The contact owns a 2017 Chevrolet Silverado 1500. The contact stated while driving 50 MPH, the vehicle jerked while accelerating and while braking. The contact stated that the failure recurred several times while driving. There was no warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the transmission had failed and needed to be rebuilt. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 160,000.

- Walls, MS, USA

I am fully aware of of GM-??s Hydra-Matic 8L90 transmission or Hydra-Matic 8L45 transmission on the 2015-2019 models. My wife was driving with our kids on the highway yesterday and the trucks immediate shaking, increased high RPMs, slow acceleration and violent downshifting. Scared them very much on the highway while going at the normal speeds of 65mph trying weave through traffic and make it back home on top of that. With zero warning and this having happened on my first 2011 Chevy Silverado as well. I know full well there are more class action lawsuits against GM. Them being allowed to get away with this consistent problem and not owning up to their failed products is unacceptable.

- Fort Moore, GA, USA

Bought my truck brand new in 2017 7 years at 119000 miles I was driving down the road stopped at a red light and when I proceeded to step on the gas when the light turn green my rpm would go up but the truck would not move in the middle of traffic I had to have it towed to a repair shop where I was informed there was an internal transmission failure which cost me nearly 10000 dollars out of pocket to fix never no check engine lights or notice before this happened or after

- Lexington , KY, USA

The contact owns a 2017 Chevrolet Silverado 1500. The contact stated that on several occasions while driving at various speeds, the vehicle jerked violently. The check engine warning light was illuminated. The contact stated that on the first occasion, the vehicle stalled. The vehicle was restarted after two attempts and the check engine warning light disappeared. The failure persisted after several minutes while driving. The vehicle was taken to a dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not replaced. The manufacturer was notified of the failure. The failure mileage was approximately 69,000.

- Hamburg, AR, USA

The contact owns a 2017 Chevrolet Silverado 1500. The contact stated while driving approximately 45 MPH, the vehicle started shuddering with the check engine warning light illuminated. The contact stated that it was difficult to shift to second gear. The contact was able to pull the vehicle to the side of the road and inspect the transmission fluid; however, the failure persisted. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that an appointment was scheduled with a local dealer to diagnose the vehicle. The manufacturer was not made aware of the failure. The failure mileage was approximately 109,000.

- Aberdeen, NC, USA

The contact owns a 2017 Chevrolet Silverado 1500. The contact stated that while at a stop the vehicle would not immediately accelerate while depressing the accelerator pedal. The contact stated that moments later the vehicle erroneously lurched forward. Later the vehicle would not drive forward and only operated in reverse. The vehicle was towed to the local service center who diagnosed that the transmission had developed an internal leak and needed to be replaced. The vehicle was repaired. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The failure mileage was 84,000.

- Frisco, TX, USA

Vehicle shudder was noticed along with harsh shifting. Took to local shop and it was diagnosed as bad torque converter. Referred to transmission shop. Vehicle towed to transmission shop to avoid any further issues. Mechanic sent a picture of the magnet inside pan that was completely covered with metal shavings from torque converter. Mechanic stated new transmission would be necessary. Transmission was replaced February 2024. Truck had approximately 93000 miles on it.

- Princeton, KY, USA

At 83,000 miles the transmission failed. We bought this car from a Chevy dealership with 35k miles in November of 2021. We have performed all required maintenance. If GM knows there is a transmission issue with these trucks why won-??t they help their customers? It-??s a 7k bill on a truck with many more payments and that has less than 100k miles.

- Charlotte, NC, USA

Transition failed

- Bath, NY, USA

The contact owns a 2017 Chevrolet Silverado. The contact stated when the vehicle was started, there was a grinding noise coming from the engine and transmission area. The contact stated when driving the vehicle there was a hard shift when shifting gears. There were no warning lights illuminated. The vehicle was taken to a local mechanic who performed a diagnostic stating the transmission failed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 89,900.

