Chevrolet Blazer Complaints (2021)

128 consumer complaints on file.

#11648760March 17, 2025
POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648464March 15, 2025
SERVICE BRAKES
I parked on an incline using the parking brake and the vehicle could not disengage the brake
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646473March 5, 2025
ENGINE AND ENGINE COOLING, ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641205February 6, 2025
WHEELS, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636726January 18, 2025
ELECTRICAL SYSTEM, ENGINE, STEERING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636324January 16, 2025
STEERING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11635399January 11, 2025
STEERING
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?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11631586December 19, 2024
FUEL/PROPULSION SYSTEM, ENGINE
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)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627628November 26, 2024
ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627479November 26, 2024
ELECTRICAL SYSTEM, STEERING, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11625772November 17, 2024
SERVICE BRAKES
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11621771October 24, 2024
STEERING, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11620474October 17, 2024
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11607401August 8, 2024
UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11594537June 15, 2024
ENGINE
Leaking coolant from bad radiator “just out of warranty”. Roughly $2000 repair estimate
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11591505May 30, 2024
ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11587410May 7, 2024
POWER TRAIN, ENGINE AND ENGINE COOLING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11586843May 3, 2024
ENGINE
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11577420March 14, 2024
POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11569105January 31, 2024
STEERING
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)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to Chevrolet Blazer