2003 CADILLAC ESCALADE trailer

*1Ð Gasoline Engine and Fuel Injection Rail #2.
*2Ð Gasoline Engine and Fuel Injection Rail #1.
*3Ð Gasoline Engine; Oxygen Sensors.
*4Ð Gasoline Engine; Oxygen Sensors.
*5Ð PCM Ignition
Fuses Usage
GLOW PLUG Not Used
CUST FEED Accessory Power
STUD #1 Auxiliary Power
MBECMid Bussed Electrical Center
Power Feed, Front Seats,
Right Doors
BLOWER Front Climate Control Fan
LBECLeft Bussed Electrical Center,
Door Modules, Door Locks,
Auxiliary Power OutletÐRear
Cargo Area and Instrument
Panel
STUD 2Accessory Power/Trailer
Wiring Brake Feed
Fuses Usage
ABS Anti-Lock Brakes
VSES/ECAS Vehicle Stability
IGN A Ignition Power
IGN B Ignition Power
LBEC 1Left Bussed Electrical Center,
Left Doors, Truck Body
Controller, Flasher Module
TRL PARK Parking Lamps Trailer Wiring
RR PARKRight Rear Parking and
Sidemarker Lamps
LR PARKLeft Rear Parking and
Sidemarker Lamps
PARK LP Parking Lamps Relay
STARTER Starter Relay
INTPARK Interior Lamps
STOP LP Stoplamps
TBC BATTTruck Body Controller
Battery Feed
5-109

Fuses Usage
SUNROOF Sunroof
SEO B2 Off-Road Lamps
4WSVent Solenoid
Canister/Quadrasteer Module
Power
RR HVAC Rear Climate Control
AUX PWRAuxiliary Power Outlet Ð
Console
IGN 1 Ignition Relay
PCM 1 Powertrain Control Module
ETC/ECMElectronic Throttle Control,
Electronic Brake Controller
IGN EInstrument Panel Cluster, Air
Conditioning Relay, Turn
Signal/Hazard Switch, Starter
Relay
RTD Ride Control
TRL B/U Backup Lamps Trailer Wiring
PCM BPowertrain Control Module,
Fuel PumpFuses Usage
F/PMP Fuel Pump (Relay)
B/U LPBack-up Lamps, Automatic
Transmission Shift Lock
Control System
RR DEFOG Rear Window Defogger
HDLP-HI Headlamp High Beam Relay
PRIME Not Used
SIRSupplemental In¯atable
Restraint System
FRT PARKFront Parking Lamps,
Sidemarker Lamps
DRLDaytime Running Lamps
(Relay)
SEO IGN Rear Defog Relay
TBC IGN1 Truck Body Controller Ignition
HI HDLP-LT High Beam Headlamp-Left
LH HIDLeft Hand High Intensity
Discharge Lamps
DRL Daytime Running Lamps
5-110

50,000 Miles (83 000 km)
qChange automatic transmission ¯uid and ®lter if the
vehicle is mainly driven under one or more of these
conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, change the ¯uid and ®lter at
100,000 miles (166 000 km).
52,500 Miles (87 500 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-68for proper rotation pattern and additional
information.(See footnote +.)
60,000 Miles (100 000 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-68for proper rotation pattern and additional
information.(See footnote +.)
qReplace fuel ®lter.An Emission Control Service.
(See footnote ².)
qReplace engine air cleaner ®lter on vehicles without
a restriction indicator. If equipped with a change
indicator, inspect the indicator. If necessary, replace
the ®lter. If vehicle is driven in dusty/dirty conditions,
inspect the change indicator (if equipped) at every
engine oil change. See
Engine Air Cleaner/Filter on
page 5-19for more information.An Emission
Control Service. (See footnote ².)
qInspect Evaporative Control System. Check all fuel
and vapor lines and hoses for proper hook-up,
routing and condition. Check that the purge valve
works properly, if equipped. Replace as needed.
An
Emission Control Service. (See footnote ².)
6-8

97,500 Miles (162 500 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-68for proper rotation pattern and additional
information.(See footnote +.)
100,000 Miles (166 000 km)
qInspect spark plug wires.An Emission Control
Service.
qReplace spark plugs.An Emission Control Service.
qChange automatic transmission ¯uid and ®lter if
the vehicle is mainly driven under one or more
of these conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.qIf you haven't used your vehicle under severe service
conditions listed previously and, therefore, haven't
changed your automatic transmission ¯uid, change
both the ¯uid and ®lter.
qInspect Positive Crankcase Ventilation (PCV) valve.
An Emission Control Service.
150,000 Miles (240 000 km)
qDrain, ¯ush and re®ll cooling system (or every
60 months since last service, whichever occurs ®rst).
See
Engine Coolant on page 5-24for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.
An Emission Control Service.
qInspect engine accessory drive belt.An Emission
Control Service.
6-10

