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 2018-2026 Owners Manual: Compact Spare Tire

Warning Driving with more than one compact spare tire at a time could result in loss of braking and handling. This could lead to a crash and you or others could be injured. Use only one compact spare tire at a time. If this vehicle has a compact spare tire, it was fully inflated when new; however, it can lose air over time...

GMC Terrain 2018-2026 Owners Manual: Raising the Seatback

Warning If either seatback is not locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always push and pull on the seatbacks to be sure they are locked. Warning A seat belt that is improperly routed, not properly attached, or twisted will not provide the protection needed in a crash...