radio CADILLAC XT4 2023 Service Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
446 Customer Information
suspension, brakes, electrical
system, steering system,
body, etc.
Customer Literature
Owner’s manuals are written
specifically for owners and are
intended to provide basic
operational information about
the vehicle. The owner’s
manual includes the
Maintenance Schedule for all
models.
Customer literature
publications available for
purchase include owner’s
manuals, warranty manuals,
and portfolios. Portfolios
include an owner’s manual,
warranty manual, if applicable,
and zip lock bag or pouch.
Current and Past Models
Service manuals and customer
literature are available for
many current and past model
year GM vehicles.To order, call 1-800-551-4123
Monday–Friday, 8:00 a.m.–
6:00 p.m. Eastern Time
For credit card orders only
(VISA, MasterCard,
or Discover), see Helm, Inc. at:
www.helminc.com.
To order by mail, write to:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Make checks payable in U.S.
funds.
Radio Frequency
Statement
This vehicle uses
license-exempt transmitters /
receivers / systems that
operate on a radio frequency
that complies with Part 15/
Part 18 of the Federal
Communications Commission
(FCC) rules and with
Innovation, Science andEconomic Development (ISED)
Canada's license-exempt
RSS(s) / RSP-100 / ICES-GEN.
Operation is subject to the
following two conditions:
1. The device may not cause harmful interference.
2. The device must accept any interference received,
including interference that
may cause undesired
operation of the device.
Changes or modifications to
any of these systems by other
than an authorized service
facility could void
authorization to use this
equipment.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
448 Customer Information
Cadillac Customer Assistance
Center
Cadillac Motor Car Division
P.O. Box 33169
Detroit, MI 48232-5169
In Canada, call
1-888-446-2000, or write:
Canadian Cadillac Customer
Care Centre
General Motors of Canada
Company
500 Wentworth Street W
Oshawa, ON L1J 0C5
In Mexico, call 800-466-0805
or 800-212-234-5522.
In other Central America and
Caribbean Countries, call
52-555-901-2369.
Vehicle Data
Recording and
Privacy
The vehicle has a number of
computers that record
information about the vehicle’s
performance and how it is
driven or used. For example,the vehicle uses computer
modules to monitor and
control engine and
transmission performance, to
monitor the conditions for
airbag deployment and deploy
them in a crash, and,
if equipped, to provide antilock
braking to help the driver
control the vehicle. These
modules may store data to
help the dealer technician
service the vehicle or to help
GM improve safety or
features. Some modules may
also store data about how the
vehicle is operated, such as
rate of fuel consumption or
average speed. These
modules may retain personal
preferences, such as radio
presets, seat positions, and
temperature settings.
Cybersecurity
GM collects information about
the use of your vehicle
including operational and
safety related information. We
collect this information to
provide, evaluate, improve, and
troubleshoot our products and
services and to develop new
products and services. The
protection of vehicle
electronics systems and
customer data from
unauthorized outside
electronic access or control is
important to GM. GM
maintains appropriate security
standards, practices,
guidelines and controls aimed
at defending the vehicle and
the vehicle service ecosystem
against unauthorized
electronic access, detecting
possible malicious activity in
related networks, and
responding to suspected
cybersecurity incidents in a
timely, coordinated and
effective manner. Security
incidents could impact your
safety or compromise your
private data. To minimize
security risks, please do not
connect your vehicle
electronic systems to
unauthorized devices or

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
454 OnStar
vehicles. For more information,
a full description of OnStar
services, system limitations,
and OnStar User Terms,
Privacy Statement, and
Software Terms:
.Call 1-888-4ONSTAR
(1-888-466-7827).
.See www.onstar.com (U.S.).
.See www.onstar.ca (Canada).
.Call TTY 1-877-248-2080.
.PressQto speak with an
Advisor.
OnStar or connected services
cannot work unless the vehicle
is in a place where OnStar has
an agreement with a wireless
service provider for service in
that area. The wireless service
provider must also have
coverage, network capacity,
reception, and technology
compatible with OnStar or
connected services. Service
involving location information
about the vehicle cannot work
unless GPS signals are
available, unobstructed, and
compatible with the OnStar hardware. OnStar or
connected services may not
work if the OnStar equipment
is not properly installed or it
has not been properly
maintained. If equipment or
software is added, connected,
or modified, OnStar or
connected services may not
work. Other problems beyond
the control of OnStar
—such
as hills, tall buildings, tunnels,
weather, electrical system
design and architecture of the
vehicle, damage to the vehicle
in a crash, or wireless phone
network congestion or
jamming —may prevent
service.
