air conditioning CADILLAC XTS 2019 Owner's Manual

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
INTRODUCTION 3
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do Not,”
“Do not do this,” or“Do not let this
happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with the text describing the operation or
information relating to a specific
component, control, message, gauge,
or indicator.
M:
Shown when the owner’s manual
has additional instructions or
information.
*: Shown when the service manual
has additional instructions or
information.
0: Shown when there is more
information on another page —
“see page.”
Vehicle Symbol Chart
Here are some additional symbols that
may be found on the vehicle and what
they mean. See the features in this
manual for information.
u: Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components
Properly
P: Do Not Apply High Pressure
Water
B: Engine Coolant Temperature
_:Flame/Fire Prohibited
H: Flammable
[:Forward Collision Alert
R: Fuse Block Cover Lock Location
+:Fuses
j:ISOFIX/LATCH System Child
Restraints
Q: Keep Fuse Block Covers Properly
Installed
|: Lane Change Alert
@:Lane Departure Warning
A:Lane Keep Assist
*:Malfunction Indicator Lamp
::Oil Pressure
X:Park Assist
~:Pedestrian Ahead Indicator
O:Power
7: Rear Cross Traffic Alert
I:Registered Technician

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
IN BRIEF 17
Climate Control Display
1. Climate Control Selection (Application Tray Button)
2. Driver and Passenger Temperature Controls
3. Fan Control
4. REAR (Rear Climate Control Display)
5. Sync (Synchronized Temperature)
6. Outside Temperature Display
7. Air Delivery Mode Control
8. A/C (Air Conditioning) See
Dual Automatic Climate Control
System 0163 and Rear Climate Control
System 0168, if equipped.
Transmission
Tap Shift
Tap Shift allows the driver to
manually control the automatic
transmission. To use Tap Shift, the
shift lever must be in M (Manual
Mode). If equipped, the controls are
on the back of the steering wheel. Tap
the left control to downshift, and the
right control to upshift. A Driver
Information Center (DIC) message
indicates the gear the vehicle is in.
See Manual Mode 0193.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
164 CLIMATE CONTROLS
Climate Control Display
1. Climate Control Selection(Application Tray Button)
2. Driver and Passenger Temperature Controls
3. Fan Control
4. REAR (Rear Climate Control Display)
5. Sync (Synchronized Temperature)
6. Outside Temperature Display
7. Air Delivery Mode Control
8. A/C (Air Conditioning) The fan, air delivery mode, air
conditioning, driver and passenger
temperatures, and Sync settings can
be controlled by touching CLIMATE
on the infotainment Home Page or the
climate button in the climate control
display application tray. A selection
can then be made on the front climate
control page displayed. See the
infotainment manual.
Climate Control Status Display
The climate control status display
appears briefly when the climate
control buttons on the center stack
are adjusted. Pressing the status
display will open the climate control
display.
Automatic Operation
The system automatically controls the
fan speed, air delivery, air
conditioning, and recirculation in
order to heat or cool the vehicle to the
desired temperature.
When AUTO is lit, all four functions
operate automatically. Each function
can also be manually set and the
setting is displayed. Functions not
manually set will continue to be
automatically controlled, even if the
AUTO indicator is not lit.
For automatic operation:
1. Press AUTO.
2. Set the temperature. Allow the system time to stabilize. Then
adjust the temperature as needed
for best comfort.
To cool the vehicle faster,
recirculation may be automatically
selected in warm weather. The

