
Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
crc - 6/24/15
248 Vehicle Care
{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper brake fluid.
Caution
If brake fluid is spilled on the
vehicle's painted surfaces, the
paint finish can be damaged.
Immediately wash off any painted
surface.
Battery
The original equipment battery is
maintenance free. Do not remove
the cap and do not add fluid.
Refer to the replacement number
shown on the original battery label
when a new battery is needed. See
Engine Compartment Overview
0230 for battery location.
{Warning
Do not use a match or flame near
a vehicle's battery. If you need
more light, use a flashlight.
When working around a vehicle’s
battery, shield your eyes with
protective glasses.
Keep children away from vehicle
batteries.
{Warning
Batteries have acid that can burn
you and gas that can explode.
You can be hurt badly if you are
not careful.
Follow instructions carefully when
working around a battery.
Battery posts, terminals and
related accessories contain lead
and lead compounds which can
cause cancer and reproductive
harm. Wash hands after handling.
Vehicle Storage
Infrequent Usage: Remove the
black, negative (−) cable from the
battery to keep the battery from
running down.
Extended Storage: Remove the
black, negative (−) cable from the
battery or use a battery trickle
charger.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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Vehicle Care 251
Windshield Replacement
HUD System
The windshield is part of the HUD
system. If the windshield must be
replaced, get one that is designed
for HUD or the HUD image may
look out of focus.
Driver Assistance Systems
When a windshield replacement is
needed and the vehicle is equipped
with a front-looking camera sensor
for the Driver Assistance Systems,
the windshield must be installed
according to GM specifications for
these systems to work properly. If it
is not, there may be unexpected
behavior and/or messages from
these systems. SeeObject
Detection System Messages 0139.
Headlamp Aiming
Headlamp aim has been preset and
should need no further adjustment.
If the vehicle is damaged in a crash,
the headlamp aim may be affected.
If adjustment to the headlamps is
necessary, see your dealer.
Bulb Replacement
For the proper type of replacement
bulbs, see Replacement Bulbs
0 253.
For any bulb-changing procedure
not listed in this section, contact
your dealer.
High Intensity Discharge
(HID) Lighting
{Warning
The high intensity discharge
lighting system operates at a very
high voltage. If you try to service
any of the system components,
you could be seriously injured.
Have your dealer or a qualified
technician service them.
After an HID headlamp bulb has
been replaced, the beam might be a
slightly different shade than it was
originally. This is normal.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
crc - 6/24/15
252 Vehicle Care
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
Back-Up Lamps
1. Back-Up Bulb Socket
2. Back-Up Lamp Assembly
To replace one of these bulbs:1. Reach under the rear fascia and locate the back-up lamp
assembly. 2. Remove the bulb socket (1) by
turning counterclockwise and
pulling straight out of the lamp
assembly (2).
3. Pull the bulb out of the socket.
4. Install the new bulb in the bulb socket.
5. Install the bulb socket by turning clockwise.
License Plate Lamp
Lamp Assembly
Bulb Assembly
1. Bulb Socket
2. Bulb
3. Lamp Assembly
To replace one of these bulbs:
1. Push the lamp assembly (3) toward the right.
2. Pull the lamp assembly down to remove.
3. Turn the bulb socket (1) counterclockwise to remove it
from the lamp assembly (3).
4. Pull the bulb (2) straight out of the bulb socket (1).

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
crc - 6/24/15
Vehicle Care 257
Mini Fuses Usage55 Outside Rearview Mirror, Front Window
Switches
56 Windshield Washer
57 Steering Column Lock
60 Heated Mirror
62 Massage Memory Bolster
64 Adaptive Forward Lighting (AFL)
Module–Battery
66 Trunk Release
67 Chassis Control Module
69 Regulated Voltage Control Sensor
70 Vent Canister Solenoid
71 Memory Module Mini Relays Usage
7 Engine Control Module
9 Cooling Fan
13 Cooling Fan
15 Run/Crank
17 Rear Window Defogger
Micro
Relays Usage
1 Air Conditioning Compressor Clutch
2 Starter
4 Wiper Speed
5 Wiper Control
8 Not Used
10 Cooling Fan
11 Headlamp Washer
14 Headlamp Low BeamInstrument Panel Fuse
Block
The instrument panel fuse block is
in the instrument panel, on the
driver side of the vehicle. To access
the fuses, open the fuse panel door
by pulling down at the top.
Press in on the sides of the door to
release it from the instrument panel.
Pull the door toward you to release
it from the hinge.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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258 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 Wireless Charger Module
2 Body Control Module 7
3 Body Control Module 5
4 Radio Fuses
Usage
5 Infotainment and Center Stack
Displays, Head-up
Display, Instrument
Cluster, Rear Seat
Entertainment
6 Power Outlet 1
7 Power Outlet 2
8 Body Control Module 1
9 Body Control Module 4
10 Body Control Module 8
(J-Case Fuse)
11 Front Heater Ventilation Air
Conditioning/Blower
(J-Case Fuse)
12 Passenger Seat (Circuit Breaker)
13 Driver Seat (Circuit Breaker) Fuses
Usage
14 Diagnostic Link Connector
15 Airbag AOS
16 Glove Box
17 Heater Ventilation Air Conditioning
Controller
18 Logistics
19 Electronic Steering Column Lock
20 Telematics (OnStar)
21 Spare
22 Steering Wheel Controls/Backlight
23 Body Control Module 3
24 Body Control Module 2
25 Power Steering Column
26 AC/DC Inverter

