check engine CADILLAC ESCALADE 2003 2.G Workshop Manual

67,500 Miles (112 500 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 +.)
75,000 Miles (125 000 km)
qInspect engine air cleaner ®lter or change indicator
(if equipped). If necessary, replace the ®lter. If
vehicle is driven in dusty/dirty conditions, inspect
®lter or 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.)
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 +.)
82,500 Miles (137 500 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 +.)
90,000 Miles (150 000 km)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
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.)
qRotate tires. SeeTire Inspection and Rotation on
page 5-68for proper rotation pattern and additional
information.(See footnote +.)
6-9

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

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals speci®ed to
help ensure the safety, dependability and emission
control performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any ¯uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel ®ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-14for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOLž
coolant mixture if necessary. SeeEngine Coolant
on page 5-24for further details.
Windshield Washer Fluid Level Check
Check the windshield washer ¯uid level in the windshield
washer tank and add the proper ¯uid if necessary.
See
Windshield Washer Fluid on page 5-38for further
details.
At Least Once a Month
Tire In¯ation Check
Visually inspect your tires and make sure tires are
in¯ated to the correct pressures. Don't forget to check
your spare tire. See
Tires on page 5-66for further
details.
Cassette Tape Player Service
Clean cassette tape player. Cleaning should be done
every 50 hours of tape play. SeeAudio System(s)
on page 3-70for further details.
6-11

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.
Starter Switch Check
{CAUTION:
When you are doing this check, the vehicle
could move suddenly. If it does, you or others
could be injured. Follow the steps below.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. See
Parking Brake on page 2-27if
necessary.
Do not use the accelerator pedal, and be ready to
turn off the engine immediately if it starts.
3. Try to start the engine in each gear. The starter
should work only in PARK (P) or NEUTRAL (N).
If the starter works in any other position, your
vehicle needs service.
6-13

Automatic Transmission Shift Lock
Control System Check
{CAUTION:
When you are doing this check, the vehicle
could move suddenly. If it does, you or others
could be injured. Follow the steps below.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a level
surface.
2. Firmly apply the parking brake. See
Parking Brake
on page 2-27if necessary.
Be ready to apply the regular brake immediately if
the vehicle begins to move.3. With the engine off, turn the key to the RUN
position, but don't start the engine. Without applying
the regular brake, try to move the shift lever out
of PARK (P) with normal effort. If the shift lever
moves out of PARK (P), your vehicle needs service.
Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to LOCK in each shift lever position.
·The key should turn to LOCK only when the
shift lever is in PARK (P).
·The key should come out only in LOCK.
6-14

Parking Brake and Automatic
Transmission Park (P) Mechanism
Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
·To check the parking brake's holding ability: With
the engine running and transmission in
NEUTRAL (N), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
·To check the PARK (P) mechanism's holding ability:
With the engine running, shift to PARK (P). Then
release the parking brake followed by the regular
brake.
Underbody Flushing Service
At least every spring, use plain water to ¯ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-15

Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
®ttings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
Transfer Case and Front Axle
(All-Wheel Drive) Inspection
Every 12 months, or at engine oil change intervals,
check front axle and transfer case and add lubricant
when necessary. A ¯uid loss could indicate a problem.
Check and have it repaired, if needed. Check vent
hose at transfer case for kinks and proper installation.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
cha®ng, etc. Inspect disc brake pads for wear and rotors
for surface condition. Inspect other brake parts,
including calipers, parking brake, etc. You may need to
have your brakes inspected more often if your driving
habits or conditions result in frequent braking.
6-17

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

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

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