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The ACC indicator will turn white when ACC is no longer active.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 2018-2022 Owners Manual: Exhaust Fluid Low


    A full DEF tank will last for several thousand kilometers (miles), depending on vehicle usage. As the exhaust fluid level drops, warnings will automatically be displayed in the DIC. Exhaust fluid level status is available in the DIC. See “Diesel Exhaust Fluid (DEF) Level (Diesel Engine Only)” in Driver Information Center (DIC) (Base and Midlevel) or Driver Information Center (DIC) (U..

    GMC Terrain 2018-2022 Owners Manual: Windows


    Warning Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke. The vehicle aerodynamics are designed to improve fuel economy performance. This may result in a pulsing sound when either rear window is down and the ..

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