2021 Chevrolet Blazer recalls and problems

The 2021 Chevrolet Blazer has 1 safety recall and 142 owner complaints filed with NHTSA. Recall repairs are free at any Chevrolet dealer.

Recalls

Complaints

142

Crashes / fires

6 / 1

Injuries / deaths

7 / 0

Recalls may cover only some 2021 Chevrolet Blazer vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.

2021 Chevrolet Blazer recalls

Recall 20V-811: Seat Belts

Reported Dec 23, 2020 · 470 vehicles affected · General Motors, LLC

Problem: General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.

Risk: If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury.

Fix: GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began January 29, 2021. Owners may contact GMC customer service at 1-800-462-8785, Cadillac customer service at 1-800-458-8006, or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202322230.

2021 Chevrolet Blazer problems reported by owners

Problem area	Reports
Engine	43
Electrical System	41
Unknown or Other	23
Power Train	20
Service Brakes	19
Fuel/Propulsion System	17
Steering	15
Forward Collision Avoidance	8
Tires	5
Suspension	4
Engine and Engine Cooling	4
Lane Departure	3

Most reported parts

Forward Collision Avoidance › Automatic Emergency Braking — 4
Forward Collision Avoidance › Warnings — 3
Structure › Body — 2
Tires › Tread/Belt — 2
Lane Departure › Assist — 2
Forward Collision Avoidance › Crash Imminent Braking — 1
Back Over Prevention › Rearview System Braking — 1
Lane Departure › Warning — 1

Typical mileage at the time of the problem: 36,463 miles (median of owner reports).

Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.

Recent 2021 Chevrolet Blazer complaints

Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.

Unknown or Other · reported Oct 23, 2026

In February 2023 we noticed coolant on our garage floor. Car was taken to GM dealership was told radiator seams were leaking. Replaced radiator February 14th 2023 and car had 14,597 miles cost covered by GM warranty. On October 8, 2026 vehicle taken to second GM dealership for driver assist not working be careful. The cooling fan loud when car was turned off. Dealership told us the radiator was again leaking on the seams and will need third radiator (original plus two replacements). The car had 44,328 miles. Cost quoted was $2,125 plus tax and fees. Called GM service line and filed a…

Power Train · reported Oct 22, 2026

Torque converters are going out and causing people to need new transmissions. I was told by dealership that evaluated mine this is a known problem! Iâve also encountered others who have same issue with their cars.

Unknown or Other · reported Oct 18, 2026

My wife and I were just driving and suddenly the motor started stopping installing. We managed to get over toward the curb and shut the motor off and restart it. Then it ran normal. When it did stall out, and we made it to the curb, it shut itself off. That was yesterday then this morning it started to do it a little bit when we left the house.

Electrical System · reported Oct 15, 2026

The contact owns a 2021 Chevrolet Blazer. The contact stated that while driving at 35 MPH, a loud cracking sound was heard and there was gray coming from underneath the hood. The contact parked the vehicle. Additionally, the steering wheel failed to turn in the intended direction. Upon opening the hood, the contact noticed gray smoke under the hood. The contact's minor child was occupying the vehicle during the failure. The vehicle was taken to an independent mechanic, where the contact was informed that the AC compressor had melted, requiring replacement of the AC kit and expansion valves.…

Unknown or Other · reported Oct 9, 2026

Steering assist reduced light came on, fan kept running after shutting off, brought to dealer to see if it was covered under the gm special coverage for thermostat, they say the radiator needs to be replaced for a leak. I looked it was leaking a bit on the top driverside corner, not actively leaking but a bit of corrosion where it had. So they want to replace the thermostat(covered under gm special coverage), the fan and radiator also replaced. From what I have read online this is a known issue with these radiators leaking at the seams. People end up replacing the radiator multiple times and…

Other Chevrolet Blazer years

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Compare all Chevrolet Blazer years · All Chevrolet models

Frequently asked questions

Does the 2021 Chevrolet Blazer have any recalls?

Yes — NHTSA lists 1 recall for the 2021 Chevrolet Blazer: 20V-811 (seat belts). Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.

What is the most common problem with the 2021 Chevrolet Blazer?

Owners report engine problems most often (43 reports), followed by electrical system (41). The typical mileage when problems were reported is about 36,463 miles.

Are Chevrolet recall repairs free?

Yes. Safety recall repairs are free at authorized Chevrolet dealers, whether you are the first owner or bought the car used.