2020 Chevrolet Blazer power train problems
71 owner complaints filed with NHTSA name the power train on the 2020 Chevrolet Blazer — 34% of all complaints for this model year.
What owners report
“Last year I was heading to heading to [XXX] in XXX when I pushed on the brakes on my 2020 Chevy blazer my brakes were working but the steering wheel was shaking weird like I was hard on the brakes but I was tapping them slowly earlier this year right before I had transmission flush at fox Chevy in…”
filed Jul 12, 2026
“I am submitting this complaint regarding the transmission in my 2020 Chevrolet Blazer. My vehicle has fewer than 100,000 miles and has experienced significant transmission failure symptoms, including hard shifting, jerking during acceleration, RPM fluctuations, slipping, loss of normal power, and…”
filed Jun 17, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Start/stop accumulator endcap may have missing boltsCampaign 20V668000 · Oct 29, 2020
Power Train problems in other Blazer years
| Year | Reports | Share |
|---|---|---|
| 2024 Blazer | 6 | 14% |
| 2023 Blazer | 10 | 25% |
| 2022 Blazer | 10 | 23% |
| 2021 Blazer | 18 | 14% |
| 2019 Blazer | 62 | 34% |
| 2004 Blazer | 4 | 8% |
| 2003 Blazer | 12 | 16% |
| 2002 Blazer | 33 | 13% |
| 2001 Blazer | 31 | 10% |
| 2000 Blazer | 84 | 14% |
| 1999 Blazer | 54 | 12% |
| 1998 Blazer | 74 | 10% |
Other reported problem areas on the 2020 Chevrolet Blazer
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.