See Radio Frequency
Statement 0446.
Services for People with
Disabilities
Advisors provide services to
help with physical disabilities
and medical conditions. Press
Qto help:
.Locate a gas station with an
attendant to pump gas.
.Find a hotel, restaurant, etc.,
that meets accessibility
needs.
.Provide directions to the
closest hospital or pharmacy
in urgent situations.
TTY Users
OnStar has the ability to
communicate to deaf,
hard-of-hearing,
or speech-impaired customers
while in the vehicle. The
available dealer-installed TTY
system can provide in-vehicle
access to all OnStar services,
except Virtual Advisor and
OnStar Turn-by-Turn
Navigation.
If equipped, TTY mode can be
turned on or off through
Settings > Apps > Phone.
When TTY mode is on, phone
calls can be made or received
with OnStar using the
infotainment display.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
456 OnStar
Unable to Connect to
OnStar Message
If there is limited cellular
coverage or the cellular
network has reached
maximum capacity, this
message may come on. Press
Qto try the call again or try
again after driving a few miles
into another cellular area.
Vehicle and Power Issues
OnStar services require a
vehicle electrical system,
wireless service, and GPS
satellite technologies to be
available and operating for
features to function properly.
These systems may not
operate if the battery is
discharged or disconnected.
Add-on Electrical
Equipment
The OnStar system is
integrated into the electrical
architecture of the vehicle. Do
not add any electrical equipment. See Add-On
Electrical Equipment
0325.
Added electrical equipment
may interfere with the
operation of the OnStar
system and cause it to not
operate.
Vehicle Software Updates
OnStar or GM may remotely
deliver software updates or
changes to the vehicle without
further notice or consent.
These updates or changes
may enhance or maintain
safety, security, or the
operation of the vehicle or the
vehicle systems. Software
updates or changes may
affect or erase data or
settings that are stored in the
vehicle, such as saved
navigation destinations or
pre-set radio stations. Neither
OnStar nor GM is responsible
for any affected or erased
data or settings. These
updates or changes may also
collect personal information.
Such collection is described in the OnStar privacy statement
or separately disclosed at the
time of installation. These
updates or changes may also
cause a system to
automatically communicate
with GM servers to collect
information about vehicle
system status, identify
whether updates or changes
are available, or deliver
updates or changes. An active
OnStar agreement constitutes
consent to these software
updates or changes and
agreement that either OnStar
or GM may remotely deliver
them to the vehicle.
Privacy
The complete OnStar Privacy
Statement may be found at
www.onstar.com (U.S.),
or www.onstar.ca (Canada).
We recommend that you
review it. If you have any
questions, call
1-888-4ONSTAR
(1-888-466-7827) or press
Q
to speak with an Advisor.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
462 INDEX
AlertLane Change . . . . . . . . . . . . . . . 304
Rear Cross Traffic . . . . . . . . . 297
Rear Pedestrian . . . . . . . . . . . 296
Side Blind
Zone (SBZA) . . . . . . . . . . . . . . . 304
All-Season Tires . . . . . . . . . . . . . 365
All-Wheel Drive . . . . . . . . .263, 347
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
AM-FM Radio . . . . . . . . . . . . . . . . . . 163
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . 168
Antilock Brake System (ABS) . . . . . . . . . . . . . . . 264
Warning Light . . . . . . . . . . . . . . . 129
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . . 412
Interior . . . . . . . . . . . . . . . . . . . . . . . . . 417
Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . 201
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . 439
Assistance Systems Driving . . . . . . . . . . . . . . . . . . . . . . . . . 297
Parking and Backing . . . . . . 286
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . 172 Automatic
Dimming Mirrors . . . . . . . . . . . . . 36
Door Locks . . . . . . . . . . . . . . . . . . . . 23
Emergency
Braking (AEB) . . . . . . . . . . . . . 300
Headlamp System . . . . . . . . . . 151
Parking Assist (APA) . . . . . . 291
