This is regarding 24V797. A software update to "monitor" for transmission valve failure is not a resolution to a problem that could pose a sever risk to my safety on a very expensive truck.

- Lakeland, MN, USA

While towing my 5th wheel rv trailer, the rear wheels locked up numerous times while at highway speeds(60-70mph). Hope our didn't cause any internal/ structural damage to my trailer. Scheduled a service with the dealer(Gamblins Chevrolet, Enumclaw, WA) for them to diagnose. The dealer found no issue or cause. Left the dealer for the same thing to occur the following week. Brought back to the dealer for this issue and others to determine the torque converter had failed, dealer replaced converter, at a later date rear wheels locked up at highway speeds again. Been ongoing with no solution.

- Buckley, WA, USA

The contact owns a 2021 Chevrolet Silverado 3500. The contact stated while driving at approximately 45 MPH, the brake pedal was depressed and extended to the floorboard, and the vehicle almost crashed into the rear of another vehicle. The contact later discovered that the rear driver-??s side brake pad had been ejected from the vehicle. The vehicle was taken to the local mechanic who was unable to determine the cause of the failure. Additionally, the contact stated that the transmission erroneously shifted out of 4-WD while driving. The contact stated that the failure had occurred on several occasions. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 49,000. The VIN was not available.

- Sterling, AK, USA

July 20, we were driving the 2021 3500HD to church w/our single axle trailer w/mower on it when we were stopped at a yield sign and proceeded to pull forward, our truck made a loud boom noise and immediately stopped. Warning lights on the dash began coming on, when the gas pedal was pressed it made a loud RPM sound of engine revving, following by barely coasting action. We were able to drift into the turn lane & get out of danger. We had to be towed to Capital Chevrolet bc something isn't functioning properly. Dealership said they believe it's transmission related and the power train warranty should cover repairs needed. We have tow receipt and gas receipts for rental vehicle.

- Raleigh, NC, USA

When I shift the vehicle to park and turn it off, about 90% of the time the instrument panel will display a message that says -??Shift to park-??, and the electrical components will not shut down. The vehicle is in park, but the computer won-??t detect it. I took it to dealer while under warranty, and dealer simply stated that it wasn-??t happening. It continues to happen, and I fear that it it won-??t shift into park later. As is, sometimes it takes an hour or more to detect that the vehicle is in park. I fear that it will cause a dead battery and leave me stranded. I don-??t know if this is a computer issue or a transmission issue. It has been ongoing for at least 10 months. Vehicle was dropped off for repair at dealer in December, 2022, but no repair was performed.

- Fort Collins, CO, USA

Was driving my 3500 (an 8000# truck capable of towing 20k#) and suddenly the vehicle lost power and steering, forcing me to the shoulder of a curvy mountain road, going downhill. Truck then started blinking lights and telling me to restart. upon restart, the truck would not engage the transmission. Truck was in drive but the motor was just rev'ing. I turned truck off and then back on and it seemed to return to normal. Am not comfortable driving truck at this time. GM has been notified of the issue, and, has not diagnosed an issue, as of this writing.

- West Jefferson, NC, USA