One problem related to headlights has been reported for the 2008 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 GMC Sierra 1500 based on all problems reported for the 2008 Sierra 1500.
Headlights dim when the brakes are applied, when the truck shifts from 1st to second gear and when the blinkers are used at interstate speeds. Contacted gm and have been told this is normal in all vehicles. Also have had 3 door lock actuators and 1 window motor replaced. Had to have the front steering/rack and pinion replaced. Currently having problem with front door not opening.
| Headlights problems | |
| Tail Light Switch problems |