2013 CADILLAC XTS Control module

Black plate (16,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
5-16 Instruments and Controls
on solid until the belt is buckled.
This cycle may continue several
times if the driver remains or
becomes unbuckled while the
vehicle is moving.
If the driver safety belt is buckled,
neither the chime nor the light
comes on.
Passenger Safety Belt
Reminder Light
There is a passenger safety belt
reminder light near the passenger
airbag status indicator. See
Passenger Sensing System on
page 3‑34.
When the vehicle is started, this
light flashes and a chime may come
on to remind passengers to fasten
their safety belt. Then the light stays
on solid until the belt is buckled.This cycle continues several times if
the passenger remains or becomes
unbuckled while the vehicle is
moving.
If the passenger safety belt is
buckled, neither the chime nor the
light comes on.
The front passenger safety belt
warning light and chime may turn on
if an object is put on the seat such
as a briefcase, handbag, grocery
bag, laptop, or other electronic
device. To turn off the warning light
and/or chime, remove the object
from the seat or buckle the
safety belt.
Airbag Readiness Light
This light shows if there is an
electrical problem with the airbag
system. The system check includes
the airbag sensor(s), passenger
sensing system, the pretensioners,
the airbag modules, the wiring, and
the crash sensing and diagnostic
module. For more information on the
airbag system, see
Airbag System (Sedan) on page 3‑24
orAirbag
System (Professional Vehicle) on
page 3‑24.
The airbag readiness light comes on
for several seconds when the
vehicle is started. If the light does
not come on then, have it fixed
immediately.
{WARNING
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
the airbag system might not be
working properly. The airbags in
the vehicle might not inflate in a
crash, or they could even inflate
(Continued)

Black plate (27,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Driving and Operating 9-27
may take longer than normal when
this light is on. Continue to hold the
switch until the parking brake status
light remains on. If the parking
brake warning light is on, see your
dealer.
If the EPB fails to apply, the rear
wheels should be blocked to
prevent vehicle movement.
EPB Release
To release the EPB, place the
ignition in the ACC/ACCESSORY or
ON/RUN position, apply and hold
the brake pedal, and push down
momentarily on the EPB switch.
If you attempt to release the EPB
without the brake pedal applied, a
chime will sound, and a DIC
message will be displayed. See
Brake System Messages on
page 5‑35. The EPB is released
when the parking brake status light
is off.
If the parking brake warning light is
on, the EPB has detected an error
in another system and is operating
with reduced functionality. Torelease the EPB when this light is
on, push down on the EPB switch
and hold it in the down position.
EPB release may take longer than
normal when this light is on.
Continue to hold the switch until the
parking brake status light is off.
If the light is on, see your dealer.
Notice:
Driving with the parking
brake on can overheat the brake
system and cause premature
wear or damage to brake system
parts. Make sure that the parking
brake is fully released and the
brake warning light is off before
driving.
Automatic EPB Release
The EPB will automatically release if
the vehicle is running, placed into
gear, and an attempt is made to
drive away. Avoid rapid acceleration
when the EPB is applied, to
preserve parking brake lining life.
For maximum EPB force when
towing a trailer or parking on a hill,
pull the EPB switch twice. If you are towing a trailer and parking on a hill,
see
Driving Characteristics and
Towing Tips on page 9‑60.
Brake Assist
This vehicle has a brake assist
feature designed to assist the driver
in stopping or decreasing vehicle
speed in emergency driving
conditions. This feature uses the
stability system hydraulic brake
control module to supplement the
power brake system under
conditions where the driver has
quickly and forcefully applied the
brake pedal in an attempt to quickly
stop or slow down the vehicle. The
stability system hydraulic brake
control module increases brake
pressure at each corner of the
vehicle until the ABS activates.
Minor brake pedal pulsation or
pedal movement during this time is
normal and the driver should
continue to apply the brake pedal as
the driving situation dictates. The
brake assist feature will
automatically disengage when the

Black plate (3,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Vehicle Care 10-3
cause cancer and birth defects or
other reproductive harm. Engine
exhaust, many parts and systems,
many fluids, and some component
wear by-products contain and/or
emit these chemicals.
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, safety belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non‐dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride andhandling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty.
Damage to vehicle components
resulting from modifications or the
installation or use of non‐GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle on
page 3‑39.
Vehicle Checks
Doing Your Own
Service Work
{WARNING
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner manual procedures
and consult the service manual
for your vehicle before doing any
service work.
If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order the
proper service manual, see Service
Publications Ordering Information
on page 13‑11.

