GMC Terrain: Setting Adaptive Cruise Control / Accessory Installations and Vehicle Modifications

Do not install or place any object around the front camera windshield area that would obstruct the front camera view.

Do not install objects on top of the vehicle that overhang and obstruct the front camera, such as a canoe, kayak, or other items that can be transported on a roof rack system. See Roof Rack System.

Do not modify the hood, headlamps, or fog lamps, as this may limit the camera’s ability to detect an object.

    Lighting Conditions Affecting ACC

    The ACC front camera can be affected by poor lighting conditions, and ACC may have limited performance when: There are changes in brightness, such as entering and exiting tunnels, bridges, and overpasses...

    Cleaning the Sensing System

    The camera sensor on the windshield behind the rearview mirror can become blocked by snow, ice, dirt, mud, or debris. This area needs to be cleaned for ACC to operate properly...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Automatic Parking Assist (APA)


    If equipped, APA searches for and steers the vehicle into parallel and perpendicular parking spots. When using APA, you must still shift gears, and control the brakes and accelerator. A display and audible beeps help to guide parking maneuvers...

    GMC Terrain 2018-2025 Owners Manual: Infotainment System and Cruise Control


    Infotainment System See the infotainment manual for information on the radio, audio players, phone, navigation system, and voice or speech recognition. It also includes information on settings. Steering Wheel Controls The infotainment system can be operated by using the steering wheel controls...

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