The contact owns a 2017 Chevrolet Colorado. The contact stated while driving at an undisclosed speed, the transmission converter clutch was shuddering. The contact stated that the failure persisted. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed that the torque converter and a fluid change were needed. The vehicle was not repaired. The manufacturer was contacted and offered to assist with the cost of the repair. The failure mileage was approximately 38,000.