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 2018-2021 Owners Manual: Power Liftgate Operation

Warning You or others could be injured if caught in the path of the power liftgate. Make sure there is no one in the way of the liftgate as it is opening and closing. Caution To avoid damage to the liftgate or liftgate glass, make sure the area above and behind the liftgate is clear before opening it. If equipped with a power liftgate, the switch is usually on the driver door. The switch..

GMC Terrain 2018-2021 Owners Manual: If the On Indicator Is Lit for a Child Restraint

The passenger sensing system is designed to turn off the front outboard passenger frontal airbag if the system determines that an infant is present in a child restraint. If a child restraint has been installed and the ON indicator is lit: Turn the vehicle off. Remove the child restraint from the vehicle. Remove any additional items from the seat such as blankets, cushions, seat cov..