Transmission . . . . . . . . . . . . . . . . 257
Transmission Fluid . . . . . . . . 336
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . 262
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . 169
B
BatteryExterior Lighting
Battery Saver . . . . . . . . . . . . . . 155
Power Protection . . . . . . . . . . 155
Battery - North America . . . . . . . . . . . . . . . . 346, 404
Blade Replacement, Wiper . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Bluetooth Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Overview . . . . . . . . . . . . . . . . 195, 196
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . 345 Brake (cont'd)
System Warning Light . . . . 128
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 344 Antilock . . . . . . . . . . . . . . . . . . . . . . . 264
Brake Assist . . . . . . . . . . . . . . . . 266
Electric Brake Boost . . . . . 264
Electric Parking Brake . . . 264
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . 231 AutomaticEmergency (AEB) . . . . . . . . 300
Reverse Automatic . . . . . . . 294
Braking System
FrontPedestrian (FPB) . . . . . . . . . 302
Break-In, New Vehicle . . . . . . 246
Bulb Replacement . . . . . . . . . . . 350 Back-up Lamps . . . . . . . . . . . . . 351
Front Turn SignalLamps . . . . . . . . . . . . . . . . . . . . . . . 350
Headlamp Aiming . . . . . . . . . . 350
Buying New Tires . . . . . . . . . . . . 383
C
Calibration
Compass . . . . . . . . . . . . . . . . . . . . . . 114

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
INDEX 465
ElectricalEquipment, Add-On . . . . . . . 325
System Overload . . . . . . . . . . 352
Electrical System Engine CompartmentFuse Block . . . . . . . . . . . . . . . . . 354
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . . . 353
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . 360
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . 452
Engine Air Cleaner/Filter . . . . . . . . . . 337
Air Filter Life System . . . . . 336
Check Light(Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 126
Compartment Overview . . . . . . . . . . . . . . . . . . . . 331
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 123
Coolant Temperature Warning Light . . . . . . . . . . . . . . 133
Cooling System . . . . . . . . . . . . 338
Drive Belt Routing . . . . . . . . . 434
Exhaust . . . . . . . . . . . . . . . . . . . . . . 256
Heater . . . . . . . . . . . . . . . . . . . . . . . . 252 Engine (cont'd)
Oil Life System . . . . . . . . . . . . . 335
Oil Pressure Light . . . . . . . . . . 134
Overheating . . . . . . . . . . . . . . . . . 342
Power Messages . . . . . . . . . . . 143
Running While Parked . . . 256
Starting . . . . . . . . . . . . . . . . . . . . . . 248
Entry Lighting . . . . . . . . . . . . . . . . . 154
Equipment, Towing . . . . . . . . . 322
Event Data Recorders . . . . . 449
Exit Lighting . . . . . . . . . . . . . . . . . . . 154
Extended Parking . . . . . . . . . . . 255
Extender, Seat Belt . . . . . . . . . . . 64
Exterior Lamp Controls . . . . . . . . . . . . . . 148
Lamps Off Reminder . . . . . . 150
Lighting Battery Saver . . . 155
F
FilterEngine Air Cleaner . . . . . . . . 337
Flash-to-Pass . . . . . . . . . . . . . . . . . . 150
Flashers, Hazard
Warning . . . . . . . . . . . . . . . . . . . . . . . 152
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 389 Changing . . . . . . . . . . . . . . . . . . . . . 398
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 421 Fluid
Automatic
Transmission . . . . . . . . . . . . . . 336
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 345
Washer . . . . . . . . . . . . . . . . . . . . . . . 343
Folding Mirrors . . . . . . . . . . . . . . . . . 35
Forward Collision Alert (FCA)System . . . . . . . . . . . . . . . . . . . . . . . 297
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 446
Front Heated and VentilatedSeats . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Pedestrian Braking (FPB) System . . . . . . . . . . . . . 302
Storage . . . . . . . . . . . . . . . . . . . . . . . 103
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . 311
Economy, Driving forBetter . . . . . . . . . . . . . . . . . . . . . . . 229
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 313
Filling the Tank . . . . . . . . . . . . . . 311
Foreign Countries . . . . . . . . . . 311
