fuses BUICK LACROSSE 2009 Owner's Manual

Vehicle Symbol Chart
Here are some additional symbols that may be found on
the vehicle and what they mean. For more information
on the symbol, refer to the index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g:Audio Steering Wheel Controls or OnStar®
$:Brake System Warning Light
":Charging System
I:Cruise Control
B:Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.:Fuel Gage
+:Fuses
i:Headlamp High/Low-Beam Changer
j:LATCH System Child Restraints
*:Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
F:Traction Control
M:Windshield Washer Fluid
iv

PASS-Key®III Electronic
Immobilizer Operation
Your vehicle is equipped with PASS-Key®III
(Personalized Automotive Security System)
theft-deterrent system. PASS-Key
®III is a passive
theft-deterrent system.
The system is automatically armed when the key is
removed from the ignition.
You do not have to manually arm or disarm the system.
The security light will come on if there is a problem
with arming or disarming the theft-deterrent system.
PASS-Key III
®uses a transponder in the ignition
key that matches a decoder in the vehicle.
When the PASS-Key
®III system senses that the wrong
key has been inserted into the ignition, it shuts down
the vehicle’s starter and fuel systems. The starter will not
work and fuel will stop owing to the engine.If someone tries to start the vehicle again with the
wrong key, the vehicle will not start. Anyone using a
trial-and-error method to start the vehicle will be
discouraged to do so because of the high number of
electrical key codes.
When trying to start the vehicle, if the engine does not
start and the STARTING DISABLED warning message
on the Driver Information Center (DIC) comes on,
there may be a problem with your theft-deterrent system.
Turn the ignition off and try again.
If the engine still does not start, and the key appears to
be undamaged, try another ignition key. At this time,
you may also want to check the fuse. SeeFuses
and Circuit Breakers on page 5-99. If the engine still
does not start with the other key, the vehicle needs
service. If the vehicle does start, the rst key may be
faulty. See your dealer/retailer who can service the
PASS-Key®III to have a new key made. In an
emergency, contact Roadside Assistance. SeeRoadside
Assistance Program on page 7-7for more information.
2-19

Turn and Lane-Change Signals
An arrow on the instrument
panel cluster ashes in the
direction of the turn or
lane change.
Move the lever up or down to signal a turn.
Raise or lower the lever until the arrow starts to ash to
signal a lane change. Hold it there until the lane change is
complete.
The lever returns to its original position whenever it is
released.
If after signaling a turn or lane change the arrow ashes
rapidly or does not come on, a signal bulb may be
burned out.
Have the bulbs replaced. If the bulb is not burned out,
check the fuse. SeeTaillamps, Turn Signal, Sidemarker,
Stoplamps and Back-up Lamps on page 5-50for turn
signal bulb replacement procedures andFuses and
Circuit Breakers on page 5-99for location of fuses.
A chime will sound if the turn signal is left on for more
than 3/4 mile (1.2 km).
Headlamp High/Low-Beam Changer
To change the headlamps from low beam to high beam,
push the turn signal/multifunction lever away from you.
This instrument panel cluster light
3comes on if
the high beam lamps are turned on while the ignition
is in ON/RUN.
To change the headlamps from high beam to low beam,
pull the turn signal lever toward you.
Flash-to-Pass
This feature lets you use your high-beam headlamps
momentarily to signal a driver in front of you that
you want to pass.
To use it, pull the turn signal/multifunction lever toward
you until the high-beam headlamps come on, then
release the lever to turn them off.
3-8

