fuses BUICK LACROSSE 2007 Owner's Manual

PASS-Key®III 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.
This means nothing special needs to be done
to arm or disarm the system. It works when the key
is inserted or removed from the ignition.
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, 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. SeeFuses and Circuit Breakers on
page 450. 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 who can service the PASS-Key
®III
to have a new key made. In an emergency,
contact Roadside Assistance. SeeRoadside
Assistance Program on page 484for more
information.
107

Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
GTurn and Lane Change Signals. See
Turn and Lane-Change Signals on page 152.
2Headlamp High/Low-Beam Changer.
SeeHeadlamp High/Low-Beam Changer
on page 153.
Flash-to-Pass. SeeFlash-to-Pass on page 153.
NWindshield Wipers. SeeWindshield Wipers
on page 153.
LQWindshield Washer. SeeWindshield
Washer on page 154.
For information on the headlamps, seeExterior
Lamps on page 158.
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 ash in the
direction of the turn or
lane change.
To signal a lane change, raise or lower the lever
until the arrow starts to ash. Hold it there until the
lane change is completed. The lever will return
to its original position when released.
Arrows that ash 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. SeeFront Turn Signal and
Parking Lamps on page 397andTaillamps, Turn
Signal, Sidemarker, Stoplamps and Back-up
Lamps on page 398for turn signal bulb
replacement procedures. Also seeFuses and
Circuit Breakers on page 450for location of fuses.
A chime will sound if the turn signal is left on
for more than 3/4 mile (1.2 km).
152

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 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
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 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.
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.
167

SERVICE BRAKE SYSTEM
This message displays when a problem with the
brake system has been detected. Have your
vehicle serviced by your dealer as soon as
possible.
The brake system warning light also appears on
the instrument panel cluster when this message
appears on the DIC. SeeBrake System Warning
Light on page 186.
This message only displays 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 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.
SeeFuses and Circuit Breakers on page 450and
Instrument Panel Fuse Block on page 450for
more information. If changing the fuse does not
correct the problem, see your dealer.
This message only displays 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 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.
223

Vehicle Identication.................................. 448
Vehicle Identication Number (VIN)........... 448
Service Parts Identication Label............... 448
Electrical System........................................ 449
Add-On Electrical Equipment..................... 449
Headlamp Wiring....................................... 449
Windshield Wiper Fuses............................ 449Power Windows and Other Power
Options.................................................. 450
Fuses and Circuit Breakers....................... 450
Instrument Panel Fuse Block..................... 450
Underhood Fuse Block.............................. 452
Capacities and Specications.................... 454
Section 5 Service and Appearance Care
339

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to your
vehicle unless you check with your dealer
rst. Some electrical equipment can damage
your vehicle and the damage would not
be covered by your warranty. Some add-on
electrical equipment can keep other
components from working as they should.
Add-on equipment can drain your vehicle’s battery,
even if your vehicle is not operating.
Your vehicle has an airbag system. Before
attempting to add anything electrical to your
vehicle, seeServicing Your Airbag-Equipped
Vehicle on page 80.
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 xed.
449

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 xed.
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.
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.
450

Fuses Usage
DR/LCK
TRUNKDoor Locks, Trunk
RFA/MOD Remote Keyless Entry
PRK/SWTCH Ignition Key Lock
CLSTR Cluster
STR/WHL/
ILLUMSteering Wheel Controls
Illumination
ONSTAR/ALDL OnStar
®, Data Link
Fuses Usage
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/BKUPCenter-High-Mounted
Stoplamp/Back-up Lamps
PWR/MIR Power Mirrors
CRUISE Cruise Control
RDO/AMP Radio, Amplier
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
451

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 350for
more information on location.
Mini-Fuses Usage
1 Driver’s Side High-Beam
2 Passenger’s Side High-Beam
3 Driver’s Side Low-Beam
Mini-Fuses Usage
4 Passenger’s Side Low-Beam
5 Windshield Wiper
6 Washer/Regulated Voltage Control
7 Fog Lamps
8 Transaxle 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 Anti-lock Brake Solenoid
20 Fuel Injector
21 Transaxle Solenoid
22 Fuel Pump
23 Anti-lock Brake System
24 Ignition
452

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 Headlamp Driver 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 Blank
53 Blank
54 Blank
Fuse Puller Usage
55 Fuse Puller
Diodes Usage
§Air Conditioner Compressor Clutch
Diode
453