engine coolant BUICK LESABRE 2003 Owner's Guide

90,000 Miles (150 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
(See footnote *.)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote .) (See footnote +.)
93,000 Miles (155 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
(See footnote *.)
96,000 Miles (160 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst.)An Emission Control Service.
(See footnote *.)
qRotate tires. SeeTire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote .) (See footnote +.)
99,000 Miles (165 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
(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 transaxle ¯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 transaxle ¯uid, change both
the ¯uid and ®lter.
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 5-23for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test cooling system and
pressure cap.
An Emission Control Service.
qInspect engine accessory drive belt.An Emission
Control Service.
6-12

82,500 Miles (137 500 km)
qChange engine oil and ®lter (or every 12 months,
whichever occurs ®rst).An Emission Control
Service. (See footnote *.)
qRotate tires. SeeTire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote .) (See footnote +.)
90,000 Miles (150 000 km)
qChange engine oil and ®lter (or every 12 months,
whichever occurs ®rst).An Emission Control
Service. (See footnote *.)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote .) (See footnote +.)
97,500 Miles (162 500 km)
qChange engine oil and ®lter (or every 12 months,
whichever occurs ®rst).An Emission Control
Service. (See footnote *.)
qRotate tires. SeeTire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote .) (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 transaxle ¯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 transaxle ¯uid, change both
the ¯uid and ®lter
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 5-23for 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.
6-16

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 5-13for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOLž
coolant mixture if necessary. SeeEngine Coolant
on page 5-23for 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 5-36for 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 5-58for 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 3-55for further details.
6-17

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identi®ed below by name, part
number or speci®cation may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil with the American
Petroleum Institute Certi®ed for
Gasoline Engines starburst symbol
of the proper viscosity. To determine
the preferred viscosity for your
vehicle's engine, see
Engine Oil on
page 5-13.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
žCoolant. SeeEngine
Coolant on page 5-23.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake ¯uid.
Windshield
Washer SolventGM Optikleen
žWasher Solvent or
equivalent.
Parking Brake
Cable GuidesChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242, or equivalent) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 1052884, in Canada
993294, or equivalent).
Automatic
TransaxleDEXRON
ž-IIII Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring Anchor
and Release
PawlLubriplate Lubricant Aerosol (GM
Part No. U.S. 12346293, in Canada
992723, or equivalent) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and Door
HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Fuel Door,
Glove Box
Door, Console
Door and Rear
Compartment
Lid HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Weatherstrip
ConditioningDielectric Silicone Grease (GM Part
No. U.S. 12345579, in Canada
10953014, or equivalent).
6-23

Automatic Transaxle Shift Lock Control
System Check.............................................6-19
Automatic Transaxle........................................5-21
Fluid..........................................................5-21
Operation...................................................2-25
B
Backing Up....................................................4-40
Battery Load Management...............................3-20
Battery Replacement......................................... 2-8
Battery Warning Light......................................3-37
Battery..........................................................5-40
Before Leaving on a Long Trip.........................4-22
Body Lubrication Service..................................6-18
Brake Fluid....................................................5-37
Brake Wear...................................................5-39
Brake............................................................2-27
Parking......................................................2-27
System Inspection.......................................6-22
System Warning Light..................................3-37
Brakes..........................................................5-37
Braking in Emergencies..................................... 4-8
Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-21
Bulb Replacement...........................................5-52
Front Turn Signal Lamps..............................5-53
Halogen Bulbs............................................5-52
Headlamp Aiming........................................5-47Bulb Replacement (cont.)
Headlamps.................................................5-52
Replacement Bulbs......................................5-56
Taillamps and Back-Up Lamps.......................5-55
Taillamps, Turn Signal, and Stoplamps............5-53
Buying New Tires...........................................5-62C
California Fuel.................................................. 5-5
Canada ± Customer Assistance.......................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Speci®cations............................5-93
Carbon Monoxide...................4-25, 4-35, 2-14, 2-31
Care of.........................................................5-80
Safety Belts................................................5-80
Your Cassette Tape Player............................3-79
Your CD Player...........................................3-80
Your CDs ...................................................3-80
Cassette Tape Messages.................................3-71
Cassette Tape Player Service...........................6-17
CD Adapter Kits.............................................3-71
CD Changer, Trunk-Mounted............................3-73
Center Console Storage Area...........................2-42
Center Front Passenger Position, Safety Belts....1-19
Chains, Tires..................................................5-66
Checking Coolant............................................5-25
Checking Engine Oil........................................5-13
2

Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-54
Check...........................................................3-40
Engine Light...............................................3-40
Tire Pressure System...................................5-59
Chemical Paint Spotting...................................5-83
Child Restraints..............................................1-33
Child Restraint Systems...............................1-33
Infants and Young Children...........................1-29
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-38
Older Children.............................................1-27
Securing a Child Restraint Designed for
the LATCH System...................................1-40
Securing a Child Restraint in a Rear Seat
Position..................................................1-41
Securing a Child Restraint in the Right
Front Seat Position...................................1-43
Top Strap Anchor Location............................1-38
Top Strap...................................................1-37
Where to Put the Restraint...........................1-36
Chime Level Adjustment..................................3-81
Cigarette Lighter.............................................3-23
Cleaning Aluminum or Chrome-Plated Wheels.....5-82
Cleaning Exterior Lamps/Lenses.......................5-81
Cleaning Fabric/Carpet....................................5-77
Cleaning Glass Surfaces..................................5-79
Cleaning Interior Plastic Components.................5-79Cleaning Leather............................................5-79
Cleaning the Top of the Instrument Panel...........5-79
Cleaning Tires................................................5-82
Cleaning Vinyl................................................5-79
Cleaning Windshield and Wiper Blades..............5-81
Cleaning........................................................5-77
Inside of Your Vehicle..................................5-77
Outside of Your Vehicle................................5-80
Underbody Maintenance...............................5-83
Weatherstrips..............................................5-80
Climate Control System...................................3-24
Climate Controls Personalization....................3-31
Dual Automatic............................................3-26
Outlet Adjustment........................................3-30
Steering Wheel Controls...............................3-31
Compact Disc Errors.......................................3-76
Compact Disc Messages..........................3-62, 3-73
Compact Spare Tire........................................5-76
Compass Calibration.......................................2-34
Compass Operation.........................................2-34
Compass Variance..........................................2-34
Content Theft-Deferrent....................................2-18
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-43
Coolant.........................................................3-40
Engine Temperature Gage............................3-40
Heater, Engine............................................2-24
Cooling System..............................................5-28
3

Driving..........................................................4-16
At Night.....................................................4-16
City...........................................................4-20
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-21
Hill and Mountain Roads..............................4-24
In Rain and on Wet Roads...........................4-17
Winter........................................................4-25
Dual Automatic Climate Control System.............3-26
Dual Sun Visor...............................................2-17
E
Electrical System............................................5-85
Add-On Equipment......................................5-85
Fuses and Circuit Breakers...........................5-86
Power Windows and Other Power Options......5-86
Removing the Rear Seat Cushion..................5-89
Emergency Trunk Release Handle.....................2-15
Emissions Inspection and Maintenance
Programs...................................................3-42
Engine Compartment Fuse Block......................5-86
Engine Coolant Level Check.............................6-17
Engine Cooling When Trailer Towing..................4-42
Engine Oil Additives........................................5-16
Engine Oil Level Check...................................6-17
Engine..........................................................5-18
Air Cleaner/Filter.........................................5-18Engine (cont.)
Battery.......................................................5-40
Check and Service Engine Soon Light............3-40
Compartment Overview................................5-12
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-40
Coolant......................................................5-23
Cooling System Inspection............................6-22
Exhaust.....................................................2-31
Oil .............................................................5-13
Overheating................................................5-26
Starting......................................................2-23
Entry Lighting.................................................3-18
Erasing HomeLink
žButtons..............................2-41
Express-Down Window....................................2-17
Extender, Safety Belt.......................................1-26
Exterior Lamps...............................................3-14
Exterior Lighting Battery Saver..........................3-17
Exterior Lights................................................3-53
F
Filter.............................................................5-18
Engine Air Cleaner......................................5-18
Finding a PTY Station (RDS and XMŸ).............3-66
Finding a PTY Station.....................................3-59
Finding a Station....................................3-56, 3-64
Finish Care....................................................5-81
Finish Damage...............................................5-83
5

