2013 CADILLAC XTS cooling

Black plate (13,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
In Brief 1-13
Climate Controls
The climate control buttons and the touch screen are used to adjust the
heating, cooling, and ventilation.
Dual Automatic Climate Control (Base)
1. Driver and Passenger Temperature Controls
2. Fan Control
3. AUTO (Automatic Operation)
4. Air Delivery Mode Control
5. OFF (Fan) 6. SYNC (Synchronized
Temperature)
7. Driver and Passenger Heated Seats (If Equipped)
8. AC (Air Conditioning)
9. Defrost 10. Rear Window Defogger
11. Recirculation

Black plate (1,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-2
Heated Steering Wheel . . . . . . . 5-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-5
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Power Outlets . . . . . . . . . . . . . . . . . 5-6
Cigarette Lighter . . . . . . . . . . . . . . 5-7
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 5-8
Instrument Cluster . . . . . . . . . . . . 5-9
Speedometer . . . . . . . . . . . . . . . . 5-13
Odometer . . . . . . . . . . . . . . . . . . . . 5-13
Trip Odometer . . . . . . . . . . . . . . . 5-13
Tachometer . . . . . . . . . . . . . . . . . . 5-13
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-13
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-15
Safety Belt Reminders . . . . . . . 5-15 Airbag Readiness Light . . . . . . 5-16
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 5-17
Charging System Light . . . . . . 5-18
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-18
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-20
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-21
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-21
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-22
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . 5-22
Forward Collision Alert (FCA) Warning Light . . . . . . . . . . . . . . 5-23
Traction Off Light . . . . . . . . . . . . 5-23
StabiliTrak®OFF Light . . . . . . . 5-23
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-24
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . 5-24
Tire Pressure Light . . . . . . . . . . 5-25
Engine Oil Pressure Light . . . . 5-25
Low Fuel Warning Light . . . . . . 5-25
Security Light . . . . . . . . . . . . . . . . 5-26
High-Beam On Light . . . . . . . . . 5-26 Adaptive Forward Lighting
(AFL) Light . . . . . . . . . . . . . . . . . 5-26
Lamps On Reminder . . . . . . . . . 5-27
Cruise Control Light . . . . . . . . . 5-27
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . 5-27
Head-Up Display (HUD) . . . . . 5-30
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-34
Battery Voltage and Charging Messages . . . . . . . . . . . . . . . . . . 5-34
Brake System Messages . . . . 5-35
Compass Messages . . . . . . . . . 5-35
Cruise Control Messages . . . . 5-35
Door Ajar Messages . . . . . . . . . 5-36
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-36
Engine Oil Messages . . . . . . . . 5-37
Engine Power Messages . . . . 5-37
Fuel System Messages . . . . . . 5-37
Key and Lock Messages . . . . . 5-38
Lamp Messages . . . . . . . . . . . . . 5-38
Object Detection System Messages . . . . . . . . . . . . . . . . . . 5-39
Ride Control System Messages . . . . . . . . . . . . . . . . . . 5-41

Black plate (36,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
5-36 Instruments and Controls
NO CRUISE BRAKING GAS
PEDAL APPLIED
This message displays when
Adaptive Cruise Control (ACC) is
active and the driver is pressing the
gas pedal. When this occurs, ACC
will not brake. SeeAdaptive Cruise
Control on page 9‑34.
Door Ajar Messages
DOOR OPEN
A door open symbol will be
displayed on the DIC showing which
door is open. If the vehicle has been
shifted out of P (Park), a DOOR
OPEN message will also be
displayed. If the vehicle is in manual
shift mode, the DOOR OPEN
message will be displayed if the
vehicle starts to move. Close the
door completely.
HOOD OPEN
This message will display along with
a hood open symbol when the hood
is open. Close the hood completely.
TRUNK OPEN
This message will display along with
a symbol when the trunk is open.
Close the trunk completely.
Engine Cooling System
Messages
A/C OFF DUE TO HIGH
ENGINE TEMP
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
To avoid added strain on a hot
engine, the air conditioning
compressor automatically turns off.
When the coolant temperature
returns to normal, the air
conditioning compressor turns back
on. The vehicle can continue to be
driven.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
COOLANT LEVEL LOW ADD
COOLANT
This message will display if the
coolant is low. See Engine Coolant
on page 10‑12.
ENGINE OVERHEATED —
IDLE ENGINE
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down.
ENGINE OVERHEATED —
STOP ENGINE
This message displays and a
continuous chime sounds if the
engine cooling system reaches
unsafe temperatures for operation.
Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature.

Black plate (1,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Climate Controls 8-1
Climate Controls
Climate Control Systems
Dual Automatic Climate ControlSystem (Uplevel) . . . . . . . . . . . . 8-1
Dual Automatic Climate Control System (Base) . . . . . . . . . . . . . . . 8-6
Rear Climate Control System . . . . . . . . . . . . . . . . . . . . . . 8-9
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 8-11
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . 8-12
Service . . . . . . . . . . . . . . . . . . . . . . 8-14
Climate Control Systems
Dual Automatic Climate Control System (Uplevel)
The climate control buttons and the touch screen are used to adjust the
heating, cooling, and ventilation.
Climate Control Buttons
1. Driver and Passenger Temperature Controls
2. Fan Control
3. OFF (Fan) 4. Driver and Passenger Heated
and Ventilated Seats (If
Equipped)

Black plate (6,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
8-6 Climate Controls
Sensor
The solar sensor, located on top of
the instrument panel near the
windshield, monitors the solar heat.
The climate control system uses the
sensor information to adjust the
temperature, fan speed,
recirculation, and air delivery mode
for best comfort.
If the sensor is covered, the
automatic climate control system
may not work properly.
Dual Automatic Climate Control System (Base)
For vehicles with this system, it controls the heating, cooling, and ventilation.
1. Driver and PassengerTemperature Controls
2. Fan Control
3. AUTO (Automatic Operation)
4. Air Delivery Mode Control
5. OFF (Fan)
6. SYNC (Synchronized Temperature) 7. Driver and Passenger Heated
Seats (If Equipped)
8. AC (Air Conditioning)
9. Defrost
10. Rear Window Defogger
11. Recirculation

Black plate (7,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Driving and Operating 9-7
.Keep your eyes moving—scan
the road ahead and to the sides.
.Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. Tips for
driving in these conditions include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
transmission.
.Shift to a lower gear when going
down steep or long hills.
{WARNING
If you do not shift down, the
brakes could get so hot that they
would not work well. You would
then have poor braking or even
(Continued)
WARNING (CONTINUED)
none going down a hill. You could
crash. Shift down to let the engine
assist the brakes on a steep
downhill slope.
{WARNING
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. The brakes will have
to do all the work of slowing down
and they could get so hot that
they would not work well. You
would then have poor braking or
even none going down a hill. You
could crash. Always have the
engine running and the vehicle in
gear when going downhill.
.Stay in your own lane. Do not
swing wide or cut across the
center of the road. Drive at
speeds that let you stay in your
own lane.
.Be alert on top of hills;
something could be in your lane
(stalled car, accident).
.Pay attention to special road
signs (falling rocks area, winding
roads, long grades, passing or
no-passing zones) and take
appropriate action.
Winter Driving
Driving on Snow or Ice
Drive carefully when there is snow
or ice between the tires and the
road, creating less traction or grip.
Wet ice can occur at about 0°C (32°
F) when freezing rain begins to fall,
resulting in even less traction. Avoid
driving on wet ice or in freezing rain
until roads can be treated with salt
or sand.

Black plate (63,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Driving and Operating 9-63
transmission fluid, engine oil, axle
lubricant, belts, cooling system and
brake system. Inspect these before
and during the trip.
Check periodically to see that all
hitch nuts and bolts are tight.
Engine Cooling When Trailer
Towing
The cooling system may temporarily
overheat during severe operating
conditions. SeeEngine Overheating
on page 10‑14.
Trailer Towing
Before pulling a trailer, there are
three important considerations that
have to do with weight:
.The weight of the trailer.
.The weight of the trailer tongue.
.The total weight on your
vehicle's tires.
Weight of the Trailer
How heavy can a trailer safely be?
It should never weigh more than
454 kg (1,000 lbs). But even that
can be too heavy.
It depends on how the rig is used.
For example, speed, altitude, road
grades, outside temperature, and
how much the vehicle is used to pull
a trailer are all important. It can
depend on any special equipment
on the vehicle, and the amount of
tongue weight the vehicle can carry.
See “Weight of the Trailer Tongue”
later in this section.
Maximum trailer weight is calculated
assuming only the driver is in the
tow vehicle and it has all the
required trailering equipment. The
weight of additional optional
equipment, passengers, and cargo
in the tow vehicle must be
subtracted from the maximum trailer
weight. Ask your dealer for trailering
information or advice, or write us at
our Customer Assistance Offices.
See
Customer Assistance Offices
on page 13‑3.
Weight of the Trailer Tongue
The tongue load (1) of any trailer is
an important weight to measure
because it affects the total gross
weight of the vehicle. The Gross
Vehicle Weight (GVW) includes the
curb weight of the vehicle, any
cargo carried in it, and the people
who will be riding in the vehicle.
If there are a lot of options,
equipment, passengers, or cargo in
the vehicle, it will reduce the tongue
weight the vehicle can carry, which
will also reduce the trailer weight the
vehicle can tow. If towing a trailer,
the tongue load must be added to
the GVW because the vehicle will
be carrying that weight, too. See
Vehicle Load Limits on page 9‑10.

Black plate (1,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-3
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-5
Engine Cover . . . . . . . . . . . . . . . . 10-6
Engine Oil . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil Life System . . . . . . 10-9
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-10
Engine Air Cleaner/Filter . . . . 10-10
Cooling System . . . . . . . . . . . . . 10-11
Engine Coolant . . . . . . . . . . . . . 10-12
Engine Overheating . . . . . . . . 10-14 Overheated Engine
Protection
Operating Mode . . . . . . . . . . . 10-16
Power Steering Fluid . . . . . . . 10-16
Washer Fluid . . . . . . . . . . . . . . . 10-17
Brakes . . . . . . . . . . . . . . . . . . . . . 10-18
Brake Fluid . . . . . . . . . . . . . . . . . 10-19
Battery . . . . . . . . . . . . . . . . . . . . . 10-20
All-Wheel Drive . . . . . . . . . . . . . 10-20
Starter Switch Check . . . . . . . 10-20
Automatic Transmission Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-21
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-21
Wiper Blade Replacement . . . . . . . . . . . . . . 10-22
Windshield Replacement . . . 10-22
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-23
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-23
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . 10-23
LED Lighting . . . . . . . . . . . . . . . 10-23 Back-Up Lamps . . . . . . . . . . . . 10-23
License Plate Lamp . . . . . . . . 10-24
Replacement Bulbs . . . . . . . . . 10-25
Electrical System
Electrical System
Overload . . . . . . . . . . . . . . . . . . 10-25
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-26
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-26
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-30
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-32
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-34
All-Season Tires . . . . . . . . . . . . 10-35
Winter Tires . . . . . . . . . . . . . . . . 10-35
Summer Tires . . . . . . . . . . . . . . 10-35
Tire Sidewall Labeling . . . . . . 10-36
Tire Designations . . . . . . . . . . . 10-38
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-38
Tire Pressure . . . . . . . . . . . . . . . 10-41
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . 10-43