While driving the truck it will have a hash upshift which has happened on five different occasions plus on two other occasions after first startup and drive the transmission will not shift out of third gear it will just wind up the RPM's as if transmission is stuck in third gear. I have to let off throttle then accelerate and back-off a couple of times to get transmission to shift out of third gear. The software upgrade is not a fix for this recall as it does not address the problem. The valve body installed in these ten speed transmission is a manufactures design flaw along with using inferior parts required for the safe operation of this vehicle. There are documented claims of the valve body failing causing catastrophic failure of the entire transmission and GM Corporation will only cover the valve body. GM has told it's customers that they will warranty the VB only that the other damages are not covered. The recall letter I receiver indicates that only the VB is covered. This is unacceptable. It is because of the VB failure that the transmission will suffered catastrophic failure, Without a properly functioning VB the transmission cannot receive the lubrication it needs to function properly. I have not had the software update as their are reports of customers trucks going into limp mode shortly afterwards. Their trucks are then parked on dealer lots as parts are currently unavailable for weeks at a time in some cases months. These customers use these truck for their livelihood and they invested a large amount of money purchasing these trucks only to be told So sorry GM will not cover your claim even through it was our defective VB that destroyed your transmission. These trucks are not cheap to purchase nor to properly maintain.

- Cibolo, TX, USA

Def tank heater. I had one replaced @ 24K and another replaced 47K

- Lavista, NE, USA

1. Transmission recall N242454440 Chevy 2500hd Diesel Silverado 2020yr. Jan 2025 valve body inside transmission was replaced, recall pending, parts not available, NOT DONE. 2. Currently having this issue but no recall information found for my Vin...The "P22F9" engine code on a 2020 Chevy Silverado 2500 diesel indicates a recall related to the NOx sensor, specifically a "slow response" issue with the sensor, which the Engine Control Module (ECM) might not properly detect; this recall requires a software update to the ECM to address the problem. Key points about this recall: -??Affected vehicles: Primarily 2020 Chevrolet Silverado 2500 and 3500 trucks with diesel engines, as well as similar GMC Sierra models. -??Issue: The ECM may not accurately identify faults with the NOx sensor, potentially leading to emission issues and reduced engine performance. 3. P1089 fuel deceleration problem, several repairs were done but problem still persists. GM engineer's told dealership having problems with computer duplicated codes in memory. Engine light goes on and off over 50,000 miles, vehicle runs great and no gas found in oil. At one point engine light was off for 14,000 miles. *P1089 should definitely be a RECALL ITEM! MISC: Yes available for inspection. No safety problems as of yet. All repairs were done at dealerships and confirmed by dealership. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? NO * I have contacted GM management staff in Michigan Mr. Craig Gidden, senior executive liaison, which referred me to CA customer service and supervisor, all to no avail, absolutely horrible customer service! They did not want to provide their contact information etc. *Contacted the GM arbitration department, they provided a case number but will not provide or respond to my emails for supervisor and GM legal department information.

- Paso Robles, CA, USA

We received a recall notice 4 weeks ago on our Chevrolet Silverado diesel truck. VIN:1GC4YPEY0LFXXXXXX. The National Highway Traffic Safety Administration Campaign 1D Number for this recall is 24V797. We can not get any answers from GM as to when it can be fixed. We use this truck for heavy towing constantly. We do not want to be in harms way. Can you help resolve this problem?

- Auburn, CA, USA

In 2024, I noticed that my truck was experiencing rough shifts. It felt as if the back wheels were jerking over uneven ground, even though the vehicle was on a flat surface. In November 2024, my sister sent me an article about General Motors' massive recall due to rear wheel lock-up, which increased the risk of crashes. I contacted GM and learned that my truck was part of the recall. I reported the issues my truck was exhibiting, and GM instructed me to reach out to my dealer about the problem. However, I was informed that they did not have the parts to fix the issue and had no idea when they would receive them. I asked GM if they would provide me with a rental vehicle, but they declined, stating that if they offered a rental to me, they would have to provide one for others as well, which was not feasible due to the large number of affected vehicles. I explained that my truck is my daily driver for work, and I frequently transport my grandchildren in it. Driving the truck was hazardous given the issues it was already exhibiting. I was told to contact my dealer, and since my truck was under warranty, they should provide me with a rental. When I requested to speak with a manager, I was informed that they would only reiterate the same information. I then contacted my dealer, Sapaugh GM Country, located at 1435 McNutt St., Herculaneum, MO. I was informed that they do not have the parts. but they did a minor tweak which has caused more damage to my powertrain and engine.

- Blackwell, MO, USA

The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving 30-50 MPH on four occasions, the rear wheels locked up. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Number: 24V797000 (Power Train); however, the part to do the recall repair was not yet available. The local dealer was contacted. The vehicle was taken to the local dealer, where it was diagnosed that a software update was needed. The vehicle was repaired, but the failure recurred. The vehicle was taken back to the local dealer, who was unable to duplicate the failure. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 81,381. VIN tool confirms parts not available.

- Tucson, AZ, USA

The contact owns a 2020 Chevrolet Silverado. The contact received notification of NHTSA Campaign Number: 24V797000 (Power Train) however, the part to do the recall repair was not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.?VIN tool confirms parts not available.

