Buick LaCrosse - 2009 Fuse Box Diagram

Buick LaCrosse - 2009 Fuse Box Diagram

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 flowing 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. See
Fuses
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 first 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. See
Roadside
Assistance Program on page 7-7
for more information.
2-19
Turn and Lane-Change Signals
An arrow on the instrument
panel cluster flashes 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 flash 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 flashes
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. See
Taillamps, Turn Signal, Sidemarker,
Stoplamps and Back-up Lamps on page 5-50
for turn
signal bulb replacement procedures and
Fuses and
Circuit Breakers on page 5-99
for 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
3
comes 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 flip 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
Ashtray(s) and Cigarette Lighter
The vehicle may have a removable ashtray and cigarette
lighter. The cigarette lighter may be located under the
climate control system. The removable ashtray can
be placed into the front console cupholder.
Notice:
If papers, pins, or other flammable items
are put in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage the vehicle. Never put flammable items
in the ashtray.
To use the cigarette lighter, push it in all the way, and
let go. When the heating element is ready, it will pop back
out by itself.
Notice:
Holding a cigarette lighter in while it is
heating will not allow the lighter to back away from
the heating element when it is hot. Damage from
overheating may occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating. Do not use
equipment exceeding maximum amperage rating
of 20 amperes.
Climate Controls
Climate Control System
With this system the heating, cooling and ventilation can
be controlled.
For vehicles with the remote start feature and it is
activated, the climate control system automatically cools
the vehicle if the temperature is greater than 90°F (32°C)
and heats the vehicle if the temperature is below 37°F
(3°C). If the temperature is between 37°F (3°C) and
90°F (32°C), the last control setting selected when the
engine was running will be used. Normal operation and
the last setting of the climate control system will return
after the key is turned to the ON/RUN position.
3-21
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. See
Fuses and Circuit
Breakers on page 5-99
and
Instrument Panel Fuse Block
on page 5-100
for 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. See
Traction Control System (TCS) Warning
Light on page 3-37
. See
StabiliTrak
®
System on
page 4-6
for 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
A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under
Windshield Washer Fluid
on page 5-35
.
B.
Battery on page 5-40
.
C. Remote Positive (+) Terminal. See
Jump Starting on
page 5-41
.
D.
Passenger Compartment Air Filter on page 3-29
.
E.
Underhood Fuse Block on page 5-101
.
F. Engine Coolant Recovery Tank. See
Cooling System
on page 5-24
.
G.
Radiator Pressure Cap on page 5-31
.
H. Power Steering Fluid Reservoir (Out of View).
See
Power Steering Fluid on page 5-34
.
I. Electric Engine Cooling Fans. See
Cooling System
on page 5-24
.
J. Engine Oil Dipstick. See “Checking Engine Oil”
under
Engine Oil on page 5-15
.
K. Engine Oil Fill Cap. See “When to Add Engine Oil”
under
Engine Oil on page 5-15
.
L. Automatic Transmission Fluid Dipstick.
See “Checking the Fluid Level” under
Automatic
Transmission Fluid on page 5-22
.
M. Engine Coolant Bleed Valve. See “How to Add
Coolant to the Radiator” under
Cooling System on
page 5-24
.
N. Brake Master Cylinder Reservoir. See “Brake Fluid”
under
Brakes on page 5-37
.
O.
Engine Air Cleaner/Filter on page 5-20
.
5-13
A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under
Windshield Washer Fluid
on page 5-35
.
B.
Battery on page 5-40
.
C. Underhood Fuse Block. See
Underhood Fuse Block
on page 5-101
.
D. Remote Positive (+) Terminal. See
Jump Starting on
page 5-41
.
E.
Passenger Compartment Air Filter on page 3-29
.
F. Pressure Cap. See
Pressure Cap on page 5-31
.
G. Power Steering Fluid Reservoir. See
Power Steering
Fluid on page 5-34
.
H. Engine Oil Dipstick. See “Checking Engine Oil”
under
Engine Oil on page 5-15
.
I. Engine Oil Fill Cap. See “When to Add Engine Oil”
under
Engine Oil on page 5-15
.
J. Automatic Transmission Fluid Dipstick.
See “Checking the Fluid Level” under
Automatic
Transmission Fluid on page 5-22
.
K. Brake Master Cylinder Reservoir. See “Brake Fluid”
under
Brakes on page 5-37
.
L.
Engine Air Cleaner/Filter on page 5-20
.
M. Engine Coolant Recovery Tank. See
Cooling System
on page 5-24
.
Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop.
See
Engine Compartment Overview on page 5-12
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If you do not do this,
the oil dipstick might not show the actual level.
2. Pull out the dipstick and clean it with a paper towel
or cloth, then push it back in all the way. Remove it
again, keeping the tip down, and check the level.
5-15
Notice:
If you leave the radio or other accessories
on during the jump starting procedure, they could be
damaged. The repairs would not be covered by the
warranty. Always turn off the radio and other
accessories when jump starting the vehicle.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or the accessory power outlets. Turn off the
radio and all lamps that are not needed. This will
avoid sparks and help save both batteries. And it
could save the radio!
4. Open the hood on the other vehicle and locate the
positive (+) and negative (
) terminal locations on
that vehicle.
You will not use your vehicle’s battery for jump
starting. It has a remote positive (+) jump starting
terminal, located on the underhood fuse block,
for that purpose. See
Engine Compartment
Overview on page 5-12
for more information
on location.
