Automatic Transaxle/Transmission - 6R80

Diagnostic Trouble Code (DTC) Charts





Using a scan tool to retrieve DTCs, begin with and repair all non-transmission related DTCs. Start with the U-DTCs (communication link codes) and repair any transmission related DTCs.

Limp-home mode is a default condition to protect the engine and transmission when a fault occurs. Limp-home mode depends on the actual gear the vehicle was in when the fault has occurred.

- For gears 1-3, the limp-home default is 3rd gear.

- For gears 4-6, the limp-home default is 5th gear.

The limp-home gear is held until the vehicle is placed in REVERSE, PARK or the vehicle is restarted. After these action(s) the vehicle defaults to the limp-home mode of 3rd gear.

DTC Chart