Buick LaCrosse - 2005 Fuse Box Diagram

Buick LaCrosse - 2005 Fuse Box Diagram

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,
the key may have a damaged transponder. 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 5-88
. 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 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 7-6
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 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 for service.
3. After the engine has started, turn the key to OFF,
and remove the key.
4. Insert the key to be programmed and turn it to RUN
within five seconds of removing the original key.
5. The STARTING DISABLED warning message on
the DIC will turn off, once the key has been
programmed. It may not be apparent that the
STARTING DISABLED 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 STARTING DISABLED 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. 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 or a locksmith who can service PASS-Key
®
III to
have a new key made.
2-20
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
Front Turn Signal and Parking Lamps on page 5-47
and
Taillamps, Turn Signal, Sidemarker, Stoplamps and
Back-up Lamps on page 5-48
for turn signal bulb
replacement procedures. Also see
Fuses and Circuit
Breakers on page 5-88
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.
When the high beams are
on, a light on the
instrument panel cluster
also will be on if the
ignition is in ON.
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
If the URPA system is not functioning properly, the
display will flash red, indicating that there is a problem.
The light will also flash red while driving if a trailer is
attached to your vehicle, or a bicycle or object is on the
back of, or hanging out of your trunk. The light will
continue to flash until the trailer or the object is
removed and your vehicle is driven forward at least
15 mph (25 km/h).
It may also flash red if the ultrasonic sensors are not
kept clean. So be sure to keep your rear bumper free of
mud, dirt, snow, ice and slush or materials such as
paint or the system may not work properly. If after
cleaning the rear bumper and driving forward at least
15 mph (25 km/h), the display continues to flash red, see
your GM dealer. For cleaning instructions, see
Washing
Your Vehicle on page 5-81
.
It may also flash red if your vehicle is moving in
REVERSE (R) at a speed greater than 3 mph (5 km/h).
Other conditions that may affect system performance
include things like the vibrations from a jackhammer or
the compression of airbrakes on a very large truck.
As always, drivers should use care when backing up a
vehicle. Always look behind you, being sure to check
for other vehicles, obstructions and blind spots.
Accessory Power Outlets
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 is equipped with 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. Check with your
dealer 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.
3-20
Oil Pressure Light
If the vehicle has an oil
problem, this light may
stay on after the engine is
started, or come on
while you are driving.
This light indicates that oil is not going through the
engine quickly enough to keep it lubricated. The engine
could be low on oil or could have some other oil
problem. Have it fixed right away.
The oil light could also come on in the following
situations:
The light will come on briefly when the ignition is
turned on to show that it is working properly. If it
does not come on with the ignition on, there may be
a problem with the fuse or bulb. Have it fixed
right away.
Sometimes when the engine is idling at a stop, a
chime will sound and the light may blink on and
off. This is normal.
{
CAUTION:
Do not keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:
Lack of proper engine oil maintenance may
damage the engine. The repairs would not be
covered by your warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
3-42
SERVICE BRAKE APPLY SENSOR
This message will come on when the brake apply
sensor is not functioning properly. The vehicle still has
brakes when this warning message displays, but you
should have the vehicle serviced by your GM dealer as
soon as possible.
This message will display only while the ignition is in
RUN. A chime will sound for two seconds while this
message is displayed. Press any of the DIC buttons
to acknowledge this message and to clear it from
the screen.
This message will continue to display if it has not been
acknowledged when the engine is turned off. It will
also re-display 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 will re-appear
when the engine is turned on.
SERVICE BRAKE SYSTEM
This message will display when a problem with the
brake system has been detected. Have your vehicle
serviced by your GM dealer as soon as possible.
The brake system warning light will also appear on the
instrument panel cluster when this message appears
on the DIC. See
Brake System Warning Light on
page 3-36
.
This message will only display while the ignition is in
RUN. Press any of the DIC buttons to acknowledge this
message and to clear it from the screen.
This message will continue to display for two seconds if
it has not been acknowledged when the engine is
turned off. It will also re-display 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 will re-appear
when the engine is turned on.
SERVICE PARK LAMPS
This message will display 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 5-88
and
Instrument
Panel Fuse Block on page 5-88
for more information. If
changing the fuse does not correct the problem, see
your GM dealer.
This message will only display while the ignition is in
RUN. Press any of the DIC buttons to acknowledge this
message and to clear it from the screen.
This message will continue to display for two seconds if
it has not been acknowledged when the engine is
turned off. It will also re-display 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 will re-appear
when the engine is turned on.
3-66
A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under
Windshield Washer Fluid
on page 5-34
.
B. Battery. See
Battery on page 5-38
.
C. Remote Positive (+) Terminal. See
Jump Starting on
page 5-39
.
D. Passenger Compartment Air Filter. See
Passenger
Compartment Air Filter on page 3-28
.
E. Underhood Fuse Block. See
Underhood Fuse Block
on page 5-90
.
F. Engine Coolant Surge Tank. See
Cooling System on
page 5-26
.
G. Radiator Pressure Cap. See
Radiator Pressure Cap
on page 5-24
.
H. Power Steering Fluid Reservoir (Below Generator).
See
Power Steering Fluid on page 5-33
.
