How common are engine problems on the 2021 Chevrolet Blazer?

NHTSA lists 44 engine complaints for the 2021 Blazer, which is 33% of the 133 total complaints filed for that model year.

Is there a recall for the 2021 Chevrolet Blazer engine?

No related recall is listed in the NHTSA data provided for this problem area.

At what mileage do 2021 Blazer engine problems usually appear?

The median mileage at failure reported to NHTSA for this problem area is 46,860 miles.

What specific engine issues do owners report on the 2021 Blazer?

Owners report stalling at low speed, radiator cracks and coolant leaks, overheating risk, purge pump failures, and cooling fans that keep running after shutoff.

Were there any crashes or fires linked to these engine complaints?

NHTSA data shows 0 crashes and 1 fire among the 44 engine complaints for the 2021 Blazer, with 0 injuries reported.

2021 Chevrolet Blazer Engine Problems

NHTSA lists 44 engine complaints for the 2021 Chevrolet Blazer, 33% of all 133 complaints filed for the year. Owners report stalling, radiator leaks, and overheating, with a median failure mileage of 46,860 miles. No related recall is on file.

Engine complaints: 44; 33% of 133
Crashes reported: 0
Fires reported: 1
Injuries reported: 0
Median mileage: 46,860 mi
Related recalls: 0

Typical engine symptoms owners report

Vehicle stalls or loses power at low speed, including during turns, sometimes requiring repeated throttle input to move again.
Radiator develops a crack or leak that lets coolant escape and can lead to engine overheating.
Coolant leaks accompany abnormal engine noise and intermittent A/C failure while driving.
Check engine light comes on along with a failed purge pump, disabling some electrical features.
Cooling fan continues running for an extended time after the engine is shut off, sometimes paired with a reduced steering assist warning.

When 2021 Chevrolet Blazer engine complaints were filed

First complaint Feb 19, 2022, latest Sep 17, 2026.

44 complaints filed with NHTSA from Feb 2022 to Sep 2026; peak Apr 2026 (4).

Engine recalls for the 2021 Chevrolet Blazer

No safety recalls on record for this model year.

Engine complaints by Blazer model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

20052 (13%)
20062 (11%)
20070 (0%)
20081 (20%)
201947 (25%)
202074 (34%)
202144 (33%)
202215 (30%)
202314 (33%)
202410 (21%)
20254 (13%)

Frequently asked questions

How common are engine problems on the 2021 Chevrolet Blazer?: NHTSA lists 44 engine complaints for the 2021 Blazer, which is 33% of the 133 total complaints filed for that model year.
Is there a recall for the 2021 Chevrolet Blazer engine?: No related recall is listed in the NHTSA data provided for this problem area.
At what mileage do 2021 Blazer engine problems usually appear?: The median mileage at failure reported to NHTSA for this problem area is 46,860 miles.
What specific engine issues do owners report on the 2021 Blazer?: Owners report stalling at low speed, radiator cracks and coolant leaks, overheating risk, purge pump failures, and cooling fans that keep running after shutoff.
Were there any crashes or fires linked to these engine complaints?: NHTSA data shows 0 crashes and 1 fire among the 44 engine complaints for the 2021 Blazer, with 0 injuries reported.