Transmission Fault Status

If the TCM detects a fault with the transmission system, it will enter a default (limp home) mode to prevent further damage to the transmission and allow the vehicle to be driven. If possible reverse gear will be available and also 3rd gear only.

When a fault is detected a high speed CAN message is sent from the TCM and is received by the instrument cluster. The instrument cluster illuminates the MIL (if required) and displays an applicable message in the message center. Refer to Information and Message Center .

Some transmission faults may not illuminate the MIL or display a fault message, but the driver may notice a reduction in shift quality.