maintenance BUICK LACROSSE 2009 Service Manual

Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins give additional technical service
information needed to knowledgeably service General
Motors cars and trucks. Each bulletin contains
instructions to assist in the diagnosis and service of
your vehicle.
Owner Information
Owner publications are written specically for owners
and intended to provide basic operational information
about the vehicle. The owner manual includes the
Maintenance Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner Manual, and
Warranty Booklet.
RETAIL SELL PRICE: $35.00 (U.S.) plus processing fee
Without Portfolio: Owner Manual only.
RETAIL SELL PRICE: $25.00 (U.S.) plus processing fee
Current and Past Model Order Forms
Technical Service Bulletins and Manuals are available
for current and past model GM vehicles. To request
an order form, specify year and model name of
the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:00 AM - 6:00 PM
Eastern Time
For Credit Card Orders Only
(VISA-MasterCard-Discover), visit Helm, Inc. on the
World Wide Web at: helminc.com
Or you can write to:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in U.S. funds. Canadian residents are to make
checks payable in U.S. funds.
7-16

A
Accessories and Modications............................ 5-3
Accessory Power Outlets.................................3-20
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-67
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment............................5-99
Air Cleaner/Filter, Engine.................................5-20
Air Conditioning......................................3-21, 3-25
Airbag
Passenger Status Indicator...........................3-34
Readiness Light..........................................3-33
Airbag System................................................1-53
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-67
How Does an Airbag Restrain?......................1-59
Passenger Sensing System...........................1-61
Servicing Your Airbag-Equipped Vehicle..........1-66
What Makes an Airbag Inate?......................1-59
What Will You See After an Airbag Inates?....1-60
When Should an Airbag Inate?....................1-58
Where Are the Airbags?...............................1-56
Antenna, Backglass.......................................3-113
Antenna, XM™ Satellite Radio
Antenna System........................................3-113
Antilock Brake System (ABS)............................. 4-5
Antilock Brake, System Warning Light................3-36Appearance Care
Aluminum or Chrome-Plated Wheels..............5-96
Care of Safety Belts....................................5-93
Chemical Paint Spotting...............................5-97
Cleaning Exterior Lamps/Lenses....................5-94
Fabric/Carpet..............................................5-91
Finish Care.................................................5-94
Finish Damage............................................5-97
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-92
Interior Cleaning..........................................5-90
Leather......................................................5-92
Sheet Metal Damage...................................
5-97
Tires..........................................................5-97
Underbody Maintenance...............................5-97
Washing Your Vehicle...................................5-93
Weatherstrips..............................................5-93
Windshield and Wiper Blades........................5-95
Appointments, Scheduling Service.....................7-10
Ashtray.........................................................3-21
Audio System.................................................3-82
Audio Steering Wheel Controls....................3-110
Backglass Antenna.....................................3-113
Chime Level Adjustment.............................3-113
Radio Reception........................................3-112
Setting the Clock.........................................3-82
Theft-Deterrent Feature...............................3-110
XM™ Satellite Radio Antenna System...........3-113
1

Chemical Paint Spotting...................................5-97
Child Restraints
Child Restraint Systems...............................1-37
Infants and Young Children...........................1-33
Lower Anchors and Tethers for Children..........1-41
Older Children.............................................1-29
Securing a Child Restraint in a Rear
Seat Position...........................................1-47
Securing a Child Restraint in the Center
Front Seat Position...................................1-49
Securing a Child Restraint in the Right
Front Seat Position...................................1-50
Where to Put the Restraint...........................1-40
Chime Level Adjustment.................................3-113
Cigarette Lighter.............................................3-21
Cleaning
Aluminum or Chrome-Plated Wheels..............5-96
Exterior Lamps/Lenses.................................5-94
Fabric/Carpet..............................................5-91
Finish Care.................................................5-94
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-92
Interior.......................................................5-90
Leather......................................................5-92
Tires..........................................................5-97
Underbody Maintenance...............................5-97
Washing Your Vehicle...................................5-93
Weatherstrips..............................................5-93
Windshield and Wiper Blades........................5-95Climate Control System...................................3-21
Air Filter, Passenger Compartment.................3-29
Dual Automatic............................................3-25
Outlet Adjustment........................................3-28
Clock, Setting.................................................3-82
Collision Damage Repair..................................7-12
Compact Spare Tire........................................5-89
Compass.......................................................3-54
Content Theft-Deterrent....................................
2-17
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-48
Coolant
Engine.......................................................5-25
Engine Temperature Gage............................3-38
Engine Temperature Warning Light.................3-38
Low Warning Light.......................................3-39
Cooling System..............................................5-24
Courtesy Lamps.............................................3-16
Cruise Control................................................3-10
Cruise Control Light........................................3-43
Cupholders....................................................2-47
Customer Assistance Information
Courtesy Transportation................................7-10
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-6
Customer Assistance Offices........................... 7-6
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-7
Reporting Safety Defects to
General Motors........................................7-15
3

