2015 CADILLAC XTS SEDAN ECU

Black plate (1,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
2015 Cadillac XTS Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-15
Performance and Maintenance . . . . . . . . . . . . . . . . 1-20
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-1
Doors . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Vehicle Security . . . . . . . . . . . . . . 2-17
Exterior Mirrors . . . . . . . . . . . . . . . 2-20
Interior Mirrors . . . . . . . . . . . . . . . . 2-22
Windows . . . . . . . . . . . . . . . . . . . . . 2-22
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-4
Rear Seats . . . . . . . . . . . . . . . . . . . 3-13
Safety Belts . . . . . . . . . . . . . . . . . . 3-16
Airbag System . . . . . . . . . . . . . . . . 3-24
Child Restraints . . . . . . . . . . . . . . 3-38 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-3
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 5-8
Information Displays . . . . . . . . . . 5-29
Vehicle Messages . . . . . . . . . . . . 5-35
Vehicle Personalization . . . . . . . 5-47
Universal Remote System . . . . 5-55
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-6
Lighting Features . . . . . . . . . . . . . . 6-8
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-8
Maintenance . . . . . . . . . . . . . . . . . . . 8-9
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-15
Engine Exhaust . . . . . . . . . . . . . . 9-22
Automatic Transmission . . . . . . 9-23
Drive Systems . . . . . . . . . . . . . . . . 9-25
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-26
Ride Control Systems . . . . . . . . 9-29
Cruise Control . . . . . . . . . . . . . . . . 9-32
Driver Assistance Systems . . . 9-43
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-59
Trailer Towing . . . . . . . . . . . . . . . . 9-64
Conversions and Add-Ons . . . 9-69
Vehicle Care . . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-3
Headlamp Aiming . . . . . . . . . . . 10-28
Bulb Replacement . . . . . . . . . . 10-28
Electrical System . . . . . . . . . . . . 10-30
Wheels and Tires . . . . . . . . . . . 10-38

Black plate (19,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
In Brief 1-19
Power Outlets
The accessory power outlets can be
used to plug in electrical equipment,
such as a cell phone or MP3 player.
The vehicle has three accessory
power outlets:
.Inside the front storage area
below the climate control
system.
.Inside the center console.
.On the rear of the center
console.
Lift the cover to access the
accessory power outlet.
See Power Outlets on page 5-6.
Universal Remote System
If equipped, this system provides a
way to replace up to three remote
control transmitters used to activate
devices such as garage door
openers, security systems, and
home automation devices. Read the instructions completely
before attempting to program the
Universal Remote system. Because
of the steps involved, it may be
helpful to have another person
available to assist you with
programming the Universal Remote
system.
See
Universal Remote System on
page 5-55.
Sunroof
For vehicles equipped with a
sunroof, the ignition must be in ON/
RUN or ACC/ACCESSORY, or in
Retained Accessory Power (RAP) to
operate the sunroof and power
sunshade. See Ignition Positions on
page 9-15 andRetained Accessory
Power (RAP) on page 9-19.

Black plate (22,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
1-22 In Brief
The oil life system can also be reset
as follows:
1. Turn the ignition on with theengine off.
2. Fully press and release the accelerator pedal three times
within five seconds.
If the CHANGE ENGINE OIL
SOON message is not on, the
system is reset.
See Engine Oil Life System on
page 10-11.
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid
abrupt stops.
.Avoid idling the engine for long
periods of time.
.When road and weather
conditions are appropriate, use
cruise control.
.Always follow posted speed
limits or drive more slowly when
conditions require.
.Keep vehicle tires properly
inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.
Roadside Service
U.S.: 1-800-224-1400
Canada: 1-800-882-1112
TTY Users (U.S. Only):
1-888-889-2438
New vehicles are automatically
enrolled in the Roadside Service
program.
See Roadside Service on
page 13-5.
OnStar®
This vehicle may be equipped with a
comprehensive, in-vehicle system
that can connect to a live OnStar
Advisor for Emergency, Security,
Navigation, Connection, and
Diagnostic Services. OnStar
services may require a paid
subscription. See OnStar Overview
on page 14-1.

