Actuators stopped functioning properly to control A/C and heat in vehicle when turned on. If A/C is turned on, it may run for awhile then turn to heating cycle on one side of the vehicle or the other. This happens whether the vehicle is in motion or not. If heat is called for in winter, I.e. to defrost windows, the heat may or may not run or if running may turn to A/C. many times in winter the heat turns to A/C and there is no heat entering the vehicle. Noted there were numerous GMC vehicles with the same issue as late as 2015 when looking on the internet.

- Roanoke, VA, USA

The contact owns a 2004 GMC Yukon. The contact stated that the liftgate window fractured. The vehicle was taken to a dealer. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 60,000.

- Lauderhill, FL, USA

The contact owns a 2004 GMC Yukon XL. The contact stated that the rear lift-gate window detached after the lift-gate door was closed. The vehicle was not taken to the dealer. The manufacturer was contacted. The vehicle was not repaired. The failure and current mileages were 102,000.

- Terell, TX, USA