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The ACC indicator will turn white when ACC is no longer active.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

    Irregular Objects Affecting ACC

    A..

    Notification to Resume ACC

    ACC will maintain a follow gap behind a detected vehicle and slow your vehicle to a stop behind that vehicle. If the stopped vehicle ahead has driven away and ACC has not resumed, the vehicle ahead indicator will flash as a reminder to check traffic ahead before proceeding...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Instrument Cluster (Base and Midlevel)


    Base Level English Shown, Metric Similar Midlevel English Shown, Metric Similar Cluster Menu (Midlevel) There is an interactive display area in the center of the instrument cluster. Use the right steering wheel control to open and scroll through the different items and displays...

    GMC Terrain 2018-2025 Owners Manual: Front Turn Signal Lamps


    To replace one of these bulbs: Open the hood. See Hood. Remove the bulb access cap from the top of the headlamp assembly by turning it counterclockwise. Remove the bulb from the bulb socket by pinching the tabs on either side of the bulb and pull straight out...

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