Two problems related to wiring have been reported for the 2005 Chevrolet Suburban. The most recently reported issues are listed below.
The wiring for the lighters, power ports and computer link melted. It's all part of the under-dash wiring harness.
I noticed corroded and what I would call charred or burnt wiring on the wiring harness for the rear lift gate of my Suburban. I noticed it when I opened the lift gate to gain access to the rear of the Suburban. It appears that the rubber grommet material protecting the wiring harness, was burnt or melted away. The rubber hose that supplies water to the rear window washer/wiper had a hole in it, and may have been leaking windshield washer fluid onto the wires for a time. The wires were bare in some spots, some of the wire insulation looked melted/burnt away, and they looked corroded/with a green color to them. The connector that connects the harness, to the rest of the electrical system, looked like it has some black/ possibly burnt residue on it. I can take a guess at best, that because of the hole in the rubber hose, water may have been leaking onto the electrical wiring/connections when I used this feature to clear dirt from the lift gate window, but I don't really know for sure if that is how the damage to the wiring harness has occured! thanks!.