GMC Terrain: Cooling System / Engine Coolant

The engine cooling system in the vehicle is filled with DEX-COOL engine coolant mixture. This coolant needs to be checked and changed at appropriate levels. See Recommended Fluids and Lubricants and Maintenance Schedule.

The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating.

    Cooling System

    1.5L Gas Engine Engine Cooling Fan (Out of View) Engine Coolant Surge Tank and Pressure Cap 1.6L Diesel Engine Engine Cooling Fan (Out of View) Engine Coolant Surge Tank and Pressure Cap 2...

    What to Use

    Warning Plain water, or other liquids such as alcohol, can boil before the proper coolant mixture will. With plain water or the wrong mixture, the engine could get too hot but there would not be an overheat warning...

    Other information:

    GMC Terrain 2018-2023 Owners Manual: Exterior Care


    Locks Locks are lubricated at the factory. Use a de-icing agent only when absolutely necessary, and have the locks greased after using. See Recommended Fluids and Lubricants. Washing the Vehicle To preserve the vehicle's finish, wash it often and out of direct sunlight...

    GMC Terrain 2018-2023 Owners Manual: Speedometer, Odometer, Trip Odometer and Tachometer


    Speedometer The speedometer shows the vehicle's speed in either kilometers per hour (km/h) or miles per hour (mph). Odometer The odometer shows how far the vehicle has been driven, in either kilometers or miles. Trip Odometer The trip odometer shows how far the vehicle has been driven since the trip odometer was last reset...

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