GMC Terrain: Setting Adaptive Cruise Control / ACC Automatically Disengages

GMC Terrain 2018-2025 Owners Manual / Driving and Operating / Cruise Control / 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The ACC indicator will turn white when ACC is no longer active.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

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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: Additional Factors Affecting System Operation

Seat belts help keep the passenger in position on the seat during vehicle maneuvers and braking, which helps the passenger sensing system maintain the passenger airbag status. See “Seat Belts” and “Child Restraints” in the Index for additional information about the importance of proper restraint use...

GMC Terrain 2018-2025 Owners Manual: License Plate Lamp

Lamp Assembly Bulb Assembly Bulb Socket Bulb Lamp Assembly To replace one of these bulbs: Open the liftgate partway. See Liftgate. Push the lamp assembly outboard to remove. Pull the lamp assembly down to remove it from the liftgate. Turn the bulb socket (1) counterclockwise to remove it from the lamp assembly (3)...