2009 BUICK LACROSSE check

Seats and Restraint System............................. 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................. 1-8
Child Restraints
.......................................1-29
Airbag System
.........................................1-53
Restraint System Check
............................1-68
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-9
Windows
.................................................2-14
Theft-Deterrent Systems
............................2-16
Starting and Operating Your Vehicle
...........2-21
Mirrors
....................................................2-35
Object Detection Systems
..........................2-37
OnStar
®System
......................................2-39
Universal Home Remote System
................2-43
Storage Areas
.........................................2-47
Sunroof
..................................................2-48
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-21
Warning Lights, Gages, and Indicators
........3-30
Driver Information Center (DIC)
..................3-47
Audio System(s)
.......................................3-82Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and the Vehicle
....... 4-2
Towing
...................................................4-26
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under
the Hood
.............................................5-10
Headlamp Aiming
.....................................5-46
Bulb Replacement
....................................5-49
Windshield Replacement
...........................5-53
Windshield Wiper Blade Replacement
.........5-53
Tires
......................................................5-54
Appearance Care
.....................................5-90
Vehicle Identication
.................................5-98
Electrical System
......................................5-99
Capacities and Specications
...................5-106
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-15
Vehicle Data Recording and Privacy
...........7-17
Index................................................................ 1
2009 Buick LaCrosse Owner ManualM

Front Seats......................................................1-2
Power Seats..................................................1-2
Power Lumbar ...............................................1-3
Heated Seats.................................................1-3
Reclining Seatbacks........................................1-4
Head Restraints.............................................1-6
Center Seat...................................................1-7
Rear Seats.......................................................1-7
Split Folding Rear Seat...................................1-7
Safety Belts.....................................................1-8
Safety Belts: They Are for Everyone.................1-8
How to Wear Safety Belts Properly.................1-13
Lap-Shoulder Belt.........................................1-22
Safety Belt Use During Pregnancy..................1-27
Lap Belt......................................................1-28
Safety Belt Extender.....................................1-29
Child Restraints.............................................1-29
Older Children..............................................1-29
Infants and Young Children............................1-33
Child Restraint Systems.................................1-37
Where to Put the Restraint.............................1-40Lower Anchors and Tethers for
Children (LATCH)......................................1-41
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
Airbag System...............................................1-53
Where Are the Airbags?................................1-56
When Should an Airbag Inate?.....................1-58
What Makes an Airbag Inate?.......................1-59
How Does an Airbag Restrain?.......................1-59
What Will You See After an Airbag Inates?.....1-60
Passenger Sensing System............................1-61
Servicing Your Airbag-Equipped Vehicle..........
.1-66
Adding Equipment to Your Airbag-Equipped
Vehicle....................................................1-67
Restraint System Check..................................1-68
Checking the Restraint Systems......................1-68
Replacing Restraint System Parts
After a Crash............................................1-69
Section 1 Seats and Restraint System
1-1

{CAUTION:
If either seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatbacks to be sure they
are locked.
To raise the rear seatback, lift the seatback up until it
latches. Push and pull on the seatback to be sure
it is locked in position.
The seatbacks should be kept in the upright, locked
position when they are not being used to extend
the cargo area.
Safety Belts
Safety Belts: They Are for Everyone
This section of the manual describes how to use
safety belts properly. It also describes some things not
to do with safety belts.
{CAUTION:
Do not let anyone ride where a safety belt cannot
be worn properly. In a crash, if you or your
passenger(s) are not wearing safety belts, the
injuries can be much worse. You can hit things
inside the vehicle harder or be ejected from the
vehicle. You and your passenger(s) can be
seriously injured or killed. In the same crash, you
might not be, if you are buckled up. Always fasten
your safety belt, and check that your passenger(s)
are restrained properly too.
1-8

Lap-Shoulder Belt
All seating positions in the vehicle have a lap-shoulder
belt except for the center front passenger position, if
your vehicle has one, which has a lap belt. SeeLap Belt
on page 1-28for more information.
The following instructions explain how to wear a
lap-shoulder belt properly.
1. Adjust the seat, if the seat is adjustable, so you can
sit up straight. To see how, see “Seats” in the Index.
2. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.
The lap-shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
If the shoulder portion of a passenger belt is pulled
out all the way, the child restraint locking feature
may be engaged. If this happens, let the belt
go back all the way and start again.3. Push the latch plate into the buckle until it clicks.
If you nd that the latch plate will not go fully into
the buckle, check if the correct buckle is being used.
Pull up on the latch plate to make sure it is
secure. If the belt is not long enough, seeSafety
Belt Extender on page 1-29.
Position the release button on the buckle so that
the safety belt could be quickly unbuckled if
necessary.
1-22

