GMC Terrain: Setting Adaptive Cruise Control / Do Not Use ACC on Hills and When Towing a Trailer

Driving in Narrow Lanes

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Disengaging ACC

There are three ways to disengage ACC: Step lightly on the brake pedal. Press . Press . ..

Other information:

GMC Terrain 2018-2025 Owners Manual: Diesel Exhaust Fluid

Diesel Exhaust Fluid (DEF) is used with diesel engines to reduce the amount of regulated emissions produced. The DEF system must be maintained for the vehicle to run properly. It is normal to hear the DEF system purge fluid back into the tank after the vehicle is shut off. Locating Diesel Exhaust Fluid DEF can be purchased at a GMC dealer. It can also be purchased at authorized vehicle de..

GMC Terrain 2018-2025 Owners Manual: Antilock Brake System (ABS) Warning Light

For vehicles with the Antilock Brake System (ABS), this light comes on briefly when the engine is started. If the light does not come on, have it fixed so it will be ready to warn if there is a problem. If the ABS light comes on and stays on while driving, stop as soon as possible and turn the ignition off. Start the engine again to reset the system. If the light stays on after driving a..