DTC U2108: Adaptive Cruise Control: Action

The ABS module monitors vehicle deceleration during adaptive cruise control braking events to prevent an over-braking situation. This DTC sets when vehicle deceleration is greater than 3.2 meters per second. This is most likely caused by an abrupt stop of the vehicle due to a collision, an extreme driving situation, a mechanical or electrical failure of the adaptive cruise control system or an internal failure of the ABS module. RETRIEVE and REPAIR all other ABS module DTCs before diagnosing DTC U2108:68. If no other ABS module DTCs are present, RETRIEVE and REPAIR all DTCs in the CCM. REFER to the appropriate Cruise Control article. If there are no DTCs in the CCM, INSPECT the vehicle braking system for a dragging condition or another condition that may cause rapid vehicle deceleration.