I. Electric Engine Cooling Fans. See
Cooling System
on page 5-26
.
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 5-21
.
M. Engine Coolant Bleed Valve. See “How to Add
Coolant to the Radiator” under
Cooling System on
page 5-26
.
N. Brake Master Cylinder Reservoir. See “Brake Fluid”
under
Brakes on page 5-35
.
O. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-19
.
5-13
A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under
Windshield Washer Fluid
on page 5-34
.
B. Battery. See
Battery on page 5-38
.
C. Remote Positive (+) Terminal. See
Jump Starting on
page 5-39
.
D. Underhood Fuse Block. See
Underhood Fuse Block
on page 5-90
.
E. Passenger Compartment Air Filter. See
Passenger
Compartment Air Filter on page 3-28
.
F. Engine Coolant Surge Tank. See
Cooling System on
page 5-26
.
G. Power Steering Fluid Reservoir. See
Power Steering
Fluid on page 5-33
.
H. Radiator Pressure Cap. See
Radiator Pressure Cap
on page 5-24
.
I. Engine Oil Fill Cap. See “When to Add Engine Oil”
under
Engine Oil on page 5-15
.
J. Electric Engine Cooling Fans. See
Cooling System
on page 5-26
.
K. Engine Oil Dipstick. See “Checking 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 5-21
.
M. Brake Master Cylinder Reservoir. See “Brake Fluid”
under
Brakes on page 5-35
.
N. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-19
.
Engine Oil
Checking Engine Oil
It is a good idea to check your 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
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.
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.
{
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.
3.8L V6 engine shown,
3.6L V6 engine similar
5-40
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 an accident, 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 for service if the headlamps need to be re-aimed.
It is possible however, to re-aim the headlamps as
described in the following procedure.
The vehicle should be properly prepared as follows:
The vehicle should be placed so the headlamps
are 25 ft. (7.6 m) from a light colored wall or
other flat surface.
The vehicle must have all four tires on a perfectly
level surface which is level all the way to the wall
or other flat surface.
The vehicle should be placed so it is perpendicular
to the wall or other flat surface.
The vehicle should not have any snow, ice or
mud on it.
The vehicle should be fully assembled and all other
work stopped while headlamp aiming is being done.
The vehicle should be normally loaded with a
full tank of fuel and one person or 160 lbs (75 kg) on
the driver’s seat.
Tires should be properly inflated.
Headlamp aiming is done with the vehicle’s low-beam
headlamps. The high-beam headlamps will be correctly
aimed if the low-beam headlamps are aimed properly.
The vertical headlamp aiming screws are located under
the hood near the headlamps.
5-43
Electrical System
Add-On Electrical Equipment
Notice:
Don’t add anything electrical to your
vehicle unless you check with your dealer first.
Some electrical equipment can damage your vehicle
and the damage wouldn’t be covered by your
warranty. Some add-on electrical equipment can
keep other components from working as they
should.
Your vehicle has an airbag system. Before attempting to
add anything electrical to your vehicle, see
Servicing
Your Airbag-Equipped Vehicle on page 1-64
.
Headlamp Wiring
The headlamp wiring is protected by a circuit breaker in
the underhood fuse block. An electrical overload will
cause the headlamps to go on and off, or in some cases
to remain off. If this happens, have the headlamp
system 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.
5-87
Power Windows and Other
Power Options
Circuit breakers in the instrument panel 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.
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.
Instrument Panel Fuse Block
The instrument panel fuse
block is located on the
passenger’s side of
the instrument panel. Pull
off the cover labeled
FUSES to expose the
fuse block.
5-88
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
Fuses
Usage
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
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
5-89
Underhood Fuse Block
Some fuses and relays are located in the underhood
fuse block on the passenger’s side of the vehicle in the
engine compartment. See
Engine Compartment
Overview on page 5-12
for more information on location.
Mini-Fuses
Usage
1
Left High Beam
2
Right High Beam
Mini-Fuses
Usage
3
Left Low Beam
4
Right Low Beam
5
Windshield Wiper
6
Washer/Regulated Voltage Control
7
Fog Lamps
8
Transaxle 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
Powetrain Control Module,
Electronic Throttle Control
17
Electronic Throttle Control
18
Display
19
Anti-lock Brake Solenoid
20
Fuel Injector
21
Transmission Solenoid
22
Fuel Pump
23
Anti-lock Brake System
24
Ignition
5-90
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
Anti-lock Brake System Motor
32
Fan 2
33
Starter
Micro-Relays
Usage
34
Headlamp High Beam
35
HDM Module
36
Fog Lamp
37
Ignition 1
38
Air Conditioning Compressor
39
Horn
40
Powertrain
41
Fuel Pump
Mini-Relays
Usage
42
Fan 1
43
Fan 3
Mini-Relays
Usage
44
Windshield Wiper High
45
Windshield Wiper
46
Fan 2
48
Crank
Spare Fuses
Usage
49
Spare
50
Spare
51
Spare
52
Spare
53
Spare
54
Spare
Fuse Puller
Usage
55
Fuse Puller
Diodes
Usage
§
Air Conditioner Compressor
Clutch Diode
5-91