2003 CADILLAC ESCALADE EXT ECU

At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag
system does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace
blade inserts that appear worn or damaged or that
streak or miss areas of the windshield. Also see
Cleaning the Outside of Your Vehicle on page 5-96.
Spare Tire Check
At least twice a year, after the monthly in¯ation check of
the spare tire determines that the spare is in¯ated to the
correct tire in¯ation pressure, make sure that the spare
tire is stored securely. Push, pull, and then try to rotate or
turn the tire. If it moves, use the wheel wrench/ratchet to
tighten the cable. See
Changing a Flat Tire on page 5-76.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. See
Part D: Recommended Fluids and
Lubricants on page 6-17.
Automatic Transmission Check
Check the transmission ¯uid level; add if needed.
SeeAutomatic Transmission Fluid on page 5-21.
A ¯uid loss may indicate a problem. Check the system
and repair if needed.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
speci®ed in Part D.
Body Lubrication Service
Lubricate all hood latch assembly, secondary latch,
pivots, spring anchor, release pawl, rear compartment
hinges, outer tailgate handle pivot points, latch bolt,
fuel door hinge and folding seat hardware. Part D tells
you what to use. More frequent lubrication may be
required when exposed to a corrosive environment.
6-12

C
Cadillac Owner PrivilegesŸ............................... 7-6
California Fuel.................................................. 5-5
Canada ± Customer Assistance.......................... 7-4
Canadian Owners................................................ ii
Capacities and Speci®cations..........................5-110
Carbon Monoxide...........4-42, 4-52, 2-12, 2-22, 2-39
Care of.........................................................5-95
Safety Belts................................................5-95
Your Cassette Tape Player............................3-99
Your CD and DVD Player...........................3-101
Your CD Changer......................................3-101
Your CDs and DVDs..................................3-101
Cargo Area, All-Weather..................................2-65
Cargo Area Floor Drains..................................2-70
Cargo Cover Panels........................................2-55
Cargo Lamps.................................................3-17
Cargo Panel Storage System............................2-57
Cargo Tie Downs............................................2-65
Cassette Tape Messages.................................3-78
Cassette Tape Player Service...........................6-11
CD Adapter Kits.............................................3-78
CD Changer...................................................3-95
CD Functions.................................................3-97
Center Console Storage Area...........................2-53
Center High-Mounted Stoplamp (CHMSL)...........5-63Center Instrument Panel Fuse Block................5-104
Chains, Tires..................................................5-74
CHANGE ENGINE OIL....................................3-59
Charging System Light....................................3-36
Check Engine Light.........................................3-42
CHECK OIL LEVEL.........................................3-59
CHECK TIRE PRESSURE...............................3-65
CHECK WASHER FLUID.................................3-61
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......................1-65
Check...........................................................3-42
Engine Light...............................................3-42
Chemical Paint Spotting...................................5-98
Child Restraints..............................................1-35
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-31
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-42
Older Children.............................................1-28
Securing a Child Restraint Designed for the
LATCH System........................................1-44
Securing a Child Restraint in a Rear Seat
Position..................................................1-44
3

Child Restraints (cont.)
Securing a Child Restraint in the Right
Front Seat Position...................................1-46
Top Strap Anchor Location............................1-41
Top Strap...................................................1-40
Where to Put the Restraint...........................1-38
Cigarette Lighter.............................................3-23
Cleaning Aluminum Wheels..............................5-97
Cleaning Exterior Lamps/Lenses.......................5-96
Cleaning Fabric/Carpet....................................5-93
Cleaning Glass Surfaces..................................5-95
Cleaning Interior Plastic Components.................5-94
Cleaning Leather............................................5-94
Cleaning the Mirror.........................................2-43
Cleaning the Speaker Covers...........................5-95
Cleaning the Top of the Instrument Panel...........5-94
Cleaning the Windshield and
Wiper Blades..............................................5-97
Cleaning Tires................................................5-98
Cleaning Vinyl................................................5-94
Cleaning Wood Panels....................................5-95
Cleaning........................................................5-93
Inside of Your Vehicle..................................5-93
Outside of Your Vehicle................................5-96
Underbody Maintenance...............................5-98
Video Screen............................................3-101
Weatherstrips..............................................5-95Climate Control System...................................3-24
Automatic...................................................3-24
Climate Controls Personalization....................3-30
Outlet Adjustment........................................3-30
Clock............................................................3-23
Compact Disc Changer Errors..........................3-97
Compact Disc Messages..................................3-81
Compass Calibration.......................................2-43
Compass Variance..........................................2-42
Content Theft-Deferrent....................................2-26
Control of a Vehicle.......................................... 4-6
Coolant.........................................................3-40
Engine Temperature Gage............................3-40
Heater, Engine............................................2-31
Surge Tank Pressure Cap.............................5-27
Cooling System..............................................5-30
Cruise Control Light........................................3-45
Cruise Control................................................3-10
Cupholder(s)..................................................2-52
Current and Past Model Order Forms................7-11
Customer Assistance Information........................ 7-7
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
4

