2021 Chevrolet Blazer: owner complaints and recalls
Analysis of 124 owner complaints filed with NHTSA and 1 recall campaigns. Updated 2026-07-25.
124
Complaints
1
Recalls
5
Crash reports
1
Fire reports
6
Injuries
59.7
Severity index
Severity index 59.7 - Medium. This weights crashes, fires, injuries and fatalities per 100 complaints; see methodology.
Among the 90 2021 vehicles we track with at least 40 complaints on file, the 2021 Chevrolet Blazer ranks 36 of 90 by severity, where 1 is the worst. Its severity is higher than 60% of its model-year peers. See the full 2021 ranking.
What actually fails
| Component | Complaints | Share of complaints citing it |
|---|---|---|
| ELECTRICAL SYSTEM | 37 | 29.8% |
| ENGINE | 36 | 29.0% |
| UNKNOWN OR OTHER | 20 | 16.1% |
| POWER TRAIN | 18 | 14.5% |
| SERVICE BRAKES | 18 | 14.5% |
| FUEL/PROPULSION SYSTEM | 16 | 12.9% |
| STEERING | 15 | 12.1% |
| FORWARD COLLISION AVOIDANCE | 7 | 5.6% |
The single most-reported system is ELECTRICAL SYSTEM, cited in 37 of 124 complaints (29.8%). One complaint can name several systems, so these shares overlap and do not total 100%.
Complaints filed per year
| Year | Complaints |
|---|---|
| 2021 | 11 |
| 2022 | 4 |
| 2023 | 12 |
| 2024 | 14 |
| 2025 | 60 |
| 2026 (year to date) | 23 |
Complaint volume is rising - the last three years carry 5.7x the filings of the three before them, which usually signals a wear-related defect surfacing with age.
Recall campaigns
| Campaign | Reported | Component | Summary |
|---|---|---|---|
| 20V811000 | 23/12/2020 | SEAT BELTS | 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 |
Source. US National Highway Traffic Safety Administration public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-07-25. Complaints are unverified consumer reports; volume is influenced by how many units were sold and how long the vehicle has been on the road. Not affiliated with NHTSA or any manufacturer.