Table 1 shows six common electrical system related problems of the 2005 GMC Sierra 2500. The number one most common problem is related to the electrical system (24 problems). The second most common problem is related to the instrument panel (eleven problems).
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems | |
| Instrument Panel problems | |
| Wiring problems | |
| Dashboard Failed problems | |
| Ignition Switch problems | |
| Underhood Wiring problems |
1). Dash light stays on constantly and reads service air bag. This was checked out at an auto repair shop. If air bag doesn't respond, it could be fatal. 2). Check engine light is always on. Was checked out at an auto repair shop and repaired on 10/19/2021. 3). Read details...
Speedometer quit working while driving. Shows 75 miles an hour while stopped goes up to 120 on acceleration. No way to know actual speed. Read details...
Replaced every module in the heater system in my 05 GMC sierra several times, and so has just about everyone else I know who owns one. Now my wiring harness burned without blowing any fuses. Gm should have a recall on this, and find the problems, and fix them, before everyone who owns one goes Read details...