The contact owns a 2021 GMC Acadia. The contact stated that while driving approximately 30-60 MPH, the vehicle started shuddering inadvertently. There were no warning lights illuminated. The contact stated that he continued to drive the vehicle. The contact stated that the failure reoccurred while driving and the vehicle stalled. The contact was unable to restart the vehicle after several attempts. The vehicle was towed to the dealer who diagnosed that the transmission fluid needed to be replaced per the service bulletin #PIP5608H; however, the failure persisted. The dealer advised the contact to drive the vehicle for 200 miles and bring it back if the failure reoccurred. The contact stated that the vehicle continued to shudder and stall while driving. The vehicle was taken back to the dealer who diagnosed that the transmission torque converter needed to be replaced. The manufacturer was notified of the failure. The vehicle was repaired. The approximate failure mileage was 4,100.

- Crowley, TX, USA