fuse BUICK LACROSSE 2009 User Guide

A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-35.
B.Battery on page 5-40.
C. Underhood Fuse Block. SeeUnderhood Fuse Block
on page 5-101.
D. Remote Positive (+) Terminal. SeeJump Starting on
page 5-41.
E.Passenger Compartment Air Filter on page 3-29.
F. Pressure Cap. SeePressure Cap on page 5-31.
G. Power Steering Fluid Reservoir. SeePower Steering
Fluid on page 5-34.
H. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-15.
I. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-15.
J. Automatic Transmission Fluid Dipstick.
See “Checking the Fluid Level” underAutomatic
Transmission Fluid on page 5-22.
K. Brake Master Cylinder Reservoir. See “Brake Fluid”
underBrakes on page 5-37.
L.Engine Air Cleaner/Filter on page 5-20.
M. Engine Coolant Recovery Tank. SeeCooling 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.
SeeEngine 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. SeeEngine Compartment
Overview on page 5-12for 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 ashlight 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 ller caps, be
sure the right amount of uid is there. If it is low,
add water to take care of that rst. If you do not,
explosive gas could be present.
Battery uid contains acid that can burn you.
Do not get it on you. If you accidentally get it in
your eyes or on your skin, ush 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 (+) TerminalTo 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 ash 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
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

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/
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