Safety Score
79
Safe
Recalls
0
Complaints
50
NCAP Stars
—
Recalls (0)
No recalls found for the 2021 Chevrolet Blazer.
Owner Complaints (showing up to 50)
| Date | Component | Crash | Injuries | Summary |
|---|---|---|---|---|
| 2026-04-11 | ELECTRICAL SYSTEM | No | 0 | Once I turn the vehicle off, there is a loud sound coming from the engine area that sounds like a fan. Then the first i… |
| 2026-03-09 | POWER TRAIN | No | 0 | My 2021 Chevy blazer Lt v6, has a service bulletin extending warranty on thermostat malfunction, that also causes the … |
| 2026-02-19 | UNKNOWN OR OTHER | No | 0 | At 48,000 miles, check engine light came on and loud fan sound continued after turning car off. Took car to dealership… |
| 2026-02-07 | ENGINE | No | 0 | The 2021 GMC Blazer (and related Chevy Blazer models) is experiencing recurring radiator failures, often requiring mult… |
| 2026-01-07 | ENGINE | No | 0 | Around 55,000 miles, my 2021 Chevrolet Blazer experienced a throttle body failure. The check engine light illuminated a… |
| 2026-01-07 | ENGINE | No | 0 | This submission is an additional report related to NHTSA complaint #11714381. At approximately 55,000 miles, my 2021 C… |
| 2025-12-13 | POWER TRAIN | No | 0 | For about a week and a half my car had made a high pitched wheezing/hubbing sound when started cold. This occurred at a… |
| 2025-12-03 | ELECTRICAL SYSTEM | No | 0 | "Steering assist reduced" message was displayed. At the same time the temperature gauge stopped working and after I shu… |
| 2025-12-01 | UNKNOWN OR OTHER | No | 0 | Thermostat issues, gives warning steering assist decreased and then eventually check engine light, vehicle thermostat d… |
| 2025-11-17 | POWER TRAIN | No | 0 | My 2021 Chevrolet Blazer experienced a radiator failure at approximately 42,000 miles. The radiator and cooling system … |
| 2025-11-16 | FUEL/PROPULSION SYSTEM | No | 0 | Car was running fine yesterday, today does not want to start. Thought it was the battery, bought anew battery. Still wo… |
| 2025-11-15 | ENGINE | No | 0 | In September 2023, when getting my vehicle serviced for a routine oil change, I was told there was a leak in my radiato… |
| 2025-10-28 | ENGINE | No | 0 | Radiator failure caused power steering assist to not function properly and insufficient vehicle heat function. Engine e… |
| 2025-10-17 | FUEL/PROPULSION SYSTEM | No | 0 | I was driving at approx 45 mph when my car lost all ability to accelerate and shut down in the street. Flashing check e… |
| 2025-10-14 | EQUIPMENT:ELECTRICAL:INFOTAINMENT | No | 0 | See attached document for complaint. |
| 2025-09-30 | STEERING | No | 0 | Request for Recall Review – 2021 Chevrolet Blazer Steering Assist and Cooling Fan Issue Hello, I am writing to repor… |
| 2025-09-28 | POWER TRAIN | No | 0 | The contact owns a 2021 Chevrolet Blazer. The contact stated that while her husband was driving 60 MPH, the "Service En… |
| 2025-09-19 | ENGINE | No | 0 | Was informed at today's oil change that my radiator is leaking and it's something that they are seeing a bunch. |
| 2025-09-19 | POWER TRAIN | No | 0 | Steering assist reduced warning came on with engine light. When car turned off , radiator fan continued running for a f… |
| 2025-09-18 | ELECTRICAL SYSTEM | No | 0 | Action Required "Steering Assist Warning" drive with caution, Temp gage reads cold, A/C stops working, engine cooling f… |
| 2025-09-15 | SERVICE BRAKES | No | 0 | Brake booster failed after 50k miles needing repair. Brake became very still, prolonging the time it takes to stop the … |
| 2025-09-13 | UNKNOWN OR OTHER | No | 0 | my vehicle is roughly 40k miles. The temp gauge was stuck on C the cooling fan was running continuously even when the c… |
| 2025-09-10 | POWER TRAIN | No | 0 | I PURCHASED MY 21 CHEVY BLAZER IN 2024 AND HAD A FEW PROBLEMS WITH A TRANSMISSION PROBLEM. THE VEHICLE WOULD STOP AND J… |
