The sunroof may stop working for various different reasons. Our technicians tell us it is often better to replace the complete sunroof assembly than to try and repair the old one.Google+
Car Problem Reports
GMC Yukon Sunroof May Fail
GMC Yukon Problem
Average Mileage: 73,333 mi (36,000 mi - 114,000 mi)
Visitor, 2005 GMC Yukon, 70,000 mi
Abnormal sound when opening and closing the sunroof and it seemed to have a tracking issue. Didn't want it to get stuck in the open position so just haven't used it for several years. Had an estimate from a local dealer to fix it and didn't think $1200 was reasonable so haven't had it fixed.
Visitor, 2005 GMC Yukon
Parts related to the sunroof appear to have come loose and rattling around. Happened in 2011. Cause unknown.
Visitor, 2002 GMC Yukon, 114,000 mi
Sunroof is stuck wide open and wont shut. Can't find an easy fix or a mechanic that wants to fix it.
Visitor, 2006 GMC Yukon, 36,000 mi
plastic arm broke