Buick Regal: Engine Co - Vehicle Checks - Vehicle Care - Buick Regal Owners ManualBuick Regal: Engine Co

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 miles), 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 .

Cooling System
The cooling system allows the engine to maintain the correct working temperature. When it is safe to lift the hood: 2.0 L L4 Engine A. Electric Engine Cooling Fans B. Coolant Surge Tank and Pr ...

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:

Arming the engine immobiliser
The engine immobiliser is armedautomatically a short time after you haveswitched the ignition off. The indicator in the instrument cluster willflash to confirm that the system isoperating. ...

Starting the Engine
Move the shift lever to P (Park) or N (Neutral). The engine will not start in any other position. To restart the engine when the vehicle is already moving, use N (Neutral) only. Notice: Do n ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...