Chevrolet Blazer Complaints

289 consumer complaints on file.

#11739035May 20, 2026
PARKING BRAKE
The contact owns a 2024 Chevrolet Blazer. The contact received notice of NHTSA Campaign Number: 25V433000 (Parking Brake). The contact stated that on several occasions, when he and his wife put the vehicle in reverse (R), the vehicle did not reverse as intended. He observed an "activate park brake switch" message that appeared. Additionally, on one occasion when his wife put the vehicle into reverse (R), the vehicle abruptly stopped but continued to work normally shortly after. The vehicle was towed to a dealer where it was diagnosed that the harness needed to be rerouted and anti-abrasive tape installed. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 8,600.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738977May 20, 2026
ELECTRICAL SYSTEM
The Telematics Module failed and is on backorder. This is a known issue across the U.S. This makes it so OnStar doesn't work and I am paying for it. Not just that the safety concern of it not working. GPS, Maps, Level 3 Tesla doesn't work. Car is really not usable as we can't charge on a level 3 when going over 100 miles. We have loss access to navigation, Google Built-In services, the myChevrolet apps, and even core safety and convenience features tied to connectivity, including OnStar and Super Cruise.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738765May 19, 2026
STEERING
The vehicle showed an error on the dash which stated "Action Required Steering Assist is Reduced Drive with Care" I tool the vehicle to the dealer I purchased it from McClusky Chevy at Kings Auto Mall in Mason Ohio. They informed me that the error code is C0460:58 and GM has a service bulletin 20-NA-215 which advises to replace the Steering Gear due to internal component interference. No one explained to me that this could cause catastrophic failure and lead to a crash before I left the dealership. They could not replace it as they said they do not have the part and it is on national backorder. Additionally they told me the repair would cost me $3,400. The vehicle has 42k miles on it and this repair is not under warranty as the warranty that would have covered it expired in March of 2026. I have taken the vehicle to a different GM dealer - Tom Gill GMC in Fairfield Ohio - they are waiting on the part and I have a case opened with GM regarding the costs. You would think that if there is a risk of a catastrophic failure which could cause harm to my self or someone else - the dealer would have an obligation to tell me so before i drive off. If not legally, certainly morally.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738512May 18, 2026
ENGINE
I have a 2022 Blazer with a 3.6 engine. The thermostat has failed and dealer says only certain blazer vehicles are covered under aspecial warrnty exstesion. I know several people having the same problem.I have a check engine light, with a scan shows code P0128(thermostat0. I also have a display of power steering assist reduced and tempature gauge stays much lower than normal.. When you turn vehicle off the high speed cooling fans remain running ub=ntil battery is dead.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737304May 12, 2026
SUSPENSION
Driving on straight road going speed limit. Heard a pop behind me like a tire pop. Car fish tailed uncontrollably and ended up crashing into a Ranch Fence on the right side of the road. 2 of my kids and myself had injuries. When we got off the vehicle witnesses and I saw A rear link broken which keeps the tires straight.
Crash:
Yes
Fire:
No
Injuries:
3
Deaths:
0
#11737137May 11, 2026
ENGINE
I have received this warning a few different times “Steering Assist is Reduced". Which causes my vehicle to not blow cold air when AC is on. Fans are louder than normal. And when I turn off my vehicle fans continue to run for roughly around 8 minutes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11735127May 1, 2026
FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
I am reaching out regarding an ongoing issue with my 2021 Chevrolet Blazer. The vehicle is experiencing a noticeable stutter or hesitation when shifting between second and third gear. In addition, there are instances where the vehicle accelerates unexpectedly or more aggressively than intended. This behavior is particularly concerning, as it presents a potential safety issue during normal driving conditions. These concerns have become increasingly noticeable, and I am concerned they may indicate a transmission or related mechanical problem that requires prompt inspection and resolution. Please advise if there are any known service bulletins, recalls, or warranty coverage related to these issues. For reference, the vehicle has been properly maintained and this behavior is not consistent with normal operation. Given that this is now the third major issue I’ve experienced with this vehicle, I am hoping this matter can be addressed without additional out-of-pocket expense. After additional research, I have learned that other owners have experienced the same issue. Others have stated the following: 1. Hesitation, stuttering, or jerking between gears Owners of 2020–2021 Blazers report hesitation and jerking during acceleration, sometimes described as gears “shifting in and out rapidly.” Forum users mention sluggish shifting or slipping feelings, especially at certain speeds. Others report hard or delayed shifts at low speeds (like 15–25 mph). 2. Shuddering / vibration (often tied to torque converter) There are repeated mentions of “shudder,” “surge,” or vibration during acceleration. Some cases were linked to: Contaminated transmission fluid Torque converter clutch (TCC) issues One owner said the problem felt like a bad torque converter and required service attention. 3. Unexpected acceleration / lunging Drivers across GM vehicles (including similar transmissions) report: “Jerking,” “bucking,” or “lunging” during acceleration Some describe needing to
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734585April 29, 2026
ENGINE, FUEL/PROPULSION SYSTEM, STEERING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734510April 29, 2026
ENGINE, FUEL/PROPULSION SYSTEM, SERVICE BRAKES
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?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734437April 28, 2026
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734306April 28, 2026
ELECTRICAL SYSTEM
Driver Information Centre (DIC) and Infotainment go dark. This has happened twice now over the last 2 months. While driving suddenly the infotainment goes blank and loses the radio and then the DIC follows by going blank (dark). So I was left with no speed indication. The car drives normally during that time. After 30 seconds to a minute the screens come back on as if it rebooted while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733995April 27, 2026
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, UNKNOWN OR OTHER, FORWARD COLLISION AVOIDANCE: WARNINGS
The front camera lens cover — located in the grille below the Chevy bowtie logo — has developed a spiderwebbed/shattered crack pattern. There is no impact damage to the surrounding grille or bodywork. The vehicle was garaged and not in use when the damage was discovered. The camera appears to still be working and parts of the image are crystal clear but the cracks in the cover distort the picture and make it impossible to use reliably. This is consistent with a material defect, not road damage. I have opened a case with GM Customer Care regarding this defect. My case number is: XXX. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733441April 23, 2026
POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733028April 22, 2026
FORWARD COLLISION AVOIDANCE
The contact owns a 2025 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed, the Forward Collision Avoidance system activated while there were no objects or persons in front of the vehicle. The failure reoccurred on several occasions. The Forward Collision Avoidance warning light illuminated, and the message "Approaching Person" was displayed. The vehicle was towed to a dealer to be diagnosed; however, the failure was not duplicated. The vehicle was not diagnosed or repaired. The vehicle was taken back to the dealer to be diagnosed; however, the dealer was unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 4,100.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11732946April 22, 2026
PARKING BRAKE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11732623April 21, 2026
POWER TRAIN, STEERING, UNKNOWN OR OTHER
My engine coolant temperature sensor failed. Replaced it and still not fixing the issue. This takes my steering assist away as they are all interlinked? I have seen on forms this is a common issue. This has the potential to blow up my engine, I’m not sure how this is not a recall with so many 2020-2026 blazer owners having the same issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731998April 18, 2026
UNKNOWN OR OTHER, STEERING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731919April 17, 2026
VEHICLE SPEED CONTROL, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The cross pedestrian warning activates without any object there and slams on the brakes causing severe neck problems. The cruise control doesnt disengage when pressing on brake pedal causing drive to swerve to avoid crash.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11731606April 16, 2026
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11730609April 12, 2026
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to Chevrolet Blazer