Took the truck to get a diagnostic check due to the truck in driveway would not go into reverse so husband put it in drive to pull up a little to see if it would help to then go into reverse, instead, the truck jerked so hard & almost threw my husband & son into the garage door that morning. Husband & son came back in all shook up. The scan diagnostic code-chck showed: Trans fluid-indeed full; but way burnt; needs transmission; front pump making noise in transmission; torque converter; exhaust shows signs of back pressure-and one running hotter than the other; the left side running 100+ hotter than the right - needs transmission assembly removed & repaired; reman GM trans; Y-pipe w/both converters; fluids flush nuts bolt gaskets. I was told it would not be a good idea to drive it. I am retired military and maintained the truck throughout my military career, but no warnings showed on the dash reader for something wrong with transmission. It is a 2014 GMC Sierra 1500 slt 5.3L V8. VIN#[xxx]. need help if this issue has ever been placed on the recall list? if not, it should be. This issue could kill someone if it were to jerk while driving on the road. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Saint Robert , MO, USA

2014-2015 GMC Sierra were produced with a known faulty A/C condenser with a bad weld that causes an A/C system leak requiring replacement. There has been an overwhelming failure of the product across the country, so bad so that it even made the news. GM became aware of this issue and sent new (properly produced) condensers to their production lines first, leaving hundreds of GMC owners without A/C over the summer. They put out a "special recall" on a very small number of vins saying it "may" happen in other vins. There is an overwhelming volume of complaints online (including myself) where GM is acknowledging this issue but refusing to cover the replacement cost of their faulty part for hundreds of owners having this issue. This repair cost me a little over $1300. In the same service visit for my ac condenser it was identified that my radiator was leaking. This was due to a faulty thermostat causing stress fractures in the radiator causing coolant to leak. This issue has also been identified by GM however only a select few VIN's received warranty recalls. My total repair cost to fix both issues was in excess of $4000. Both problems are known to GM yet they have not remedied the issue for everyone.

- Lowell, MI, USA

Driving down the highway one day around 65mph the vehicle began to shudder violently, reducing my speed to less than 45mph all the way home (all the while still shuddering) I took it to a well known transmission shop "whitty transmissions" in oak ridge NJ only to have them drop the pan and find the transmission flooded with metal chips costing me a $3900+ rebuild. My transmission failed at 87,000 miles

- Wantage, NJ, USA

I own a 2014 GMC Sierra and the air conditioning condenser has gone out. This should be a recall since so many GMC & Chevrolet are having the same problem and no help is being offered to us. What a disappointment from GMC. If I would of been notified of this defect I would have never purchased these truck. Now I'm driving around in 110 degrees with my little son. Recall and fix this.

- Riverside, CA, USA

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle jerked and then stalled without warning. The vehicle was pushed into a driveway. The contact stated that her boyfriend's mechanic came over and diagnosed the vehicle. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. Neither a dealer nor the manufacturer were made aware of the failure. The failure mileage was approximately 108,000.

- Englewood, CA, USA

Service 4WD would pop up on my screen everytime I started my truck for the last two days going to work. When I go slow around turns then the truck would almost stop. Found out that it is the actuator and my 4WD is trying to go into 4-low automatically. Dealership could not fit me in for a week, so I took it a transmission place because this is my work truck and now have all my tools in my wife's acadia. I have a 32 ft ladder on my truck that I'm going to need asap and can't put on wife's acadia so I could not wait on the dealership to fit me in. All trans transmission place has had it since 3 pm on July 7th and I just paid $438 for a part and I'm up to three shop hours so far that I have to pay for when I pick it up hopefully tomorrow, which will include the additional shop hours in installing the new actuator. This is getting expensive and there is no recall for this part that I've seen, but should be included in the manufacturer warranty. I can provide all receipts once I get them.

- New Castle, DE, USA

At speeds highway speeds 50 and above the truck can shack horrible causing to apply vehicles hazards and pulling off the road for feeling like the truck is coming apart with the fear of loosing control of the vehicle. The horrible shack cause nausea and dizziness. I have replaced wheels and tires, shocks, re aligned and balanced multiple times nothing has fixed the issue. Will be in touch with a GMC dealer about this situation.

- Pueblo, CO, USA

Radiator has micro-holes which leaks coolant. Engine code P0455 with no GM mechanics able to find a solution to the engine code.

- Topeka, KS, USA

The factory installed head lights are so bad that you can barely see at night one of the worst most dangerous issues I've ever seen on a vehicle please let me know how we can remedy the situation

- Shreveport, LA, USA

Automatic transmission totally failed while entering unto interstate highway. Was able to pull off highway onto exit ramp partially blocking ramp until wrecker arrived. Required complete rebuild

- Lafayette, LA, USA

My truck has 158,000 miles and had to have a new transmission put in as it was having problems accelerating, grinding and sounding like I was going over rumble strips.

- Edinboro, PA, USA

Radiator is leaking from the top with only 67,000 miles and transmission shifts hard and when U let off gas while driving about 55 the rpms go down to idle then start bouncing up 500rpms then back down. Then eventually will find a gear to go

- Richmond, VT, USA

The contact owns a 2014 GMC Sierra 1500. The contact stated taht while driving approximately 75 mph, the vehicle started to shudder. No warning indicators were illuminated. The vehicle was taken to an independent mechanic, where it was determined that the transmission needed to be rebuilt. The contact stated that the vehicle was taken to yes Chevrolet located at 200 Saturn way, hurricane, wv, 25526, for an oil change a week prior to the failure where the contact was informed that there were no additional issues with the vehicle. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 150,000. VIN not available.

- Hurricane, WV, USA

The engine light stayed on after the truck had an oil change at the dealershiptechnician checked and found oil pressure control valve solenoid circuit open technician scan for codes and DC tcpo6 da is snap technician performed system test and measure the resistant of the oil pressure controls solenoid at X15 for the solenoid and the internal harness read open technician removed the oil pan and found the solenoid connection has been disconnected which was not properly assembled at the manufacture and technician also discovered transmission lines leaking

- Lolo, MT, USA

The contact owns a 2014 GMC Sierra 1500. While driving the vehicle, a roaring noise was heard and the vehicle would jerk, lunge, and sputter when started. Prince automotive group Chevrolet (4550 N valdosta rd, suite #200, valdosta, ga 31602, (866) 560-9556) stated that the vehicle was not included in a recall for that specific failure. The manufacturer was called and forwarded the contact to NHTSA. The failure mileage was 110,536.

- Hihira, GA, 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

Whwn driving on highway at 60 mph - tried to pass accident scene truck tac started reving. Speed dropped to 25-30 mph. Pushing accelorator only reved the engine more with no increase in speed. Burning smell. Dealer unable to find cause. Happened twice.

- Painesville, OH, USA

While slowing down at traffic truck felt like it was super heavy and kept going, brake pedal got hard and could not press down. Ac went out on me twice do to bad compressor and had to repair at dealer. Transmission knocks when slowing down and hard shifts like its going to break. Also visibility is poor on vehicle when driving at night as the light are very dim. Had to buy alternate lights but still dim.

- Casa Grande, AZ, USA

My 2014 GMC Sierra pressure control solenoid went bad. Took it to knight automotive, Inc., in plattsburgh, NY for repair. After repair I drove home only to be told by bill delord GMC in lebanon, oh - and boercherding GMC in cincinnati, that the entire transmission was destroyed. Knight put my family at risk by improperly repairing my vehicle.

- Maineville, OH, 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