2003 CADILLAC ESCALADE brake light

Trailer Wiring Harness
Heavy-Duty Trailer Wiring Package
Your vehicle is equipped with the seven-wire trailer
towing harness.This harness with a seven-pin universal
heavy-duty trailer connector is attached to a bracket
on the hitch platform.
The Center High-Mounted Stoplamp (CHMSL) wire is
tied next to the trailer wiring harness for use with a
trailer.The seven-wire harness contains the following trailer
circuits:
·Yellow: Left Stop/Turn Signal
·Dark Green: Right Stop/Turn Signal
·Brown: Taillamps
·White: Ground
·Light Green: Back-up Lamps
·Red: Battery Feed
·Dark Blue: Trailer Brake
If your trailer is equipped with electric brakes, you can
get a jumper harness (electric trailer brake control)
with a trailer battery feed fuse from your dealer. If you
need to tow a light-duty trailer with a standard four-way
round connector you can also get an adaptor from
your dealer.
4-64

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of Your
Vehicle......................................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under
the Hood....................................................5-10
Hood Release..............................................5-10
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-14
Engine Air Cleaner/Filter................................5-19
Automatic Transmission Fluid.........................5-21
Engine Coolant.............................................5-24
Coolant Surge Tank Pressure Cap..................5-27
Engine Overheating.......................................5-28
Cooling System............................................5-30Engine Fan Noise.........................................5-36
Power Steering Fluid.....................................5-36
Windshield Washer Fluid................................5-38
Brakes........................................................5-39
Battery........................................................5-43
Jump Starting...............................................5-44
All-Wheel Drive..............................................5-50
Rear Axle.......................................................5-51
Front Axle......................................................5-52
Headlamp Aiming...........................................5-53
Headlamp Horizontal Aiming...........................5-54
Headlamp Vertical Aiming..............................5-55
Bulb Replacement..........................................5-57
High Intensity Discharge (HID) Lighting............5-57
Halogen Bulbs..............................................5-57
Headlamps..................................................5-58
Front Turn Signal, Sidemarker and Daytime
Running Lamps.........................................5-62
Center High-Mounted Stoplamp (CHMSL).........5-63
Taillamps.....................................................5-63
Replacement Bulbs.......................................5-64
Windshield Wiper Blade Replacement..............5-65
Section 5 Service and Appearance Care
5-1

Notice:
·Using the wrong ¯uid can badly damage brake
system parts. For example, just a few drops of
mineral-based oil, such as engine oil, in your
brake system can damage brake system
parts so badly that they'll have to be replaced.
Don't let someone put in the wrong kind of ¯uid.
·If you spill brake ¯uid on your vehicle's painted
surfaces, the paint ®nish can be damaged. Be
careful not to spill brake ¯uid on your vehicle. If
you do, wash it off immediately. See
ªAppearance Careº in the Index.
Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the
brake pedal ®rmly).
{CAUTION:
The brake wear warning sound means that
soon your brakes won't work well. That could
lead to an accident. When you hear the brake
wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are ®rst applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque speci®cations.
Brake linings should always be replaced as complete
axle sets.
See
Brake System Inspection on page 6-17.
5-41

Fuses Usage
IPC/DICInstrument Panel
Cluster/Driver Information
Center
HVAC/ECAS Climate Control Controller
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
HDLP-LOW Headlamp Low Beam Relay
A/C COMP Air Conditioning Compressor
A/C COMPAir Conditioning Compressor
Relay
RR WPR Rear Wiper/Washer
RADIO Audio System
SEO B1Mid Bussed Electrical Center,
HomeLink, Rear Heated
Seats
LO HDLP-LT Headlamp Low Beam-Left
BTSIBrake Transmission Shift
Interlock System
CRANK Starting SystemFuses Usage
LO HDLP-RT Headlamp Low Beam-Right
FOG LP Fog Lamp Relay
FOG LP Fog Lamps
HORN Horn Relay
W/S WASHWindshield and Rear Window
Washer Pump Relay
W/S WASHWindshield and Rear Window
Washer Pump
INFOOnStar/Rear Seat
Entertainment
RADIO AMP Radio Ampli®er
RH HIDRight Hand High Intensity
Discharge Lamp
HORN Horn Fuse
EAP Electric Adjustable Pedals
TREC All-Wheel Drive Module
SBA Supplemental Brake Assist
5-111

