One problem related to differential unit has been reported for the 2016 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 GMC Yukon based on all problems reported for the 2016 Yukon.
Excessive vibration/buffeting drone issues (at all speeds of the vehicle) have caused severe health issues and safety hazards from driving the vehicle. Within the first 8,000 miles of owning the car, the car has now been in service for 40 days as gm tries and remedy the problem, but there does not appear to be a fix. So far, diagnostic tests indicated that there was a faulty bearing in the rear differential that led to significant abnormal wear throughout the differential and the differential needed to be rebuilt. When rebuilding, they discovered that the disassembled differential had heavily scored bearings and metal shaving throughout every bearing. Ring gear and pinion had irregular wear causing a drone in the vehicle. Race surfaces wear ground and scarred bad. The rebuilt differential did not fix the issue and now after having four new tires and road balancing, the problems didn't diminish but were exacerbated. After rebuilding the differential again, gm has now determined that the rear axle may need to be replaced and engineers are looking into the problem further. The steering wheel shakes and the car has a terrible vibration that worsens every time gm attempts to service the vehicle. This seems to be a well-documented problem that gm has avoided fixing. We advise other consumers to be aware of the serious safety problems related to the poor manufacturing of the vehicle and inability of gm to remedy the problem.