Cooling System; Engine Coolant - Cadillac CTS 2013 Owner's Manual

10-16 Vehicle Care
Notice: If the air cleaner/filter is
off, dirt can easily get into the
engine, which could damage it.
Always have the air cleaner/filter
in place when you are driving.

Cooling System

The cooling system allows the
engine to maintain the correct
working temperature.
3.6L V6 Shown, 3.0L V6 Engine
and 6.2L V8 Engine Similar
1. Engine Cooling Fan(s) (Out
of View)
2. Coolant Surge Tank and
Pressure Cap
WARNING
An electric engine cooling fan
under the bonnet can start up
even when the engine is not
running and can cause injury.
Keep hands, clothing, and tools
away from any underbonnet
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, at 50 000 km
(30,000 mi) or 24 months,
whichever occurs first. Any
repairs would not be covered by
the vehicle warranty. Always use
DEX-COOL (silicate-free) coolant
in the vehicle.

Engine Coolant

The cooling system in the vehicle
for all engines and the intercooler is
filled with DEX-COOL®. This
coolant is designed to remain in the
vehicle for 5 years or 240 000 km
(150,000 mi), 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 on
page 10 21.