Buick LaCrosse - 2008 Fuse Box Diagram

Buick LaCrosse - 2008 Fuse Box Diagram

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 5-109
. 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 7-8
for more information.
It is possible for the PASS-Key
®
III decoder to accept
the transponder value of a new or replacement key.
Up to 10 keys may be programmed for the vehicle.
The following procedure is for programming additional
keys only. If all the programmed keys are lost or do
not operate, see your dealer/retailer or a locksmith who
can service PASS-Key
®
III to have keys made and
programmed to the system.
To program the new key do the following:
1. Verify that the new key has PK3 stamped on it.
2. Insert the master key in the ignition and start
the engine. If the engine will not start, see your
dealer/retailer for service.
3. After the engine has started, turn the key to
LOCK/OFF, and remove the key.
4. Insert the key to be programmed and turn it to
ON/RUN within five seconds of removing the
original key.
5. The SERVICE THEFT SYSTEM warning message
on the DIC will turn off, once the key has been
programmed. It may not be apparent that the
SERVICE THEFT SYSTEM warning message went
on due to how quickly the key is programmed.
6. Repeat Steps 1 through 5 if additional keys are to
be programmed.
If the SERVICE THEFT SYSTEM warning message
appears and stays on the DIC while the vehicle is being
driven, the engine will be able to be restarted if it is turned
off. Your PASS-Key
®
III system, however, is not working
properly and must be serviced by your dealer/retailer.
The vehicle is not protected by the PASS-Key
®
III system
at this time.
If the PASS-Key
®
III key is lost or stolen, see your
dealer/retailer or a locksmith who can service
PASS-Key
®
III to have a new key made.
Do not leave the key or device that disarms or
deactivates the theft deterrent system in the vehicle.
2-23
Turn and Lane-Change Signals
To signal a turn, move the lever up or down. The lever
returns to its original position when the turn is completed.
An arrow on the instrument
panel cluster will flash in
the direction of the
turn or lane change.
To signal a lane change, raise or lower the lever until
the arrow starts to flash. Hold it there until the lane
change is completed. The lever will return to its original
position when released.
Arrows that flash rapidly when signaling for a turn or
lane change, or that fail to work, may indicate a
burned-out signal bulb or fuse. Other drivers will not see
the signal. See
Taillamps, Turn Signal, Sidemarker,
Stoplamps and Back-up Lamps on page 5-59
for turn
signal bulb replacement procedures. Also see
Fuses and
Circuit Breakers on page 5-109
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 light comes on in the
instrument panel cluster 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
Battery Run-Down Protection
This helps prevent the vehicle’s battery from draining
in case the interior courtesy lamps, reading lamps, trunk
lamp, underhood lamp, glove box lamps, or sun visor
vanity lamps, if equipped, are accidently left on.
If any of these lamps are left on while the ignition is off,
they will automatically turn off after 10 minutes. The
lamps will not come back on again until one of the
following occurs:
The ignition is turned on.
The interior lamps control is turned off, then to door
or on.
Accessory Power Outlet(s)
The accessory power outlets enable power electrical
equipment such as a cellular telephone or a CB radio to
be used inside the vehicle.
Your 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 your
vehicle may damage it or keep other components
from working as they should. The repairs would not
be covered by your 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 your 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.
3-19
Ashtray(s) and Cigarette Lighter
Your 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 you put papers, pins, or other flammable
items in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage your 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 you can control the heating, cooling
and ventilation for your vehicle.
If your vehicle has the remote start feature and it is
activated, the climate control system will automatically
cool the vehicle if the temperature is greater than
90°F (32°C) and heat 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.
3-20
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 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 5-109
and
Instrument Panel
Fuse Block on page 5-110
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 3-38
. See
StabiliTrak
®
System
on page 4-8
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.
3-71
A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under
Windshield Washer Fluid on
page 5-44
.
B. Battery. See
Battery on page 5-49
.
C. Remote Positive (+) Terminal. See
Jump Starting on
page 5-50
.
D. Underhood Fuse Block. See
Underhood Fuse Block
on page 5-112
.
E. Passenger Compartment Air Filter. See
Passenger
Compartment Air Filter on page 3-29
.
F. Engine Coolant Recovery Tank. See
Cooling System
on page 5-33
.
G. Power Steering Fluid Reservoir. See
Power Steering
Fluid on page 5-43
.
H. Pressure Cap. See
Radiator Pressure Cap on
page 5-29
.
I. Engine Oil Fill Cap. See “When to Add Engine Oil”
under
Engine Oil on page 5-18
.
J. Electric Engine Cooling Fans. See
Cooling System
on page 5-33
.
K. Engine Oil Dipstick. See “Checking Engine Oil”
under
Engine Oil on page 5-18
.
L. Automatic Transmission Fluid Dipstick. See
“Checking the Fluid Level” under
Automatic
Transmission Fluid on page 5-25
.
M. Brake Master Cylinder Reservoir. See “Brake Fluid”
under
Brakes on page 5-46
.
N. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-23
.
5-13
A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under
Windshield Washer Fluid
on page 5-44
.
B. Battery. See
Battery on page 5-49
.
C. Remote Positive (+) Terminal. See
Jump Starting on
page 5-50
.
D. Passenger Compartment Air Filter. See
Passenger
Compartment Air Filter on page 3-29
.
E. Underhood Fuse Block. See
Underhood Fuse Block
on page 5-112
.
F. Engine Coolant Recovery Tank. See
Cooling System
on page 5-33
.
G. Radiator Pressure Cap. See
Radiator Pressure Cap
on page 5-29
.
H. Power Steering Fluid Reservoir (Out of View). See
Power Steering Fluid on page 5-43
.
I. Electric Engine Cooling Fans. See
Cooling System
on page 5-33
.
