2003 GMC Sonoma Electrical system Problems
- Complaints
- 1about this part
- Share
- 3%of 39 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the electrical system of the 2003 GMC Sonoma, 3% of the 39 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“While traveling on the highway engine check light appeared on the dashboard. The vehicle was towed to the dealership on three occasions and was told the problem was possibly the wiring harness”
NHTSA complaint #10026813, filed 2003-08Related service bulletins
- 11009156Oct 25, 2024This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
- 11006621Aug 26, 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…
- 11002312Jun 6, 2024This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 10252735Mar 28, 2024This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
- 10244214Sep 21, 2023This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- 10225615Oct 19, 2022This service bulletin provides information on Module Harvesting.
- 10198890May 25, 2021This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or…
- 10176649May 20, 2020This informational bulletin provides information for the IPC odometer programming method quick reference guide.
- 10171318Jan 31, 2020This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester…
- 10167434Oct 10, 2019This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 1 | 3% |
| 2002 | 8 | 14% |
| 2001 | 5 | 6% |
| 1999 | 4 | 7% |
| 1998 | 9 | 6% |
| 1997 | 9 | 8% |
| 1996 | 8 | 5% |
| 1995 | 9 | 4% |
| 1994 | 8 | 4% |
| 1993 | 5 | 9% |
| 1992 | 1 | 4% |
| 1991 | 3 | 10% |
Other parts of the 2003 GMC Sonoma
7 complaintsBody and structure
6 complaintsLatches, locks and linkages
5 complaintsTransmission and drivetrain
5 complaintsEquipment
4 complaintsFuel system
4 complaintsSeats
3 complaintsTires
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsAir bags
2 complaintsSuspension
2 complaintsVehicle speed control
2 complaints
← All problems reported for the 2003 GMC Sonoma
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology