Buick LaCrosse: Cooling System - Vehicle Checks - Vehicle Care - Buick LaCrosse Owners ManualBuick LaCrosse: Cooling System

The cooling system allows the engine to maintain the correct working temperature.

When it is safe to lift the hood:

2.4L L4 Engine

2.4L L4 Engine
2.4L L4 Engine

A. Engine Cooling Fans (Out of View)
B. Coolant Surge Tank and Pressure Cap

3.6L V6 Engine

3.6L V6 Engine
3.6L V6 Engine

A. Engine Cooling Fans (Out of View)
B. Coolant Surge Tank and Pressure Cap

WARNING!
An electric engine cooling fan under the hood can start up even when the engine is not running and can cause injury. Keep hands, clothing, and tools away from any underhood electric fan.

WARNING!
Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned.
Do not run the engine if there is a leak. If you run the engine, it could lose all coolant. That could cause an engine fire, and you could be burned. Get any leak fixed before you drive the vehicle.

Notice:
Using coolant other than DEX-COOL® can cause premature engine, heater core, or radiator corrosion. In addition, the engine coolant could require changing sooner. Any repairs would not be covered by the vehicle warranty.
Always use DEX-COOL (silicate-free) coolant in the vehicle.

    3.6L V6 Engine
    3.6L V6 Engine 1. Remove the screws on top of the engine air cleaner/filter housing. 2. Lift the filter cover housing away from the engine. 3. Pull out the filter. 4. Inspect or replace th ...

    Engine Coolant
    The cooling system in the vehicle is filled with DEX-COOL® engine coolant mixture. See Recommended Fluids and Lubricants and Maintenance Schedule for more information. The following explains ...

    See also:

    MMT
    Some gasoline contains an octane-enhancing additive called MMT (Methylcyclopentadienyl Manganese Tricarbonyl). If you use such fuels, your emission control system performance may deteriorate and t ...

    Dynamic Drive
    The concept Dynamic Drive reduces the lateral inclination of the vehicle that occurs during rapid driving in curves or during quick evasive maneuvers. Driving stability and driving comfort are i ...

    Warnings and cautions
    This Owner’s Manual contains WARNINGS against operatingprocedures that could result in an accident orbodily injury. It also contains CAUTIONS against proceduresthat could result in damage to you ...