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

The coolant level should be at or above the FULL COLD mark when the engine is cold. The coolant level should be above the FULL COLD mark under normal operating conditions. If it is not, you may have a leak in the cooling system.

Check to see if coolant is visible in the coolant recovery tank. If the coolant inside the coolant recovery 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 FULL COLD mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL coolant at the coolant recovery tank, but be sure the cooling system is cool before this is done. See Engine Coolant for more information.