GMC Terrain: Driver Assistance Systems / 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. This system detects objects coming from up to 20m (65 ft) from the left or right side of the vehicle. When an object is detected, either three beeps sound from the left or right or three Safety Alert Seat pulses occur on the left or right side, depending on the direction of the detected vehicle.

Use caution while backing up when towing a trailer, as the RCTA detection zones that extend out from the back of the vehicle do not move further back when a trailer is towed.

Park Assist

With RPA, and if equipped with FPA, as the vehicle moves at speeds of less than 8 km/h (5 mph), the sensors on the bumpers may detect objects up to 2...

Turning the Features On or Off

The 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...

Other information:

GMC Terrain 2018-2026 Owners Manual: Automatic Dimming Mirror and Reverse Tilt Mirrors


Automatic Dimming Mirror The vehicle has an automatic dimming outside mirror on the driver side. The mirror will adjust for the glare of headlamps behind you. Reverse Tilt Mirrors If equipped with memory seats, the passenger and/or driver mirror tilts to a preselected position when the vehicle is in R (Reverse), if enabled...

GMC Terrain 2018-2026 Owners Manual: Driver Information Center (DIC) (Base and Midlevel)


The DIC displays are shown in the center of the instrument cluster in the Info app. See Instrument Cluster (Base and Midlevel) or Instrument Cluster (Uplevel). The displays show the status of many vehicle systems. The controls for the DIC are on the right steering wheel control...

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    Tire Pressure Light

    GMC Terrain. Tire Pressure Light

    For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS.

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