Accessory Power Outlet(s)
The accessory power outlets enable power electrical
equipment, such as a cellular telephone.
The vehicle has 12-volt outlets. One outlet is located on
the center console below the climate controls. There may
be another outlet located inside the center storage
console or in the ip and fold console.
Open the cover to use the outlet. Be sure to close the
cover when the outlet is not in use.
Notice:Adding any electrical equipment to the
vehicle can damage it or keep other components
from working as they should. The repairs would
not be covered by the vehicle warranty. Do not use
equipment exceeding maximum amperage rating
of 20 amperes. Check with your dealer/retailer before
adding electrical equipment.Certain power accessory plugs may not be compatible
to the power accessory outlet and could result in
blown vehicle or adapter fuses. If you experience a
problem, see your dealer/retailer.
Notice:Improper use of the power outlet can cause
damage not covered by the warranty. Do not hang
any type of accessory or accessory bracket from the
plug because the power outlets are designed for
accessory power plugs only.
Notice:Leaving electrical equipment plugged in for
an extended period of time while the vehicle is off
will drain the battery. Power is always supplied
to the outlets. Always unplug electrical equipment
when not in use and do not plug in equipment
that exceeds the maximum 20 ampere rating.
When adding electrical equipment, be sure to follow
the proper installation instructions included with
the equipment.
3-20

SERVICE PARK LAMPS
This message displays when there is a problem with the
park lamps. Check to see if the park lamp fuse is blown
and replace the fuse if necessary. SeeFuses and Circuit
Breakers on page 5-99andInstrument Panel Fuse Block
on page 5-100for more information. If changing the fuse
does not correct the problem, see your dealer/retailer.
This message only displays while the ignition is in
ON/RUN. Press any of the DIC buttons to acknowledge
this message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine
is turned off. It also re-displays for two seconds if the
message has been acknowledged, but the condition
still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
SERVICE STABILITY SYSTEM
If your vehicle has StabiliTrak, this message displays if
there has been a problem detected with StabiliTrak.
A warning light also appears on the instrument panel
cluster. SeeTraction Control System (TCS) Warning
Light on page 3-37. SeeStabiliTrak
®System on
page 4-6for more information.
If this message turns on while you are driving, pull off
the road as soon as possible and stop carefully. Try
resetting the system by turning the ignition off and then
back on. If this message still stays on or turns back on
again while you are driving, your vehicle needs service.
Have the StabiliTrak System inspected by your dealer/
retailer as soon as possible.
This message displays only while the ignition is in
ON/RUN. Press any of the DIC buttons to acknowledge
this message and to clear it from the screen.
This message continues to display for two seconds
if it has not been acknowledged when the engine
is turned off. It also re-displays for two seconds if the
message has been acknowledged, but the condition
still exists when the engine is turned off.
If the condition still exists, the message re-appears
when the engine is turned on.
3-69

When It Is Time for New Tires.......................5-68
Buying New Tires.........................................5-69
Different Size Tires and Wheels......................5-71
Uniform Tire Quality Grading..........................5-72
Wheel Alignment and Tire Balance..................5-74
Wheel Replacement......................................5-74
Tire Chains..................................................5-75
If a Tire Goes Flat........................................5-76
Changing a Flat Tire.....................................5-76
Removing the Spare Tire and Tools................5-78
Removing the Flat Tire and Installing
the Spare Tire..........................................5-79
Storing a Flat or Spare Tire and
Tools (Base Model)...................................5-84
Storing a Flat or Spare Tire and
Tools (Super Only)....................................5-87
Compact Spare Tire......................................5-89
Appearance Care............................................5-90
Interior Cleaning...........................................5-90
Fabric/Carpet...............................................5-91
Leather.......................................................5-92
Instrument Panel, Vinyl, and Other
Plastic Surfaces........................................5-92
Care of Safety Belts......................................5-93
Weatherstrips...............................................5-93Washing Your Vehicle...................................5-93
Cleaning Exterior Lamps/Lenses.....................5-94
Finish Care..................................................5-94
Windshield and Wiper Blades.........................5-95
Aluminum or Chrome-Plated
Wheels and Trim.......................................5-96
Tires...........................................................5-97
Sheet Metal Damage.....................................5-97
Finish Damage.............................................5-97
Underbody Maintenance................................5-97
Chemical Paint Spotting.................................5-97
Vehicle Identication......................................5-98
Vehicle Identication Number (VIN).................5-98
Service Parts Identication Label.....................5-98
Electrical System............................................5-99
Add-On Electrical Equipment..........................5-99
Headlamp Wiring..........................................5-99
Windshield Wiper Fuses................................5-99
Power Windows and Other Power Options.......5-99
Fuses and Circuit Breakers............................5-99
Instrument Panel Fuse Block........................5-100
Underhood Fuse Block................................5-101
Capacities and Specications........................5-106
Capacities and Specications........................5-106
Section 5 Service and Appearance Care
5-2