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
466 INDEX
Fuel (cont'd)Management, Active . . . . . . 255
Prohibited Fuels . . . . . . . . . . . . 310
Recommended . . . . . . . . . . . . . . 310
Top Tier . . . . . . . . . . . . . . . . . . . . . . 309
Fuses Engine Compartment
Fuse Block . . . . . . . . . . . . . . . . . 354
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . 353
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . 360
G
Garage Door Opener . . . . . . . . 144
Programming . . . . . . . . . . . . . . . . 144
Gas Strut(s) . . . . . . . . . . . . . . . . . . . 349
Gauges
Engine CoolantTemperature . . . . . . . . . . . . . . . 123
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Odometer . . . . . . . . . . . . . . . . . . . . . 122
Speedometer . . . . . . . . . . . . . . . . 122
Tachometer . . . . . . . . . . . . . . . . . . 122
Trip Odometer . . . . . . . . . . . . . . 122
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 118
Gear Shifting Light . . . . . . . . . . . 130 General Information
Service and
Maintenance . . . . . . . . . . . . . . 423
Towing . . . . . . . . . . . . . . . . . . . . . . . . . 313
Vehicle Care . . . . . . . . . . . . . . . . . 327
Global Positioning System (GPS) . . . . . . . . . . . . . . . . 185
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 102
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . 439
Guidance Problems with theRoute . . . . . . . . . . . . . . . . . . . . . . . . . 186
H
Hazard WarningFlashers . . . . . . . . . . . . . . . . . . . . . . . 152
HD Radio Technology . . . . . . . 166
Head Restraints . . . . . . . . . . . . . . . 45
Head-Up Display (HUD) . . . . . 139
Headlamps Aiming . . . . . . . . . . . . . . . . . . . . . . . . 350
Automatic . . . . . . . . . . . . . . . . . . . . . 151
Bulb Replacement . . . . . . . . . 350
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . 150 Headlamps (cont'd)
Flash-to-Pass . . . . . . . . . . . . . . . . 150
High-Beam On Light . . . . . . . 135
High/Low Beam
Changer . . . . . . . . . . . . . . . . . . . . . 150
Lamps On Reminder . . . . . . . 136
Heated
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Rear Seats . . . . . . . . . . . . . . . . . . . . 56
Steering Wheel . . . . . . . . . . . . . 110
Ventilated Front Seats . . . . 53
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 252
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . 221
High-Beam On Light . . . . . . . . . 135
High-Speed Operation . . . . . 374
Hill and Mountain Roads . . . . . . . . . . . . . . . . . . . . . . . . . 239
Hill Start Assist (HSA) . . . . . . 266
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 58
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
470 INDEX
PrivacyVehicle Data
Recording . . . . . . . . . . . . . . . . . . 448
Problems with Route Guidance . . . . . . . . . . . . . . . . . . . . . . 186
Program Courtesy
Transportation . . . . . . . . . . . 442
Prohibited Fuels . . . . . . . . . . . . . . 310
Proposition 65 Warning California . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Proposition 65 Warning, California . . . 404
Publication Ordering Information . . . . . . . . . . . . . . . . . . 445
R
Radiator . . . . . . . . . . . . . . . . . . . . . . . . 338
RadioAM-FM Radio . . . . . . . . . . . . . . . . 163
Data System (RDS) . . . . . . . . . 167
Frequency Statement . . . . 446
HD Radio Technology . . . . . 166
Reception . . . . . . . . . . . . . . . . . . . . . 168
Satellite . . . . . . . . . . . . . . . . . . . . . . . 167
Reading Lamps . . . . . . . . . . . . . . . 153
Rear
Camera Mirror . . . . . . . . . . . . . . . . 37 Rear (cont'd)
Cross Traffic Alert
(RCTA) System . . . . . . . . . . . . 297
Heated Seats . . . . . . . . . . . . . . . . . 56
Pedestrian Alert . . . . . . . . . . . 296
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Storage . . . . . . . . . . . . . . . . . . . . . . . 103
Vision Camera (RVC) . . . . . 286
Window Washer/Wiper . . . 113
Rearview Mirrors . . . . . . . . . . . . . . 36 Automatic Dimming . . . . . . . . . 36
Reclining Seatbacks . . . . . . . . . . 47
Recognition
Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Recommended Fluids and Lubricants . . . . . . . . . . . . . 429
Records Maintenance . . . . . . . . . . . . . . . . . 431
Recreational Vehicle
