One problem related to sun roof has been reported for the 2007 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 GMC Yukon based on all problems reported for the 2007 Yukon.
Traveling approximately 60 mph on a partly sunny day, approximately 27 degrees outside with my heater on, my sunroof spontaneously shattered with a sound similar to a gunshot. At that point, the glass did not fall but was cracked into thousands of pieces. Later as I drove the glass began to fall apart. I was not following any vehicle and was not driving under a bridge or around any trees so there was nothing that could have struck my sunroof. The roadway was smooth and my sunroof has never sustained any damage in the past.