First generation (crossover revival, C1XX)
2021 Chevrolet Blazer
- 130owner complaints
- 1recalls
- 6involved a crash
- 36,000median miles at failure
Newest report Sep 2, 2026 · checked Sep 9, 2026
When each problem shows up
Each bar covers the middle half of the mileages owners reported for that problem. A quarter saw it earlier, a quarter later. The tick is the median. Most reported: engine stalls or loses power while driving, 24 complaints.
middle half of reports, median tick. Darker bars have 75 or more reports.
Behind you
Around your mileage
Ahead of you
How this compares
130 complaints is 1.4 times fewer than the median 2021 model on this site and 1.6 times fewer than the median 2021 SUV. Among the 3 Blazer model years here it ranks 3rd for complaints. Counts follow sales volume as much as reliability, so a truck that sells 700,000 a year draws more reports than a sedan that sells 200,000.
Complaints filed by year
60 complaints came in 2025, 4.3 times the year before. Owners file in waves when a problem gets press or an investigation, so a spike measures attention as much as failures.
Recalls that include the 2021 Chevrolet Blazer
Whether your car is included depends on its VIN. Check yours at nhtsa.gov/recalls.
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 and remedy
Remedy: 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.