The power train component, specifically the etorque alternator (MGU) has failed and verified by CDJR dealership service department. My vehicle is available for inspection upon request. The MGU component affects the emissions control of the vehicle and is a generator for a battery cell located in the rear of the cab. The MGU failure could cause damage to the hybrid battery system, electrical failure, and reduction of emissions control. The issue has been replicated by numerous dealerships that I have contacted as the replacement part is on a national back order (dealer representative stated over 5,000). This seems like a substantial problem known by the manufacturer and yet there isnât a repair/replacement option for numerous consumers. There were no warning lamps alerted during the failure. The failure consists of a âwhining❠noise located in the engine compartment at the alternator/MGU and significant reduced fuel economy.