towing BUICK LACROSSE 2008 Owner's Manual

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-8
Safety Belts
.............................................. 1-9
Child Restraints
.......................................1-29
Airbag System
.........................................1-54
Restraint System Check
............................1-68
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-11
Windows
.................................................2-17
Theft-Deterrent Systems
............................2-20
Starting and Operating Your Vehicle
...........2-24
Mirrors
....................................................2-38
Object Detection Systems
..........................2-41
OnStar
®System
......................................2-43
Universal Home Remote System
................2-47
Storage Areas
.........................................2-52
Sunroof
..................................................2-54
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-20
Warning Lights, Gages, and Indicators
........3-30
Driver Information Center (DIC)
..................3-49
Audio System(s)
.......................................3-84Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-27
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Headlamp Aiming
.....................................5-56
Bulb Replacement
....................................5-58
Windshield Replacement
...........................5-62
Windshield Wiper Blade Replacement
.........5-62
Tires
......................................................5-63
Appearance Care
.....................................5-99
Vehicle Identication
...............................5-107
Electrical System
....................................5-108
Capacities and Specications
...................5-116
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
2008 Buick LaCrosse Owner ManualM

The passenger sensing system may suppress the
airbag deployment when liquid soaks into the seat.
If this happens, the off indicator in the passenger airbag
status indicator and the airbag readiness light on the
instrument panel will be lit. The system should resume
normal operation after the seat is allowed to dry.
If the system operates incorrectly after the seat has
dried, have your dealer/retailer check the system.
{CAUTION:
Stowing of articles under the passenger’s
seat or between the passenger’s seat cushion
and seatback may interfere with the proper
operation of the passenger sensing system.
Servicing Your Airbag-Equipped
Vehicle
Airbags affect how your vehicle should be serviced.
There are parts of the airbag system in several places
around your vehicle. Your dealer/retailer and the service
manual have information about servicing your vehicle
and the airbag system. To purchase a service manual,
seeService Publications Ordering Information on
page 7-16.
{CAUTION:
For up to 10 seconds after the ignition is turned
off and the battery is disconnected, an airbag
can still inate during improper service. You
can be injured if you are close to an airbag when
it inates. Avoid yellow connectors. They are
probably part of the airbag system. Be sure to
follow proper service procedures, and make
sure the person performing work for you is
qualied to do so.
1-66

Starting and Operating Your
Vehicle
New Vehicle Break-In
Notice:Your vehicle does not need an elaborate
break-in. But it will perform better in the long run if
you follow these guidelines:
Do not drive at any one constant speed, fast or
slow, for the rst 500 miles (805 km). Do not
make full-throttle starts. Avoid downshifting to
brake or slow the vehicle.
Avoid making hard stops for the rst 200 miles
(322 km) or so. During this time the new brake
linings are not yet broken in. Hard stops
with new linings can mean premature wear and
earlier replacement. Follow this breaking-in
guideline every time you get new brake linings.
Do not tow a trailer during break-in. SeeTowing
a Trailer on page 4-28for the trailer towing
capabilities of your vehicle and more
information.
Following break-in, engine speed and load can be
gradually increased.
Ignition Positions
With the ignition key in the
ignition, the key can be
turned to four different
positions.
In order to shift out of PARK (P), the ignition must be in
ON/RUN and the regular brake pedal must be applied.
Notice:Using a tool to force the key from the
ignition switch could cause damage or break the
key. Use the correct key and turn the key only with
your hand. Make sure the key is in all the way. If
none of this works, then your vehicle needs service.
A (LOCK/OFF):This is the only position in which the
ignition key can be inserted or removed. This position
locks the ignition and transmission. It is a theft-deterrent
feature.
2-24

