U135A

CHEVROLET

This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated and/or Driver Information Center (DIC) Displays Service Transmission Now, Unable to Shift Soon or Service Transmission, Unable to Shift Message with DTC U1345 or U135A Set.

CHEVROLET

This service bulletin provides repair information to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated and/or Driver Information Center (DIC) Displays Service Transmission Now, Unable to Shift Soon or Service Transmission, Unable to Shift Message with DTC U1345 or U135A Set.

CHEVROLET

This Preliminary information communicates to the dealer if a vehicle comes in for an MIL or a message with DTC U1345 Engine Control Module LIN Bus 1 (or Bus 21) and/or DTC U135A that engineering is working on the issue and to clear the codes and return to the customer, Mil and message still may be one but at that time will drive…