Towing . . . . . . . . . . . . . . . . . . . . . . . . 409
Reimbursement Program, GM Mobility . . . . 439
Remote Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Key Operation . . . . . . . . . . . . . . . . . . 9
Vehicle Start . . . . . . . . . . . . . . . . . . . 18 Replacement Parts
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 78
Maintenance . . . . . . . . . . . . . . . . 430
Replacing Airbag System . . . . . . . . . . . . . . . 78
LATCH System PartsAfter a Crash . . . . . . . . . . . . . . . 95
Seat Belt System Parts after a Crash . . . . . . . . . . . . . . . . 65
Reporting Safety Defects Canadian Government . . . 447
General Motors . . . . . . . . . . . . 447
U.S. Government . . . . . . . . . . 447
Restraints Where to Put . . . . . . . . . . . . . . . . . 85
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 253
Reverse Automatic Braking . . . . . . . . . . . . . . . . . . . . . . . . 294
Reverse Tilt Mirrors . . . . . . . . . . 36
Roads Driving, Wet . . . . . . . . . . . . . . . . . 238
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . 439
Roof
Rack System . . . . . . . . . . . . . . . . . 106
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 42
Rotation, Tires . . . . . . . . . . . . . . . . 381

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
INDEX 471
Routing, EngineDrive Belt . . . . . . . . . . . . . . . . . . . . . 434
Running the Vehicle While Parked . . . . . . . . . . . . . . . . 256
S
SafetyLocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Safety Defects Reporting Canadian Government . . . 447
General Motors . . . . . . . . . . . . 447
U.S. Government . . . . . . . . . . 447
Safety System Check . . . . . . . . 64
Satellite Radio . . . . . . . . . . . . . . . . . 167
Scheduling Appointments . . . . . . . . . . . . . . . . 441
Sealant Kit, Tire . . . . . . . . . . . . . . 390
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 57
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Extender . . . . . . . . . . . . . . . . . . . . . . . 64
How to Wear SeatBelts Properly . . . . . . . . . . . . . . 58
Lap-Shoulder Belt . . . . . . . . . . . 60
Reminders . . . . . . . . . . . . . . . . . . . . 123
Replacing after a Crash . . . 65
Use During Pregnancy . . . . . 63
Seats Head Restraints . . . . . . . . . . . . . 45 Seats (cont'd)
Heated and Ventilated,
Front . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Heated, Rear . . . . . . . . . . . . . . . . . . 56
Lumbar Adjustment, Front . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Massage . . . . . . . . . . . . . . . . . . . . . . . 49
Memory . . . . . . . . . . . . . . . . . . . . . . . . 50
Power Adjustment,
Front . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Reclining Seatbacks . . . . . . . . 47
Securing Child Restraints . . . . . . . . . . . . . . . . . 95, 98
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
OnStar . . . . . . . . . . . . . . . . . . . . . . . . 453
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Vehicle Alarm . . . . . . . . . . . . . . . . . 32
Service . . . . . . . . . . . . . . . . . . . . . . . . . 226 Accessories and
Modifications . . . . . . . . . . . . . . . 327
Doing Your Own Work . . . 328
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Maintenance Records . . . . . 431
Maintenance, General
Information . . . . . . . . . . . . . . . . 423 Service (cont'd)
Parts Identification . . . . . . . 432
Scheduling
Appointments . . . . . . . . . . . . . . 441
Services Special Application . . . . . . . . 428
Servicing System . . . . . . . . . . . . . 187
Servicing the Airbag . . . . . . . . . . 76
Settings . . . . . . . . . . . . . . . . . . . . . . . . 203
Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . 254
Out of Park . . . . . . . . . . . . . . . . . . 254
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . . 304
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . 152
Software Updates . . . . . . . . . . . 163
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . 404
Special Application Services . . . . . . . . . . . . . . . . . . . . . . 428
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . 433
Speedometer . . . . . . . . . . . . . . . . . . 122
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 132
Start Assist, Hill . . . . . . . . . . . . . . 266
Start Vehicle, Remote . . . . . . . . 18