{CAUTION:
It is dangerous to get out of your vehicle if the
shift lever is not fully in PARK (P) with the
parking brake rmly set. Your vehicle can roll.
Do not leave your vehicle when the engine is
running unless you have to. If you have left the
engine running, the vehicle can move
suddenly. You or others could be injured. To
be sure your vehicle will not move, even when
you are on fairly level ground, always set your
parking brake and move the shift lever to
PARK (P). SeeShifting Into PARK (P) on
page 2-33. If you are pulling a trailer, see
Towing a Trailer on page 4-28.
The positions for the shift lever are:
PARK (P): This position locks the vehicle’s front
wheels. It is the best position to use when the engine is
started because the vehicle cannot move easily.Make sure the shift lever is fully in PARK (P) before
starting the engine. The vehicle has an electronic shift
lock release system. You must fully apply the regular
brakes before shifting from PARK (P) when the ignition
is in ON/RUN. If you cannot shift out of PARK (P),
ease pressure on the shift lever by pushing it all the way
into PARK (P) as you maintain brake application.
Then move the shift lever into another gear. SeeShifting
Out of PARK (P) on page 2-35
Notice:Shifting to REVERSE (R) while your vehicle
is moving forward could damage the transmission.
The repairs would not be covered by your warranty.
Shift to REVERSE (R) only after your vehicle is
stopped.
REVERSE (R): Use this gear to back up.
To rock the vehicle back and forth in order to get it out
of snow, ice, or sand without damaging the transmission,
seeIf Your Vehicle is Stuck in Sand, Mud, Ice, or
Snow on page 4-20.
NEUTRAL (N):In this position, the engine does not
connect with the wheels. To restart when you are
already moving, use NEUTRAL (N) only. Also, use
NEUTRAL (N) when the vehicle is being towed.
2-30

{CAUTION:
Shifting into a drive gear while the engine is
running at high speed is dangerous. Unless
your foot is rmly on the brake pedal, your
vehicle could move very rapidly. You could
lose control and hit people or objects. Do not
shift into a drive gear while your engine is
running at high speed.
Notice:Shifting out of PARK (P) or NEUTRAL (N)
with the engine running at high speed may damage
the transmission. The repairs would not be
covered by your warranty. Be sure the engine is not
running at high speed when shifting your vehicle.
Notice:Driving your vehicle if you notice that it is
moving slowly or not shifting gears as you increase
speed may damage the transmission. Have your
vehicle serviced right away. You can drive in
SECOND (2) when you are driving less than 35 mph
(55 km/h) and DRIVE (D) for higher speeds until then.DRIVE (D): This position is for normal driving. It
provides the best fuel economy for your vehicle. If more
power is needed for passing, and the vehicle is:Going less than 35 mph (55 km/h), push the
accelerator pedal about halfway down.
Going about 35 mph (55 km/h) or more, push the
accelerator pedal all the way down.
By doing this the vehicle will automatically shift down
to the next gear and have more power.
Downshifting the transmission in slippery road conditions
could result in skidding, see Skidding underLoss of
Control on page 4-12.
THIRD (3):This position is also used for normal driving.
However it reduces vehicle speed more than DRIVE (D)
without using your brakes. You might choose THIRD
(3) instead of DRIVE (D) when driving on hilly, winding
roads, when towing a trailer, so there is less shifting
between gears and when going down a steep hill.
2-31

Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Make sure
that the parking brake is fully released and the brake
warning light is off before driving.
If you are towing a trailer and parking on any hill, see
Towing a Trailer on page 4-28. That section shows what
to do rst to keep the trailer from moving.
Shifting Into PARK (P)
{CAUTION:
It can be dangerous to get out of your vehicle
if the shift lever is not fully in PARK (P) with
the parking brake rmly set. Your vehicle can
roll. If you have left the engine running, the
vehicle can move suddenly. You or others
could be injured. To be sure your vehicle will
not move, even when you are on fairly level
ground, use the steps that follow. If you are
pulling a trailer, seeTowing a Trailer on
page 4-28.
Steering Column Shift Lever
If your vehicle has a steering column shift lever, use this
procedure to shift the vehicle into PARK (P):
1. Hold the brake pedal down with your right foot.
2. Move the shift lever into PARK (P) by pulling the
shift lever toward you and moving it up as far as it
will go.
3. With your right foot still holding the brake pedal
down, set the parking brake. SeeParking Brake
on page 2-32for more information.
4. Turn the ignition key to LOCK/OFF.
5. Remove the key and take it with you. If you can
leave your vehicle with the ignition key in your
hand, your vehicle is in PARK (P).
2-33