Black plate (1,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Keys, Doors, and Windows 2-1
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . 2-2
Remote Vehicle Start . . . . . . . . . 2-9
Door Locks . . . . . . . . . . . . . . . . . . 2-11
Power Door Locks . . . . . . . . . . . 2-13
Delayed Locking . . . . . . . . . . . . . 2-13
Automatic Door Locks . . . . . . . 2-13
Lockout Protection . . . . . . . . . . . 2-14
Safety Locks . . . . . . . . . . . . . . . . . 2-14
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . 2-17
Vehicle Alarm System . . . . . . . 2-17
Immobilizer . . . . . . . . . . . . . . . . . . 2-19
Immobilizer Operation . . . . . . . 2-19
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 2-20
Power Mirrors . . . . . . . . . . . . . . . . 2-20
Folding Mirrors . . . . . . . . . . . . . . . 2-21
Heated Mirrors . . . . . . . . . . . . . . . 2-21
Reverse Tilt Mirrors . . . . . . . . . . 2-21
Interior Mirrors
Interior Rearview Mirrors . . . . . 2-22
Automatic Dimming Rearview Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-22
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-22
Power Windows . . . . . . . . . . . . . 2-23
Sun Visors . . . . . . . . . . . . . . . . . . . 2-25
Rear Window Sunshade . . . . . 2-25
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-26
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with
a Remote Keyless Entry (RKE)
transmitter is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the RKE transmitter
in the vehicle, and children or
others could be caught in the path
of a closing window. Do not leave
children in a vehicle with an RKE
transmitter.

Black plate (17,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Keys, Doors, and Windows 2-17
Emergency Trunk Release
Handle
{Caution
Do not use the emergency trunk
release handle as a tie-down or
anchor point when securing items
in the trunk as it could damage
the handle.There is a glow-in-the-dark
emergency trunk release handle on
the trunk lid. This handle will glow
following exposure to light. Pull the
release handle to open the trunk
from the inside.
After use, return to the stored
position.
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System
This vehicle has an anti-theft alarm
system.
The indicator light, on the
instrument panel near the
windshield, indicates the status of
the system.
Off:
Alarm system is disarmed.

Black plate (18,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
2-18 Keys, Doors, and Windows
On Solid:Vehicle is secured
during the delay to arm the system.
Fast Flash: Vehicle is unsecured.
A door, the hood, or the trunk
is open.
Slow Flash: Alarm system is
armed.
Arming the Alarm System
1. Close the trunk and the hood. Turn off the vehicle.
2. Lock the vehicle in one of three ways:
.Use the RKE transmitter.
.Use the Keyless Access
system.
.With a door open, press the
inside
Q.
3. After 30 seconds the alarm system will arm, and the
indicator light will begin to slowly
flash indicating the alarm system
is operating. Pressing
Qon the
RKE transmitter a second time will bypass the 30-second delay
and immediately arm the alarm
system.
The vehicle alarm system will not
arm if the doors are locked with
the key.
If the driver door is opened without
first unlocking with the RKE
transmitter, the horn will chirp and
the lights will flash to indicate
pre-alarm. If the vehicle is not
started, or the door is not unlocked
by pressing
Kon the RKE
transmitter during the 10–second
pre-alarm, the alarm will be
activated.
The alarm will also be activated if a
passenger door, the trunk, or the
hood is opened without first
disarming the system. When the
alarm is activated, the turn signals
flash and the horn sounds for about
30 seconds. The alarm system will
then re-arm to monitor for the next
unauthorized event.
Disarming the Alarm System
To disarm the alarm system or turn
off the alarm if it has been activated:
.PressKon the RKE transmitter.
.Unlock the vehicle using the
Keyless Access system.
.Start the vehicle.
To avoid setting off the alarm by
accident:
.Lock the vehicle after all
occupants have left the vehicle
and all doors are closed.
.Always unlock a door with the
RKE transmitter or use the
Keyless Access system.
Unlocking the driver door with the
key will not disarm the system or
turn off the alarm.