- Pinedale, WY, USA

The contact owns a 2020 Chevrolet Silverado 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted and confirmed that parts were not yet available for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

- Fontana, CA, USA

The contact owns a 2020 Chevrolet Silverado 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power Train); however, the part to do the recall repair was not yet available. The located dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

- Los Alamos, NM, USA

The contact owns a 2020 Chevrolet Silverado 2500. The contact stated while driving 50 MPH, the accelerator pedal was depressed; however, the vehicle failed to respond. No warnings lights were illuminated. The contact pulled over to the side of the roadway, turned off and restarted the vehicle; however, while attempting to shift into drive the vehicle hesitated and failed to respond as needed. The contact stated that the failure persisted. The vehicle was taken to a dealer where it was diagnosed and determined that the transmission had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The failure mileage was unknown.

- Monroe, GA, USA

The contact owns a 2020 Chevrolet Silverado 2500. The contact was notified of NHTSA Campaign Number: 24V797000 (Power Train); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

- Paton, IA, USA

The contact owns a 2020 Chevrolet Silverado 2500. The contact stated while driving at various speeds, the transmission was slipping without warning. The vehicle stalled without warning, causing the contact to restart the vehicle to continue driving. While attempting to accelerate, especially, after the vehicle was idling, the transmission failed to properly change gear, causing the vehicle to accelerate at slower speeds than intended. There were no warning lights illuminated. The vehicle had been taken to the dealer where it was diagnosed that the transmission failed and needed to be replaced. The vehicle had not been repaired due to a low supply of transmissions. The manufacturer was made aware of the failure. The manufacturer referred the contact to the NHTSA Hotline to file a safety complaint. The failure mileage was 80,000.

- Hermitage, TN, USA

Rear wheels locked up while driving/accelerating. Happened 5 times, 4 times while towing a camper once without towing. Luckily no harm or damage came to anyone. Traded in at dealership due to safety concerns after no diagnostics found anything -??wrong-??. It is already listed for sale, but I don-??t think It-??s been addressed or fixed.

- Clinton, TN, USA

The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving approximately 55 MPH, there was smoke coming from the rear of the vehicle. The contact stated that the vehicle then started losing motive power. After stopping to inspect the vehicle it was discovered that there was transmission fluid leaking from the rear of the vehicle. The vehicle was towed to the local dealer who diagnosed that the transmission cooling line had failed and needed to be replaced. The vehicle was not yet repaired. The contact stated the Extended Coverage for the failure was issued but the VIN was not included. The failure mileage was 67,000.

- Noblesville, IN, USA

The contact owns a 2020 Chevrolet Silverado 2500. The contact stated that while driving at 55 MPH, the tachometer was operating erratically, after which the vehicle lost motive power. The contact was able to pull to the shoulder of the roadway, and after a visual inspection, the contact observed transmission fluid pooling underneath the vehicle. The service electric parking brake warning light was illuminated. The vehicle was towed to the dealer, who determined that the transmission oil cooler line failed at the crimp and that a failure with the electric parking brake had caused abnormal wear and tear to the brake pads and rotors. The vehicle was not repaired. The vehicle was then towed to another dealer, who confirmed the diagnosis, adding that the failure resulted in damage to the transmission, requiring a replacement of the transmission. The vehicle was repaired. After investigating the failure, the contact related the failure to Customer Satisfaction Program: N212326940, but the VIN was not included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 67,000.

- Middle Grove, NY, USA

Vehicle lost power as a result of a bad shorted out connector on diesel injector 4 and caused engine misfires. Which resulted in the vehicle being under powered while driving down the road

- Central, SC, USA

The Transmission Oil Cooler line separated at the crimp joint from the rubber hose to metal pipe. This sprayed trans fluid all over my hot exhaust(fire risk) and caused and immediate loss of propulsion as I was accelerating to merge onto the highway. I was lucky enough to have multiple vehicles swerve to avoid hitting me. This defect left me on the side of the expressway.

- Vassar, MI, USA

DEF tank heater short causes wiring harness to melt and fault on diesel trucks, enabling limp mode. Limp mode is dangerous when hauling trailers over long distances. Faulty part is on 6 month backorder. No reparations from GM.

- Massillon, OH, USA

The contact owns a 2020 Chevrolet Silverado 2500 HD. The contact stated that while driving at 50 MPH, a warning alarm engaged and advised that there was an emission system issue and the vehicle needed to be serviced within 160 miles. The transmission warning light illuminated. The contact stated that she parked at some point to run an errand and upon restarting the vehicle, a death issue system alarm engaged indicating that the vehicle needed to be repaired within 90 miles. The vehicle was taken to the local dealer where the failure was diagnosed as a dead issue and one of the pins on the wiring harness had burnt and was starting to melt. The local dealer informed the contact that the death tank and wiring harness needed to be replaced; however, the parts for the repair were not available the vehicle was not drivable. The vehicle was not repaired. The manufacturer was notified of the failure and advised the contact the parts for the repair were not available. The vehicle was not repaired. The failure mileage was approximately 20,000.

- Shelburne Falls, MA, USA

Truck on its own Shift from Park to Drive on its own while at idle. Summary: My 2020 Silverado 2500HD was in the driveway idling in Park. The vehicle was empty and I was checking the garage for screws from a project I had just completed and I wanted to make sure they were all picked up before I parked the truck in the garage so that I did not get a flat tire. After looking for screws and assuring myself everything was cleaned I proceeded into the third bay of our garage and right behind me by an inch the truck proceeded into the garage at a good rate of speed and crashed into the house. I quickly ran through the third bay and to the vehicle as it was still wanting to proceed into the house. I quickly shifted it into Reverse from Drive backed up about 2 to 3 feet and placed the truck back into Park again and placed the emergency brake on and shut the truck off...

- Richmond Hill, GA, USA