Engine complaints and recalls from NHTSA
Summary
The 2021 Chevrolet Blazer has 14 NHTSA engine complaints and 0 engine-related recalls.
14
Complaints
0
Recalls
0
Injuries Reported
Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 8, 2026
| Date ↓ | Component | Summary |
|---|---|---|
| Feb 7, 2026 | ENGINE | The 2021 GMC Blazer (and related Chevy Blazer models) is experiencing recurring radiator failures, o... |
| Oct 28, 2025 | ENGINE | Radiator failure caused power steering assist to not function properly and insufficient vehicle heat... |
| Sep 19, 2025 | ENGINE | Was informed at today's oil change that my radiator is leaking and it's something that they are seei... |
| Jul 24, 2025 | ENGINE | Coolant smell when parked with engine running. Radiator was replaced under warranty at 16,000 miles ... |
| Jun 1, 2025 | ENGINE | Radiator leak, leaking antifreeze |
| Apr 21, 2025 | ENGINE | Took 2021 Chevy Blazer to a Chevy dealer for small leak. 25000 miles and dealer said I have a leak i... |
| Dec 31, 2024 | ENGINE AND ENGINE COOLING | The contact owns a 2021 Chevrolet Blazer. The contact stated that upon turning off the vehicle, the ... |
| Dec 4, 2024 | ENGINE,FUEL/PROPULSION SYSTEM | On [XXX], I was driving my Blazer up to our local Museum to grab some information. The Museum is abo... |
| Oct 17, 2024 | ENGINE | The Radiator has a crack in the upper left front of the core causing the fluid to leak and lose pres... |
| Jun 15, 2024 | ENGINE | Leaking coolant from bad radiator “just out of warranty”. Roughly $2000 repair estimate |
| Apr 25, 2024 | ENGINE | I have a 2021 Chevy Blazer which has had to have two radiators replaced with less than 50,000 miles ... |
| Oct 1, 2023 | ENGINE | The contact owns a 2021 Chevrolet Blazer. The contact stated that the check engine warning light was... |
| Feb 19, 2022 | ENGINE,FUEL/PROPULSION SYSTEM | I had just purchased my vehicle around December 9 2021. On around Decmeber 16, 2021 around 8 am I wa... |
| Jan 1, 2021 | ENGINE AND ENGINE COOLING,POWER TRAIN | The contact owns a 2021 Chevrolet Blazer. The contact stated that oil was leaking from the vehicle. ... |