The 2004 GMC Yukon has been the subject of four recalls and more than 325 technical service bulletins (TSB) published by the manufacturer. None of the recalls deals with sunroof problems some Yukon owners are experiencing, but several of the TSBs do.
A TSB is published on the 2004 GMC Yukon concerning the button that controls the sunroof. The wiring on the sunroof button control is reported by Edmunds.com to work intermittently. The sunroof opens only periodically when the control button is pressed. The TSB reports the main wiring harness controlling all the electrical equipment in the Yukon may not be properly wired into the controls under the console of the GMC. A dealership should inspect and repair or replace the wiring.
The 2004 GMC Yukon may have a problem with the sunroof jamming during closing. A TSB published by the manufacturer reports the sunroof may come off its tracks. The wheels or tracking devices on the sunroof don't close at equal speeds, causing the sunroof to jam partly open. The timing on the sunroof needs to be adjusted to prevent this problem. The Yukon should be taken to a dealership for this, as the sunroof can be damaged to the point that it may have to be replaced.
A leak may develop in the 2004 GMC Yukon sunroof because debris builds up in its drain lines. The drain lines normally allow water to run harmlessly onto the ground or pavement. But leaves, dirt and other debris may clog the lines, causing water to leak into the cab. The edges of the sunroof should be cleaned periodically to ensure these drain lines do not clog.