If your vehicle has a
V6 engine, to uncover
the remote positive (+)
terminal, press the tab at
the bottom of the fuse block
and lift the cover up.
Always use the remote positive (+) terminal instead
of the positive (+) terminal on the battery.
3.8L V6 Engine
5-42
5. If your vehicle has the
5.3L V8 engine, to
uncover the remote
positive (+) terminal,
remove the fuse
block cover.
{
CAUTION:
An electric fan can start up even when the engine
is not running and can injure you. Keep hands,
clothing and tools away from any underhood
electric fan.
{
CAUTION:
Fans or other moving engine parts can injure you
badly. Keep your hands away from moving parts
once the engine is running.
{
CAUTION:
Using a match near a battery can cause battery
gas to explode. People have been hurt doing this,
and some have been blinded. Use a flashlight if
you need more light.
Be sure the battery has enough water. You do not
need to add water to the battery installed in your
new vehicle. But if a battery has filler caps, be
sure the right amount of fluid is there. If it is low,
add water to take care of that first. If you do not,
explosive gas could be present.
Battery fluid contains acid that can burn you.
Do not get it on you. If you accidentally get it in
your eyes or on your skin, flush the place with
water and get medical help immediately.
5.3L Engine
5-43
Notice:
If the jumper cables are connected or
removed in the wrong order, electrical shorting
may occur and damage the vehicle. The repairs
would not be covered by your warranty. Always
connect and remove the jumper cables in the correct
order, making sure that the cables do not touch
each other or other metal.
A. Heavy, Unpainted Metal Engine Part or Remote
Negative (
) Terminal
B. Good Battery or Remote Positive (+) and Remote
Negative (
) Terminals
C. Dead Battery or Remote Positive (+) Terminal
To disconnect the jumper cables from both vehicles, do
the following:
1. Disconnect the black negative (
) cable from the
vehicle that had the dead battery.
2. Disconnect the black negative (
) cable from the
vehicle with the good battery.
3. Disconnect the red positive (+) cable from the
vehicle with the good battery.
4. Disconnect the red positive (+) cable from the other
vehicle.
5. Return the fuse block cover to its original position.
Headlamp Aiming
The vehicle has a visual optical headlamp aiming
system. The aim has been preset at the factory and
should need no further adjustment.
However, if the vehicle is damaged in a crash, the
headlamp aim may be affected and adjustment may
be necessary.
If oncoming vehicles flash their high beams at you, this
may also mean the vertical aim needs to be adjusted.
It is recommended that the vehicle is taken to your
dealer/retailer for service if the headlamps need to
be re-aimed. It is possible however, to re-aim the
headlamps as described.
Jumper Cable Removal
5-46
Electrical System
Add-On Electrical Equipment
Notice:
Do not add anything electrical to the
vehicle unless you check with your dealer/retailer
first. 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, see
Servicing
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 fixed.
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 fixed 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 fires 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/BKUP
Center High-Mounted Stoplamp,
Back-up Lamp
CLSTR
Cluster
CNSTR
Canister Vent
CRUISE
Cruise Control
5-100
Fuses
Usage
DR/LCK
TRUNK
Door 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, Amplifier
Fuses
Usage
RFA/MOD
Remote Keyless Entry
S/ROOF
Sunroof
STR/WHL/
ILLUM
Steering 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. See
Engine Compartment
Overview on page 5-12
for 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 Inflatable Restraint
10
Auxiliary Power
11
Horn
12
Emission
13
Air Conditioner Clutch
14
Oxygen Sensor
15
Powertrain Control Module
16
Powertrain 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
J-Style Fuses
Usage
25
Air Pump
26
Battery Main 1
27
Battery Main 2
28
Battery Main 3
29
Fan 1
30
Battery Main 4
31
Antilock Brake System Motor
32
Fan 2
33
Starter
Micro-Relays
Usage
34
Headlamp High-Beam
35
Headlamp Driver Module
36
Fog Lamp
37
Ignition 1
38
Air Conditioning Compressor
Micro-Relays
Usage
39
Horn
40
Powertrain
41
Fuel Pump
Mini-Relays
Usage
42
Fan 1
43
Fan 3
44
Windshield Wiper High
45
Windshield Wiper
46
Fan 2
48
Crank
Fuse Puller
Usage
55
Fuse Puller
Diodes
Usage
§
Air Conditioner Compressor Clutch
Diode
5-103
Fuses
Usage
A/C CMPRSR
Air Conditioning Compressor
ABS
Antilock Brake System (ABS)
ABS MTR
ABS Motor
ABS SOL
ABS Solenoid
AIRBAG/
DISPLAY
Airbag, 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 IGN
Engine Control Module (ECM),
Ignition
ECM/TCM
ECM, 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
Fuses
Usage
INJ 1
Injectors 1
INJ 2
Injectors 2
LT HI BEAM
Driver Side High-Beam Headlamps
LT LO BEAM
Driver Side Low-Beam Headlamp
RT HI BEAM
Passenger Side High-Beam
Headlamp
RT LO BEAM
Passenger Side Low-Beam
Headlamp
STRTR
Starter
TRANS
Transmission
WPR
Windshield Wipers
WSW/RVC1
Windshield Washers, Regulated
Voltage Control
Relays
Usage
A/C CMPRSR
Air Conditioning Compressor
FAN 1
Cooling Fan 1
FAN 2
Cooling Fan 2
FAN 3
Cooling Fan 3
FUEL/PUMP
Fuel Pump
HDM
Headlamp Driver Module
PWR/TRN
Powertrain
STRTR
Starter
5-105