The contact owns a 2017 GMC Sierra 1500. The contact stated that while the vehicle was turned off, the driver-??s and passenger-??s side running boards would erroneously activate and repeatedly extend in and out. The contact was concerned that the failure created a trip and fall, and pinching hazard. The vehicle was taken to the local dealer who was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was also notified of the failure. The failure mileage was 80,000.

- Tinley Park, IL, USA

The contact owns a 2017 GMC Sierra 1500. The contact stated while driving 55 MPH, the vehicle began to shift hard, started shuddering, and lost electrical power. There was no warning light illuminated. The contact was able to push the vehicle to the side of the road with assistance. The contact was able to restart the vehicle however, the vehicle was shifting hard and was shuddering while driving. The vehicle was taken to the local dealer where it was diagnosed that the main power cord had failed and needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was taken to a second dealer; Fresno Buick GMC (5515 N Blackstone Ave, Fresno, CA 93710) where it was diagnosed that the transmission torque converter and the engine mounts needed to be replaced. Additionally, the dealer diagnosed that the coolant reservoir had failed. The vehicle was not repaired. The manufacturer was notified of the failure through email. The failure mileage was approximately 56,000.

- Coarsegold, CA, USA

The trailer brake System sensor keeps going off making the vehicle unbearable to drive. The transmission also jerks when it gets to 7 mph. I've taken the truck to the GMC dealer over 3 times to check the transmission problem and it still jerks. This has been a on going problem since the purchase of the vehicle.

- Mansfield, TX, USA

My complaint is of the intelilink system in this vehicle. While driving the system would change screens, when turned off would turn itself back on. It would hang up on phone calls, would make all these beeping sounds and change stations on radio. It was very distracting and I feel dangerous in that especially at night as I said would not stay turned off so the beeping and changing of the screen that would make the large(8-??) screen go from night mode to day mode and shine into your eyes. When navigating to somewhere system would show that you were in one place, when you were possibly 20 miles from where it would show you to be. Bad because it maybe showing and telling you turn by turn directions and all of a sudden it-??s gone. This problem has been diagnosed by a dealer and repaired at a cost of $887.85. Was told that it is a very common repair that they do. Have contacted gm customer service and let them know that I thought a 2017 vehicle with 35000 miles should not have this problem and would like some kind of compensation for the problem and repair

- North Port, FL, USA

while driving I get a repeating alarm chime and "Service Trailer Brake System" caution statement on dash panel. This alarm will go off as often as once every three seconds. It is both startling and a hazard to the driver and while towing condition of the trailer brakes is unknown.

- St Louis, MO, USA

Service trailer brakes light pops up and chimes over and over again. I've never pulled a trailer. It's distracting and will randomly go off. Seems to go off when gas is below 1/4 tank. Sometimes it goes months without happening. Sometimes it happens a few days in a row. The dealership says they can't do anything unless they see it go off.

- Anoka, MN, USA

Rear window defroster started smoking and broke my back window. Known issue. Recalled only in Canada not in US but US vehicle having same issue.

- Feasterville , PA, USA

The front driver side window won-??t roll down or engage; the a/c blows warm/hot on the drivers side vents; the stereo system continues to, -??Glitch-?? changing stations, displaying other information without the screen being touched. These often cause discomfort by not operating properly. The dealer did not suggest any concerns upon my purchasing the vehicle. Vehicle was never taken to a certified GMC dealer for these issues.

- Barrigada , GU, USA

The contact owns a 2017 GMC Sierra 1500. The contact stated that while stopped at a traffic sign, the vehicle lost motive power. The vehicle was towed to the dealer and diagnosed with Vehicle Control Module (VCM) failure. The contact was informed that the VCM needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 84,000.

- Akron, OH, USA

My truck trailer Brake system continues to come on and my doors are locking and unlocking. It has my 4x4 trans rubbing as well. Its a non stop issue everytime I get into my truck it does this and it happened out of no where. I had this truck a little over a year now.