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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260 Vehicle Care
Fuse
Number Usage
F09 Not Used
F10 Not Used F11 Not Used
F12 Not Used
F13 Not Used
F14 Not Used
F15 Not Used
F16 Video Processing Module
F17 Not Used
F18 Semi-active Damping System
F19 Universal Garage Door Opener/Rain,
Light, and Humidity
Sensor
F20 Shunt
F21 Side Blind Zone
F22 Not Used
F23 All-Wheel Drive Fuse
Number Usage
F24 Not Used
F25 Not Used
F26 Not Used
F27 Not Used
F28 Not Used
F29 Not Used
F30 Front Camera/EOCM
F31 Rear Parking Assist/ Lane Departure
Warning
F32 Not Used
F33 Not Used
F34 Not Used
F35 Not Used
F36 Not Used
F37 Not Used
Relays Usage K1 Not Used Relays Usage
K2 Front Courtesy Lamps Relay
K3 Leveling Compressor Relay
K4 Logic

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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266 Vehicle Care
alternate tires and wheels allow the
TPMS to continue to function
properly.
SeeTire Pressure Monitor
Operation 0266 for additional
information.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn the
driver when a low tire pressure
condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire
and wheel assembly. The TPMS
sensors monitor the air pressure in
the tires and transmit the tire
pressure readings to a receiver
located in the vehicle.
When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning light
located on the instrument cluster.
If the warning light comes on, stop
as soon as possible and inflate the
tires to the recommended pressure
shown on the Tire and Loading
Information label. See Vehicle Load
Limits 0177.
A message to check the pressure in
a specific tire displays in the Driver
Information Center (DIC). The low
tire pressure warning light and the
DIC warning message come on at
each ignition cycle until the tires are
inflated to the correct inflation
pressure. Using the DIC, tire
pressure levels can be viewed. For
additional information and details
about the DIC operation and
displays see Driver Information
Center (DIC) 0128.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
could be an early indicator that the air pressure is getting low and
needs to be inflated to the proper
pressure.
A Tire and Loading Information
label, attached to your vehicle,
shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. See
Vehicle Load
Limits 0177, for an example of the
Tire and Loading Information label
and its location. Also see Tire
Pressure 0263.
The TPMS can warn about a low
tire pressure condition but it does
not replace normal tire
maintenance. See Tire Inspection
0 268, Tire Rotation 0269 andTires
0 261.
Caution
Tire sealant materials are not all
the same. A non-approved tire
sealant could damage the TPMS
sensors. TPMS sensor damage
caused by using an incorrect tire
sealant is not covered by the
(Continued)

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-9369806) - 2016 -
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Vehicle Care 267
Caution (Continued)
vehicle warranty. Always use only
the GM approved tire sealant
available through your dealer or
included in the vehicle.
TPMS Malfunction Light and
Message
The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire warning light flashes for
about one minute and then stays on
for the remainder of the ignition
cycle. A DIC warning message also
displays. The malfunction light and
DIC warning message come on at
each ignition cycle until the problem
is corrected. Some of the conditions
that can cause these to come
on are:
.One of the road tires has been
replaced with the spare tire. The
spare tire does not have a
TPMS sensor. The malfunction
light and DIC message should go off after the road tire is
replaced and the sensor
matching process is performed
successfully. See
“TPMS Sensor
Matching Process” later in this
section.
. The TPMS sensor matching
process was not done or not
completed successfully after
rotating the tires. The
malfunction light and the DIC
message should go off after
successfully completing the
sensor matching process. See
"TPMS Sensor Matching
Process" later in this section.
. One or more TPMS sensors are
missing or damaged. The
malfunction light and the DIC
message should go off when the
TPMS sensors are installed and
the sensor matching process is
performed successfully. See
your dealer for service.
. Replacement tires or wheels do
not match the original equipment
tires or wheels. Tires and wheels
other than those recommended could prevent the TPMS from
functioning properly. See
Buying
New Tires 0271.
. Operating electronic devices or
being near facilities using radio
wave frequencies similar to the
TPMS could cause the TPMS
sensors to malfunction.
If the TPMS is not functioning
properly it cannot detect or signal a
low tire condition. See your dealer
for service if the TPMS malfunction
light and DIC message comes on
and stays on.
TPMS Sensor Matching
Process
Each TPMS sensor has a unique
identification code. The identification
code needs to be matched to a new
tire/wheel position after rotating the
vehicle’s tires or replacing one or
more of the TPMS sensors. The
TPMS sensor matching process
should also be performed after
replacing a spare tire with a road
tire containing the TPMS sensor.
The malfunction light and the DIC
message should go off at the next
ignition cycle. The sensors are