One problem related to turn signal switch has been reported for the 2002 GMC Sierra. The most recently reported issues are listed below.
: the contact stated the headlights turned off momentarily when the steering wheel was tilted. The headlights came on by themselves without prior indication. The contact detected the odor of something burning. The vehicle was taken to an independent repair shop, which discovered the multi function turn signal switch shorted out. Although there was no fire the connecting wires and terminals were black and melted. The turn signal switch was replaced.
| Turn Signal Switch problems | |
| Fog Lights problems |