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to the
vehicle unless you check with your dealer/retailer
rst. Some electrical equipment can damage
the vehicle and the damage would not be covered
by the vehicle’s warranty. Some add-on electrical
equipment can keep other components from
working as they should.
Add-on equipment can drain the vehicle battery, even if
the vehicle is not operating.
The vehicle has an airbag system. Before attempting to
add anything electrical to the vehicle, seeServicing
Your Airbag-Equipped Vehicle on page 1-66.
Headlamp Wiring
The headlamp wiring is protected by a circuit breaker.
An electrical overload will cause the lamps to go on
and off, or in some cases to remain off. If this happens,
have your headlamp wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a circuit
breaker and a fuse. If the motor overheats due to heavy
snow, etc., the wiper will stop until the motor cools.
If the overload is caused by some electrical problem,
have it xed.
Power Windows and Other Power
Options
Circuit breakers in the fuse block protect the power
windows and other power accessories. When the current
load is too heavy, the circuit breaker opens and closes,
protecting the circuit until the problem is xed or
goes away.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from
short circuits by a combination of fuses, circuit breakers
and in the fuse block wiring itself. This greatly reduces
the chance of res caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Make sure
a bad fuse is replaced with a new one of the identical
size and rating.
5-99

Instrument Panel Fuse Block
The instrument panel fuse
block is located on the
passenger side of the
instrument panel. Pull off
the cover labeled FUSES
to expose the fuse block.
Fuses Usage
CHMSL/BKUPCenter High-Mounted Stoplamp,
Back-up Lamp
CLSTR Cluster
CNSTR Canister Vent
CRUISE Cruise Control
5-100

Fuses Usage
DR/LCK
TRUNKDoor Locks, Trunk
HAZRD Turn Signal, Hazard
HTD/MIR Heated Mirrors
HTD/SEAT Heated Seats
HVAC Climate Control System
INT/ILLUM Interior Lamps
ONSTAR/ALDL OnStar
®, Data Link
PRK/LAMP Park Lamps
PRK/SWTCH Ignition Key Lock
PWR/MIR Power Mirrors
PWR/SEAT Power Seats
PWR/WNDW Power Window
RDO/AMP Radio, Amplier
Fuses Usage
RFA/MOD Remote Keyless Entry
S/ROOF Sunroof
STR/WHL/
ILLUMSteering Wheel Controls Illumination
Relays Usage
RAP Retained Accessory Power
PRK/LAMP Park Lamp Relay
R/DEFOG Rear Defogger Relay
Underhood Fuse Block
Some fuses and relays are located in the underhood
fuse block on the passenger side of the vehicle in
the engine compartment. SeeEngine Compartment
Overview on page 5-12for more information on location.
Notice:Spilling liquid on any electrical components
on the vehicle may damage it. Always keep the
covers on any electrical component.
5-101

Mini-Fuses Usage
1 Driver Side High-Beam
2 Passenger Side High-Beam
3 Driver Side Low-Beam
4 Passenger Side Low-Beam
5 Windshield Wiper
Mini-Fuses Usage
6 Washer/Regulated Voltage Control
7 Fog Lamps
8 Transmission Control Module
9 Supplemental Inatable Restraint
10 Auxiliary Power
11 Horn
12 Emission
13 Air Conditioner Clutch
14 Oxygen Sensor
15 Powertrain Control Module
16Powertrain Control Module,
Electronic Throttle Control
17 Electronic Throttle Control
18 Display
19 Antilock Brake Solenoid
20 Fuel Injector
21 Transmission Solenoid
22 Fuel Pump
23 Antilock Brake System
24 Ignition 3.8L V6 Engines
5-102