2020 Chevrolet Blazer vs 2021 Chevrolet Blazer
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 7, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2020 Chevrolet Blazer | 2021 Chevrolet Blazer |
|---|---|---|
| NHTSA complaints | 211 | 125 |
| Recall campaigns | 3 | 1 |
| Service bulletins (TSBs) | 853 | 811 |
| Investigations | 0 | 0 |
| Crash reports | 5 | 6 |
| Fire reports | 0 | 1 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 21–24 | 21–25 |
| Median reported incident mileage | 50,000 mi | 36,232 mi |
Reported problems side by side
| Component | Chevrolet Blazer | Chevrolet Blazer |
|---|---|---|
| Electrical System | 71 | 37 |
| Engine | 68 | 36 |
| Power Train | 71 | 18 |
| Steering | 40 | 15 |
| Service Brakes | 10 | 18 |
| Fuel/propulsion System | 4 | 16 |
| Forward Collision Avoidance | 3 | 7 |
| Lane Departure | 5 | 3 |
Symptoms owners describe
| Check engine light | 32 | 15 |
| Overheating | 13 | 7 |
| Stalling | 7 | 10 |
| Loss of power | 5 | 0 |
| Hesitation / surging | 5 | 0 |
| Electrical failures | 5 | 0 |
2020 Chevrolet Blazer
2021 Chevrolet Blazer
Compare all Chevrolet Blazer vs Chevrolet Blazer years →
Method. Complaints are unique NHTSA reports. A vehicle that sold more units will naturally accumulate more complaints — use shares and read the underlying reports before drawing conclusions.