Below are recalls and complaints reported to NHTSA for the 2021 Chevrolet Blazer. This information is consumer-reported and provided for general informational purposes only. Vehicles like this may qualify under California lemon law depending on their individual repair history.
The following are consumer-reported complaints filed with NHTSA. These are unverified allegations and are not proof that any defect exists.
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 wer | 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 e | 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
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. T | 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 withou | 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
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 | 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 infor | Car wouldn’t crank
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 issu | 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 AGA | 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 persona
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. | 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 mak
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 occu | "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. | 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 potentia
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 c | 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 | 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.
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 | 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 veh
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 cove | The thermostat and the sensor for the thermostat continues to go bad | 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
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 | 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 whe | 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
Allegedly reported: 1 injury (as reported to NHTSA).
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. | 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 war | 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 th
Brake booster failed after 50k miles needing repair. Brake became very still, prolonging the time it takes to stop the vehicle | 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 trul | 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 te
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. | 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 re | 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 c
If your 2021 Chevrolet Blazer has had repeated repairs for the same problem, you may have rights under California lemon law. Tell us about it and we will review your situation at no cost and no obligation.
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The recalls and complaints shown here are reported to NHTSA and are consumer-reported, unverified allegations. They do not establish that any defect exists in any individual vehicle, and nothing on this page should be read as asserting that the 2021 Chevrolet Blazer is defective. Counts reflect items filed with NHTSA and may not be current. “May qualify” statements are general and do not mean any particular vehicle or owner qualifies.
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