Light (cont.)
Tire Pressure..............................................3-39
Traction Control System (TCS)
Warning..................................................3-37
Trunk Ajar..................................................3-45
Lighting
Delayed Entry.............................................3-17
Delayed Exit...............................................3-17
Entry.........................................................3-16
Perimeter...................................................3-18
Theater Dimming.........................................3-17
Lights
Exterior Lamps............................................3-13
Flash-to-Pass............................................... 3-8
High/Low Beam Changer................................ 3-8
Interior Lamps.............................................3-16
Loading Your Vehicle.......................................4-20
Lockout Protection..........................................2-11
Locks
Automatic Door Lock....................................2-10
Delayed Locking..........................................2-10
Door ........................................................... 2-9
Lockout Protection.......................................2-11
Power Door .................................................. 2-9
Programmable Automatic Door Unlock............2-10
Rear Door Security Locks.............................2-11
Loss of Control...............................................4-12
Low Coolant Warning Light..............................3-39Low Fuel Warning Light...................................3-47
Low Washer Fluid Warning Light.......................3-45
Lower Anchors and Tethers for Children.............1-41
Lumbar
Power Controls............................................. 1-3
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-8
At Least Once a Month.................................. 6-9
At Least Once a Year.................................... 6-9
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-15
Maintenance Replacement Parts....................6-13
Maintenance Requirements............................. 6-2
Owner Checks and Services........................... 6-8
Recommended Fluids and Lubricants.............6-11
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Lamp...............................3-40
Message
DIC Warnings and Messages........................3-56
8

Passenger Airbag Status Indicator.....................3-34
Passenger Compartment Air Filter.....................3-29
Passenger Sensing System..............................1-61
Passing.........................................................4-12
PASS-KEY
®III+ Electronic Immobilizer...............2-18
PASS-Key®III Electronic Immobilizer
Operation...................................................2-19
Perchlorate Materials Requirements,
California..................................................... 5-4
Perimeter Lighting...........................................3-18
Phone
Bluetooth
®..................................................3-99
Power
Door Locks.................................................. 2-9
Electrical System.........................................5-99
Lumbar Controls........................................... 1-3
Reduced Engine Light..................................3-44
Retained Accessory.....................................2-22
Seat ............................................................ 1-2
Steering Fluid.............................................5-34
Windows....................................................2-15
Pressure Cap.................................................5-31
Privacy..........................................................7-17
Event Data Recorders..................................7-17
Navigation System.......................................7-18
OnStar .......................................................7-18
Radio Frequency Identication.......................7-18
Programmable Automatic Door Unlock...............2-10
R
Radiator Pressure Cap....................................5-31
Radio Frequency Identication (RFID),
Privacy......................................................7-18
Radio(s)........................................................3-83
Radios
Reception.................................................3-112
Setting the Clock.........................................3-82
Theft-Deterrent..........................................3-110
Rear Assist Handle Reading Lamps...................3-18
Rear Door Security Locks................................2-11
Rearview Mirror, Automatic Dimming..................2-35
Rearview Mirrors.............................................2-35
Reclining Seatbacks.......................................... 1-4
Recommended Fluids and Lubricants.................6-11
Recreational Vehicle Towing.............................4-26
Reduced Engine Power Light............................3-44
Remote Keyless Entry (RKE) System.................. 2-3
Remote Keyless Entry (RKE) System,
Operation..................................................... 2-4
Remote Vehicle Start........................................ 2-7
Removing the Flat Tire and Installing
the Spare Tire.............................................5-79
Removing the Spare Tire and Tools...................5-78
Replacement Bulbs.........................................5-52
Replacement Parts, Maintenance......................6-13
Replacement, Windshield.................................5-53
10

Reporting Safety Defects
Canadian Government..................................7-15
General Motors...........................................7-15
United States Government............................7-15
Restraint System Check
Checking the Restraint Systems....................1-68
Replacing Restraint System Parts
After a Crash..........................................1-69
Retained Accessory Power...............................2-22
Roadside
Assistance Program....................................... 7-7
Rocking Your Vehicle to Get it Out....................4-20
Routing, Engine Drive Belt...............................6-14
Running the Vehicle While Parked.....................2-34
S
Safety Belt Reminders.....................................3-32
Safety Belts
Care of ......................................................5-93
How to Wear Safety Belts Properly................1-13
Lap Belt.....................................................1-28
Lap-Shoulder Belt........................................1-22
Safety Belt Extender....................................1-29
Safety Belt Use During Pregnancy.................1-27
Safety Belts Are for Everyone......................... 1-8Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
Center Seat.................................................. 1-7
Head Restraints............................................ 1-6
Heated Seats............................................... 1-3
Power Lumbar .............................................. 1-3
Power Seats................................................. 1-2
Reclining Seatbacks...................................... 1-4
Split Folding Rear Seat.................................. 1-7
Securing a Child Restraint
Center Front Seat Position............................1-49
Rear Seat Position......................................1-47
Right Front Seat Position..............................1-50
Security Light.................................................3-43
Service........................................................... 5-3
Accessories and Modications......................... 5-3
Adding Equipment to the Outside of
the Vehicle................................................ 5-5
California Perchlorate Materials
Requirements............................................ 5-4
California Proposition 65 Warning.................... 5-4
Doing Your Own Work................................... 5-4
Engine Soon Lamp......................................3-40
Publications Ordering Information...................7-16
Vehicle Soon Light.......................................3-45
Service, Scheduling Appointments.....................7-10
Servicing Your Airbag-Equipped Vehicle..............1-66
11