2008 BUICK LACROSSE fuses

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 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 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 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/
DISPLAYAirbag, Display
COMPASS Compass
ABS Antilock Brake System
Fuses Usage
ETC/ECMElectronic Throttle Control, Engine
Control Module
A/C CMPRSR Air Conditioning Compressor
INJ 1 Injectors 1
ECM/TCMEngine 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/RVCWindshield Washer, Regulated
Voltage Control
LT LO BEAM Driver Side Low-Beam Headlamp
RT LO BEAMPassenger 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 BEAMPassenger 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 1Relays 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

D
Daytime Running Lamps/Automatic
Headlamp System.......................................3-14
Defensive Driving............................................. 4-2
Delayed Entry Lighting.....................................3-17
Delayed Exit Lighting.......................................3-17
Delayed Locking.............................................2-12
DIC Compass.................................................3-56
Diesel
Running Out of Fuel....................................2-37
Disc, MP3......................................................3-97
Doing Your Own Service Work........................... 5-4
Door
Ajar Light...................................................3-47
Automatic Door Lock....................................2-12
Delayed Locking..........................................2-12
Locks........................................................2-11
Power Door Locks.......................................2-11
Programmable Automatic Door Unlock............2-12
Rear Door Security Locks.............................2-12
Driver Information Center (DIC).........................3-49
DIC Operation and Displays..........................3-50
DIC Vehicle Personalization..........................3-76
DIC Warnings and Messages........................3-58Driving
At Night.....................................................4-13
Before a Long Trip......................................4-15
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-15
Hill and Mountain Roads..............................4-16
In Rain and on Wet Roads...........................4-14
Rocking Your Vehicle to Get it Out.................4-21
Winter........................................................4-17
Dual Automatic Climate Control System.............3-24
E
EDR .............................................................7-17
Electrical System
Add-On Equipment.....................................5-108
Fuses and Circuit Breakers.........................5-109
Headlamp Wiring.......................................5-109
Instrument Panel Fuse Block.......................5-110
Power Windows and Other Power Options....5-109
Underhood Fuse Block...............................5-112
Windshield Wiper Fuses.............................5-109
4

Fuses
Fuses and Circuit Breakers.........................5-109
Instrument Panel Fuse Block.......................5-110
Underhood Fuse Block...............................5-112
Windshield Wiper.......................................5-109
G
Gage
Engine Coolant Temperature.........................3-40
Fuel..........................................................3-48
Speedometer..............................................3-32
Tachometer.................................................3-32
Garage Door Opener.......................................2-47
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Glove Box.....................................................2-52
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp
Aiming.......................................................5-56
Headlamp Wiring...........................................5-109Headlamps
Bulb Replacement.......................................5-58
Daytime Running Lamps/Automatic
Headlamp System....................................3-14
Exterior Lamps............................................3-13
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-58
High/Low Beam Changer................................ 3-8
Suggested Light..........................................3-47
Heated Seats................................................... 1-3
Heater...........................................................3-20
Heater...........................................................3-24
Highbeam On Light.........................................3-46
Highway Hypnosis...........................................4-15
Hill and Mountain Roads..................................4-16
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Wear Safety Belts Properly...................1-14I
Ignition Positions.............................................2-24
Infants and Young Children, Restraints...............1-33
Ination - Tire Pressure...................................5-70
Instrument Panel
Overview..................................................... 3-4
6

W
Warning Lights, Gages and Indicators................3-30
Warnings
DIC Warnings and Messages........................3-58
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washer Fluid, Low Warning Light......................3-47
Wheels
Alignment and Tire Balance..........................5-82
Different Size..............................................5-80
Replacement...............................................5-82
Where to Put the Restraint...............................1-39
Windows.......................................................2-17
Power........................................................2-18Windshield
Replacement...............................................5-62
Washer........................................................ 3-9
Washer Fluid..............................................5-44
Wiper Blade Replacement.............................5-62
Wiper Blades, Cleaning..............................5-104
Wiper Fuses.............................................5-109
Wipers......................................................... 3-9
Winter Driving................................................4-17
X
XM Radio Messages.....................................3-100
XM™ Satellite Radio Antenna System..............3-105
Y
Your Vehicle and the Environment....................... 6-2
14