Two problems related to dash wiring have been reported for the 2001 GMC Jimmy. The most recently reported issues are listed below.
The dash lights were on as if car was not running but car was running. All gauges would not work. This was intermittent. The key could not be removed from the ignition during one of these instances. Dealer replaced ignition switch.
My vehicle has two problems that I am aware of. There's heat coming from the floor heater while the heater is off, and it burns my feet. The other problem is that when I activate my left/right blinker my day lights go out, and sometimes when I'm driving my day lights are not activated. I have to play with my blinkers to make then come on. My car is still under warranty, but the dealership where I purchased this vehicle refuses to fix either problem. They told me that my car is designed this way.