2003 CADILLAC ESCALADE EXT trailer

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
5-108

50,000 Miles (83 000 km)
qChange automatic transmission ¯uid and ®lter if the
vehicle's GVWR is over 8600 lbs or 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)
qInspect engine air cleaner ®lter change indicator.
If necessary, replace the ®lter. If vehicle is driven
in dusty/dirty conditions, inspect ®lter change
indicator at every engine oil change. See
Engine Air
Cleaner/Filter on page 5-19for more information.An Emission Control Service. (See footnote ².)
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.)
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's GVWR is over 8600 lbs or 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

Customer Assistance Information (cont.)
Reporting Safety Defects to General Motors.......7-10
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the
United States Government.......................... 7-9
Roadside Service.......................................... 7-6
Service Publications Ordering Information........7-10
D
Daytime Running Lamps..................................3-16
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-29
Delayed Locking............................................... 2-9
Doing Your Own Service Work........................... 5-3
Dome Lamps.................................................3-18
Door............................................................... 2-9
Delayed Locking........................................... 2-9
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
DRIVER DOOR AJAR.....................................3-62
Driver Information Center (DIC).........................3-47
DIC Operation and Displays..........................3-47
DIC Warnings and Messages........................3-58Driver............................................................1-14
Position, Safety Belt.....................................1-14
Driving Across an Incline..................................4-28
Driving Downhill..............................................4-26
Driving in Mud, Sand, Snow or Ice....................4-30
Driving in Water..............................................4-31
Driving On Grades..........................................4-59
Driving on Off-Road Hills.................................4-22
Driving on Snow or Ice....................................4-42
Driving Through Deep Standing Water...............4-36
Driving Through Flowing Water.........................4-36
Driving Uphill..................................................4-24
Driving with a Trailer.......................................4-57
Driving..........................................................4-32
At Night.....................................................4-32
City...........................................................4-37
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-38
Hill and Mountain Roads..............................4-40
In Rain and on Wet Roads...........................4-34
Winter........................................................4-42
DVD Player....................................................3-82
DVD ............................................................3-101
Cleaning the Video Screen..........................3-101
Distortion....................................................3-99
Rear Seat Entertainment System...................3-82
5

Headlamp......................................................5-53
Aiming.......................................................5-53
Horizontal Aiming.........................................5-54
Vertical Aiming............................................5-55
Headlamps....................................................5-58
Bulb Replacement.......................................5-57
Front Turn Signal, Sidemarker and
Daytime Running Lamps...........................5-62
Halogen Bulbs............................................5-57
High Intensity Discharge (HID) Lighting...........5-57
Headphones...................................................3-88
Heated Seats................................................... 1-3
Heating.........................................................3-28
Highway Hypnosis...........................................4-40
Hill and Mountain Roads..................................4-40
Hitches..........................................................4-57
HomeLink Transmitter, Programming..................2-49
HomeLink
žTransmitter....................................2-48
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, 5-67How to Inspect...............................................5-19
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-13
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.....................................3-43
If the Light Is On Steady.................................3-43
If You Are Stuck in Sand, Mud, Ice or Snow.......4-46
If You Do Decide To Pull A Trailer.....................4-53
If You're Caught in a Blizzard...........................4-44
Ignition Positions.............................................2-28
Ignition Transmission Lock Check......................6-14
Illuminated Visor Vanity Mirrors.........................2-25
Infants and Young Children, Restraints...............1-31
In¯ation Ð Tire Pressure.................................5-67
Inspection......................................................6-16
Brake System.............................................6-16
Engine Cooling System................................6-16
Exhaust System..........................................6-15
Fuel System...............................................6-16
Part C - Periodic Maintenance.......................6-15
Steering and Suspension..............................6-15
Transfer Case and Front Axle
(All-Wheel Drive)......................................6-16
8

Locks (cont.)
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Loss of Control...............................................4-17
LOW COOLANT LEVEL..................................3-59
Low Fuel Warning Light...................................3-46
Luggage Carrier..............................................2-53
Lumbar........................................................... 1-3
Power Controls............................................. 1-3
M
Maintenance and Cleaning...............................2-66
Maintenance, Normal Replacement Parts..........5-111
Maintenance Schedule.....................................6-11
At Each Fuel Fill.........................................6-11
At Least Once a Month................................6-11
At Least Once a Year..................................6-12
At Least Twice a Year..................................6-12
Brake System Inspection..............................6-16
Engine Cooling System Inspection.................6-16
Exhaust System Inspection...........................6-15
Fuel System Inspection................................6-16
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2Maintenance Schedule (cont.)
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-11
Part C - Periodic Maintenance Inspections......6-15
Part D - Recommended Fluids and
Lubricants...............................................6-17
Part E - Maintenance Record........................6-19
Scheduled Maintenance................................. 6-5
Steering and Suspension Inspection...............6-15
Transfer Case and Front Axle
(All-Wheel Drive) Inspection.......................6-16
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-60
Making Turns.................................................4-58
Malfunction Indicator Light................................3-42
Matching Transmitter(s) to Your Vehicle............... 2-6
Memory Seat.................................................2-72
Message.......................................................3-58
DIC Warnings and Messages........................3-58
Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands) ± Customer Assistance........................ 7-5
Midgate Drain Grate Removal and Cleaning.......2-69
Midgate Operation...........................................2-13
Midgate.........................................................2-12
10