A
Accessory Power Outlets.................................3-23
Adding Washer Fluid.......................................5-38
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Equipment..........................................4-52
Adjustable Throttle and Brake Pedal..................2-22
Adjusting the Speakers (Balance/Fade)..............3-75
After Off-Road Driving.....................................4-32
Air Bag System, Supplemental Restraint
System (SRS).............................................1-76
Air Bag .........................................................3-38
Passenger Status Indicator...........................3-38
Readiness Light..........................................3-37
Air Cleaner/Filter, Engine.................................5-19
Air Conditioning..............................................3-29
All-Wheel Drive...............................................5-50
AM .............................................................3-103
Analog Clock..................................................3-24
Antenna, Diversity Antenna System..................3-105
Antenna, XMŸ Satellite Radio Antenna
System.....................................................3-105
Anti-Lock Brake, System Warning Light..............3-42
Anti-lock Brake System..................................... 4-7
Appearance Care............................................5-94
Care of Safety Belts....................................5-96
Chemical Paint Spotting..............................5-100
Cleaning the Inside of Your Vehicle................5-94Appearance Care (cont.)
Cleaning the Outside of Your Vehicle..............5-97
Finish Damage..........................................5-100
Sheet Metal Damage...................................5-99
Underbody Maintenance.............................5-100
Vehicle Care/Appearance Materials...............5-100
Weatherstrips..............................................5-96
Approaching a Hill..........................................4-24
Ashtrays........................................................3-23
Audio Output..................................................3-92
Audio System(s).............................................3-70
Audio Steering Wheel Controls....................3-102
Care of Your Cassette Tape Player...............3-103
Care of Your CD and DVD Player................3-104
Care of Your CD Changer...........................3-104
Care of Your CDs and DVDs.......................3-104
CD Changer...............................................3-99
Diversity Antenna System............................3-105
Navigation/Radio System..............................3-96
Radio with Cassette and CD.........................3-71
Rear Seat Audio (RSA)................................3-97
Setting the Time..........................................3-70
Theft-Deterrent Feature...............................3-101
Understanding Radio Reception...................3-103
XMŸ Satellite Radio Antenna System...........3-105
Automatic Climate Control System.....................3-24
Automatic Headlamp System............................3-16
Automatic Level Control...................................4-53
Automatic Transmission Check..........................6-12
1

Automatic Transmission Shift Lock Control
System Check.............................................6-14
Automatic Transmission...................................5-21
Fluid..........................................................5-21
Operation...................................................2-24
B
Backing Up....................................................4-61
BATTERY NOT CHARGING.............................3-63
Battery Replacement......................................... 2-7
Battery Run-Down Protection............................3-19
Battery..........................................................5-43
Before Leaving on a Long Trip.........................4-40
Before You Drive............................................3-85
Before You Go Off-Roading..............................4-19
Bench Seat Split (50/50)..................................1-13
Bench Seat, Split (60/40).................................1-10
Bench Seat....................................................1-19
Body Lubrication Service..................................6-13
Brake Adjustment............................................5-42
Brake Fluid....................................................5-39
Brake Pedal, Throttle.......................................2-22
Brake Pedal Travel.........................................5-42
Brake Wear...................................................5-41
Brake............................................................2-27
Parking......................................................2-27
System Inspection.......................................6-17
System Warning Light..................................3-40Brake (cont.)
Brakes..........................................................5-39
Braking in Emergencies..................................... 4-8
Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-20
Bucket Seats, Rear.........................................1-25
Bulb Replacement...........................................5-57
Center High-Mounted Stoplamp (CHMSL)........5-63
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-62
Halogen Bulbs............................................5-57
Headlamp Aiming........................................5-53
Headlamps.................................................5-58
High Intensity Discharge (HID) Lighting...........5-57
Replacement Bulbs......................................5-64
Taillamps....................................................5-63
Buying New Tires...........................................5-70
C
Cadillac Owner PrivilegesŸ............................... 7-6
California Fuel.................................................. 5-5
Canada ± Customer Assistance.......................... 7-4
Canadian Owners................................................ ii
Capacities and Speci®cations..........................5-112
Carbon Monoxide...................4-43, 4-54, 2-15, 2-31
Care of.........................................................5-96
Safety Belts................................................5-96
Your Cassette Tape Player..........................3-103
2

