One problem related to transmission gear slipping has been reported for the 2002 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 GMC Yukon based on all problems reported for the 2002 Yukon.
During acceleration, transmission lurch and slip occurred causing engine to over-rev resulting in the loss of third gear, forth gear, and reverse. Cause was a mechanical failure inside transmission @ only 46k miles. Transmission re-build was necessary.