service indicator BUICK LACROSSE 2008 User Guide

Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In most
cases, you should not have to add anything to the fuel.
However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations. To help keep fuel injectors
and intake valves clean, or if your vehicle experiences
problems due to dirty injectors or valves, look for gasoline
that is advertised as TOP TIER Detergent Gasoline. Also,
your dealer/retailer has additives that will help correct and
prevent most deposit-related problems.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines might be available
in your area. We recommend that you use these
gasolines, if they comply with the specications described
earlier. However, E85 (85% ethanol) and other fuels
containing more than 10% ethanol must not be used in
vehicles that were not designed for those fuels.
Notice:Your vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel
system and also damage plastic and rubber parts.
That damage would not be covered under your
warranty.Some gasolines that are not reformulated for low
emissions can contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. We recommend against
the use of such gasolines. Fuels containing MMT can
reduce the life of spark plugs and the performance of the
emission control system could be affected. The
malfunction indicator lamp might turn on. If this occurs,
return to your dealer/retailer for service.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel might be hard
to nd. Never use leaded gasoline or any other fuel
not recommended in the previous text on fuel. Costly
repairs caused by use of improper fuel would not be
covered by your warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you will be driving.
5-7

{CAUTION:
With the wrong kind of uid in the brake
hydraulic system, the brakes might not work
well. This could cause a crash. Always use the
proper brake uid.
Notice:
Using the wrong uid can badly damage brake
hydraulic system parts. For example, just a
few drops of mineral-based oil, such as engine
oil, in the brake hydraulic system can damage
brake hydraulic system parts so badly that they
will have to be replaced. Do not let someone
put in the wrong kind of uid.
If you spill brake uid on your vehicle’s painted
surfaces, the paint nish can be damaged. Be
careful not to spill brake uid on your vehicle.
If you do, wash it off immediately. SeeWashing
Your Vehicle on page 5-102.
Brake Wear
Your vehicle has disc brakes. Disc brake pads have
built-in wear indicators that make a high-pitched warning
sound when the brake pads are worn and new padsare needed. The sound can come and go or be heard
all the time your vehicle is moving, except when you are
pushing on the brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon the brakes will not work well. That could
lead to an accident. When you hear the brake
wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates can cause a brake
squeal when the brakes are rst applied or lightly
applied. This does not mean something is wrong with
the brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to torque specications in
Capacities and Specifications on page 5-116.
Brake linings should always be replaced as complete
axle sets.
5-47

Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-ination has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator
is combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will ash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the malfunction
exists.
When the malfunction indicator is illuminated, the
system may not be able to detect or signal low tire
pressure as intended. TPMS malfunctions may occur for
a variety of reasons, including the installation of
replacement or alternate tires or wheels on the vehicle
that prevent the TPMS from functioning properly. Always
check the TPMS malfunction telltale after replacing one
or more tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow the
TPMS to continue to function properly.
SeeTire Pressure Monitor Operation on page 5-73, for
additional information.Federal Communications Commission
(FCC) and Industry and Science
Canada
The Tire Pressure Monitor System (TPMS) operates on
a radio frequency and complies with Part 15 of the
FCC Rules. Operation is subject to the following
two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
The Tire Pressure Monitor System (TPMS) operates on
a radio frequency and complies with RSS-210 of
Industry and Science Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
5-72

A
Accessories and Modications............................ 5-3
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-67
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-108
Air Cleaner/Filter, Engine.................................5-23
Air Conditioning......................................3-20, 3-24
Airbag
Passenger Status Indicator...........................3-34
Readiness Light..........................................3-33
Airbag System................................................1-54
What Will You See After an Airbag Inates?....1-60
When Should an Airbag Inate?....................1-59
Where Are the Airbags?...............................1-57
Airbag Systems
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-67
How Does an Airbag Restrain?......................1-60
Passenger Sensing System...........................1-62
Servicing Your Airbag-Equipped Vehicle..........1-66
What Makes an Airbag Inate?......................1-60
Antenna, Backglass.......................................3-104
Antenna, XM™ Satellite Radio Antenna
System.....................................................3-105
Antilock Brake System (ABS)............................. 4-4
Antilock Brake, System Warning Light................3-38Appearance Care
Aluminum or Chrome-Plated Wheels.............5-104
Care of Safety Belts...................................5-102
Chemical Paint Spotting..............................5-106
Cleaning Exterior Lamps/Lenses..................5-103
Fabric/Carpet............................................5-100
Finish Care...............................................5-103
Finish Damage..........................................5-105
Instrument Panel, Vinyl, and Other Plastic
Surfaces...............................................5-101
Interior Cleaning..........................................5-99
Leather....................................................5-101
Sheet Metal Damage..................................5-105
Tires........................................................5-105
Underbody Maintenance.............................5-106
Vehicle Care/Appearance Materials...............5-106
Washing Your Vehicle.................................5-102
Weatherstrips............................................5-102
Windshield and Wiper Blades......................5-104
Appointments, Scheduling Service.....................7-10
Ashtray.........................................................3-20
Audio System.................................................3-84
Audio Steering Wheel Controls....................3-102
Backglass Antenna.....................................3-104
Chime Level Adjustment.............................3-105
Radio Reception........................................3-103
Setting the Clock.........................................3-85
Theft-Deterrent Feature...............................3-101
XM™ Satellite Radio Antenna System...........3-105
1

