Cadillac XTS Owner Manual (GMNA-Localizing-U.S/Canada-9234768) -
2016 - crc - 5/19/15
256
Vehicle Care
3.6L V6 Engine Twin Turbo
1. Electric Engine Cooling
Fans (Out of View)
2. Charged Air Coolant (CAC)
Bottle and Pressure Cap
3. 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.
Caution
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.
Engine Coolant
The engine and Charged Air
Coolant (CAC) cooling systems in
the vehicle are filled with
DEX-COOL
®
engine coolant
mixture. See
Recommended Fluids
and Lubricants
0
339
and
Maintenance Schedule
0
330
.
The following explains the cooling
systems and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see
Engine Overheating
0
259
.
What to Use
{
Warning
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
(Continued)