GMC Terrain: Setting Adaptive Cruise Control / Driving in Narrow Lanes

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...

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...

Other information:

GMC Terrain 2018-2025 Owners Manual: Front Turn Signal Lamps

To replace one of these bulbs: Open the hood. See Hood. Remove the bulb access cap from the top of the headlamp assembly by turning it counterclockwise. Remove the bulb from the bulb socket by pinching the tabs on either side of the bulb and pull straight out...

GMC Terrain 2018-2025 Owners Manual: Scheduling Service Appointments

When the vehicle requires warranty service, contact your dealer and request an appointment. By scheduling a service appointment and advising the service consultant of your transportation needs, your dealer can help minimize your inconvenience. If the vehicle cannot be scheduled into the service department immediately, keep driving it until it can be scheduled for service, unless, of cou..