key CADILLAC XT4 2021 Workshop Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
208 DRIVING AND OPERATING
2. Turn the steering wheel aboutone-eighth of a turn, until the right
front tire contacts the
pavement edge.
3. Turn the steering wheel to go straight down the roadway.
Loss of Control
Skidding
There are three types of skids that
correspond to the vehicle's three
control systems:
.Braking Skid —wheels are not
rolling.
.Steering or Cornering Skid —too
much speed or steering in a curve
causes tires to slip and lose
cornering force.
.Acceleration Skid —too much
throttle causes the driving wheels
to spin.
Defensive drivers avoid most skids by
taking reasonable care suited to
existing conditions, and by not
overdriving those conditions. But
skids are always possible. If the vehicle starts to slide, follow
these suggestions:
.Ease your foot off the accelerator
pedal and steer the way you want
the vehicle to go. The vehicle may
straighten out. Be ready for a
second skid if it occurs.
.Slow down and adjust your driving
according to weather conditions.
Stopping distance can be longer and
vehicle control can be affected when
traction is reduced by water, snow,
ice, gravel, or other material on the
road. Learn to recognize warning
clues
—such as enough water, ice,
or packed snow on the road to
make a mirrored surface —and
slow down when you have any
doubt.
.Try to avoid sudden steering,
acceleration, or braking, including
reducing vehicle speed by shifting
to a lower gear. Any sudden changes
could cause the tires to slide.
Remember: Antilock brakes help avoid
only the braking skid.
Off-Road Driving
All-wheel-drive vehicles can be used
for off-road driving. Vehicles without
all-wheel drive and vehicles not
equipped with All Terrain (AT) or
On-Off Road (OOR) tires must not be
driven off-road except on a level, solid
surface. To contact the tire
manufacturer for more information
about the original equipment tires, see
the warranty manual.
Controlling the vehicle is the key to
successful off-road driving. One of the
best ways to control the vehicle is to
control the speed.
{Warning
When driving off-road, bouncing
and quick changes in direction can
easily throw you out of position.
This could cause you to lose control
and crash. You and your passengers
should always wear seat belts.
Before Driving Off-Road
.Have all necessary maintenance and
service work completed.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
DRIVING AND OPERATING 219
Starting and Operating
New Vehicle Break-In
Caution
The vehicle does not need an
elaborate break-in. But it will
perform better in the long run if
you follow these guidelines:
.Do not drive at any one constant
speed, fast or slow, for the first
800 km (500 mi). Do not make
full-throttle starts. Avoid
downshifting to brake or slow the
vehicle.
.Avoid making hard stops for the
first 300 km (200 mi) or so.
During this time the new brake
linings are not yet broken in.
Hard stops with new linings can
mean premature wear and earlier
replacement. Follow this
breaking-in guideline every time
you get new brake linings.
Following break-in, engine speed
and load can be gradually
increased.
Ignition Positions
The vehicle has an electronic keyless
ignition with pushbutton start.
If the pushbutton start is not working,
the vehicle may be near a strong radio
antenna signal causing interference to
the Remote Keyless Entry (RKE)
system. See Remote Keyless Entry
(RKE) System Operation 07.
To shift out of P (Park), the vehicle
must be turned on and the brake
pedal must be applied. Stopping the Engine/OFF (No
Indicator Light) :
When the vehicle is
stopped, press ENGINE START/STOP
once to turn the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory Power
(RAP) 0224.
If the vehicle is in R (Reverse), D
(Drive) or M (Manual Mode), the
vehicle will shift to P (Park), the
ignition will turn off, and RAP will
remain active.
If the vehicle is in N (Neutral), the
ignition will return to ACC/
ACCESSORY and display the message
SHIFT TO PARK in the Driver
Information Center (DIC).
When the vehicle is shifted into
P (Park), the ignition will turn off.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering (Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
DRIVING AND OPERATING 221
Caution
Do not try to shift to P (Park) if the
vehicle is moving. If you do, you
could damage the transmission.
Shift to P (Park) only when the
vehicle is stopped.
Caution
If you add electrical parts or
accessories, you could change the
way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty. See
Add-On Electrical Equipment0280.
To start the vehicle: 1. With the Keyless Access system, the RKE transmitter must be in the
vehicle. Press ENGINE START/
STOP with the brake pedal applied.
