LIKE2BUILD wrote:
It's the heated seat controller in the door panel just above the window controls. I had very similar erratic behavior in my wife's 2003 Yukon XL. The problem is the plastic joints aren't fully sealed and moisture gets past the seal on the window and drips onto the unit. Over time water gets in and corrodes the solder joints causing odd short circuits.
Get a new seat controller (About $200) and before you install it, use 100% and cover all the joints in the body of the module.
KJ
We were wondering about the switch... the odd thing is that it seems to work if no one is sitting in the seat! We just discovered that yesterday. Of course...that could be just one more weird thing.
I'll run this by our mechanic though...thank you! cts