Console Shift
If your console shift lever cannot be moved out of
PARK (P)
1. Apply and maintain the regular brakes.
2. Turn the ignition to ON/RUN position. SeeIgnition
Positions on page 2-24for more information.
3. Let up on the shift lever and make sure the shift
lever is pushed all the way into PARK (P).
4. Press the shift lever button
5. Then, move the shift into the desired gear.
If you still cannot move the shift lever from PARK (P),
consult your dealer/retailer or a professional towing
service.
Column Shift
If your column shift lever cannot be moved out of
PARK (P)
1. Apply and maintain the regular brakes.
2. Turn the ignition key to the ON/RUN position. See
Ignition Positions on page 2-24for more information.3. Shift out of the PARK (P) position to the
NEUTRAL (N) position.
4. Move the vehicle to a safe location.
If you still cannot move the shift lever from PARK (P),
consult your dealer/retailer or a professional towing
service.
Parking Over Things That Burn
{CAUTION:
Things that can burn could touch hot exhaust
parts under your vehicle and ignite. Do not
park over papers, leaves, dry grass, or other
things that can burn.
2-36

{CAUTION:
It can be dangerous to get out of your vehicle if
the shift lever is not fully in PARK (P) with the
parking brake rmly set. Your vehicle can roll.
Do not leave your vehicle when the engine is
running unless you have to. If you have left the
engine running, the vehicle can move suddenly.
You or others could be injured. To be sure your
vehicle will not move, even when you are on
fairly level ground, always set the parking brake
and move the shift lever to PARK (P).
Follow the proper steps to be sure your vehicle will not
move. SeeShifting Into PARK (P) on page 2-33.
If you are parking on a hill and if you are pulling a trailer,
also seeTowing a Trailer on page 4-28.
Mirrors
Manual Rearview Mirror
When you are sitting in a comfortable driving position,
adjust the mirror so you can see clearly behind your
vehicle. Grip the mirror in the center to move it up
or down and side to side. The day/night adjustment
allows you to adjust the mirror to avoid glare from the
lamps behind you. Push the tab forward for daytime use
and pull it for nighttime use.
Manual Rearview Mirror
with OnStar
®
The vehicle may have a mirror with Onstar®. While sitting
in a comfortable driving position, adjust the mirror so you
can see clearly behind your vehicle. Hold the mirror in the
center to move it up and down and side to side.
The mirror has a day/night control located at the bottom.
Turn the control to the right for the night position to
reduce glare from other vehicles’ headlamps. Turn the
control to the front for the day position.
2-38

Brake System Warning Light
Your vehicle’s hydraulic brake system is divided into two
parts. If one part is not working, the other part can
still work and stop you. For good braking, though, you
need both parts working well.
If the warning light comes on and the parking brake is
not applied, there is a brake problem. Have your
brake system inspected right away.
This light should come on
briey when you turn the
ignition key to ON/RUN.
If it does not come on then, have it xed so it will be
ready to warn you if there is a problem.
When the ignition is on, the brake system warning light
will also come on when you set your parking brake.
The light will stay on if your parking brake does
not release fully. If it stays on after your parking brake is
fully released, it means you have a brake problem.If the light comes on while you are driving, a chime will
sound and you should pull off the road and stop
carefully. You may notice that the pedal is harder to
push. Or, the pedal may go closer to the oor. It
may take longer to stop. If the light is still on, have the
vehicle towed for service. SeeTowing Your Vehicle
on page 4-27.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light is
on. Driving with the brake system warning light
on can lead to an accident. If the light is still
on after you have pulled off the road and
stopped carefully, have the vehicle towed for
service.
3-37

This light comes on, as a check to show it is working,
when the ignition is turned ON/RUN but the engine is not
running. If the light does not come on, have it repaired.
This light also comes on during a malfunction in
one of two ways:
Light Flashing— A misre condition has been
detected. A misre increases vehicle emissions and
could damage the emission control system on your
vehicle. Diagnosis and service might be required.
Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service might be required.
If the Light is Flashing
The following can prevent more serious damage to your
vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible.
If the light stops ashing and remains on steady, see “If
the Light Is On Steady” following.If the light continues to ash, when it is safe to do so,
stop the vehicle. Find a safe place to park the vehicle.
Turn the ignition off, wait at least 10 seconds, and restart
the engine. If the light remains on steady, see “If the
Light Is On Steady” following. If the light is still ashing,
follow the previous steps and see your dealer/retailer
for service as soon as possible.
If the Light Is On Steady
You might be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install
the cap. SeeFilling the Tank on page 5-8. The
diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missing
fuel cap allows fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed should
turn the light off.
Did you just drive through a deep puddle of water?
If so, your vehicle’s electrical system might be wet.
The condition is usually corrected when the electrical
system dries out. A few driving trips should turn the
light off.
3-43