fuel additives BUICK LESABRE 2005 Owner's Manual

Service............................................................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of
Your Vehicle..............................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Oil Life System..................................5-17
Engine Air Cleaner/Filter................................5-18
Automatic Transaxle Fluid..............................5-21
Engine Coolant.............................................5-24
Radiator Pressure Cap..................................5-26
Engine Overheating.......................................5-26
Cooling System............................................5-28
Power Steering Fluid.....................................5-34
Windshield Washer Fluid................................5-34
Brakes........................................................5-35Battery........................................................5-38
Jump Starting...............................................5-40
Headlamp Aiming...........................................5-45
Headlamp Horizontal Aiming...........................5-46
Headlamp Vertical Aiming..............................5-47
Bulb Replacement..........................................5-48
Halogen Bulbs..............................................5-48
Headlamps..................................................5-49
Front Turn Signal Lamps...............................5-50
Taillamps, Turn Signal, and Stoplamps............5-50
Taillamps and Back-Up Lamps.......................5-51
Replacement Bulbs.......................................5-53
Windshield Wiper Blade Replacement..............5-53
Tires..............................................................5-54
Tire Sidewall Labelling...................................5-55
Tire Terminology and Denitions.....................5-57
Ination - Tire Pressure.................................5-60
Check Tire Pressure System..........................5-62
Tire Inspection and Rotation...........................5-63
When It Is Time for New Tires.......................5-64
Buying New Tires.........................................5-65
Uniform Tire Quality Grading..........................5-66
Wheel Alignment and Tire Balance..................5-67
Wheel Replacement......................................5-67
Tire Chains..................................................5-68
Section 5 Service and Appearance Care
5-1

Gasoline Specications
It is recommended that gasoline meet specications
which were developed by automobile manufacturers
around the world and contained in the World-Wide Fuel
Charter which is available from the Alliance of
Automobile Manufacturers at
www.autoalliance.org/fuel_charter.htm. Gasoline
meeting these specications could provide improved
driveability and emission control system performance
compared to other gasoline.
California Fuel
If your vehicle is certied to meet California Emission
Standards (see the underhood emission control label), it
is designed to operate on fuels that meet California
specications. If this fuel is not available in states
adopting California emissions standards, your vehicle
will operate satisfactorily on fuels meeting federal
specications, but emission control system performance
may be affected. The malfunction indicator lamp may
turn on and your vehicle may fail a smog-check test. See
Malfunction Indicator Lamp on page 3-41. If this
occurs, return to your authorized GM dealer for
diagnosis. If it is determined that the condition is caused
by the type of fuel used, repairs may not be covered
by your warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work properly. In
most cases, you should not have to add anything to your
fuel. However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations. General Motors
recommends that you buy gasolines that are advertised
to help keep fuel injectors and intake valves clean. If your
vehicle experiences problems due to dirty injectors or
valves, try a different brand of gasoline. Also, your GM
dealer has additives that will help correct and prevent
most deposit-related problems.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available in
your area to contribute to clean air. General Motors
recommends that you use these gasolines, particularly if
they comply with the specications described earlier.
Notice:Your vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage would not be covered under
your warranty.
5-6

A
Accessory Power Outlets.................................3-22
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-88
Air Cleaner/Filter, Engine.................................5-18
Air Conditioning......................................3-24, 3-27
Airbag
Readiness Light..........................................3-37
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-47
How Does an Airbag Restrain?......................1-53
Servicing Your Airbag-Equipped Vehicle..........1-56
What Makes an Airbag Inate?......................1-53
What Will You See After an Airbag Inates?....1-54
When Should an Airbag Inate?....................1-52
Where Are the Airbags?...............................1-50
Antenna, Diversity Antenna System...................3-84
Antenna, XM™ Satellite Radio
Antenna System..........................................3-85
Anti-Lock Brake System (ABS)........................... 4-7
Anti-Lock Brake, System Warning Light..............3-39
Appearance Care............................................5-78
Aluminum or Chrome-Plated Wheels..............5-84
Care of Safety Belts....................................5-82
Chemical Paint Spotting...............................5-85
Cleaning Exterior Lamps/Lenses....................5-83
Fabric/Carpet..............................................5-79
Finish Care.................................................5-83
Finish Damage............................................5-85Appearance Care (cont.)
Glass Surfaces............................................5-81
Instrument Panel.........................................5-81
Interior Plastic Components...........................5-81
Leather......................................................5-81
Sheet Metal Damage...................................5-85
Tires..........................................................5-84
Underbody Maintenance...............................5-85
Vehicle Care/Appearance Materials................5-86
Vinyl..........................................................5-81
Washing Your Vehicle...................................5-82
Weatherstrips..............................................5-82
Windshield and Wiper Blades........................5-83
Ashtrays........................................................3-23
Audio System(s).............................................3-56
Audio Steering Wheel Controls......................3-81
Care of Your Cassette Tape Player................3-83
Care of Your CD Player...............................3-84
Care of Your CDs........................................3-84
Chime Level Adjustment...............................3-85
Diversity Antenna System.............................3-84
Personal Choice Radio Controls....................3-80
Radio with Cassette and CD.........................3-65
Radio with CD............................................3-57
Setting the Time..........................................3-57
Theft-Deterrent Feature................................3-81
Trunk-Mounted CD Changer..........................3-77
Understanding Radio Reception.....................3-82
XM™ Satellite Radio Antenna System............3-85
1

Engine (cont.)
Coolant......................................................5-24
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-41
Cooling System Inspection............................6-23
Engine Compartment Overview......................5-12
Exhaust.....................................................2-31
Oil .............................................................5-13
Overheating................................................5-26
Starting......................................................2-23
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................. 7-9
Extender, Safety Belt.......................................1-27
Exterior Lamps...............................................3-14
Exterior Lighting Battery Saver..........................3-17
F
Filter
Engine Air Cleaner......................................5-18
Finish Damage...............................................5-85
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-69
Flat Tire, Changing.........................................5-70
Flat Tire, Storing.............................................5-77
Fluid
Automatic Transaxle.....................................5-21
Power Steering...........................................5-34Fluid (cont.)
Windshield Washer......................................5-34
Front Reading Lamps......................................3-19
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-46
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
System Inspection.......................................6-23
Fuses
Engine Compartment Fuse Block...................5-89
Fuses and Circuit Breakers...........................5-88
Rear Underseat Fuse Block..........................5-91G
Gage
Engine Coolant Temperature.........................3-41
Fuel..........................................................3-46
Speedometer..............................................3-36
Tachometer.................................................3-36
Garage Door Opener.......................................2-38
5