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GMC Yukon, Yukon Denali, XL Electrical Problems
The DVD Navigation/radio resets, the DVD Entertainment system in the back resets, the speakers sound like they "pop" as if the audio stream is interrupted, and all lights inside do a quick on/off reset.
Even the engine hours reset a couple of years ago. It currently shows 1000 hours but should be over 2000 hours by now.
Since this problem is random and we haven't found a way to reproduce it, every time we take it into the GM repair center they say they can't do anything about it. Finally, when the driver side air conditioning vents started blowing hot air, we were able to take it in for that and have asked them to check the electrical system.
I'm hoping someone had this power/electrical system reset problem and knows what was done to fix it properly. The 100,000 mile warranty is about to run out and I don't want to have to pay to get a permanent problem fixed when it has been doing this since 2005!
It is currently at the GM repair show waiting the actuator replacement on our air conditioner and want to be able to tell them a possible "solution" or a way to "recreate" the electrical reset problem if anyone knows anything about it.
See also: How To Fix Many GM Truck Electrical Problems (Video, 2:39)