Buick 2007 LaCrosse Owner's Manual page 377

How to Add Coolant to the Cooling
System (3.6L V6 Engine)
Notice: Your engine has a specific cooling
system drain and fill procedure. Failure
to follow this procedure could cause your
engine to overheat and be severely damaged.
If your engine's cooling system needs to
be drained and re-filled, please see your dealer.
Turn the pressure cap slowly counterclockwise.
If you hear a hiss, wait for that to stop. A hiss
means that there is still some pressure left.
2. Then keep turning the pressure cap and
remove it.
1. You can remove the
pressure cap when
the cooling system,
including the
pressure cap and
upper radiator hose
is no longer hot.
CAUTION:
{
You can be burned if you spill coolant
on hot engine parts. Coolant contains
ethylene glycol and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
3. Fill the cooling system with the proper
®
DEX-COOL coolant mixture, up to the base
of the filler neck. See Engine Coolant on
page 363 for more information about
the proper coolant mixture.
4. Rinse or wipe any spilled coolant from the
engine and the compartment.
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