2003 Chevrolet Silverado 1500 electrical system problems
195 owner complaints filed with NHTSA name the electrical system on the 2003 Chevrolet Silverado 1500 — 24% of all complaints for this model year.
What owners report
“My heater started to shut off then I’d turn it off then turn it back on then it’d come back on again. That went on for a few days. Started my truck in the morning and let it warm up for a few moments when I hear truck is on fire. The fire was in the cab of the truck. It was investigated and they…”
filed Mar 9, 2024
“I was driving in normal conditions around 45 mph with the air conditioner on high. Smoke starts pouring out from underneath the dash on the passenger side and once I get stopped the blower motor resistor had caught fire. I was able to put the fire out myself no incident report was filed. It caused…”
filed Jun 24, 2021
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, 2024
Electrical System problems in other Silverado 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Silverado 1500 | 11 | 17% |
| 2025 Silverado 1500 | 23 | 27% |
| 2024 Silverado 1500 | 36 | 13% |
| 2023 Silverado 1500 | 60 | 17% |
| 2022 Silverado 1500 | 127 | 22% |
| 2021 Silverado 1500 | 106 | 14% |
| 2020 Silverado 1500 | 101 | 15% |
| 2019 Silverado 1500 | 185 | 18% |
| 2018 Silverado 1500 | 99 | 19% |
| 2017 Silverado 1500 | 123 | 17% |
| 2016 Silverado 1500 | 119 | 15% |
| 2015 Silverado 1500 | 162 | 15% |
Other reported problem areas on the 2003 Chevrolet Silverado 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.