GMC Terrain: Setting Adaptive Cruise Control / Disengaging ACC

Do Not Use ACC on Hills and When Towing a Trailer

Do not use ACC when driving on steep hills or when towing a trailer. ACC will not detect a vehicle in the lane while driving on steep hills. If the brakes are applied, ACC disengages...

Erasing Speed Memory

The ACC set speed is erased from memory if is pressed or if the ignition is turned off...

Other information:

GMC Terrain 2018-2026 Owners Manual: Exterior

To adjust the mirrors: Press or to choose the driver or passenger mirror. Press the arrows on the control pad to move each mirror in the desired direction. See Power Mirrors...

GMC Terrain 2018-2026 Owners Manual: Memory Seats

If equipped, memory seats allow two drivers to save and recall their unique seat positions for driving the vehicle, and a shared exit position for getting out of the vehicle. Other feature positions may also be saved, such as power mirrors and power steering wheel, if equipped. Memory positions are linked to RKE transmitter 1 or 2 for automatic memory recalls. Before saving, adjust all ..