{CAUTION:
Children who are up against, or very close to, any
airbag when it inates can be seriously injured or
killed. Airbags plus lap-shoulder belts offer
protection for adults and older children, but not for
young children and infants. Neither the vehicle’s
safety belt system nor its airbag system is
designed for them. Young children and infants
need the protection that a child restraint system
can provide. Always secure children properly in
your vehicle. To read how, seeOlder Children on
page 1-29orInfants and Young Children on
page 1-33.There is an airbag
readiness light on the
instrument panel, which
shows the airbag symbol.
The system checks the airbag electrical system for
malfunctions. The light tells you if there is an electrical
problem. SeeAirbag Readiness Light on page 3-33
for more information.
1-55

In many crashes severe enough to inate the airbag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from the
right front passenger airbag.
Airbags are designed to inate only once. After an
airbag inates, you will need some new parts for
the airbag system. If you do not get them, the airbag
system will not be there to help protect you in
another crash. A new system will include airbag
modules and possibly other parts. The service
manual for the vehicle covers the need to replace
other parts.
The vehicle has a crash sensing and diagnostic
module which records information after a crash.
SeeVehicle Data Recording and Privacy on
page 7-17andEvent Data Recorders on page 7-17.
Let only qualied technicians work on the airbag
systems. Improper service can mean that an
airbag system will not work properly. See your
dealer/retailer for service.
Passenger Sensing System
The vehicle has a passenger sensing system for the
right front passenger position. The passenger airbag
status indicator will be visible on the instrument
panel when the vehicle is started.
The words ON and OFF
will be visible during the
system check.
If you are using remote start to start your vehicle from a
distance, if equipped, you may not see the system
check. When the system check is complete, either the
word ON or OFF will be visible. SeePassenger
Airbag Status Indicator on page 3-34.
The passenger sensing system will turn off the right
front passenger frontal airbag under certain conditions.
The driver airbag and roof-rail airbags are not affected
by the passenger sensing system.
1-61

If the On Indicator is Lit for a Child
Restraint
If a child restraint has been installed and the on
indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint from the vehicle.
3. Remove any additional items from the seat such as
blankets, cushions, seat covers, seat heaters, or
seat massagers.
4. Reinstall the child restraint following the directions
provided by the child restraint manufacturer and
refer toSecuring a Child Restraint in the Right Front
Seat Position on page 1-50.5. If, after reinstalling the child restraint and restarting
the vehicle, the on indicator is still lit, turn the
vehicle off. Then slightly recline the vehicle seatback
and adjust the seat cushion, if adjustable, to
make sure that the vehicle seatback is not pushing
the child restraint into the seat cushion.
Also make sure the child restraint is not trapped
under the vehicle head restraint. If this happens,
adjust the head restraint. SeeHead Restraints
on page 1-6.
6. Restart the vehicle.
If the on indicator is still lit, secure the child in the
child restraint in a rear seat position in the vehicle,
and check with your dealer/retailer.
1-64

Restraint System Check
Checking the Restraint Systems
Safety Belts
Now and then, check the safety belt reminder light,
safety belts, buckles, latch plates, retractors, and
anchorages are all working properly.
Look for any other loose or damaged safety belt system
parts that might keep a safety belt system from doing
its job. See your dealer/retailer to have it repaired. Torn
or frayed safety belts may not protect you in a crash.
They can rip apart under impact forces. If a belt is torn
or frayed, get a new one right away.
Make sure the safety belt reminder light is working. See
Safety Belt Reminders on page 3-32for more
information.
Keep safety belts clean and dry. SeeCare of Safety
Belts on page 5-93.
Airbags
The airbag system does not need regularly scheduled
maintenance or replacement. Make sure the airbag
readiness light is working. SeeAirbag Readiness Light
on page 3-33for more information.
Notice:If an airbag covering is damaged, opened,
or broken, the airbag may not work properly. Do
not open or break the airbag coverings. If there are
any opened or broken airbag covers, have the
airbag covering and/or airbag module replaced. For
the location of the airbag modules, seeWhat
Makes an Airbag Inflate? on page 1-59. See your
dealer/retailer for service.
1-68