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

The contact owns a 2014 GMC Sierra 1500. While driving approximately 50 mph during inclement weather, the vehicle suddenly veered to the left and crossed over a lane. The vehicle spun 180 degrees and crashed into a ditch. The rear passenger wheel dislodged from the vehicle and was located approximately 150 yards from the crash sight. The air bag did not deploy and the driver sustained a bruised neck. Medical attention was not received. Police report number: Spc32B7N80X was filed at the scene. The contact discovered that a 10-inch section of the brake rotor was missing from the vehicle. The vehicle was recently serviced for NHTSA campaign number: 19V645000 (service brakes). The manufacturer and hudson GMC (2023 South rd, poughkeepsie, NY) were notified of the failure. The failure mileage was 72,000.

- Newburgh, NY, 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

The contact owns a 2014 GMC Sierra 1500. While driving 60-75 mph, the front end of the vehicle vibrated. The vehicle was taken to miller Buick GMC (920 us-1, iselin, NJ 08830, (732) 596-7752), but the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 29,000.

- Eselin, NJ, USA

For over 45K miles I have complained off a vibration coming from the rear of my GMC Sierra at 65 to 75 miles per hour. My supporting dealer that I purchased it from can't find the problem and is most likely out of business.this is an ongoing issue. Recently I went under the truck to find the entire frame is rusted from the gas tank back to the rear off the vehicle around the spare tire and elsewhere. Whats wrong with GM manufacturing, are they that cheap, that no paint is place on the frame. Additionally the chrome wheels that came with the vehicle are corroding yet another cheap process that GM refuses to address. Mind you I have always fixed and repaired my own vehicles. I have washed this vehicle so much by using a cold water hose under the vehicle and the top as well to get the salt and brine used by the northern states off the car and yet I still get the corrosion. How do I get GM. To fix the wrongs they have produced.

- Shelton, CT, USA

Dec. 11,2017 driving under 20 mph on a local road speed limit 30mph ball joint pulled out of control arm front drivers side. Front wheel fell over caused damage to tire and rim and disabled ABS system by cutting wires. Lucky I was not on interstate 84 going 65 mph in fishkill New York truck could have crashed with other vehicles or caused serious injury to occupants of my vehicle could have caused vehicle to roll over. Dealer claimed never heard of this happening and that I must have hit something to cause the ball joint to pull out of control arm, never hit anything not even a pot hole I am the only driver of this vehicle. Had to replace control arm which holds the upper ball joint which is pressed into control arm. Took dealer from Monday to Friday to complete repairs. Control arm not under warranty repairs cost $936.42. Found many complaints about ball joint and control arm separating on this vehicle online. Driver side front ball joint.

- Hopewell Junction, NY, USA

Vehicle has shudder, wobble and vibration when being driven at speeds 40-80. GMC has diagnosed as a tire issue but vehicle has been seen 14+ times and tires have all been road force balanced, numerous times. GMC refuses to diagnose further and has not identified the cause of the problem. Vibration has affected other components. Commonly reported problem affecting 2014 GMC Sierra trucks based on internet search.

- Brandon, FL, USA