D
Daytime Running Lamps..................................3-17
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-30
Delayed Locking.............................................2-10
Diversity Antenna System...............................3-105
Doing Your Own Service Work........................... 5-3
Dome Lamps.................................................3-18
Door.............................................................2-10
Delayed Locking..........................................2-10
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-13
DRIVER DOOR AJAR.....................................3-66
Driver Information Center (DIC).........................3-51
DIC Operation and Displays..........................3-51
DIC Warnings and Messages........................3-62
Driver............................................................1-34
Position, Safety Belt.....................................1-34
Driving Across an Incline..................................4-28
Driving Downhill..............................................4-27
Driving in Mud, Sand, Snow or Ice....................4-30
Driving in Water..............................................4-31
Driving On Grades..........................................4-62
Driving on Off-Road Hills.................................4-23
Driving on Snow or Ice....................................4-44
Driving Through Deep Standing Water...............4-36
Driving Through Flowing Water.........................4-36Driving Uphill..................................................4-24
Driving with a Trailer.......................................4-60
Driving..........................................................4-32
At Night.....................................................4-32
City...........................................................4-37
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-38
Hill and Mountain Roads..............................4-42
In Rain and on Wet Roads...........................4-34
Winter........................................................4-43
DVD Player....................................................3-85
DVD ............................................................3-105
Cleaning the Video Screen..........................3-105
Distortion..................................................3-102
Rear Seat Entertainment System...................3-85
E
Easy Exit Seat...............................................2-51
Electrical System...........................................5-102
Fuses and Circuit Breakers.........................5-103
Power Windows and Other Power Options....5-103
Windshield Wiper Fuses.............................5-103
Emissions Inspection and Maintenance
Programs...................................................3-47
ENGINE COOLANT HOT.................................3-63
Engine Coolant Level Check.............................6-11
Engine Oil Additives........................................5-17
5

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

M
Maintenance, Normal Replacement Parts..........5-114
Maintenance Schedule.....................................6-11
At Each Fuel Fill.........................................6-11
At Least Once a Month................................6-11
At Least Once a Year..................................6-13
At Least Twice a Year..................................6-12
Brake System Inspection..............................6-17
Engine Cooling System Inspection.................6-17
Exhaust System Inspection...........................6-16
Fuel System Inspection................................6-16
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-11
Part C - Periodic MaintenanceInspections......6-16
Part D - Recommended Fluids and
Lubricants...............................................6-18
Part E - Maintenance Record........................6-20
Scheduled Maintenance................................. 6-5
Steering and Suspension Inspection...............6-16
Transfer Case and Front Axle (All-Wheel
Drive) Inspection......................................6-17
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2Maintenance Schedule (cont.)
Maintenance When Trailer Towing.....................4-63
Making Turns.................................................4-61
Malfunction Indicator Light................................3-44
Matching Transmitter(s) to Your Vehicle............... 2-6
Memory Seat.................................................2-50
Message.......................................................3-62
DIC Warnings and Messages........................3-62
Mexico, Central America and Caribbean
Islands/Countries (Except Puerto Rico and
U.S. Virgin Islands) ± Customer Assistance....... 7-5
Mirrors..........................................................2-33
Automatic Dimming Rearview with OnStar
ž,
Compass and Temperature Display.............2-33
Outside Automatic Dimming Mirror with Curb
View Assist.............................................2-37
Outside Convex Mirror.................................2-36
Outside Heated Mirrors................................2-37
Outside Power Mirrors..................................2-36
MyGMLink.com................................................ 7-3
N
Navigation/Radio System..................................3-96
New Vehicle Break-In......................................2-20
Normal Maintenance Replacement Parts...........5-114
10

T
Tachometer....................................................3-36
Taillamps.......................................................5-63
Temperature and Compass Display....................2-33
Testing the Alarm............................................2-19
Theft-Deterrent, Radio....................................3-101
Theft-Deterrent Systems...................................2-18
Content Theft-Deterrent................................2-18
Passlock
ž...................................................2-19
Third Row ± Lap Belt......................................1-43
Third Row......................................................1-70
Throttle, Adjustable..........................................2-22
TIGHTEN FUEL CAP......................................3-65
Tilt Wheel........................................................ 3-7
Tilting the 50/50 Split Bench Seat.....................1-15
Tilting the Full Bench Seat...............................1-21
Tire In¯ation Check.........................................6-11
Tires.............................................................5-66
Buying New Tires........................................5-70
Chains.......................................................5-74
Changing a Flat Tire....................................5-76
If a Tire Goes Flat.......................................5-75
In¯ation -- Tire Pressure...............................5-67
Inspection and Rotation................................5-68
Spare Tire..................................................5-93
Uniform Tire Quality Grading.........................5-71
Wheel Alignment and Tire Balance.................5-72
Wheel Replacement.....................................5-73
When It Is Time for New Tires......................5-69Tires (cont.)
To Use the Engine Coolant Heater....................2-23
Top Strap Anchor Location...............................1-63
Top Strap......................................................1-61
Torque Lock...................................................2-30
Total Weight on Your Vehicle's Tires..................4-59
Tow/Haul Mode Light.......................................3-49
Tow/Haul Mode Selector Button........................2-26
Towing..........................................................4-50
Recreational Vehicle.....................................4-50
Towing a Trailer..........................................4-54
Your Vehicle...............................................4-50
TRACTION ACTIVE........................................3-68
Traction Control Operation................................4-12
TRACTION SYS LIMITED................................3-68
Traction.........................................................3-42
Off Light.....................................................3-42
Road Sensing Suspension.............................. 4-9
Stabilitrak
žSystem......................................4-10
Trailer Brakes.................................................4-59
Trailer Wiring Harness.....................................4-64
Trailer...........................................................4-53
Recommendations.......................................4-53
TRANS HOT IDLE ENGINE.............................3-66
Transfer Case................................................5-50
TRANSMISSION HOT.....................................3-66
Transmission Operation, Automatic....................2-24
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11
16