While driving on the expressway at about 11pm, going 70 miles per hour, my headlight just went out. I turned the control switch on and off to see if they would come back on but they didn't. I pulled onto the side of the road and check to see if my other lights were working (blinkers, flood lights, brights) and they were. My headlights however weren't. I tried turning the truck on and off to see if they would come back on but they didn't. after sitting there with the car off for about 10 minutes, I started it back up and they came on. I had to turn around and go back home in fear that I couldn't finish my trip because I didn't know if my lights would go out again. Since this first incident, my light go out on a daily basis and at random. They have gone out while my truck has been in park as well as while I've been driving. I have taken it into the shop and after them having my truck for 9 hours, they told me they worked the whole time while they had it (go figure). I took my truck back in this morning because it was happening again and I was able to show to them that my switch was registering my headlights as being on when they weren't. I have contacted GMC to file a complaint and was told at this time there wasn't much they can do and that I just need to get it repaired. Hard to do when no one will acknowledge the problem. I am beyond frustrated because I am limited when I can drive my vehicle due to this major issue that can happen at anytime without any warnings.

- Flint, MI, USA

Safety issue: While driving home last night both low beam headlights went off. Pulled over and stopped the vehicle as it was dark. Turned head light switch on and off, but could not get lights to work. Bright lights worked and so did driving lights, therefore I drove on home. I checked the GMC web site and found no callbacks. However under problems with Envoy vehicles from General Motors there are reports that this same electrical problem is being considered for a callback.

- Taampa, FL, USA

The contact owns a 2006 GMC Envoy. The contact stated while driving 70 mph, the headlights failed. Th contact took the vehicle to the dealer who advised that there were no recalls for the vehicle. The vehicle was not repaired. The manufacturer was notified who advised that she take the vehicle to the dealer for a diagnostic test and offered no further assistance. The VIN was unavailable. The failure mileage was 36,000 and the current mileage was 94,000.

- Clarkston, GA, USA

Driving on freeway at night and both headlights went out at the same time while traveling at 55mph. Was told my 2006 Envoy had a history of electrical problems.

- Lexington, KY, USA

The contact owns a 2006 GMC Envoy. She experienced failures with the ABS system. The fuel gage registered empty when the gas tank was full and also the seats and windows electrical switch. While driving at night on August 11,2009 all lights failed. She will take the vehicle to the dealer. The failure mileage was unknown and the current mileage was 41,590.

- New Egypt, NJ, USA