GMC Terrain: Engine Coolant - Vehicle Checks - Vehicle Care - GMC Terrain Owner's ManualGMC Terrain: Engine Coolant

The cooling system in the vehicle is filled with DEX-COOLВ® engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first.

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 on page 10‑20.

Cooling System
2.4L L4 Engine A. Engine Cooling Fan (Out of View) B. Engine Coolant Surge Tank and Pressure Cap 3.0L V6 Engine A. Engine Cooling Fans (Out of View) B. Engine Coolant Surge Tank and Pressure ...

What to Use
WARNING Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warning sy ...

See also:

Starting the Engine Using Remote Start
To start the engine using the remote start feature: 1. Press and release on the RKE transmitter. 2. Press and hold for about two seconds. The turn signal lamps will briefly flash to confirm th ...

Conditions affecting operation
The smart key system uses weak radio waves. In the following situations, the communication between the electronic key and the vehicle may be affected, preventing the smart key system and wireless re ...

Recirculation with pollution and humidity sensing
- Press the AUTO button briefly to activate timed recirculation. The AUTO LED will illuminate. The system automatically selects fresh and recirculated air dependent on pollution and cabin humidit ...