Coolant Surge Tank Pressure Cap; Engine Overheating - Cadillac 2007 STS Owner's Manual

CAUTION:
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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.
When replacing a pressure cap, make sure it is
hand-tight and fully seated.

Coolant Surge Tank Pressure Cap

Notice: If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank. See Engine
Compartment Overview on page 373 for more
information on location.

Engine Overheating

There are two engine hot messages that could be
displayed in the Driver Information Center (DIC).
See DIC Warnings and Messages on page 264 for
more information.
If the engine is overheating, then you will find a
coolant temperature gage and a coolant warning
light on the instrument panel. See Engine
Coolant Temperature Gage on page 251 and
Engine Coolant Temperature Warning Light on
page 251 for more information.
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