2021 Chevrolet Blazer
This year had at least 30% fewer complaints than this model's typical year.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 4 |
| 1984 | 9 |
| 1985 | 29 |
| 1986 | 19 |
| 1987 | 30 |
| 1988 | 41 |
| 1989 | 40 |
| 1990 | 33 |
| 1991 | 222 |
| 1992 | 280 |
| 1993 | 517 |
| 1994 | 628 |
| 1995 | 1225 |
| 1996 | 1153 |
| 1997 | 768 |
| 1998 | 716 |
| 1999 | 436 |
| 2000 | 589 |
| 2001 | 326 |
| 2002 | 246 |
| 2003 | 77 |
| 2004 | 50 |
| 2005 | 15 |
| 2006 | 19 |
| 2007 | 9 |
| 2008 | 5 |
| 2019 | 185 |
| 2020 | 215 |
| 2021 | 129 |
| 2022 | 49 |
| 2023 | 42 |
| 2024 | 45 |
| 2025 | 30 |
| 2026 | 1 |
KNOWN PROBLEM AREAS
Percentages can add to more than 100% -- a complaint can name more than one system.
30% of complaints: engine — 39 distinct reports on file.
FIREShow complaint excerpts
My car caught on fire for no apparent reason. Front of car totally destroyed.
NHTSA ODI report, 20230119
Also filed under STRUCTURE and UNKNOWN OR OTHER
While idling in my driveway, the engine started to shake and the check engine light came on.
NHTSA ODI report, 20260821
29% of complaints: electrical system — 38 distinct reports on file, most commonly citing speedometer/odometer and cybersecurity.
14% of complaints: service brakes — 18 distinct reports on file.
Show complaint excerpts
The breaks make a squealing noise all the time which is concerning. I was told by Beaver Chevrolet that this is normal as the breaks were changed in newer car models. They have made a squealing noise ever since I bought the car brand new.
NHTSA ODI report, 20230912
14% of complaints: power train — 18 distinct reports on file.
Show complaint excerpts
The contact owns a 2021 Chevrolet Blazer. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed, and the transmission was slipping gears before the vehicle lost motive power.
NHTSA ODI report, 20260721
13% of complaints: fuel/propulsion system — 17 distinct reports on file.
CRASHShow complaint excerpts
Car will not crank, stalled while cranked, throws code P023F
NHTSA ODI report, 20260823
fuel pump control module failed at 26000. recall number N252516900. This is a recall that other 2021 blazers have ben part of. Over 300000 recalls so far. GM says my car isn't. Ridiculous. They dont want to acknowledge their fault.
NHTSA ODI report, 20260709
XXX the car had gas, turned over, but would not start. I had it towed to a repair center who towed, did diagnostics and came up with the codes for a bad fuel pump control module. It was replaced and the car starts. There was no warning.
NHTSA ODI report, 20260709
SAFETY TIMELINE
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...
Remedy: GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began January 29, 2021.
Campaign 20V811000 — check if this car was fixed
BUY-SMART CHECKLIST
2021 Chevrolet Blazer — pre-purchase inspection
- Test/inspect for engine issues (39 reports on file for this year).
- Test/inspect for electrical system issues (38 reports on file for this year).
- Test/inspect for service brakes issues (18 reports on file for this year).
- Verify recall 20V811000 (seat belts) has been completed.
OTHER YEARS OF THIS MODEL
BEST YEARS
WORST YEARS
FAQ
Is the 2021 Chevrolet Blazer reliable?
Based on NHTSA complaint volume compared to this model's typical year, the 2021 Chevrolet Blazer is rated "better than typical".
What are the most common problems with the 2021 Chevrolet Blazer?
The most-reported component is engine, accounting for 30% of complaints on file.
How many recalls does the 2021 Chevrolet Blazer have?
1 recall on file for this model year.
Data updated 2026-09-16 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.