GMC Terrain: Setting Adaptive Cruise Control / ACC Automatically Disengages

ACC may automatically disengage and the driver will need to manually apply the brakes to slow the vehicle if:

• The front camera is blocked or visibility is reduced.
• The Traction Control System (TCS) or StabiliTrak/ESC system has activated or been disabled.
• There is a fault in the system.
• A DIC message displays to indicate that ACC is temporarily unavailable.

The ACC indicator will turn white when ACC is no longer active.

In some cases, when ACC is temporarily unavailable, regular cruise control may be used. See “Switching Between ACC and Regular Cruise Control” in this section. Always consider driving conditions before using either cruise control system.