Black plate (27,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Vehicle Care 10-27
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.J-CaseFuses Usage
6 Wiper
12 Starter J-Case
Fuses Usage
21 Rear Power
Windows
22 Sunroof
24 Front Power
Windows J-Case
Fuses Usage
25 Retained Accessory
Power
26 Antilock Brake
System Pump
27 Electric Parking
Brake
28 Rear Window
Defogger
41 Brake Vacuum
Assist Pump
42 Cooling Fan K2
44 Headlamp Washer
45 Cooling Fan K1
Mini Fuses Usage
1 Transmission
Control Module
—
Battery
2 Engine Control
Module Battery

Black plate (28,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
10-28 Vehicle Care
Mini Fuses Usage3 Air Conditioning
Compressor Clutch
5 Engine Control
Module Run/Crank
8 Ignition Coils
—
Even (Six Cylinder
Engine)
9 Ignition Coils
—Odd
(Six Cylinder
Engine)
10 Engine Control
Module
—Switched
Battery (from Engine
Control Module
Relay)
11 Six Cylinder Engine:
Post Catalytic
Converter Oxygen
Sensor Heater,
Mass Air Flow
Sensor, Flex Fuel
Sensor Mini Fuses Usage
13 Run/Crank for
Transmission
Control Module and
Fuel System Control
Module
14 Right Rear
Heated Seat
15 Left Rear
Heated Seat
16 Vented Seats Run/
Crank
18 Autonet Run/Crank
(Aftermarket)
20 Heated Steering
Wheel
23 Variable Effort
Steering (if
equipped)
29 Passive Entry/
Passive Start
Module
–Battery
30 All-Wheel Drive
Module Mini Fuses Usage
31 Left Front
Heated Seat
32 Body Control
Module 6
33 Right Front
Heated Seat
34 Antilock Brake
System Valves
35 Amplifier
37 Right High Beam
38 Left High Beam
46 Cooling Fan Relay
47 Six Cylinder Engine:
Pre Catalytic
Converter Oxygen
Sensor Heater,
Canister Purge
Solenoid
49 Right High Intensity
Discharge
Headlamp

Black plate (29,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Vehicle Care 10-29
Mini Fuses Usage50 Left High Intensity
Discharge
Headlamp
51 Horn
52 Cluster Run/Crank
53 Run/Crank for Inside
Rearview Mirror,
Rear Vision Camera
54 Run/Crank for
Heating, Ventilation,
and Air Conditioning
55 Outside Rearview
Mirror, Universal
Garage Door
Opener, Front
Window Switches
56 Windshield Washer
57 Steering
Column Lock
60 Heated Mirror Mini Fuses Usage
62 Ultrasonic Rear
Parking Assist/Front
Camera Module
–
Battery
64 Adaptive Forward
Lighting (AFL)
Module
—Battery
66 Trunk Release
67 Fuel System 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 Mini Relays Usage
15 Run/Crank
17 Rear Window
Defogger
Micro
Relays Usage
1 Air Conditioning
Compressor Clutch
2 Starter
4 Wiper Speed
5 Wiper Control
8 Run
10 Cooling Fan
14 Headlamp
Low Beam

Black plate (30,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
10-30 Vehicle Care
Instrument Panel Fuse
Block
The instrument panel fuse block is
located 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.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 OnStar
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)

Black plate (31,1)Cadillac XTS Owner Manual - 2013 - 1st - 4/13/12
Vehicle Care 10-31
FusesUsage
14 Diagnostic Link
Connector
15 Airbag
16 Glove Box
17 Heater Ventilation
Air Conditioning
Controller
18 Pre-Fuse for Fuses
1, 4, and 5
19 Electronic Steering
Column Lock Fuses
Usage
20 Automatic Occupant
Sensing
21 Spare
22 Steering Wheel
Controls/Backlight
23 Body Control
Module 3
24 Body Control
Module 2
25 Column Lock
Module
26 AC/DC Inverter Relays
Usage
R1 Glove Box Relay
R2 Not Used
R3 Retained Accessory
Power/Accessory
Relay