One problem related to defogger 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.
Purchased this vehicle in March 09. It has been in the shop 4 different times for a/c. Started about 4 months after purchase. Driver side a/c blows hot air, but passenger side and rear work fine. Have also experienced the brakes slipping off and on. Push the brake pedal and the pedal will drop down a little lower while pressure being applied and vehicle will slide to a halt. Happened about 6 times since ownership. Chrome plating on interior door handles is peeling, causing cuts/lacerations to hands. Recent problem of engine running low of oil in between oil changes. Now low about 2 quarts. Running oil consumption tests now.