Flash-To-Pass.................................................. 3-9
Flat Tire, Changing.........................................5-67
Flat Tire........................................................5-66
Fluid.............................................................5-21
Automatic Transaxle.....................................5-21
Power Steering...........................................5-35
Windshield Washer......................................5-36
FM Stereo.....................................................3-79
Following Distance..........................................4-40
Front Reading Lamps......................................3-19
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-45
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
System Inspection.......................................6-22
Fuses...........................................................5-86
Fuses and Circuit Breakers...........................5-86
G
Gage............................................................3-40
Engine Coolant Temperature.........................3-40
Fuel..........................................................3-45Gage (cont.)
Speedometer..............................................3-35
Tachometer.................................................3-35
Garage Door Opener.......................................2-38
Gasoline......................................................... 5-4
Octane........................................................ 5-4
Speci®cations............................................... 5-5
Gate Operator and Canadian Programming........2-41
Glove Box.....................................................2-42
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp High/Low-Beam Changer.................... 3-8
Headlamp......................................................5-47
Aiming.......................................................5-47
Horizontal Aiming.........................................5-49
Vertical Aiming............................................5-50
Headlamps On Reminder.................................3-15
Headlamps....................................................5-52
Bulb Replacement.......................................5-52
Front Turn Signal Lamps..............................5-53
Halogen Bulbs............................................5-52
Head-Up Display (HUD)...................................3-20
Heated Seats................................................... 1-4
6

Highway Hypnosis...........................................4-23
Hill and Mountain Roads..................................4-24
Hitches..........................................................4-38
HomeLink Transmitter, Programming..................2-39
HomeLink
žTransmitter....................................2-38
Hood............................................................5-10
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-7
How to Add Coolant to the Coolant Recovery
Tank ..........................................................5-30
How to Add Coolant to the Radiator..................5-31
How to Add Fluid............................................5-23
How to Check Power Steering Fluid..................5-36
How to Check........................................5-21, 5-59
How to Inspect the Engine Air Cleaner/Filter.......5-18
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-11
Hydroplaning..................................................4-19
I
If No Steam Is Coming From Your Engine..........5-27
If Steam Is Coming From Your Engine...............5-26
If the Light Is Flashing.....................................3-41
If the Light Is On Steady.................................3-42If You Are Stuck in Sand, Mud, Ice or Snow.......4-30
If You Do Decide To Pull A Trailer.....................4-36
If You're Caught in a Blizzard...........................4-28
Ignition Positions.............................................2-22
Ignition Transaxle Lock Check..........................6-20
Inadvertent Power Battery Saver.......................3-19
Infants and Young Children, Restraints...............1-29
In¯ation -- Tire Pressure..................................5-58
Inspection......................................................6-22
Brake System.............................................6-22
Engine Cooling System................................6-22
Exhaust System..........................................6-21
Fuel System...............................................6-22
Part C - Periodic Maintenance.......................6-21
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-21
Throttle System...........................................6-22
Instrument Panel Brightness.............................3-17
Instrument Panel.............................................3-33
Cluster.......................................................3-33
Overview..................................................... 3-4
Interior Lamps................................................3-17
J
Jump Starting.................................................5-42
7

T
Tachometer....................................................3-35
Taillamps.......................................................5-55
Back-Up Lamps...........................................5-55
Turn Signal, and Stoplamps..........................5-53
TCS Warning Light..........................................3-39
Testing the Alarm............................................2-19
Theater Dimming............................................3-18
Theft-Deterrent, Radio.....................................3-77
Theft-Deterrent Systems...................................2-18
Content Theft-Deterrent................................2-18
PASS-Key
žIII Operation..............................2-20
PASS-KeyžIII .............................................2-19
Throttle System Inspection...............................6-22
Tilt Wheel........................................................ 3-7
Tire In¯ation Check.........................................6-17
Tires.............................................................5-58
Buying New Tires........................................5-62
Chains.......................................................5-66
Changing a Flat Tire....................................5-67
Check Tire Pressure System.........................5-59
Compact Spare Tire.....................................5-76
If a Tire Goes Flat.......................................5-66
In¯ation -- Tire Pressure...............................5-58
Inspection and Rotation................................5-60
Uniform Tire Quality Grading.........................5-63Tires (cont.)
Wheel Alignment and Tire Balance.................5-64
Wheel Replacement.....................................5-65
When It Is Time for New Tires......................5-62
To Use the Engine Coolant Heater....................2-24
Top Strap Anchor Location...............................1-38
Top Strap......................................................1-37
Torque Lock...................................................2-30
Total Weight on Your Vehicle's Tires..................4-38
Towing..........................................................4-32
Recreational Vehicle.....................................4-32
Towing a Trailer..........................................4-35
Your Vehicle...............................................4-31
Traction........................................................... 4-9
Control System (TCS).................................... 4-9
Control System Warning Light.......................3-39
Trailer Brakes.................................................4-39
Trailer Wiring Harness.....................................4-39
Transaxle Operation, Automatic.........................2-25
Transaxle.......................................................5-21
Fluid, Automatic...........................................5-21
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-8
Trip Odometer................................................3-35
Trunk Lock Release........................................2-14
Trunk Security Override...................................2-15
14