2021 Chevrolet Blazer engine problems
The 2021 Chevrolet Blazer has 39 engine complaints filed with NHTSA — 20% of the year's total, and down from the prior model year.
39
Engine complaints
20%
Share of year
0
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“Once I turn the vehicle off, there is a loud sound coming from the engine area that sounds like a fan. Then the first incident of the fan ongoing after the vehicle was powered off, a battery light was on the internal driver dashboard and stayed on. The battery was recently replaced during 2026 so…”
Common questions
How many engine complaints does the 2021 Chevrolet Blazer have?
NHTSA has 39 complaints about the 2021 Chevrolet Blazer engine — 20% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.