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
CLIMATE CONTROLS 165
recirculation light will not come on.
Press
@to select recirculation; press
it again to select outside air.
English units can be changed to
metric units through the instrument
cluster. See “Cluster Options Menu ”
under Instrument Cluster 0121.
OFF : Press to turn the fan on or off.
When off, no air will flow into the
vehicle. Turning the fan on,
or pressing any other button, will turn
the system back on using the current
setting. The temperature control and
air delivery mode can still be adjusted.
w/x: The temperature can be
adjusted separately for the driver and
the passenger. Press to increase or
decrease the temperature. Press and
hold to rapidly increase or decrease
the temperature.
The driver and passenger
temperatures can also be adjusted by
touching the controls on the display.
Sync : Touch Sync on the display to
link all climate zone settings to the
driver settings. Adjust the driver side
temperature control to change the linked temperature. When the
passenger settings are adjusted, the
Sync button is no longer highlighted.
REAR :
If equipped, touch REAR on
the front climate control display to
open the rear climate control display.
The rear climate control settings can
now be adjusted from the front
passenger area.
Manual Operation
z 9 y: Press the fan control
buttons or the climate display fan
control to increase or decrease the fan
speed. Press and hold the buttons or
the climate display control to adjust
the speed more quickly. The fan speed
setting displays. Pressing either button
cancels automatic fan control and the
fan can be controlled manually. Press
AUTO to return to automatic
operation. To turn off the fan and
climate control system, press and hold
the fan down button or climate
display fan control until it is off.
Air Delivery Mode Control : When
the climate information is displayed,
touch the desired air delivery mode on
the display to change the direction of the airf low. The selected air delivery
mode button is lit. Touching any of
the air delivery modes cancels
automatic air delivery control and the
direction of the airflow can be
controlled manually. Press AUTO to
return to automatic operation.
To change the current mode, select
one of the following:
Y:
Air is directed to the instrument
panel outlets.
\: Air is divided between the
instrument panel outlets and the floor
outlets.
[: Air is directed to the floor
outlets.
-: Clears the windows of fog or
moisture. Air is directed to the
windshield and floor outlets.
0: Clears the windshield of fog or
frost more quickly. Air is directed to
the windshield. Press
0to turn on or
off. Changing the air delivery mode
also turns the defrost off.
A/C : Touch A/C on the display to
turn the automatic air conditioning on
or off. If the fan is turned off or the

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
170 CLIMATE CONTROLS
Move the slider knobs (2) to change
the direction of the airf low.
Additional air vents are beneath the
windshield and the driver and
passenger side door windows. These
are fixed and cannot be adjusted.Operation Tips
.
Clear away any ice, snow, or leaves
from air inlets at the base of the
windshield that could block the
flow of air into the vehicle.
. Clear snow off the hood to
improve visibility and help
decrease moisture drawn into the
vehicle.
. Keep the path under the front
seats clear of objects to help
circulate the air inside of the
vehicle more effectively.
. Use of non-GM approved hood
deflectors can adversely affect the
performance of the system. Check
with your dealer before adding
equipment to the outside of the
vehicle.
. Do not attach any devices to the
air vent slats. This restricts airflow
and may cause damage to the air
vents.
Maintenance
Passenger Compartment
Air Filter
The filter reduces dust, pollen, and
other airborne irritants from outside
air that is pulled into the vehicle. The
filter should be replaced as part of
routine scheduled maintenance. See
Maintenance Schedule 0322.
See your dealer regarding replacement
of the filter.
Service
All vehicles have a label underhood
that identifies the refrigerant used in
the vehicle. The refrigerant system
should only be serviced by trained and
certified technicians. The air
conditioning evaporator should never
be repaired or replaced by one from a
salvage vehicle. It should only be
replaced by a new evaporator to
ensure proper and safe operation.
During service, all refrigerants should
be reclaimed with proper equipment.
Venting refrigerants directly to the

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
CLIMATE CONTROLS 171
atmosphere is harmful to the
environment and may also create
unsafe conditions based on inhalation,
combustion, frostbite, or other
health-based concerns.
The air conditioning system requires
periodic maintenance. See
Maintenance Schedule0322.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
254 VEHICLE CARE
Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all coolant
and can damage the system and
vehicle. Have any leaks fixed
right away.
If Steam Is Coming from the
Engine Compartment
{Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure cap,
even a little, can cause them to
come out at high speed and you
could be burned. Never turn the cap
when the cooling system, including
the pressure cap, is hot. Wait for
the cooling system and pressure
cap to cool.
If No Steam Is Coming from the
Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen or
heard, the problem may not be too
serious. Sometimes the engine can get
a little too hot when the vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
. Tows a trailer.
If the overheat warning is displayed
with no sign of steam: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the highest
fan speed. Open the windows as
necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the temperature overheat gauge is
no longer in the overheat zone or an
overheat warning no longer displays,
the vehicle can be driven. Continue to drive the vehicle slow for about
10 minutes. Keep a safe vehicle
distance from the car in front of you.
If the warning does not come back on,
continue to drive normally and have
the cooling system checked for proper
fill and function.
If the warning continues, pull over,
stop, and park the vehicle right away.
If there is no sign of steam, idle the
engine for three minutes while parked.
If the warning is still displayed, turn
off the engine until it cools down.
Also, see
“Overheated Engine
Protection Operating Mode ”next in
this section.
Overheated Engine
Protection Operating Mode
This emergency operating mode
allows the vehicle to be driven to a
safe place in an emergency situation.
If an overheated engine condition
exists, an overheat protection mode,
which alternates firing groups of
cylinders, helps prevent engine

