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 2018-2026 Owners Manual: Automatic Reversal System


    The sunroof has an automatic reversal system that is only active when the sunroof is operated in express-close mode. If an object is in the path while express closing, the reversal system will detect an object, stop, and open the sunroof again. If frost or other conditions prevent closing, override the feature by closing the sunroof in manual mode...

    GMC Terrain 2018-2026 Owners Manual: Forward Automatic Braking (FAB)


    If the vehicle has Forward Collision Alert (FCA), it also has FAB, which includes Intelligent Brake Assist (IBA). When the system detects a vehicle ahead in your path that is traveling in the same direction that you may be about to crash into, it can provide a boost to braking or automatically brake the vehicle...

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      Vehicle Messages

      Messages displayed on the DIC indicate the status of the vehicle or some action that may be needed to correct a condition. Multiple messages may appear one after another.

      The messages that do not require immediate action can be acknowledged and cleared by pressing V. The messages that require immediate action cannot be cleared until that action is performed.

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