general problems of the 2010 GMC Yukon

The contact owns a 2010 GMC Yukon. The contact stated that while his girlfriend was driving approximately 70 mph, the vehicle was bouncing and swaying left to right. The air ride system was inoperable. The steering wheel was unstable and hard to control. The suspension warning light was illuminated. The vehicle was taken to the dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 130,000.

When I was driving I imake a u turn and my steering wheel stop working. . .

Yo hiba manejando como a 25 millas en la ciudad y cuando y cuando fui hacer un u turn el steering wheel dejo DE trabajar. Se puso duro y solo se mueve si lo manejo pero no puedo parquiarme porque esta muy duro el steering wheel . Lo lleve a un electronico y me dijeron que la computadora no le da el code. Y el mechanico solo me dice que ES mejor cambiar el rock pinion electric pero no encuentro la piesa en ningun lado. . .

Driving 40mph in traffic and the engine turned off by itself, no power steering or brakes at this point, I was able to stop the vehicle in traffic and put my hazzards on while I tried to figure out what happened. The vehicle was acting as if it was still on and would not restart, I still had power to everything and the dashboard was displaying several error messages. Stabilitrack, traction control and engine reduced power and also the check engine light was on. Vehicle would not restart. After about 5 minutes the vehicle restarted and I was able to drive off, the check engine light stayed on for 2 days. This same exact occurence has occured again this time on 4/27. It also happened while parked on 3/1 with the engine running. I am having the vehicle serviced at a GMC dealership in carrollton texas today.