When the engine begins cranking,
let go of the button. The idle speed
will go down as the engine warms
up. Do not race the engine
immediately after starting it. If the RKE transmitter is not in the
vehicle, if there is interference, or if
the RKE battery is low, a Driver
Information Center (DIC) message
will display. See
Remote Keyless
Entry (RKE) System Operation 07.
Caution
Cranking the engine for long
periods of time, by pressing
ENGINE START/STOP immediately
after cranking has ended, can
overheat and damage the cranking
motor, and drain the battery. Wait
at least 15 seconds between each
try, to let the cranking motor
cool down.
2. If the engine does not start after five to 10 seconds, especially in
very cold weather (below −18 °C or
0 °F), it could be flooded with too
much gasoline. Try pushing the
accelerator pedal all the way to the
floor and hold it there, then press
ENGINE START/STOP for up to a
maximum of 15 seconds. Wait at
least 15 seconds between each try,
to allow the cranking motor to cool
down. When the engine starts, let go of the button and the
accelerator. If the vehicle starts
briefly but then stops again, do the
same thing. This clears the extra
gasoline from the engine. Do not
race the engine immediately after
starting it. Operate the engine and
transmission gently until the oil
warms up and lubricates all
moving parts.
Stop/Start System
The Stop/Start system will shut off
the engine to help conserve fuel.
It has components designed for the
increased number of starts.
{Warning
The automatic engine Stop/Start
feature causes the engine to shut
off while the vehicle is still on. Do
not exit the vehicle before shifting
to P (Park). The vehicle may restart
and move unexpectedly. Always
shift to P (Park), and then turn the
ignition off before exiting the
vehicle.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
282 VEHICLE CARE
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . 345
Recreational Vehicle Towing . . . . 345
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . 348
Interior Care . . . . . . . . . . . . . . . . . . . . . . 352
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . 355
General Information
For service and parts needs, visit your
dealer. You will receive genuine GM
parts and GM-trained and supported
service people.
Genuine GM parts have one of these
marks:
California Proposition
65 Warning
{Warning
Most motor vehicles, including this
one, as well as many of its service
parts and fluids, contain and/or
emit chemicals known to the State
of California to 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. For more information go
to www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0297 and
Jump Starting - North America 0342
and the back cover.
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag initiators,
seat belt pretensioners, and lithium
batteries contained in electronic keys,

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
VEHICLE CARE 351
material on painted surfaces can be
removed by rubbing with a clean
cloth. SeeRecommended Fluids and
Lubricants 0367.
Tires
Use a stiff brush with tire cleaner to
clean the tires.
Caution
Using petroleum-based tire dressing
products on the vehicle may
damage the paint finish and/or
tires. When applying a tire dressing,
always wipe off any overspray from
all painted surfaces on the vehicle.
Wheels and Wheel Trim
Use a soft, clean cloth with mild soap
and water to clean the wheels. After
rinsing thoroughly with clean water,
dry with a soft, clean towel. A wax
may then be applied.
Caution
Chrome wheels and chrome wheel
trim may be damaged if the vehicle
is not washed after driving on roads
(Continued)
Caution (Continued)
that have been sprayed with
magnesium chloride or calcium
chloride. These are used on roads
for conditions such as dust and ice.
Always wash the chrome with soap
and water after exposure.
Caution
To avoid surface damage on wheels
and wheel trim, do not use strong
soaps, chemicals, abrasive polishes,
cleaners, or brushes. Use only GM
approved cleaners. Do not drive the
vehicle through an automatic car
wash that uses silicon carbide tire/
wheel cleaning brushes. Damage
could occur and the repairs would
not be covered by the vehicle
warranty.
Brake System
Visually inspect brake lines and hoses
for proper hook-up, binding, leaks,
cracks, chafing, etc. Inspect disc brake
pads for wear and rotors for surface condition. Inspect drum brake linings/
shoes for wear or cracks. Inspect all
other brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering, suspension,
and chassis components for damaged,
loose, or missing parts or signs of
wear at least once a year.
Inspect power steering for proper
attachment, connections, binding,
leaks, cracks, chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders, hood
hinges, liftgate hinges, and the steel
fuel door hinges, unless the
components are plastic. Applying
silicone grease on weatherstrips with a
clean cloth will make them last
longer, seal better, and not stick or
squeak.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
SERVICE AND MAINTENANCE 367
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be
obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission DEXRON-VI Automatic Transmission Fluid. Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See
Cooling System 0291.
Engine Oil Engine oil meeting the dexos1 specification of the proper SAE viscosity grade.
ACDelco dexos1 full synthetic is recommended. See Engine Oil0286.
