The contact owns a 2017 Chevrolet Silverado 1500. The contact stated while driving at various speeds, the vehicle shuddered and experienced hard downshifting. No warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 94,000.

- Saginaw, MI, USA

My 2017 Chevy Silverado was giving me minor issues about two weeks previously, I was coming on the road and hear like something broken in pieces. I stop at the light and when I was to go forward to continue my with driving the truck was going backwards.. so scary thanks God, I didn't press the acceleration fast I would it have hit the car on back of me. I set emergency lights and call for help.. truck was moved from the road and brought back home. Please look into this safety issue.

- Arlington , TX, USA

The transmission lost every gear but 1st, 2nd. I was driving it down the highway when it lost the gear putting myself, other motor vehicles, and pedestrians safety at risk. The transmissions are known to by others and gm to lose gears or blow and no recall has been issued to rectify the issues. the vehicle was scanned by a trusted local auto motive shop. there were no warning lamps messages or other symptoms prior to the failure. It was going down the road then slipped/sputtered, dropping in to second gear then the checking engine light came on.

- Fayetteville, NC, USA

I bought my 2019 Chevrolet Silverado 1500 RST used almost 2 years ago. I noticed shortly after buying it that the truck will stall in low gear then lunge forward unexpectedly, it didn't do it all the time just once in a while. Problem is it seems to be happening more frequently and varies in severity. I've asked the local GM dealerships about this issue several times while having it in for service or oil changes. But was told each time that its common with that transmission and nothing to be concerned about, the problem is that I am. I recently started doing research on this and noticed I'm not the only one having these same issues. I'm filing a report as it worries me that a vehicle I'm making payments on is acting this way. I'm also concerned that with the truck in drive and moving, without warning then lunges forward could cause myself or someone else serious injury or worse. This I believe is not the fault of the owner/driver, but GM itself. This problem is not an isolated issue, but one shared by many consumers, me included.

- Merrillan, WI, USA

experienced several years of misfire problems, replaced spark plugs twice which seemed to fix the problem short term. while out of my home state(retraining for a new job in the Airforce) the misfire became significantly worse and made the truck undrivable. brought the truck to a local mechanic and they told me that I had bad misfires on the AFM/DOD cylinders and need to replace them all. chevy confirmed the diagnosis also stated there not going to offer coverage for this know issue. this know failure has costed me 15k in total costs when GM has know about this for years and could have fixed it before costing me so much money. I've also received no help from the chevy dealership or corporate regarding this know problem and I've been told its going to be an out of pocket repair and there's noting they will dop to help.

- Milton, FL, USA

6L80 transmission delay of gear engagement. Gears slipping from 1st to 2nd to 3rd. Hard gear engagement when accelerating. RPM-??s rev higher when transmission is shifting.

- Albuquerque, NM, USA

The contact owns a 2017 Chevrolet Silverado 1500. The contact stated that while attempting to accelerate from a stop sign, the vehicle jerked before shifting into drive(D) and accelerating. The vehicle was immediately taken to a certified mechanic where it was confirmed that the vehicle had experienced transmission failure. The vehicle was not diagnosed or repaired. The dealer was contacted, and it was confirmed that the VIN was not under recall. The dealer referred the contact to the NHTSA Hotline to report the failure. The failure reoccurred at a stop light on the same day. The contact stated that the vehicle was only able to be shifted and functioned in reverse(R). The following day while attempting to accelerate while idling, the vehicle failed to operate. The vehicle was turned and restarted but failed to shift into gear. The vehicle was not taken to the dealer to be diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage 88,000.

- Hazel Park, MI, USA

Recently had to have the transmission replaced on my truck. I was driving on an on-ramp onto a highway and my transmission would not change gears once reaching 50mph, where the speed limit was 70mph, causing me to almost be rear-ended. This was without warning, no lights came on and no other conditions were noticed prior to this event. I pulled off the highway and the transmission was making hard shuddering noises. I had a dealership look it over and they determined I needed a full transmission replacement. Upon researching online, this appears to be a common problem for this vehicle.

- Liberty Township, OH, USA

My 2017 Chevrolet Silverado 1500 5.3l V8 has a common transmission failure. The torque converter started malfunctioning under 100,000 miles. I kept a good maintenance and was not expecting a transmission rebuilt. The truck almost cause an accident due to loss of acceleration and gears at the freeway speeds of 70mph.

- Zephyrhills, FL, USA

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