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
VEHICLE CARE 277
diagonal or bias ply construction;
and the letter B means belted-bias
ply construction.
(5) Rim Diameter
:Diameter of
the wheel in inches.
(6) Service Description
:These
characters represent the load
index and speed rating of the tire.
The load index represents the load
carrying capacity a tire is certified
to carry. The speed rating is the
maximum speed a tire is certified
to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of air
inside the tire pressing outward
on each square inch of the tire.
Air pressure is expressed in kPa
(kilopascal) or psi (pounds per
square inch).
Accessory Weight
:The combined
weight of optional accessories.
Some examples of optional accessories are automatic
transmission, power windows,
power seats, and air conditioning.
Aspect Ratio
:The relationship of
a tire's height to its width.
Belt
:A rubber coated layer of
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials.
Bead
:The tire bead contains steel
wires wrapped by steel cords that
hold the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in
which the plies are laid at
alternate angles less than
90 degrees to the centerline of the
tread.
Cold Tire Pressure
:The amount
of air pressure in a tire, measured
in kPa (kilopascal) or psi (pounds
per square inch) before a tire has
built up heat from driving. See
Tire Pressure 0279. Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil, and
coolant, but without passengers
and cargo.
DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) Motor Vehicle Safety
Standards. The DOT code includes
the Tire Identification Number
(TIN), an alphanumeric designator
which can also identify the tire
manufacturer, production plant,
brand, and date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
0 179.
GAWR FRT
:Gross Axle Weight
Rating for the front axle. See
Vehicle Load Limits 0179.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
SERVICE AND MAINTENANCE 323
is reset accidentally, service the
vehicle within 5 000 km/3,000 mi since
the last service. Reset the oil life
system when the oil is changed. See
Engine Oil Life System0246.
Air Conditioning Desiccant
(Replace Every Seven Years)
The air conditioning system requires
maintenance every seven years. This
service requires replacement of the
desiccant to help the longevity and
efficient operation of the air
conditioning system. This service can
be complex. See your dealer.
Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the following
services. See Tire Rotation0285.
. Check engine oil level and oil
life percentage. If needed, change
engine oil and filter, and reset oil
life system.
See Engine Oil 0244 and Engine Oil
Life System 0246. .
Check engine coolant level. See
Cooling System 0250.
. Check windshield washer fluid
level. See Washer Fluid 0256.
. Check tire inflation pressures. See
Tire Pressure 0279.
. Inspect tire wear. See Tire
Inspection 0285.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter 0248.
. Inspect brake system. See Exterior
Care 0312.
. Visually inspect steering,
suspension, and chassis
components for damage, including
cracks or tears in the rubber boots,
loose or missing parts, or signs of
wear at least once a year. See
Exterior Care 0312.
. Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc. .
Visually inspect halfshafts and
drive shafts for excessive wear,
lubricant leaks, and/or damage
including: tube dents or cracks,
constant velocity joint or universal
joint looseness, cracked or missing
boots, loose or missing boot
clamps, center bearing excessive
looseness, loose or missing
fasteners, and axle seal leaks.
. Check restraint system
components. See Safety System
Check 075.
. Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for loose
or damaged parts.
. Lubricate body components. See
Exterior Care 0312.
. Check starter switch. See Starter
Switch Check 0259.

Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-12032610) -
2019 - crc - 8/22/18
SERVICE AND MAINTENANCE 333
UsageFluid/Lubricant
Rear Axle (Limited-Slip Differential) Rear Differential LSD Fluid (GM Part No. 88862624, in Canada 88862625). Add Limited Slip Additive (GM Part No. 88900330, in Canada 00992694).
Transfer Case (All-Wheel Drive) Transfer Case Fluid (GM Part No. 19256084, in Canada 19256085). Weatherstrip Conditioning Weatherstrip lubricant (GM Part No. 3634770, in Canada 10953518) or equivalent.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.
Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer.
Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 3.6L (LF3) 22989313 A3180C
3.6L (LFX) 20972655 A3175C
Engine Oil Filter
3.6L (LF3) 19330000 PF63E
3.6L (LFX) 19330000 PF63E
Passenger Compartment Air Filter 13356914 CF184