The contact owns a 2019 Chevrolet Silverado 1500. The contact stated while driving 40 MPH, the vehicle hesitated and jerked. The contact depressed the accelerator pedal, but the vehicle lost motive power. The transmission unexpectedly downshifted, and the power train and check engine warning lights illuminated. The contact pulled over to the side of the road and waited for a while. The contact was able to drive for a short distance before the failure recurred. The contact diagnosed the vehicle and retrieved DTC: P2820 (Pressure Control Solenoid ‘J’ performance/Stuck Off); DTC: P0777 (Pressure Control Solenoid ‘B’ Stuck On). The vehicle was taken to an independent mechanic who diagnosed and confirmed that the valve body needed to be replaced. The contact changed the transmission fluid; however, the vehicle was not repaired. The contact stated that the failure was recurring. The contact parked the vehicle, and the vehicle was no longer driven due to the safety concern. The contact related the failure to NHTSA Campaign Number: 24V797000 (POWER TRAIN); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 154,000.