Black plate (19,1)
Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14

Vehicle Care 10-19

The CAC bottle pressure cap can
be removed when the Charged Air
Coolant cooling system, including
the CAC bottle pressure cap, is no
longer hot.
1. Turnthe pressure cap slowly
counterclockwise and remove it.
2. Fill the CAC bottle with the
proper mixture to the COLD FILL
mark pointed to on the front of
the CAC bottle.
3. Replace the pressure cap tightly.
Engine Overheating
The vehicle has an engine coolant
temperature gauge and an engine
temperature light to warn of engine
overheating.
There are also engine hot
messages that may be displayed in
the Driver Information Center(DIC).
See Engine Cooling System
Messages on page 5-38.
If the decision is made not to lift the
hood when one of these warnings
appears, but get service help right
away.See Roadside Service on
page 13-5.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fans
should be running. If they are not,
do not continue to run the engine
and have the vehicle serviced.
{Caution
Running the engine without
coolant may cause damage or a
fire. Vehicledamage would not be
(Continued)
Caution (Continued)
covered by the vehicle warranty.
See Overheated Engine
Protection Operating Mode on
page 10-20 for information on
driving to a safe place in an
emergency.

If Steam Is Coming from the

Engine Compartment

{Warning
Steam from an overheated engine
can burn you badly,even if you
just open the hood. Stay away
from the engine if you see or hear
steam coming from it. Just turn it
off and get everyone away from
the vehicle until it cools down.
Waituntil there is no sign of
steam or coolant before you open
the hood.
(Continued)