- Saint Louis, MO, USA

Lost of acceleration at a set speed the throtal stopped to increase the speed and just flooped to floor. When the speed slowed to a set point, acceleration control returned. When it hit the high setting it again lost control to increase speed. This happened every time I reached the drop off speed. Why dose this happen"?" one time I was on a highway passing two trucks on a upgrade when this happened the #2 truck went to pass #1, the #2 truck was on my rear thank god acceleration returned. I reported this occurance to manufacture & to "NHTSA" over a year ago. I got "no" answers or responce from anyone!!!

- Feasterville Trevose, PA, USA

Randomly all electronics shut down engine stalls and lane assists wont let me turn wheel while driving in road. Normally at slow speeds. Get random warning lights that go away after seconds. When I activate a window switch all the electronics turn off and on. This happens randomly. No codes have been left to pull up when trying to solve issue. Twice with children in the car in traffic that we have almost got in a wreck due to these random issues.

- Saucier, MS, USA

Driving at approx 55 to 60 MPH with rear defrost on. Began to smell a burning/electrical smell, and within 90 seconds heard a loud bang. Rear window (stationary piece on drivers side) had shattered. Smell presumably coming from the rear window defrost component. No warning lights or messages on the truck. My son was sitting in the rear seat at the time so this is a huge safety risk. This has not yet been repaired. Window replacement is scheduled with Safelite on 6/8, consult with dealer on rear defrost set for 6/10. Photos are available.

- Commercial Point, OH, USA

The contact owns a 2017 GMC Sierra 1500. The contact stated that -??hood open-?? was displayed on the instrument panel. The contact inspected the hood and confirmed that the hood was securely locked. The vehicle was not taken to be diagnosed. The manufacturer was not informed of the failure. The VIN was not available. The failure mileage was approximately 71,000.

- Wannaska, MN, USA

I was driving 50mph and was behind a semi as I started to pass him I noticed an oncoming car and decided there wasnt enough time to pass so I started to push the brake pedal to slow down and get back behind the semi and the brakes locked up which produced an uncontrollable spin in which I did a 180 degree spin and ended up going into the ditch backwards and tipped over on my side no airbags deployed either.

- Canton, IL, USA

The vehicle was in motion on a city street, when the vehicle completely powered off. The steering wheel locked. This occurred on 11/22/2020 and 11/23/2020. The following message is on my dashboard 'steering assist is reduced drive with care.'

- Salinas, CA, USA

The truck loose power when key is turned off and then come back on after a few minutes also stabilatrack system is shutting off truck once on the highway at 70 mph engine runs ruff and uses oil in less than 5000 miles has use at least 3 quarts the dod system make truck run extremely bad engine has miss in it also it is becoming unsafe to drive at times and brake pedal is very hard to push

- La Fontaine, IN, USA

The contact owns a 2017 GMC Sierra 1500. The contact stated that while driving 35 mph, the air conditioner started blowing hot air instead of cold air. The vehicle was taken to an independent mechanic and the contact was informed that a leak was found on the A/C compressor. The contact reached out to bob stall Chevrolet located at 7601 alvarado rd, la mesa, ca 91942, (619) 460-1311, and notified the dealer of the failure. The vehicle was not repaired. The manufacturer had been informed of failure. The failure mileage was 50,000.

- Chula Vista, CA, USA

Display screen to bright when vehicle is in reverse. When putting vehicle in reverse the backup camera display is so bright you can not see your exterior mirrors or out any of the windows to see surrounding area. This is very unsafe condition because you are blinded while backing up. When took the truck to dealership I was told they can't duplicate this. And have had no other complaints"?"

- Elizabeth City, NC, USA

On screen display for backup camera. When putting the vehicle in reverse, the on screen display is so bright that you can't see out the windows, the rearview mirrors or the surrounding area. This display does not dim with the rest of the lights. This causes a severe safety hazard when trying to backup the vehicle.

- Elizabeth City, NC, USA