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

Instrument Panel Brightness.............................3-18
Instrument Panel Fuse Block..........................5-102
Instrument Panel.............................................3-32
Cluster.......................................................3-32
Overview..................................................... 3-4
Interior Lamps................................................3-18
J
Jump Starting.................................................5-44
K
Key Lock Cylinders Service..............................6-12
KEYFOB X BATTERY LOW.............................3-63
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Lamps On Reminder.......................................3-16
Lamps...........................................................3-14
Exterior......................................................3-14
Interior.......................................................3-18
Lap-Shoulder Belt...................................1-14, 1-23LATCH System...............................................1-42
Child Restraints...........................................1-42
Securing a Child Restraint Designed for
the LATCH System...................................1-44
Leaving Your Vehicle With the Engine Running......2-37
LEFT REAR DOOR AJAR................................3-63
Light.............................................................3-34
Air Bag Readiness.......................................3-34
Anti-Lock Brake System Warning...................3-39
Brake System Warning.................................3-38
Charging System.........................................3-36
Cruise Control.............................................3-45
Low Fuel Warning.......................................3-46
Malfunction Indicator....................................3-42
Passenger Air Bag Status Indicator................3-35
Safety Belt Reminder...................................3-33
Tow/Haul Mode...........................................3-45
Traction Off................................................3-39
Listening to a DVD.........................................3-81
Loading Your Vehicle for Off-Road Driving..........4-19
Loading Your Vehicle.......................................4-48
Lockout Protection..........................................2-12
Locks............................................................. 2-9
Delayed Locking........................................... 2-9
Door........................................................... 2-8
Lockout Protection.......................................2-12
Power Door.................................................. 2-9
9

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

Radios (cont.)
Radio with Cassette and CD.........................3-67
Rear Seat Audio..........................................3-93
Setting the Time..........................................3-66
Theft-Deterrent............................................3-98
Understanding Reception..............................3-99
RDS Messages..............................................3-72
Reaching Roadside Service............................... 7-7
Reading Lamps..............................................3-19
Rear Axle......................................................5-51
Rear Door Security Locks................................2-12
Rear Safety Belt Comfort Guides......................1-25
Rear Seat Armrest..........................................2-54
Rear Seat Audio Controls.................................3-94
Rear Seat Audio (RSA)....................................3-93
Rear Seat Entertainment System.......................3-82
Rear Seat Operation......................................... 1-6
Rear Seat Passengers, Safety Belts..................1-22
Rear Window Defogger....................................3-29
Rearview Mirror, Automatic Dimming with
OnStar
ž, Compass and Temperature Display.....2-41
Reclining Seatbacks.......................................... 1-4
Recreational Vehicle Towing.............................4-48
REDUCED ENGINE POWER...........................3-60
Reinstalling the Cargo Cover Panels..................2-61
Remote Control..............................................3-86
Remote Keyless Entry System, Operation............ 2-5
Remote Keyless Entry System............................ 2-4Removing the Flat Tire and Installing the
Spare Tire..................................................5-80
Removing the Spare Tire and Tools...................5-77
Replacement Bulbs.........................................5-64
Replacing Brake System Parts..........................5-42
Replacing Restraint System Parts
After a Crash..............................................1-66
Reporting Safety Defects.................................7-10
Canadian Government..................................7-10
General Motors...........................................7-10
United States Government.............................. 7-9
Reprogramming a Single HomeLink
žButton.......2-52
Resetting Defaults...........................................2-52
Restraint System Check...................................6-12
Checking Your Restraint Systems...................1-65
Replacing Restraint System Parts
After a Crash..........................................1-66
Restraint Systems...........................................1-65
Checking....................................................1-65
Replacing Parts...........................................1-66
Retained Accessory Power (RAP)......................2-29
Right Front Passenger Position, Safety Belts.........1-22
RIGHT REAR DOOR AJAR..............................3-63
Road Sensing Suspension................................. 4-9
Roadside Service Availability.............................. 7-6
Roadside Service for the Hearing or
Speech Impaired........................................... 7-7
13

Roadside......................................................... 7-6
Service........................................................ 7-6
Rocking Your Vehicle To Get It Out...................4-46
Running Your Engine While You Are Parked.......2-40
S
Safety Belt.....................................................3-33
Reminder Light............................................3-33
Safety Belts...................................................5-95
Care of......................................................5-95
Driver Position............................................1-14
How to Wear Safety Belts Properly................1-13
Questions and Answers About Safety Belts........1-12
Rear Safety Belt Comfort Guides for
Children and Small Adults.........................1-25
Rear Seat Passengers.................................1-22
Right Front Passenger Position......................1-22
Safety Belt Extender....................................1-27
Safety Belt Use During Pregnancy.................1-21
Safety Belts Are for Everyone......................... 1-8
Safety Chains.................................................4-57
Safety Warnings and Symbols.............................. iii
Scanning the Terrain.......................................4-21
Scheduled Maintenance..................................... 6-5
Seat............................................................... 1-5
Head Restraints............................................ 1-5Seats.............................................................. 1-3
Heated Seats............................................... 1-3
Memory.....................................................2-72
Power Lumbar.............................................. 1-3
Power Seats................................................. 1-2
Rear Seat Operation...................................... 1-6
Reclining Seatbacks...................................... 1-4
Secondary Latch System.................................5-89
Securing a Child Restraint................................1-44
Designed for the LATCH System...................1-44
Rear Seat Position......................................1-44
Right Front Seat Position..............................1-46
Select Button.................................................3-58
SERVICE 4WD...............................................3-60
SERVICE AIR BAG.........................................3-60
SERVICE BRAKE SYSTEM.............................3-60
Service Bulletins.............................................7-10
Service Manuals.............................................7-10
SERVICE RIDE CONTROL..............................3-61
SERVICE STABILITY......................................3-64
SERVICE TIRE MONITOR...............................3-65
Service........................................................... 5-3
Adding Equipment to the Outside of
Your Vehicle.............................................. 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-42
Publications Ordering Information...................7-10
14