Instrument Panel (I/P)
Brightness..................................................3-16
Cluster.......................................................3-31
Interior Lamps................................................3-16
J
Jump Starting.................................................5-50
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-64
Lamps
Courtesy....................................................3-16
Exterior Lighting Battery Saver......................3-15
Overhead Console Reading..........................3-18
Rear Assist Handle Reading..........................3-18
Lap Belt........................................................1-28
Lap-Shoulder Belt...........................................1-22
LATCH System
Child Restraints...........................................1-41
License Plate Lamps.......................................5-61Light
Airbag Readiness........................................3-33
Antilock Brake System Warning.....................3-38
Brake System Warning.................................3-37
Change Engine Oil......................................3-45
Charging System.........................................3-36
Check Gas Cap..........................................3-49
Cruise Control.............................................3-46
Door Ajar...................................................3-47
Engine Coolant Temperature Warning.............3-40
Enhanced Traction System (ETS)
Warning Light..........................................3-39
Headlamps Suggested.................................3-47
Highbeam On.............................................3-46
Low Coolant Warning...................................3-41
Low Fuel Warning.......................................3-48
Low Washer Fluid Warning...........................3-47
Malfunction Indicator....................................3-42
Oil Pressure...............................................3-45
Passenger Airbag Status Indicator..................3-34
Reduced Engine Power................................3-46
Safety Belt Reminders..................................3-32
Security.....................................................3-45
Service Vehicle Soon...................................3-48
TCS Warning Light......................................3-38
Tire Pressure..............................................3-41
Traction Control System (TCS) Warning..........3-38
Trunk Ajar..................................................3-47
7

Lighting
Delayed Entry.............................................3-17
Delayed Exit...............................................3-17
Entry.........................................................3-16
Perimeter...................................................3-17
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.......................................4-21
Lockout Protection..........................................2-13
Locks
Automatic Door Lock....................................2-12
Delayed Locking..........................................2-12
Door..........................................................2-11
Lockout Protection.......................................2-13
Power Door................................................2-11
Programmable Automatic Door Unlock............2-12
Rear Door Security Locks.............................2-12
Loss of Control...............................................4-12
Low Coolant Warning Light..............................3-41
Low Fuel Warning Light...................................3-48
Low Washer Fluid Warning Light.......................3-47
Lumbar
Power Controls............................................. 1-3M
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....................................6-16
Maintenance Replacement Parts....................6-13
Maintenance Requirements............................. 6-2
Owner Checks and Services........................... 6-8
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-42
Manual, Using.................................................... iii
Message
DIC Warnings and Messages........................3-58
Mirrors
Automatic Dimming Rearview........................2-39
Automatic Dimming Rearview with OnStar
®.....2-39
Manual Rearview Mirror................................2-38
Manual Rearview Mirror with OnStar
®.............2-38
Outside Convex Mirror.................................2-40
Outside Power Heated Mirrors.......................2-40
Outside Power Mirrors..................................2-40
8

MP3 .............................................................3-97
MyGMLink.com................................................ 7-5
N
Navigation System, Privacy..............................7-19
New Vehicle Break-In......................................2-24
O
Odometer......................................................3-32
Off-Road Recovery..........................................4-11
Oil
Change Engine Oil Light...............................3-45
Engine.......................................................5-18
Pressure Light.............................................3-45
Oil, Engine Oil Life System..............................5-21
Older Children, Restraints................................1-29
Online Owner Center........................................ 7-5
OnStar, Privacy..............................................7-19
OnStar
®System, see OnStar®Manual...............2-43
Operation, Universal Home Remote System........2-48
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-28
Outlets
Accessory Power.........................................3-19Outside
Convex Mirror.............................................2-40
Power Heated Mirrors..................................2-40
Power Mirrors.............................................2-40
Overhead Console Reading Lamps....................3-18
Overheated Engine Protection
Operating Mode..........................................5-32
Owner Checks and Services.............................. 6-8
Owners, Canadian............................................... ii
P
Paint, Damage..............................................5-105
Park Aid........................................................2-41
Park Brake....................................................2-32
Park (P)
Shifting Into................................................2-33
Shifting Out of............................................2-35
Parking
Assist........................................................2-41
Over Things That Burn.................................2-36
Passenger Airbag Status Indicator.....................3-34
Passenger Compartment Air Filter.....................3-29
Passenger Sensing System..............................1-62
Passing.........................................................4-11
PASS-Key
®III ................................................2-22
PASS-Key®III Operation..................................2-22
Perchlorate Materials Requirements, California...... 5-4
9