GMC Terrain: Setting Adaptive Cruise Control / ACC Automatically Disengages

GMC Terrain 2018-2026 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The ACC indicator will turn white when ACC is no longer active.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

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 2018-2026 Owners Manual: Headlamp High/Low-Beam Changer anf Flash-to-Pass

Headlamp High/Low-Beam Changer Push the turn signal lever away from you and release, to turn the high beams on. To return to low beams, push the lever again or pull it toward you and release. This indicator light turns on in the instrument cluster when the high-beam headlamps are on...

GMC Terrain 2018-2026 Owners Manual: Sunroof

Sunroof Switch Sunshade Switch If equipped, the sunroof only operates when the ignition is on or in ACC/ACCESSORY, or when Retained Accessory Power (RAP) is active. See Ignition Positions and Retained Accessory Power (RAP). Sunroof Switch Express-Open/Express-Close : To express-open the sunroof, press and release (1)...