One problem related to driveshaft has been reported for the 2015 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 GMC Yukon based on all problems reported for the 2015 Yukon.
Vehicle started having a vibration at cruising speeds after 100k miles. Dealership states the driveshaft is wharped and needs replacing. . Rear taillights also are going in and out intermittently. Dealer claims the leds are bad and the whole light assembly needs replacing. I have owned many vehicles and have never had issues with a bent driveshaft or defective taillights that require the whole assembly to be replaced. The light assembly is $750 quoted by dealership.