2009 BUICK LACROSSE ABS

Turn Signals When Towing a Trailer
The arrows on the instrument panel ash whenever
signaling a turn or lane change. Properly hooked up, the
trailer lamps also ash, telling other drivers the vehicle
is turning, changing lanes or stopping.
When towing a trailer, the arrows on the instrument
panel ash for turns even if the bulbs on the trailer are
burned out. For this reason you may think other
drivers are seeing the signal when they are not. It is
important to check occasionally to be sure the
trailer bulbs are still working.
Driving on Grades
Notice:Do not tow on steep continuous grades
exceeding 6 miles (9.6 km). Extended, higher than
normal engine and transmission temperatures may
result and damage the vehicle. Frequent stops are
very important to allow the engine and transmission
to cool.
Reduce speed and shift to a lower gearbeforestarting
down a long or steep downgrade. If the transmission is
not shifted down, the brakes might have to be used so
much that they would get hot and no longer work well.
On a long uphill grade, shift down and reduce the
vehicle’s speed to around 45 mph (70 km/h) to reduce
the possibility of the engine and the transmission
overheating. If the engine does overheat, seeEngine
Overheating on page 5-31.
Parking on Hills
{CAUTION:
Parking the vehicle on a hill with the trailer
attached can be dangerous. If something goes
wrong, the rig could start to move. People can be
injured, and both the vehicle and the trailer can be
damaged. When possible, always park the rig on a
at surface.
If parking the rig on a hill:
1. Press the brake pedal, but do not shift into P (Park)
yet. Turn the wheels into the curb if facing downhill
or into traffic if facing uphill.
2. Have someone place chocks under the trailer
wheels.
3. When the wheel chocks are in place, release the
brake pedal until the chocks absorb the load.
4. Reapply the brake pedal. Then apply the parking
brake and shift the transmission into P (Park).
5. Release the brake pedal.
4-33

1. Lift the lter cover tabs on top of the engine air
cleaner/lter housing.
2. Push the lter cover housing toward the engine.
3. Pull out the lter.
4. Inspect or replace the engine air cleaner/lter.5. To reinstall the cover, position the tabs through
the slots on the housing. If your vehicle has one
of the V6 engines, a notch on the sides of the lter
cover will indicate the correct engagement.
6. Push the cover tabs on top of the housing to lock
the cover in place.
{CAUTION:
Operating the engine with the air cleaner/lter
off can cause you or others to be burned. The air
cleaner not only cleans the air; it helps to stop
ames if the engine backres. If it is not there
and the engine backres, you could be burned.
Do not drive with it off, and be careful working on
the engine with the air cleaner/lter off.
Notice:If the air cleaner/lter is off, a backre
can cause a damaging engine re. And, dirt
can easily get into the engine, which will damage it.
Always have the air cleaner/lter in place when
you are driving. 5.3L V8 Engine
5-21

Do not clean the vehicle using:
A knife or any other sharp object to remove a soil
from any interior surface.
A stiff brush. It can cause damage to the vehicle’s
interior surfaces.
Heavy pressure or aggressive rubbing with a
cleaning cloth. Use of heavy pressure can damage
the interior and does not improve the effectiveness
of soil removal.
Laundry detergents or dishwashing soaps with
degreasers can leave residue that streaks and
attracts dirt. For liquid cleaners, about 20 drops
per gallon (3.78 L) of water is a good guide.
Use only mild, neutral-pH soaps.
Too much cleaner that saturates the upholstery.
Organic solvents such as naptha, alcohol, etc. that
can damage the vehicle’s interior.
Fabric/Carpet
Use a vacuum cleaner with a soft brush attachment
frequently to remove dust and loose dirt. A canister
vacuum with a beater bar in the nozzle may only
be used on oor carpet and carpeted oor mats.
For any soil, always try to remove it rst with plain
water or club soda. Before cleaning, gently remove
as much of the soil as possible using one of the
following techniques:
For liquids: gently blot the remaining soil with a
paper towel. Allow the soil to absorb into the
paper towel until no more can be removed.
For solid dry soils: remove as much as possible
and then vacuum.
To clean:
1. Saturate a lint-free, clean white cloth with water or
club soda.
2. Wring the cloth to remove excess moisture.
3. Start on the outside edge of the soil and gently rub
toward the center. Continue cleaning, using a clean
area of the cloth each time it becomes soiled.
4. Continue to gently rub the soiled area until the
cleaning cloth remains clean.
5. If the soil is not completely removed, use a mild
soap solution and repeat the cleaning process
that was used with plain water.
5-91

Fuses Usage
A/C CMPRSR Air Conditioning Compressor
ABS Antilock Brake System (ABS)
ABS MTR ABS Motor
ABS SOL ABS Solenoid
AIRBAG/
DISPLAYAirbag, Display
AUX PWR Auxiliary Power
Fuses Usage
BATT 1 Battery 1
BATT 2 Battery 2
BATT 3 Battery 3
BATT 4 Battery 4
COMPASS Compass
ECM IGNEngine Control Module (ECM),
Ignition
ECM/TCMECM, Transmission Control
Module (TCM)
EMISSIONS1 Emissions 1
EMISSIONS 2 Emissions 2
ETC/ECM Electronic Throttle Control, ECM
FAN 1 Cooling Fan 1
FAN 2 Cooling Fan 2
FOGLAMPS Fog Lamps
FUEL/PUMP Fuel Pump
HORN Horn
HVAC Climate Control System 5.3L V8 Engine
5-104

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

I
Ignition Positions.............................................2-21
Infants and Young Children, Restraints...............1-33
Ination - Tire Pressure...................................5-61
Instrument Panel
Brightness..................................................3-16
Cluster.......................................................3-31
Overview..................................................... 3-4
Interior Lamps................................................3-16
J
Jump Starting.................................................5-41
K
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Labeling, Tire Sidewall.....................................5-55
Lamp
Malfunction Indicator....................................3-40
Lamps
Courtesy....................................................3-16
Exterior Lighting Battery Saver......................3-15
Overhead Console Reading..........................3-18
Rear Assist Handle Reading..........................3-18Lap Belt........................................................1-28
Lap-Shoulder Belt...........................................1-22
LATCH System for Child Restraints...................1-41
License Plate Lamps.......................................5-52
Light
Airbag Readiness........................................3-33
Antilock Brake System (ABS) Warning............3-36
Brake System Warning.................................3-35
Change Engine Oil......................................3-43
Charging System.........................................3-35
Check Gas Cap..........................................3-47
Cruise Control.............................................3-43
Door Ajar...................................................3-45
Engine Coolant Temperature Warning.............3-38
Enhanced Traction System (ETS)
Warning Light..........................................3-37
Headlamps Suggested.................................3-44
Highbeam On.............................................3-44
Low Coolant Warning...................................3-39
Low Fuel Warning.......................................3-47
Low Washer Fluid Warning...........................3-45
Oil Pressure...............................................3-42
Passenger Airbag Status Indicator..................3-34
Reduced Engine Power................................3-44
Safety Belt Reminders..................................3-32
Security.....................................................3-43
Service Vehicle Soon...................................3-45
TCS Warning Light......................................3-37
7