GMC Terrain: Setting Adaptive Cruise Control / Other Vehicle Lane Changes

Curves in the Road

Warning On curves, ACC may not detect a vehicle ahead in your lane. You could be startled if the vehicle accelerates up to the set speed, especially when following a vehicle exiting or entering exit ramps...

Objects Not Directly in Front of Your Vehicle

The detection of objects in front of the vehicle may not be possible if: The vehicle or object ahead is not within your lane. The vehicle ahead is shifted, not centered, or is shifted to one side of the lane...

Other information:

GMC Terrain 2018-2022 Owners Manual: Vehicle Load Limits

It is very important to know how much weight the vehicle can carry. This weight is called the vehicle capacity weight and includes the weight of all occupants, cargo, and all nonfactory-installed options. Two labels on the vehicle may show how much weight it may properly carry, the Tire and Loading Information label and the Certification/Tire label...

GMC Terrain 2018-2022 Owners Manual: Increasing Speed While ACC Is at a Set Speed

If ACC is already activated, do one of the following: Use the accelerator to get to the higher speed. Press SET–. Release SET– and the accelerator pedal. The vehicle will now cruise at the higher speed.When the accelerator pedal is pressed, ACC will not brake because it is overridden...