Table 1 shows six common electrical system related problems of the 2003 GMC Sierra. The number one most common problem is related to the instrument panel (15 problems). The second most common problem is related to the electrical system (seven problems).
| Problem Category | Number of Problems |
|---|---|
| Instrument Panel problems | |
| Electrical System problems | |
| Wiring problems | |
| Instrument Panel Failure problems | |
| Starter problems | |
| Alternator/generator/regulator problems |
2003 GMC Sierra. Consumer writes in regards to a speedometer failure. The consumer stated she was driving 55 mph. However, the speedometer showed 100 mph. It went on for a couple of days and then went back to normal. The next day, the speedometer was acting erratic again. Read details...
Vehicle goes into reduced engine power mode at interstate speeds without warning and increases risk of being rear ended, does not have enough power to safely get the vehicle off the road when in the left lane with other cars behind. Read details...
Day time running light burned out. When I replaced it the bottom of the bulb was burned and the plastic wiring socket was partially melted and brittle around the bulb base. I changed the bulb and the light still works. Read details...