| 2025-09-05 | FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING | No | 0 | Auto braking system went off when I was at stop light & began to move forward (was 2nd in line of cars) and I accelerat… |
| 2025-09-01 | FUEL/PROPULSION SYSTEM | No | 0 | Car wouldn’t crank |
| 2025-08-31 | FUEL/PROPULSION SYSTEM | No | 0 | 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 … |
| 2025-08-23 | UNKNOWN OR OTHER | No | 0 | The temperature gauge or thermostat has been replaced 3 times and continues to fail |
| 2025-08-20 | FUEL/PROPULSION SYSTEM | No | 0 | Driving along vehicle shut down in middle of road replace fuel pump, fuel module control in August 2025. Now both top a… |
| 2025-08-15 | ELECTRICAL SYSTEM | No | 0 | The contact owns a 2021 Chevrolet Blazer. The contact stated that while attempting to start the vehicle, several unknow… |
| 2025-07-30 | ENGINE | No | 0 | At routine oil change dealer noticed radiator was leaking. 60,840 miles Took it to an independent repair shop who con… |
| 2025-07-26 | SERVICE BRAKES | No | 0 | 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 … |
| 2025-07-26 | SERVICE BRAKES | No | 0 | While driving my 2021 Chevrolet Blazer LT on the freeway with my wife and child, the “Brake Assist” warning came on and… |
| 2025-07-24 | ENGINE | No | 0 | Coolant smell when parked with engine running. Radiator was replaced under warranty at ~16,000 miles Coolant smell agai… |
| 2025-07-24 | SERVICE BRAKES | No | 0 | Brakes bottomed out. Message on my dash board said “Brake System Failure reduce speed to 62” and the brake went on the … |
| 2025-07-20 | FUEL SYSTEM, GASOLINE | No | 0 | The contact owns a 2021 Chevrolet Blazer. The contact stated that while the vehicle was parked, while attempting to sta… |
| 2025-07-18 | FUEL/PROPULSION SYSTEM | No | 0 | The vehicle has 14,000 miles on it and the fuel pump control module has gone out on it. This happened while away from h… |
| 2025-06-17 | STEERING | No | 0 | 2021 Blazer Message steering assist reduced ESC needs attention 15,000 miles shoukd no way need rack n pinion . Stee… |
| 2025-06-16 | ELECTRICAL SYSTEM | No | 0 | 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 … |
| 2025-06-15 | SERVICE BRAKES | No | 0 | My 2021 Chevrolet Blazer experienced brake failure while driving, without any warning lights or diagnostic alerts from … |
| 2025-06-12 | SERVICE BRAKES | No | 0 | I am reporting a serious safety concern involving my 2021 Chevrolet Blazer, which experienced brake failure while drivi… |
| 2025-06-01 | ENGINE | No | 0 | Radiator leak, leaking antifreeze |
| 2025-05-29 | FUEL/PROPULSION SYSTEM | No | 0 | Fuel pump module. Driving highway speeds lost all engine power as car sputtered to a stop. Luckily car srill ran enough… |
| 2025-05-27 | ELECTRICAL SYSTEM | No | 0 | The temperature sensor fails randomly. I can reset it by unplugging the battery but it will just drop off again in a we… |
| 2025-05-23 | UNKNOWN OR OTHER | No | 0 | Temp stuck on cold, ac doesn’t work and driving assistance off. Fan runs after shutting engine off. |
| 2025-05-23 | AIR BAGS | Yes | 1 | The contact owned a 2021 Chevrolet Blazer. The contact stated that while driving at 30 MPH, a 2012 Mazda CX-7, allegedl… |
| 2025-05-17 | STEERING | No | 0 | Midway home I got a message on my dashboard “steering assist reduced - drive with care”, but my power steering was stil… |
| 2025-05-04 | ELECTRICAL SYSTEM | No | 0 | The temp gage stays on cool. Ac does not work and the radiator fan stays on after car shuts off. Dealership finds nothi… |
| 2025-05-02 | ENGINE | No | 0 | The steering assist stopped working. The defrost stopped working because the ac stopped working. The temp gauge stopped… |
| 2025-04-21 | ENGINE | No | 0 | Took 2021 Chevy Blazer to a Chevy dealer for small leak. 25000 miles and dealer said I have a leak in the radiator and … |
| 2025-04-13 | ENGINE | No | 0 | "Driver Assisted Reduced Use Drive With Care Message" comes on when it is over 70 degrees outside. The temperature gage… |