Five problems related to electrical system have been reported for the 2006 GMC Sierra. The most recently reported issues are listed below.
Turned off engine, hvac fan still on. Will not turn off. This is the dual climate control system. Had to remove fuse so the battery will not discharge. Service bulletins were issued for this problem but did not include all vehicles, including ours.
The contact owns a 2006 GMC Sierra. The contact stated that while driving at various speeds, the seat belt warning indicator illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 10,000.
The driver's side seat heater randomly comes on. If you turn it off it comes right back on again and cycles through the various heat settings. It creates a dangerous distraction in the florida heat. I've taken it to numerous dealers, none of which can fix it. I call gm and they won't even consider it until I take it back to a dealer saying they will only get involved if I have taken it to a dealer within the last 30 days. One dealer told me that was a lie, there is no 30 day requirement. This issue is more of a distraction than texting. Looking it up online it's a common problem but gm denies it even though gm did issue a TSB to have the drivers door module reprogrammed. I had that done and it made the problem worse. A straight up safety issue. I have the same problem with a 2005 suburban and filed a complaint on that one too. Nothing came of that either so it appears this site and agency is nothing more than a sounding board. Gm and NHTSA cannot afford to distance themselves from this.
The contact owns a 2006 GMC Sierra. The contact stated that the air conditioner would shut off independetly and there was an electrical burning odor near the instrument panel and throughout the vehicle. When the air conditioner was deactivated, the burning smell ceased. The failure occurred on twelve different occasions. The vehicle was not diagnosed or repaired. The manufacturer was notified. The failure mileage was 16,000. Jcc.
A/c & heater fan control and passenger air bag resister/connector found under the passenger dash, possible fire and safety issues if vehicle is parked in a garage.
| Electrical System problems | |
| Ignition Module problems | |
| Ignition Switch problems |