NHTSA Complaint #11693964 — 2021 CHEVROLET MALIBU

The contact owns a 2021 Chevrolet Malibu. The contact stated that while driving at an undisclosed speed and attempting to accelerate after a stop, the vehicle failed to accelerate as intended while depressing the accelerator pedal. In addition, the transmission unexpectedly downshifted before slamming into gear. The contact stated that when the vehicle slammed into gear, the contact was violently pushed into the back of the seat. No warning lights were illuminated, but the message “Shift to Park” was displayed on the instrument panel. The contact stated that during the failure, the brake pedal was depressed to reboot, and the contact had to manually move the leather cover on the shift lever to move the lever. The contact stated that whenever the temperature on the transmission was at 180 degrees, the transmission would downshift. The vehicle was taken to several dealers; however, the dealers were unable to replicate that failure. The solenoid valve was replaced on the vehicle; however, the failure persisted. The contact related the failures to Technical Service Bulletin: PIP5819B. The manufacturer was informed of the failure. The failure mileage was approximately 6,300.