Hood Latch Assembly, Secondary Latch,
Pivots, Spring Anchor, and Release Pawl Lubriplate Lubricant Aerosol or lubricant meeting requirements of NLGI #2,
Category LB or GC-LB.
Hydraulic Brake System DOT 4 Hydraulic Brake Fluid.
Key Lock Cylinders, Hood and Door Hinges Multi-Purpose Lubricant, Superlube. See your dealer.
Front Axle/Rear Axle See your dealer.
Transfer Case (All-Wheel Drive) Transfer Case Fluid. See your dealer. Windshield Washer Automotive windshield washer fluid that meets regional freeze protection
requirements.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
388 ONSTAR
.Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped.
Press
Qto connect to an Advisor to:
.Verify account information or
update contact information.
.Get driving directions.
.Receive a Diagnostic check of the
vehicle's key operating systems.
.Receive Roadside Service.
.Manage Wi-Fi Settings, if equipped.
Press
>to get a priority connection
to an OnStar Advisor available 24/7 to:
.Get help for an emergency.
.Be a Good Samaritan or respond to
an AMBER Alert.
.Get assistance in severe weather or
other crisis situations and find
evacuation routes.
OnStar Services
Emergency
Emergency Services require an active
safety and security plan. With
Automatic Crash Response, built-in
sensors can automatically alert a specially trained OnStar Advisor who
is immediately connected in to the
vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and relay
important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Service, Advisors can
locate a nearby service provider to
help with a flat tire, a battery jump,
or an empty gas tank.
Security
If equipped, OnStar provides these
services:
.With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
.With Remote Ignition Block,
if equipped, OnStar can block the
engine from being restarted.
.With Stolen Vehicle Slowdown,
if equipped, OnStar can work with
law enforcement to gradually slow
the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the vehicle.
OnStar Additional
Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.Prior to vehicle purchase. PressQ
to set up an account.
.After change in ownership and at
90 days.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
394 CONNECTED SERVICES
MyCadillac Mobile App (If Available)
Download the myCadillac mobile app
to compatible Apple and Android
smartphones. Cadillac users can
access the following services from a
smartphone:
.Remotely start/stop the vehicle,
if factory-equipped.
.Lock/unlock doors, if equipped with
automatic locks.
.Activate the horn and lamps.
.Check the vehicle’s fuel level, oil
life, or tire pressure,
if factory-equipped with the Tire
Pressure Monitor System.
.Send destinations to the vehicle.
.Locate the vehicle on a map (U.S.
market only).
.Turn the vehicle's Wi-Fi hotspot on/
off, manage settings, and monitor
data consumption, if equipped.
.Locate a dealer and schedule
service.
.Request Roadside Service.
.Set a parking reminder with pin
drop, take a photo, make a note,
and set a timer.
.Connect with Cadillac on social
media.
Features are subject to change. For
myCadillac mobile app information
and compatibility, see my.cadillac.com.
An active OnStar or connected service
plan may be required. A compatible
device, factory-installed remote start,
and power locks are required. Data
rates apply. See www.onstar.com for
details and system limitations.
Remote Services
Contact an OnStar Advisor to unlock
the doors or sound the horn and flash
the lamps.
Marketplace
OnStar Advisors can provide offers
from restaurants and retailers on your
route, help locate hotels, or book a
room. These services vary by market.
