2003 GMC Sierra 2500 electrical system problems
Owners reported electrical system problems in 36 complaints for the 2003 GMC Sierra 2500, 19% of the complaints on file. It is the 2nd most reported problem area for this model year.
At a glance
- Complaints
- 36 19% of this year's complaints
- Typical mileage
- 92,000 miles 33 complaints with mileage
- Crashes and fires
- 0 and 2
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
When electrical system problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 3 |
| 20k to 40k miles | 1 |
| 40k to 60k miles | 7 |
| 60k to 80k miles | 3 |
| 80k to 100k miles | 3 |
| 100k to 120k miles | 9 |
| 120k to 140k miles | 3 |
| 140k to 160k miles | 1 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 1 |
| 200k+ miles | 2 |
What the data shows
Of the 33 electrical system complaints that report mileage, the median is about 92,000 miles, and 33% were reported before 60,000 miles.
These complaints mention 2 fires.
What owners wrote
The vehicle has had failure of the air conditioner and heating. Resulted in fired in the dash board wiring twice. Had been in the shop for heating and air conditioner eight times.
2003 GMC sierra 2500 hd ext. Cab, 8-ft. Box. In cooler weather, fall, winter, spring, the gauges malfunction. That is, the speedo and tach read wildly high or don't activate at all, and the other gauges all are non functional. This is intermittent and is apparent when starting on cold mornings. So far, symptoms have disappeared in warmer temps. It has occurred every year. There is an advisory, but GMC won't act on my word, must see it.
Other problems reported for the 2003 GMC Sierra 2500
- Brakes 75 complaints
- Fuel system 15 complaints