Cadillac 2007 CTS, Owner'S Manual, Page: 360 / 518

Adding Coolant
If you need more coolant, add the proper
DEX-COOL
®
coolant mixture at the surge tank,
but only when the engine is cool.
{
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.
When replacing the 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 342 for more
information on location.
Engine Overheating
There are two engine hot messages that may be
displayed in the Driver Information Center
(DIC). See
DIC Warnings and Messages on
page 228 for more information.
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