2020 Chevrolet Colorado power train problems
33 owner complaints filed with NHTSA name the power train on the 2020 Chevrolet Colorado — 39% of all complaints for this model year.
What owners report
“My 2020 Colorado at 14k miles, the dealer did the transmission oil flush and it helped till the warranty ran out. Now I have the same problem again at 32k miles. I bought the truck because GM said the problem with 8L/45 trans was fixed in 2019. To my knowledge there has been no update to the…”
filed Sep 14, 2026
“My truck has been shuddering and when put into gear it sounds like the bottom is falling out of it. Now when I am driving my truck is shuddering very hard and skipping gears. I have been having this issue since I bought the truck with only 47k miles and I have only put 40k miles on this truck in…”
filed Jan 26, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Colorado years
| Year | Reports | Share |
|---|---|---|
| 2025 Colorado | 3 | 11% |
| 2024 Colorado | 13 | 11% |
| 2023 Colorado | 9 | 7% |
| 2022 Colorado | 3 | 6% |
| 2021 Colorado | 11 | 15% |
| 2019 Colorado | 65 | 44% |
| 2018 Colorado | 78 | 43% |
| 2017 Colorado | 107 | 50% |
| 2016 Colorado | 97 | 14% |
| 2015 Colorado | 45 | 9% |
| 2012 Colorado | 2 | 5% |
| 2011 Colorado | 2 | 5% |
Other reported problem areas on the 2020 Chevrolet Colorado
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.