2019 GMC Sierra 1500: transmission slipping

Filed Aug 11, 2026 · Transmission · 126,098 miles · TX

The contact owns a 2019 GMC Sierra 1500. The contact stated that while at a red traffic light, the vehicle accelerated unintendedly, and the vehicle shuddered with an abnormal dinging sound coming from the vehicle. The message "Transmission Hot - Idle Engine" was displayed on the instrument panel. The vehicle was taken to a dealer where it was diagnosed and determined that the transmission was slipping, overheating, and that the transmission needed to be replaced. The contact researched and became aware of a recall; however, the VIN was not under recall. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline to report the failure. The failure mileage was approximately 126,098.

Filed Apr 22, 2026 · Transmission · MD

Shuddering, slipping, then lost all gears. Unable to put in reverse, drive, or low. Repair shop says the transmission needs replacement. Pump and torque converter issues. Vehicle has excellent maintenance and only 84k miles.

Filed Jan 8, 2025 · Transmission · WI

My truck has had two lifters fail at different times which ended up ruining the camshaft Now my truck feels like it’s going over a rumble strip on the highway at low rpm’s. During this speed the trans is slipping and can not pick a gear. Other gmcs had a service bulletine to change trans fluid but my did not. I have emailed twice to gm and have not heard anything back. I have close to 10000 in repairs and my truck has been down for 4 months.

Filed Nov 8, 2024 · Transmission · 30,000 miles · PA

The contact owns a 2019 GMC Sierra. The contact stated that while shifting gear, there was an abnormally loud banging sound coming from the vehicle. The vehicle failed to shift into gear properly. The wheels were slipping and pulling while driving at various speeds. While driving on the road, there was an abnormal rumbling sound. There were no warning lights illuminated. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The vehicle was taken to another local dealer, Joe Ball GMC (1750 William Flinn Hwy., Glenshaw, PA 15116); to be diagnosed. The contact was informed that the transmission needed to be drained and flushed. The dealer informed the contact to drive for 200 miles. The dealer also recommended replacing the transmission. The vehicle was repaired, but the failure recurred. The manufacturer was contacted and referred to the federal safety agency Hotline. The approximate failure mileage was 30,000.

Filed May 28, 2024 · Engine, Fuel system · NC

Check Engine Light came on while driving system scan states misfire cylinder 6 but resulted in the lifter being damaged as well as the cam shaft on a vehicle that has 108,000 miles. Prior to this I reported multiple times that it seemed that the transmission would slip and stuttered when on a incline and put in reverse. I was told it was a computer program issue and was charged for a software update which obviously did not fix the issue but ruined the engine.

Filed May 15, 2023 · Transmission · AK

Transmission is slipping into neutral from a slow start and re-engaging with a hard bang to the point it feels like I’ve been rear ended from a vehicle behind me. It’s done it twice in two weeks and it seems to happen when I’m leaving from a stop or slowing down and then come back into the accelerator.

Filed Oct 12, 2022 · Transmission · AZ

When I first start the truck up and reverse out of my driveway once I shift it to drive it hesitates and feels as the transmission slips from 1st to 2nd gear. Makes it a safety issue due to the truck launching forward once the acceleration kicks in and the revolutions are high once the truck starts its speed from the hesitation.

Filed May 23, 2021 · Transmission · UT

While driving the transmission shifts very hard. And when starting to accelerate from a stop the transmission slips.

Filed Mar 2, 2020 · Electrical, Suspension · 1,100 miles · NC

Transmission slipping turning corners at 5 MPH, transmission slip take off at hill stop sign, transmission hard shift 2nd to 3rd gear intermitted and vibration 45 MPH to 55 MPH

Filed Dec 2, 2019 · Brakes, Seat belts · 1,000 miles · FL

You can constantly feel a bump,clunk & transmission slip when going from reverse to drive. This is dangerous as I was pulling a small boat and it came off the hitch hitting the trucks tailgate and causing damage to it. This will happen seconds after drive is already engaged. After 3rd time I took to dealer the mechanic gave me a gmc memo that states that this is normal for this model truck to do this. Mechanic stated gm has known about this issue for years. Are you kidding me ? Sounds like poor engineering. I was never told this would happen pre purchase or I would of never bought the truck. Have had constant problems with this truck since I bought it. Have had the seat belt pillar cover fall off 3 times dealer says they will change seatbelt, waiting over 2 months and no parts or repair. I have a warning to service brake pad sensor monitor. Took to dealer and they say they can't get parts for it yet because gm is on strike and have been waiting for parts and repair for over 2 months . Have had a steering wheel column warning also. Dealer blames everything on software issue. My diagnostic report each month states truck is in perfect order even though I have had a warning light for over 2 months !!!!! Now there is a recall for the seatbelt pretensioner that it might cause a fire ! What a piece of junk this truck is I tried to support the american economy by buying an american truck and look what I get ! I should of bought a toyota tundra !!!!!!!