Software problems of the 2014 GMC Sierra 1500

This incident occurred 4-5 times over the last week driving between 25-40 mph. While driving, a warning or notification pops up on the dashboard screen stating stabilitrack off or steering assist off, which stiffens the steering wheel and I can't turn the truck at all. At one point, the notifications popped up and then my a/c went off and radio went off along with my entire vehicle. I had to slam on my brakes, place the vehicle in park, and then restart at which point it came back on and worked until I could pull over and assess what had occurred. I attempted to call GMC customer service (800-996-9463) and advise them of the problem and they acknowledged a recall (#17276 - loss of steering assist), but it didn't apply to my VIN#. It only applied to 2014 models of both Chevrolet silverado ld and GMC sierra ld vehicles, whereas my vehicle is a 2014 GMC sierra ltd. They advised that a GMC dealer could "reprogram the eps module software", but the cost would come out of my pocket and they wouldn't acknowledge any fault or recall issue. My concern is obviously the fact I have kids and transport them to and from school and sporting events. I couldn't even imagine this happening with children in the vehicle and causing an accident or worse injuries to passengers or the driver. This is a major safety issue, and I'm surprised this hasn't been addressed or acknowledged by GMC.

My truck meets the exact description outlined in gm recall #17276 resulting from NHTSA acknowledegement nef-150sm and 17v-414. Instead of re-constructing the description myself, I will just provide the language included in the recall notice because it is exactly the symptoms my truck experiences. I couldn't decribe it better if I tried. From gm recall notification n172085440 "condition: general motors has decided that a defect which relates to motor vehicle safety exists in certain 2014 model year Chevrolet silverado ld and GMC sierra ld vehicles. These vehicles may experience a temporary loss of electric power steering (eps) assist followed by a sudden return of eps assist, particularly during low-speed turning maneuvers. The loss and sudden return of eps assist typically happens within a 1 second period and is caused by an electrical/software issue. If eps assist is lost and suddenly returned, the driver could lose temporary control of the steering wheel, increasing the risk of a crash. Correction: dealers will reprogram the eps module software. ".

Tl the contact owns a 2014 GMC Sierra 1500. The contact stated that the electronic power steering failed, which caused the steering wheel to jerk violently to the left when turning right. The dealer (wiers Chevrolet Cadillac GMC, 416 s halleck st, DE motte, in 46310, (219) 987-5555) indicated that a software update would not provide a permanent remedy; therefore, the manufacturer approved the replacement of the electronic power steering assist. In addition, the vehicle failed to start and stalled several times without warning. The vehicle was taken back to the dealer who was unable to duplicate the failure. The manufacturer was notified of the failure. The approximate failure mileage was 56,000.

The contact owns a 2014 GMC Sierra 1500. The contact stated that the four wheel drive gear was jammed when she attempted to start the vehicle. The vehicle was taken to the dealer where it was diagnosed that the failure was a software issue and the vehicle software needed to be updated. The vehicle was repaired, but the failure recurred. The contact stated that the failure occurred on four separate occasions after the repair. The manufacturer was notified of the failure. The failure mileage was approximately 9,000.