Two problems related to wiper have been reported for the 2018 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 GMC Yukon based on all problems reported for the 2018 Yukon.
Air conditioning condenser refrigerant leaked, preventing ac from functioning. Could lead to visibility issues due to defroster not functioning properly. Reported problem in NHTSA 10166241 (gm special coverage 17336), but vehicle had condenser shield used as 'solution' to problem. Still leaked and gm would not cover repair costs.
The car was parked, all of a sudden we heard a boom and the rear window had exploded outward and shattered, with the latch still attached to the rear tailgate. The hydraulic arms were up and extended, indicating the window had possibly tried to open, but didn't unlatch, and then shattered. Nobody was inside the vehicle or had the keys on them, so the rear tailgate was not activated in either way.