Black plate (19,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Keys, Doors, and Windows 2-19
How to Detect a Tamper
Condition
IfKis pressed and the horn chirps
and the lights flash three times, the
alarm was activated while the alarm
system was armed.
If the alarm system has been
activated, a message will appear on
the DIC. See Security Messages on
page 5-44.
Immobilizer
See Radio Frequency Statement on
page 13-12.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off. The immobilization system is
disarmed when the pushbutton start
is activated to enter the ACC/
ACCESSORY mode or the ON/
RUN/START mode and a valid
transmitter is present in the vehicle.
The security light in the instrument
cluster comes on if there is a
problem with arming or disarming
the theft-deterrent system.
The system has one or more RKE
transmitters matched to an
immobilizer control unit in your
vehicle. Only a correctly matched
RKE transmitter will start the
vehicle. If the transmitter is ever
damaged, you may not be able to
start your vehicle.
When trying to start the vehicle, the
security light may come on briefly
when the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the vehicle will not change ignition
modes (ACC/ACCESSORY, ON/
RUN/START, OFF), and the RKE
transmitter appears to be
undamaged, try another transmitter.
Or, you may try placing the
transmitter in the transmitter pocket
in the center console. See
Key and
Lock Messages on page 5-39.
If the ignition modes will not change
with the other transmitter, your
vehicle needs service. If the ignition
does change modes, the first
transmitter may be faulty. See your
dealer who can service the
theft-deterrent system and have a
new RKE transmitter programmed to
the vehicle.

Black plate (1,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -
2015 - CRC - 10/31/14
Seats and Restraints 3-1
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats
Seat Adjustment . . . . . . . . . . . . . . 3-4
Power Seat Adjustment . . . . . . . 3-6
Lumbar Adjustment . . . . . . . . . . . 3-7
Thigh Support Adjustment . . . . 3-7
Reclining Seatbacks . . . . . . . . . . 3-7
Memory Seats . . . . . . . . . . . . . . . . 3-8
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . 3-11
Massage . . . . . . . . . . . . . . . . . . . . . 3-12
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . 3-13
Rear Seat Armrest . . . . . . . . . . . 3-14
Heated Rear Seats . . . . . . . . . . 3-15
Rear Seat Pass-Through Door . . . . . . . . 3-16
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . 3-16
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . 3-17
Lap-Shoulder Belt . . . . . . . . . . . 3-18
Safety Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . 3-22
Safety Belt Extender . . . . . . . . . 3-23
Safety System Check . . . . . . . . 3-23
Safety Belt Care . . . . . . . . . . . . . 3-23
Replacing Safety Belt System Parts after a Crash . . . . . . . . . 3-24
Airbag System
Airbag System . . . . . . . . . . . . . . . 3-24
Where Are the Airbags? . . . . . 3-26
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . 3-28
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . 3-29
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . 3-30
What Will You See after an Airbag Inflates? . . . . . . . . . . . . 3-30
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . 3-31 Servicing the Airbag-Equipped
Vehicle . . . . . . . . . . . . . . . . . . . . . 3-36
Adding Equipment to the Airbag-Equipped Vehicle . . . 3-36
Airbag System Check . . . . . . . . 3-37
Replacing Airbag System
Parts after a Crash . . . . . . . . . 3-37
Child Restraints
Older Children . . . . . . . . . . . . . . . 3-38
Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . 3-40
Child Restraint Systems . . . . . 3-43
Where to Put the Restraint . . . 3-44
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . 3-46
Replacing LATCH System Parts After a Crash . . . . . . . . . 3-53
Securing Child Restraints (Rear Seat) . . . . . . . . . . . . . . . . . 3-53
Securing Child Restraints (Front Passenger Seat) . . . . 3-55