Diagnostics
By monitoring and reporting on the
vehicle’s key systems, OnStar
Advanced Diagnostics, if equipped,
provides a way to keep up on
maintenance. Capabilities vary by model. See www.onstar.com for details
and system limitations. Features are
subject to change. For updates on
feature capabilities, see
my.cadillac.com. Message and data
rates may apply.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
400 INDEX
High-Speed Operation . . . . . . . . . . . . . . 317
Hill and Mountain Roads . . . . . . . . . . 213
Hill Start Assist (HSA) . . . . . . . . . . . . . 234
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
How to Wear Seat Belts Properly . . . 48
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
I
If the System Needs Service . . . . . . . 164
Ignition Positions . . . . . . . . . . . . . . . . . . . 219
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 27
IndicatorPedestrian Ahead . . . . . . . . . . . . . . . . . 110
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . 109
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Information Publication Ordering . . . . . . . . . . . . . 383
Infotainment System . . . . . . . . . . . . . . . 386
Instrument Cluster . . . . . . . . . . . . . . . . . . 99
Instrument Panel Overview . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . 30
Introduction . . . . . . . . . . . . . . . . . . . . . . 1, 136
J
Jump Starting - North America . . . . 342
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . . 7
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
L
Labeling, Tire Sidewall . . . . . . . . . . . . . 310
Lamps Cornering . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Daytime Running (DRL) . . . . . . . . . . 131
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Exterior Controls . . . . . . . . . . . . . . . . . . 129
Exterior Lamps Off Reminder . . . . 131
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 105
On Reminder . . . . . . . . . . . . . . . . . . . . . . 113
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Lane Change Alert (LCA) . . . . . . . . . . . 263
Lane Keep Assist (LKA) . . . . . . . . . . . . 265
Lane Keep Assist Light . . . . . . . . . . . . . 109
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . 50
LATCH System Replacing Parts after a Crash . . . . . 79
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . 72 LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . 301
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Light
Performance Shifting . . . . . . . . . . . . . 109
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Illumination Control . . . . . . . . . . . . . . 133
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Lights Airbag Readiness . . . . . . . . . . . . . . . . . 104
All-Wheel Drive . . . . . . . . . . . . . . . . . . . 109
Antilock Brake System (ABS)
Warning . . . . . . . . . . . . . . . . . . . . . . . . . 108
Brake System Warning . . . . . . . . . . . 107
Charging System . . . . . . . . . . . . . . . . . . 105
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . 105
Cruise Control . . . . . . . . . . . . . . . . . . . . . 113
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Driver Mode Control . . . . . . . . . . . . . . 111
Electric Parking Brake . . . . . . . . . . . . 107
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . 111
Engine Oil Pressure . . . . . . . . . . . . . . . 112
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 131
Gear Shifting . . . . . . . . . . . . . . . . . . . . . . 108
High-Beam On . . . . . . . . . . . . . . . . . . . . 113

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14584367) - 2021 - CRC - 10/14/20
INDEX 403
Rearview Mirrors . . . . . . . . . . . . . . . . . . . . 30Automatic Dimming . . . . . . . . . . . . . . . 30
Reclining Seatbacks . . . . . . . . . . . . . . . . . 40
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . 367
Records Maintenance . . . . . . . . . . . . . . . . . . . . . . 369
Recreational Vehicle Towing . . . . . . . 345
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Vehicle Start . . . . . . . . . . . . . . . . 14
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Maintenance . . . . . . . . . . . . . . . . . . . . . . 368
Replacing Airbag System . . . . . . . . . . . . 65
Replacing LATCH System Parts
after a Crash . . . . . . . . . . . . . . . . . . . . . . . . 79
Replacing Seat Belt System Parts after a Crash . . . . . . . . . . . . . . . . . 54
Reporting Safety Defects Canadian Government . . . . . . . . . . . . 384
General Motors . . . . . . . . . . . . . . . . . . . 384 Reporting Safety Defects (cont'd)
U.S. Government . . . . . . . . . . . . . . . . . . 384
Restraints Where to Put . . . . . . . . . . . . . . . . . . . . . . . 71
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . . . . . . . 224
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . 29
Roads
Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . 212
Roadside Service . . . . . . . . . . . . . . . . . . . . 378
Roof Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Roof Rack System . . . . . . . . . . . . . . . . . . . 88
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . 323
Routing, Engine Drive Belt . . . . . . . . . 373
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
S
Safety Defects ReportingCanadian Government . . . . . . . . . . . . 384
General Motors . . . . . . . . . . . . . . . . . . . 384
U.S. Government . . . . . . . . . . . . . . . . . . 384
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety System Check . . . . . . . . . . . . . . . . 53
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . 145
Scheduling Appointments . . . . . . . . . . 379
Sealant Kit, Tire . . . . . . . . . . . . . . . . . . . . . 331 Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . 50
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . 103
Replacing after a Crash . . . . . . . . . . . . 54
Use During Pregnancy . . . . . . . . . . . . . 52
Seats Head Restraints . . . . . . . . . . . . . . . . . . . . 37
Heated and Ventilated Front . . . . . . 43
Heated, Rear . . . . . . . . . . . . . . . . . . . . . . . 46
Lumbar Adjustment, Front . . . . . . . . 39
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Power Adjustment, Front . . . . . . . . . 38
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Reclining Seatbacks . . . . . . . . . . . . . . . 40
Securing Child Restraints . . . . . . . 79, 81
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . 25
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Accessories andModifications . . . . . . . . . . . . . . . . . . . . 283
Doing Your Own Work . . . . . . . . . . . 283