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

The vehicle must be on a level surface when checking the coolant level.

Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level is not at or above the COLD FILL line, add a 50/50 mixture of clean, drinkable water and DEX-COOL coolant at the coolant surge tank, but be sure the cooling system is cool before this is done. See Cooling System on page 10‑15 for more information.

The coolant surge tank is located in the engine compartment on the driver side of the vehicle. See Engine Compartment Overview on page 10‑6 for more information on location.

    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 ...

    How to Add Coolant to the Coolant Surge Tank
    Notice: This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged. If you have not found a problem yet, check t ...

    See also:

    Heater and air conditioner
    - The air conditioner cooling function operates only when the engine is running. - Do not leave children or adults who would normally require the support of others alone in your vehicle. ...

    General maintenance
    During the normal day-to-day operation of the vehicle, general maintenance should be performed regularly as prescribed in this section. If you detect any unusual sounds, vibrations or smell, b ...

    Seat Belt Pretensioner
    The belt for driver seating position is equipped with a retractor pretensioning device, the belt for passenger seating position is equipped with both retractor and buckle pretensioning devices. ...