GMC Terrain: Setting Cruise Control / Ending Cruise Control

Using Cruise Control on Hills

How well the cruise control works on hills depends upon the vehicle speed, load, and the steepness of the hills. When going up steep hills, you might have to step on the accelerator pedal to maintain the vehicle speed...

Erasing Speed Memory

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

Other information:

GMC Terrain 2018-2025 Owners Manual: Weather Conditions Affecting ACC

If the interior temperature is extremely high, the instrument cluster may indicate that ACC is temporarily unavailable. This can be caused by extreme hot weather conditions with direct sunlight on the front camera. ACC will return to normal operation once the cabin temperature is lower. Conditions that are associated with low visibility, such as fog, rain, snow, or road spray, may limit ..

GMC Terrain 2018-2025 Owners Manual: Cruise Control Light

The cruise control light is white when the cruise control is on and ready, and turns green when the cruise control is set and active. See Cruise Control. Adaptive Cruise Control Light This light is white when the Adaptive Cruise Control (ACC, if equipped) is on and ready, and turns green when the ACC is set and active. See Adaptive Cruise Control...