warning light was illuminated. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The vehicle was not repaired. The failure recurred on several occasions. The manufacturer was not made aware of the failure. The failure mileage was approximately 100.

I purchased this car in May 2023.Since day 1 one the car stalls after filling and out of nowhere. Can be sitting still or going down the highway and highway sped. I took it on snd they could not find anything. Was told to keep track of when it happens. After almost being rear ended several tons and being put in extreme safety I called them and took it back in . They have now had since 9/21/2023 saying they’re some kid of valve problem in the gas tank. So I am paying for a brand new car that is unsafe to drive and is at the dealer for who knows how long .

The contact owns a 2023 Chevrolet Blazer. The contact stated that while making a left turn, the contact heard an abnormal sound, and the accelerator pedal was depressed but the vehicle failed to accelerate as needed. No warning light was illuminated. The vehicle was towed to the dealer where it was diagnosed that the transmission had slipped into neutral, and the transmission gear box had fractured, and the transmission was unrepairable. The manufacturer was made aware of the failure and informed the contact there was no recall on the VIN. No additional assistance was provided. The failure mileage was approximately 6,500.

Vehicle having multiple stalls with ABS light on while driving vehicle been at the dealership technician tried to repair it did not get fixed. Returned again stated that it was a wheel speed sensor. My vehicles been at the dealership for over two months now with no part ETA. Multiple instrument cluster lights and vehicle stalls while driving.

The contact owns a 2023 Chevrolet Tahoe. The contact received notification of NHTSA Campaign Number: 23V172000 (Power Train) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Vin tool confirms parts not yet available.

The contact owns a 2023 Chevrolet Blazer. The contact received notification of the NHTSA Campaign Number: 23V172000 (Power Train) however, the part to do the recall repair was not yet available. An undisclosed dealer was contacted and confirmed that the parts were not yet available for the recall repair. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2023 Chevrolet Blazer. The contact stated that on several occasions while driving at night, the driver’s side headlight failed to illuminate properly, and contact was unable to see more than 30-feet ahead of the vehicle. The vehicle was taken to a local dealer however, the failure could not be duplicated. The failure reoccurred, and the vehicle was taken back to the dealer, where it was diagnosed that the headlamp needed to be replaced. The vehicle was repaired; however, failure persisted, and the contact stated she was unable to see the markings on the roadway while driving. The vehicle was taken back to the dealer however, the failure could not be duplicated. The manufacturer was made aware of the failure. The approximate failure mileage was 5,000.

I was turning left at an intersection on 5/5/23 and the brakes locked up for no reason. As I entered the intersection the vehicle flashed the automatic emergency braking lights and locked up the brakes as I turned left. The lane in front of me was perfectly clear and the sudden stop fortunately didn't cause the vehicle behind me to rear end me. My wife and I were totally shocked and confused why this happened when there was clearly no obstruction ahead of us or reason to lockup the brakes. This is an absolute flaw and could have caused an accident and/or injury. This ADAS system is very sensitive in my opinion and constantly goes off on parked cars when driving in my subdivision. This I guess is unavoidable but the incident that happened is not explainable or acceptable!

The contact owns a 2023 Chevrolet Blazer. The contact stated that the power lift tailgate was lifted when the vehicle was parked, however after placing items into the rear of the vehicle, the tailgate mistakenly closed, hitting the contact in the eye. The contact sustained a left eye injury. Medical treatment was not needed. The was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 6,000.

The contact owns a 2023 Chevrolet Blazer. The contact stated that while driving approximately 50 MPH, the vehicle experienced unintended acceleration and the speed increased to over 70 MPH. The contact indicated that while depressing the brake pedal the vehicle failed to slow as needed and the parking brake was activated to eventually stop the vehicle. The vehicle was later towed to the local dealer who was unable to determine or confirm the unintended acceleration failure. The contact was informed that the brake rotors and brake pads needed to be replaced due to excessive wear. The contact stated that during a previous unintended acceleration failure, the speed was reduced while depressing the brake pedal; however, the vehicle would accelerate when the brake pedal was released. The manufacturer was notified of the failure, but no assistance was offered. The approximate failure mileage was 9,000.