Brake Light Switch Problems of GMC Yukon

This is the second complaint that I have made to NHTSA. The first time, the vehicle was spontaneously turning off and shutting down during backing in and turns causing a safety issue. This resulted in a recall, and a "software update" that was done twice to correct the issue. Right and back passenger lights began to blink on and off and water gets into the brake light. The dealer told me this was m issue. This time the 4wd service light came and the car appeared to be stuck in "4wd low" making it "drag" at a reduced speed when driving. Also, the "service trailer brake" light came on repeatedly. I have never used the trailer brake. I took it into an authorized dealer, sellers GMC in farmington hills, mi. They told me I needed a new "module", so I paid to have that done. Within one day the same service lights came on again. "service 4 wd" and "service trailer brake. " I immediately took the vehicle back and am now being told it needs another software update and a new trailer brake transfer switch. Quite frankly, I believe that this model has significant, unaddressed computer software issues and the dealer does not know who to fix it. The car is unsafe because it spontaneously stops working appropriately during driving. The concerns have been various and always seem to affect steering, when turning or backing in. I am being charged for various control panels and modules. I am requesting that this concern gets addressed before there is a serious injury. I would like my vehicle fixed and returned to a safe condition. I was never told upon purchase, that this model would require so many "software" updates to remain safe. This should not be a burden placed on a consumer for a vehicle to operate safely. This is dangerous.

See all problems of the 2015 GMC Yukon 🔎.

Passenger side led brake light does not work when braking. Assembly has been removed and switched with driver side to verify that it is not the wiring harness or any electrical between the brakes and the led brake lights.