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2021 Chevrolet Blazer
Solid pick — the complaint record is strong for its age. It does carry safety recalls, so confirm every one shows "remedy completed" on the VIN before money changes hands.
121 owner complaints · 1 recalls · data verified July 10, 2026 · source: NHTSA
Why buy?
Complaints are still coming in strong late in this car's life — a chronic-problem pattern, not early teething.
Electrical system problems dominate (31% of complaints, typically reported near 22k miles).
The math, shown
Full methodology →Complaints filed per year
Fading = early teething worked out. Climbing = problems aging in.
The road ahead
What breaks on a 2021 Chevrolet Blazer, plotted where owners report it happening.
Also reported (mileage varies): Steering (15)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint — a rough guide, not a schedule.
Electrical system
31%37 complaints · typically near 22k mi · 30 in the last 2 years
“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…”
Engine
30%36 complaints · typically near 35k mi · 28 in the last 2 years
“The thermometer and thermometer sensor are glitching . The engine temp needle will not rise at all, the engine fan will run the whole time driving and then when it is …”
Brakes
15%18 complaints · typically near 19k mi · 10 in the last 2 years
“Brake booster failed after 50k miles needing repair. Brake became very still, prolonging the time it takes to stop the vehicle”
Transmission & drivetrain
14%17 complaints · typically near 55k mi · 14 in the last 2 years
“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…”
Recalls (1)
Safety recall repairs are free at the brand’s franchised dealers. Before buying, run the VIN at nhtsa.gov/recalls and make the seller show the work was done.
Seat Belts · 20V811000
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.
Before you hand over money
Verify the recall work was done
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150–$250 independent inspection of this exact 2021 Chevrolet BLAZER beats every score on the internet, including ours.
What to ask forNot set on the 2021? See how every Blazer model year scores →
Cross-shopping? Compare the 2021 Chevrolet Blazer against another car →
What owners say
Real owners of this exact model-year, shown separately from the NHTSA score — if they disagree, that’s worth knowing.