We have classified the 1 complaints from 2007 GMC Yukon XL 1500 about VEHICLE SPEED CONTROL into the following categories.
While driving today at a speed of 55 mph in somewhat heavy traffic my service traction control and stabilitrack indicator came on as well as a message on the dash saying the same. at which time my vehicle came to slow down and i lost power. i pulled over and and shut the car down and upon restart noticed that not only did white smoke come from my exhaust but the car had a rough idle the same indicators were still on and the engine light had now come on as well and was flashing. i was able to make it home with a rough limp however when i came to a stop felt as though the car was hesitant to keep running or take off. when applying gas there was a thump from the rear wheels like the transmission was not sure how to engage.
Tl*the contact owns a 2007 gmc yukon xl 1500. while driving 55-60 mph, the cruise control feature would only work during mid-level road elevations. the vehicle would accelerate on its own. the failure almost caused two near crashes. the dealer and manufacturer stated that nothing could be done and it was not a safety defect or concern. the failure mileage was 3,500 and current mileage was 15,000. updated 02-19-2008 *bf updated 02/19/08 *tr