TIGHTEN FUEL CAP......................................3-61
Tilt Wheel........................................................ 3-7
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 Ð Tire Pressure..............................5-67
Inspection and Rotation................................5-68
Spare Tire..................................................5-92
Uniform Tire Quality Grading.........................5-71
Wheel Alignment and Tire Balance.................5-72
Wheel Replacement.....................................5-73
When It Is Time for New Tires......................5-69
To Use the Engine Coolant Heater....................2-31
Top Drain Grates ± Removal and Cleaning.........2-67
Top Strap Anchor Location...............................1-41
Top Strap......................................................1-40
Top-Box Storage.............................................2-70
Torque Lock...................................................2-38
Total Weight on Your Vehicle's Tires..................4-56
Tow/Haul Mode Light.......................................3-45
Tow/Haul Mode Selector Button........................2-34
Towing..........................................................4-48
Recreational Vehicle.....................................4-48
Towing a Trailer..........................................4-52
Your Vehicle...............................................4-48Towing (cont.)
Traction Control Operation................................4-11
TRACTION SYS LIMITED................................3-63
Traction.........................................................3-39
Off Light.....................................................3-39
Road Sensing Suspension.............................. 4-9
Stabilitrak
žSystem......................................4-10
Trailer Brakes.................................................4-57
Trailer Wiring Harness.....................................4-61
Trailer...........................................................4-51
Recommendations.......................................4-51
TRANS HOT IDLE ENGINE.............................3-62
Transfer Case................................................5-50
TRANSMISSION HOT.....................................3-62
Transmission Operation, Automatic....................2-32
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transmission..................................................5-21
Fluid, Automatic...........................................5-21
Temperature Gage.......................................3-40
Transportation Options...................................... 7-8
Traveling to Remote Areas...............................4-20
Trip Information Button....................................3-48
Truck-Camper Loading Information....................4-51
Turn and Lane Change Signals.......................... 3-8
TURN SIGNAL ON.........................................3-61
Turn Signal/Multifunction Lever........................... 3-7
Turn Signals When Towing a Trailer..................4-58
16

U
Ultrasonic Rear Parking Assist (URPA)...............3-20
Underbody Flushing Service.............................6-14
Underhood Fuse Block...................................5-105
Understanding Radio Reception........................3-99
Uniform Tire Quality Grading............................5-71
United States ± Customer Assistance.................. 7-4
Using HomeLink
ž...........................................2-51
Using the Recovery Hooks...............................4-47
V
Vehicle Identi®cation......................................5-100
Number (VIN)............................................5-100
Service Parts Identi®cation Label..................5-100
Vehicle Personalization....................................2-72
Memory Seat..............................................2-72
Vehicle Storage..............................................5-43
Vehicle............................................................ 4-6
Control........................................................ 4-6
Damage Warnings........................................... iv
Loading......................................................4-48
Symbols......................................................... iv
Ventilation Adjustment......................................3-30
Video Screen.................................................3-85
Visors...........................................................2-25
Voltmeter Gage..............................................3-37
W
Warning Lights, Gages and Indicators................3-31
Warnings.......................................................3-58
DIC Warnings and Messages........................3-58
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-96
Weatherstrip Lubrication...................................6-12
Weight of the Trailer Tongue.............................4-56
Weight of the Trailer........................................4-54
What Kind of Engine Oil to Use........................5-16
What to Add..................................................5-40
What to Do with Used Oil................................5-18
What to Use..........................5-25, 5-37, 5-38, 5-51
Wheels..........................................................5-72
Alignment and Tire Balance..........................5-72
Replacement...............................................5-73
When to Add Engine Oil..................................5-15
When to Change Engine Oil
(GM Oil Life System)...................................5-17
When to Check and Change............................5-21
When to Check Lubricant.................................5-51
When to Check Power Steering Fluid................5-37
When to Check..............................................5-67
When to Inspect.............................................5-19
17