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 2018-2022 Owners Manual: Wheel Replacement


    Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks air, replace it. Some aluminum wheels can be repaired. See your dealer if any of these conditions exist...

    GMC Terrain 2018-2022 Owners Manual: Tire Rotation


    Tires should be rotated every 12 000 km (7,500 mi). See Maintenance Schedule. Tires are rotated to achieve a more uniform wear for all tires. The first rotation is the most important. Anytime unusual wear is noticed, rotate the tires as soon as possible, check for proper tire inflation pressure, and check for damaged tires or wheels...

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