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: Emissions Inspection and Maintenance Programs


If the vehicle requires an Emissions Inspection/Maintenance test, the test equipment will likely connect to the vehicle's Data Link Connector (DLC). The DLC is under the instrument panel to the left of the steering wheel. Connecting devices that are not used to perform an Emissions Inspection/Maintenance test or to service the vehicle may affect vehicle operation...

GMC Terrain 2018-2026 Owners Manual: Engine Air Cleaner/Filter


The engine air cleaner/filter is in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview. When to Inspect the Engine Air Cleaner/Filter For intervals on changing and inspecting the engine air cleaner/filter, see Maintenance Schedule...

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