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The ACC indicator will turn white when ACC is no longer active.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

The dome lamp controls are in the overhead console. To operate, press the following buttons: : Press to turn off the dome lamps when a door is open. An indicator light on the button will turn on when the dome lamp override is activated. Press OFF again to deactivate this feature and the indicator light will turn off...

GMC Terrain 2018-2025 Owners Manual: Heated and Ventilated Seats

If equipped, the buttons are on the center console. To operate, the engine must be running. Press or , if equipped, to heat the driver or passenger seatback only. Press or to heat the driver or passenger cushion and seatback. Press or , if equipped, to ventilate the driver or passenger seat...