Care of (cont.)
Your CD and DVD Player...........................3-104
Your CD Changer......................................3-104
Your CDs and DVDs..................................3-104
Cargo Area Door Lock Switch...........................2-10
Cargo Cover..................................................2-47
Cargo Tie Downs............................................2-48
Cassette Tape Messages.................................3-81
Cassette Tape Player Service...........................6-11
CD Adapter Kits.............................................3-82
CD Changer...................................................3-99
CD Functions...............................................3-100
Center Console Storage Area...........................2-45
Center High-Mounted Stoplamp (CHMSL)...........5-63
Center Instrument Panel Fuse Block................5-106
Center Passenger Position, Safety Belts.............1-42
Chains, Tires..................................................5-74
CHANGE ENGINE OIL....................................3-62
Charging System Light....................................3-39
Check Engine Light.........................................3-44
CHECK OIL LEVEL.........................................3-62
CHECK TIRE PRESSURE...............................3-69
CHECK WASHER FLUID.................................3-65
Checking Brake Fluid......................................5-40
Checking Coolant............................................5-26
Checking Engine Oil........................................5-14
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-90Check...........................................................3-44
Engine Light...............................................3-44
Chemical Paint Spotting.................................5-100
Child Restraints..............................................1-57
Child Restraint Systems...............................1-57
Infants and Young Children...........................1-53
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-65
Older Children.............................................1-51
Securing a Child Restraint Designed for the
LATCH System........................................1-67
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-70
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-67
Securing a Child Restraint in the Right Front
Seat Position...........................................1-72
Top Strap Anchor Location............................1-63
Top Strap...................................................1-61
Where to Put the Restraint...........................1-60
Cigarette Lighter.............................................3-23
Cleaning Aluminum or Chrome-Plated Wheels.....5-99
Cleaning Exterior Lamps/Lenses.......................5-97
Cleaning Fabric/Carpet....................................5-94
Cleaning Glass Surfaces..................................5-96
Cleaning Interior Plastic Components.................5-95
Cleaning Leather............................................5-95
Cleaning the Mirror.........................................2-35
3

Hitches..........................................................4-59
HomeLink Transmitter, Programming..................2-41
HomeLink
žTransmitter....................................2-40
Hood............................................................5-10
Checking Things Under................................5-10
Release.....................................................5-10
Horn............................................................... 3-7
How the System Works...................................3-21
How to Add Coolant to the Coolant
Surge Tank.................................................5-32
How to Add Fluid............................................5-23
How to Check Lubricant...................................5-51
How to Check Power Steering Fluid..................5-37
How to Check........................................5-21, 5-67
How to Inspect...............................................5-19
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-33
Hydroplaning..................................................4-36
I
If No Steam Is Coming From Your Engine..........5-29
If Steam Is Coming From Your Engine...............5-28
If the Light is Flashing.....................................3-45
If the Light Is On Steady.................................3-46
If You Are Stuck in Sand, Mud, Ice or Snow.......4-48If You Do Decide To Pull A Trailer.....................4-55
If You're Caught in a Blizzard...........................4-45
Ignition Positions.............................................2-20
Ignition Transmission Lock Check......................6-14
Illuminated Visor Vanity Mirrors.........................2-17
Infants and Young Children, Restraints...............1-53
In¯ation -- Tire Pressure..................................5-67
Inspection......................................................6-17
Brake System.............................................6-17
Engine Cooling System................................6-17
Exhaust System..........................................6-16
Fuel System...............................................6-16
Part C - Periodic Maintenance.......................6-16
Steering and Suspension..............................6-16
Transfer Case and Front Axle
(All-Wheel Drive)......................................6-17
Instrument Panel Brightness.............................3-18
Instrument Panel Fuse Block..........................5-103
Instrument Panel.............................................3-34
Cluster.......................................................3-34
Overview..................................................... 3-4
Interior Lamps................................................3-18
J
Jump Starting.................................................5-44
8