- Hampstead, MD, USA

Transmission failed. As I was pulling a horse trailer the transmission went out of gear and left me on a curve in the roadway. No warring lights or any other kind of warning was given. I did take it to a dealer to have it checked out and was advised I would need a new transmission. The cost would be $7,000. I do not have the funds, therefore my truck is not drivable and is parked. I have learned this is a known problem with this transmission and GM is not doing anything about it. The very least they could do is pay for half of the repair cost.

- Buffalo Gap, TX, USA

Stalling with no power transmission is putting me at risk since I first purchased this vehicle. Transmission needs to be replaced because of the defective drive shaft on all 2017 models. Really serious problem with a hard shift and multiple misfire. Just not sure what to do at this point. I-??m still paying for a truck that-??s not working.

- La Puente, CA, USA

6L80 trans shudders and slips

- Elkwood , VA, USA

Transmission (6L80) torque converter failed at 76k miles. The transmission has never shifted well but was told that-??s how they shift. Vehicle is not used for towing. And all scheduled maintenance was followed. While driving down the road the transmission suddenly started shuttering and jerking. Luckily, I was able to make it to a transmission shop who confirmed the torque converter was shot. Called Chevy dealer and the service rep advised that there is a reason they have 30 of those transmissions on the shelf right now, it-??s a known issue. Unfortunately, it-??s outside the warranty. Transmission has already been replaced with a remanufactured 6L80. 500 miles after the new transmission installed, the torque converter went out again. Another 6L80 is scheduled to be put in. This transmission is unreliable and went out while driving down the highway. No warning lights ever came on to indicate any issues.

- Holly Springs, NC, USA

Torque converter clutch system stuck in -??off-??; and won-??t engage when commanded by system-??this is apparently a known and common issue. Causing gears to not engage properly and a safety hazard when driving on freeway and higher speeds.

- Dublin, CA, USA

The contact owns a 2017 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle briefly shuddered. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed failures with the thermostat and torque converter. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 38,000.

- Eltopia, WA, USA

2017 Silverado with 6L80, 59k miles - transmission failure due to TCC failure. Rough shifting, coming out of gear, shuttering when accelerating. Truck started to whine loudly when it was promptly taken to the dealership. Dealership dropped the pan and used magnet. Visible metal was in the transmission pan. There were no indicator lights on the dash from this issue. Requested goodwill warranty, gm replied they would cover 20% or $7k so I am stuck to pay $5k for a known issue. The replacement transmission is not new that they are offering, it is "certified refurbished" where they use the old casing with new internals. They are providing a 3yr/100k miles warranty on the new transmission. Deciding factors from GM were age, miles, service at dealership. Incredibly unsatisfied that GM is standing behind their vehicles not lasting 60k miles.

- Virginia Beach, VA, USA

While driving on the interstate the truck started jerking and vibrating, started slowing down, while in the fast lane, then a loud whining sound started, finally making over 3 lanes of traffic doing approximately 40mph got stopped on the shoulder. No warning lights or anything came on. Sat there not knowing what happened so I proceeded onto the freeway and it started lunging & squealing again, got off the next exit to find out it was probably the torque converter or transmission, so here I sit in Virginia & I live in Arizona stranded. And trying to figure out how to pay a $6000 to $8000 repair bill and to find out this is a common problem with GM transmissions

- Casa Grande, AZ, USA

Engine has always -??ticked-?? since new took it multiple times to dealer they said it-??s normal. Took it to shop they say its pushrods. Brakes front they wear unevenly even after being replaced by shop it always feels like truck is braking feels like it takes extra effort on gas pedal Transmission its a 6L80 only 85,000 miles and already there is metal shavings in pan and transmission is shifting hard and slipping.

- Modesto, CA, USA

The contact owns a 2017 Chevrolet Silverado 1500. The contact stated that after starting the vehicle, the vehicle failed to properly accelerate. While depressing the accelerator pedal, the engine revved, and the vehicle shuddered and vibrated but failed to accelerate as needed. The following day the vehicle was driven to the local dealer and was diagnosed, and it was determined that the transmission needed to be replaced. The vehicle was later taken to the local transmission specialist who confirmed that the transmission was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 94,000.

- District Heights, MD, USA