2018 Chevrolet Colorado electrical system problems
34 owner complaints filed with NHTSA name the electrical system on the 2018 Chevrolet Colorado — 19% of all complaints for this model year.
What owners report
“The contact owns a 2018 Chevrolet Colorado. The contact stated that while the vehicle was parked, the key was difficult to remove from the ignition. The dealer was contacted and informed that the shift interlock switch failed to recognize that the transmission was shifted to park(P). The vehicle…”
filed Jul 15, 2026
“My 2018 Chevrolet Colorado diesel has had repeated diesel emissions/DPF-related failures that cause the vehicle to enter reduced-power or limp mode. This is a safety issue because the truck suddenly loses power and cannot accelerate normally. The most serious incident occurred while driving over…”
filed Jul 6, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Electrical System problems in other Colorado years
| Year | Reports | Share |
|---|---|---|
| 2025 Colorado | 7 | 26% |
| 2024 Colorado | 34 | 30% |
| 2023 Colorado | 39 | 30% |
| 2022 Colorado | 19 | 39% |
| 2021 Colorado | 11 | 16% |
| 2020 Colorado | 6 | 8% |
| 2019 Colorado | 24 | 17% |
| 2017 Colorado | 41 | 19% |
| 2016 Colorado | 113 | 16% |
| 2015 Colorado | 52 | 11% |
| 2012 Colorado | 8 | 19% |
| 2011 Colorado | 14 | 33% |
Other reported problem areas on the 2018 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.