GMC Terrain: Rear Cross Traffic Alert (RCTA) / Turning the Features On or Off

The GMC Terrain. Turning the Features On or Off button on the center console is used to turn on or off the Front and Rear Park Assist and the Rear Cross Traffic Alert (RCTA). The indicator light in the button comes on when the features are on and turns off when the features have been disabled.

Turn off Park Assist and RCTA when towing a trailer.

RCTA can be turned off through “Collision/Detection Systems” under Vehicle Personalization.

    Rear Cross Traffic Alert (RCTA)

    If equipped, when the vehicle is shifted into R (Reverse), RCTA displays a red warning triangle with a left or right pointing arrow to warn of traffic coming from the left or right...

    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...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Trailer Towing


    General Towing Information Only use towing equipment that has been designed for the vehicle. Contact your dealer or trailering dealer for assistance with preparing the vehicle to tow a trailer. Read the entire section before towing a trailer. To tow a disabled vehicle, see Towing the Vehicle...

    GMC Terrain 2018-2025 Owners Manual: Sunroof


    Sunroof Switch Sunshade Switch If equipped, the sunroof only operates when the ignition is on or in ACC/ACCESSORY, or when Retained Accessory Power (RAP) is active. See Ignition Positions and Retained Accessory Power (RAP). Sunroof Switch Express-Open/Express-Close : To express-open the sunroof, press and release (1)...

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