When I slow down to make a turn, my truck loses power making the turn very dangerous. I lose control of the vehicle for a few seconds due to loss of power. It is very dangerous for me to make turns.

- Montgomery, AL, USA

It turned off while driving on freeway I immediately put on N and start back up. It also pulls back as I-??m driving normal 35mph. My Rpm gaug goes up to 3 while driving down hill and locks

- Bakersfield, CA, USA

I was driving down the road and all of the sudden it was if my transmission disengaged and my car lost power. It then automatically came back on and the 'service stabilitrak' lights came on. I nearly avoided an accident and was able to pull off onto the side of the road.

- Crown Point, IN, USA

The vehicle 4WD system remains engaged and will not disengage. Upon further investigation the system effects steering and drivability. Also effects speed of the vehicle. The vehicle utilizes a code C0398 and show a message of the dash service 4WD. This is due to faulty software installed by the manufacturer. Will cause damage to mechanical parts if driven on the vehicle and is a safety hazard. GM reference # issued to me when issue complaint of the out of pocket cost to update the software as required by GM to fix their operating system. My reference number is 9-5058496526. Same issue resulted in 2015 GMC Sierra that caused GM to issue a service bulletin #28770. Software issues are not wear and tear components. GM faulty software is the responsibility of the GM as they can cause safety and damage to the mechanical parts of the vehicle.

- South Attleboro, MA, USA

I was driving on the interstate and a message stating "service stabilitrack" message appears simultaneously with the check engine light and service traction control, the car loses the ability to accelerate and maintain speed. I kept driving because there was no safe place to stop, and after a few miles the door locks unlocked then locked, the info screen flashed and then the engine revved and appeared to drive normally. Several miles later it happened again, over and over. When I reached my nieghborhood the car completely powered off.

- Boston, MA, USA

We had the vehicle recall notice about the stability and power assist repaired at our preferred GM dealership, james wood, before the problem occurred because of a recall notice we received last year. Sunday, January 30, 2018 the dash displayed power assist limited and also displayed ABS light. Service engine soon, so we brought it to the dealership again. This time the vehicle was revving high but no display. The dealership observed the vehicle doing this but we were told the recall had already been performed. There is a revised product safety recall reference number N172085440. I'm alerting the NHTSA of this.

- Denton, TX, USA

Yesterday I was driving home on the highway driving approximately 75mph when without any warning a stability steering control light flashed on the dashboard behind my steering wheel. The car immediately jolted from driving mid 70's down to an immediate 67mph. This speed limit was the last thing that flashed before my dashboard blacked out, the steering column locked and the vehicle entirely lost power while driving. Seconds later my windshield wipers sporadically started moving (I did not engage the switch) and I watched the temperature go up from 70 to 80 without touching the gauge manually. The car jolted for almost 10 miles sporadically losing control intermittently and when I exited off the highway and made a left hand turn at a low speed (under 15mph) the steering completely locked and the car pulled off to the side of the road toward a curb. I gained control of the vehicle manually which was difficult but I did correct the drive path back onto the road. I pulled into the dealership at a low rate of speed and the car did the same thing as it did when I exited the highway. I'm in a loaner and the dealer has my vehicle. This vehicle was purchased used roughly 2 months ago from a registered GMC dealer with 40K miles on it. It now has roughly 44K on it. I have made 1 payment on this vehicle thus far.

- Kennebunkport, ME, USA

Complete loss of power steering along with speed control being disabled when a turn signal is activated. Recall 17V414000 has already been completed and did not correct the problem. Both of these issues occur during the same drive cycle (issues have not happened simultaneously but will both occur at some point during the same drive cycle) they seem to only happen on drive cycles that last longer than 45 minutes.

- New Richmond, WI, USA

Intermittently, when applying the brakes to stop for a red light, the engine wants to keep the vehicle going at the same speed and fights the brake so the vehicle cannot stop. Shifting the gear shift into neutral allows the brakes to work but the engine RPM revs up to 2500 RPM for about 15 seconds before dropping to idle. If the driver didn't apply the brakes hard enough or shift into neutral, the vehicle would overpower the brakes and drive into anything ahead. Analogy: It acts as if the cruise control was on (and it's not) and tried to keep the same forward speed no matter the brake application. Dealer cannot reproduce the problem, no alert warning light. Some times, going at highway speed, taking foot off accelerator and expecting vehicle to start slowing down, it stays at same speed for about 15 seconds before dropping rpms. This has been happening, intermittently, for a few months.

- Hollis, NH, USA

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving the gear shifted into neutral inadvertently and caused the vehicle to abruptly accelerate. The contact also stated the vehicle consumed the engine oil prematurely and exhibited electrical failure with the windows opening and closing independently and the headlights failed to illuminate. The vehicle was taken to the dealer several times for the failures however; the dealer advised there was nothing they could do to repair the vehicle. The manufacturer was notified F the failure. The approximate failure mileage was 8,000.

- Charlstown, NH, USA

Mark porter GM superstore in pomeroy, oh sold me a new truck with unresolved recalls in December 2014, one being GM recall 14192. The engine in my truck failed on January 1, 2015, and the recalls were disclosed to me when the truck was towed in for repair, approximately 2 weeks after purchase. The aforementioned safety recall is in reference to a potential transfer case selector malfunction. After repair of the recall, I had a malfunction of the transfer case selector, except it became stuck in 4 wheel drive, instead of shifting to neutral. I had also been experiencing issues with the cruise control, which I asked them to address while it was in there for the 4 wheel drive selector problem. The service dept reset the 4WD selector again, and told me that my cruise control issue was related to the 4WD issue. I still have issues with the cruise control, and have requested a buy back. It has been approximately 5 weeks since I informed them that I feel my vehicle is unsafe, and nobody has made any effort to help at all. I would like to return my vehicle for a full refund, as well as I would like to see the dealership fined for selling me a vehicle with an unresolved safety recall. I feel this is unacceptable on their behalf.

- Point Pleasant, WV, USA