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 2018-2022 Owners Manual: Hill and Mountain Roads


    Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips include: Keep the vehicle serviced and in good shape. Check all fluid levels and brakes, tires, cooling system, and transmission. Shift to a lower gear when going down steep or long hills...

    GMC Terrain 2018-2022 Owners Manual: Seat Entry Memory


    The vehicle identifies the number of the current driver’s RKE transmitter (1–8). See Remote Keyless Entry (RKE) System Operation. If the RKE transmitter is 1 or 2, and Seat Entry Memory is programmed on in vehicle personalization, the positions saved to the same memory button number 1 or 2 are automatically recalled when the ignition is turned on, or turned from off to ACC/ACCESSORY...

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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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