2003 GMC Sierra 1500 electrical system problems
43 owner complaints filed with NHTSA name the electrical system on the 2003 GMC Sierra 1500 — 24% of all complaints for this model year.
What owners report
“An accident has not occurred yet, but it something I'm concerned deeply about. Awhile back there was a recall on the instrument cluster of the gmc Sierra 1500 (possibly othets on the list, im sure). I did wind up having the cluster replaced, there didn't seem to be any issues at the time. Now...the…”
filed Jun 11, 2023
“Tl* the contact owns a 2003 gmc sierra 1500. The contact stated that while operating the vehicle, the instrument panel would not function properly. The contact indicated that the fuel gauge and speedometer were both inoperable. The vehicle was taken to the dealer who diagnosed that the instrument…”
filed Nov 25, 2014
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 Sierra 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Sierra 1500 | 8 | 12% |
| 2025 Sierra 1500 | 21 | 23% |
| 2024 Sierra 1500 | 39 | 12% |
| 2023 Sierra 1500 | 55 | 13% |
| 2022 Sierra 1500 | 79 | 15% |
| 2021 Sierra 1500 | 71 | 13% |
| 2020 Sierra 1500 | 77 | 17% |
| 2019 Sierra 1500 | 94 | 15% |
| 2018 Sierra 1500 | 42 | 14% |
| 2017 Sierra 1500 | 54 | 15% |
| 2016 Sierra 1500 | 54 | 16% |
| 2015 Sierra 1500 | 93 | 13% |
Other reported problem areas on the 2003 GMC Sierra 1500
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.