J. Engine Oil Dipstick. See “Checking Engine Oil”
under
Engine Oil on page 5-18
.
K. Engine Oil Fill Cap. See “When to Add Engine Oil”
under
Engine Oil on page 5-18
.
L. Automatic Transmission Fluid Dipstick. See
“Checking the Fluid Level” under
Automatic
Transmission Fluid on page 5-25
.
M. Engine Coolant Bleed Valve. See “How to Add
Coolant to the Radiator” under
Cooling System on
page 5-33
.
N. Brake Master Cylinder Reservoir. See “Brake Fluid”
under
Brakes on page 5-46
.
O. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-23
.
5-15
A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under
Windshield Washer Fluid
on page 5-44
.
B. Battery. See
Battery on page 5-49
.
C. Underhood Fuse Block. See
Underhood Fuse Block
on page 5-112
.
D. Remote Positive (+) Terminal. See
Jump Starting on
page 5-50
.
E. Pressure Cap. See
Pressure Cap on page 5-30
.
F. Power Steering Fluid Reservoir. See
Power Steering
Fluid on page 5-43
.
G. Engine Oil Dipstick. See “Checking Engine Oil”
under
Engine Oil on page 5-18
.
H. Engine Oil Fill Cap. See “When to Add Engine Oil”
under
Engine Oil on page 5-18
.
I. Automatic Transmission Fluid Dipstick. See
“Checking the Fluid Level” under
Automatic
Transmission Fluid on page 5-25
.
J. Brake Master Cylinder Reservoir. See “Brake Fluid”
under
Brakes on page 5-46
.
K. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-23
.
L. Engine Coolant Recovery Tank. See
Cooling System
on page 5-33
.
5-17
Notice:
If you leave your radio or other accessories
on during the jump starting procedure, they could
be damaged. The repairs would not be covered by
your warranty. Always turn off your radio and other
accessories when jump starting your 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.
3.8L V6 Engine shown,
3.6L V6 Engine
similar
5-51
Always use the remote positive (+) terminal instead
of the positive (+) terminal on the battery.
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
fillercaps, 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.
CAUTION:
(Continued)
5.3L Engine
5-52
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.
Jumper Cable Removal
5-55
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.
5-109
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.
5-110
Fuses
Usage
DR/LCK
TRUNK
Door Locks, Trunk
RFA/MOD
Remote Keyless Entry
PRK/SWTCH
Ignition Key Lock
CLSTR
Cluster
STR/WHL/
ILLUM
Steering Wheel Controls Illumination
ONSTAR/ALDL
OnStar
®
, Data Link
INT/ILLUM
Interior Lamps
PWR/SEAT
Power Seat
S/ROOF
Sunroof
CNSTR
Canister Vent
HVAC
Climate Control System
HAZRD
Turn Signal, Hazard
PRK/LAMP
Park Lamps
Fuses
Usage
CHMSL/BKUP
Center-High-Mounted
Stoplamp/Back-up Lamps
PWR/MIR
Power Mirrors
CRUISE
Cruise Control
RDO/AMP
Radio, Amplifier
HTD/SEAT
Heated Seats
HTD/MIR
Heated Mirrors
PWR/WNDW
Power Window
Relays
Usage
RAP
Retained Accessory Power
PRK/LAMP
Park Lamp Relay
R/DEFOG
Rear Defogger Relay
5-111
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 your vehicle may damage it. Always keep the
covers on any electrical component.
Mini-Fuses
Usage
1
Driver Side High-Beam
2
Passenger Side High-Beam
Mini-Fuses
Usage
3
Driver Side Low-Beam
4
Passenger Side Low-Beam
5
Windshield Wiper
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
3.6L & 3.8L V6 Engines
5-112
Mini-Fuses
Usage
22
Fuel Pump
23
Antilock Brake System
24
Ignition
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
Micro-Relays
Usage
38
Air Conditioning Compressor
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
5-113
Fuses
Usage
HVAC
Climate Control System
FUEL/PUMP
Fuel Pump
AIRBAG/
DISPLAY
Airbag, Display
COMPASS
Compass
ABS
Antilock Brake System
Fuses
Usage
ETC/ECM
Electronic Throttle Control, Engine
Control Module
A/C CMPRSR
Air Conditioning Compressor
INJ 1
Injectors 1
ECM/TCM
Engine Control Module,
Transmission Control Module
TRANS
Transmission
EMISSIONS1
Emissions 1
ABS SOL
Antilock Brake Solenoid
ECM IGN
Engine Control Module, Ignition
INJ 2
Injectors 2
EMISSIONS2
Emissions 2
WPR
Windshield Wipers
AUX PWR
Auxiliary Power
WSW/RVC
Windshield Washer, Regulated
Voltage Control
LT LO BEAM
Driver Side Low-Beam Headlamp
RT LO BEAM
Passenger Side Low-Beam
Headlamp
FOG LAMPS
Fog Lamps
LT HI BEAM
Driver Side High-Beam Headlamp
5.3L V8 Engine
5-114
Fuses
Usage
HORN
Horn
RT HI BEAM
Passenger Side High-Beam
Headlamp
BATT 4
Battery 4
BATT 1
Battery 1
STRTR
Starter
ABS MTR
Antilock Brake System Motor
BATT 3
Battery 3
BATT 2
Battery 2
FAN 2
Cooling Fan 2
FAN 1
Cooling Fan 1
Relays
Usage
FUEL/PUMP
Fuel Pump
A/C CMPRSR
Air Conditioning Compressor
PWR/TRN
Powertrain
STRTR
Starter
FAN 3
Cooling Fan 3
FAN 2
Cooling Fan 2
FAN 1
Cooling Fan 1
HDM
Headlamp Driver Module
5-115