2004 Chevrolet Colorado electrical system problems
88 owner complaints filed with NHTSA name the electrical system on the 2004 Chevrolet Colorado — 24% of all complaints for this model year.
What owners report
“One day, after I turned my truck off, I noticed that my taillights and overhead cargo light remained on. Key was out, truck was off, but the lights stayed on. So for the time being, I disconnected the battery. I brought it to a mechanic, who ran the codes that came back that the rear driver turn…”
filed Aug 29, 2023
“Ignition safety module known as pass lock security. This causes my vehicle not to start and give a code and a light on the dash for the Pass Lock security. The vehicle was fine then I went into a store came out and put the key in the ignition, the lights on the dash came on but it would not crank…”
filed Dec 11, 2022
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
23-NA-001 · Service Bulletin/Repair Instructions · issued Mar 28, 2025This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8…
PIP4723J · Service Bulletin/Repair Instructions · issued Oct 25, 2024Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to…
General Communication · Service Campaign · issued Aug 26, 2024
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% |
| 2018 Colorado | 34 | 19% |
| 2017 Colorado | 41 | 19% |
| 2016 Colorado | 113 | 16% |
| 2015 Colorado | 52 | 11% |
| 2012 Colorado | 8 | 19% |
Other reported problem areas on the 2004 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.