2009 BUICK LACROSSE low beam

Reduced Engine Power Light
If the reduced engine
power light is on, a chime
will sound and a noticeable
reduction in the vehicle’s
performance may occur.
If the reduced engine power light is on, but there is no
reduction in performance, proceed to your destination.
The performance may be reduced the next time the
vehicle is driven. The vehicle may be driven at a reduced
speed while the reduced engine power light is on, but
acceleration and speed may be reduced.
Anytime the reduced engine power light stays on,
the vehicle should be taken to an authorized GM
dealer/retailer as soon as possible for service.
Highbeam On Light
This light comes on when
the high-beam headlamps
are in use.
SeeHeadlamp High/Low-Beam Changer on page 3-8
for more information.
Headlamps Suggested Light
This light will come
on when the use of
headlamps is suggested.
3-44

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

The vehicle should be:
Placed so the headlamps are 25 ft. (7.6 m) from a
light colored wall.
On a perfectly level surface which is level all the
way to the wall.
Be placed so it is at a right angle to the wall.
Clear of any snow, ice or mud on it.
Be fully assembled, with the tires properly inated
and all other work stopped while headlamp aiming
is being done.
Be normally loaded with a full tank of fuel, with the
spare tire in its proper location, and one person or
160 lbs (75 kg) on the driver seat.
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.
Locate the vertical headlamp aiming screws under
the hood near the headlamps.The adjustment screw can be turned with a 6 mm
male hex.
5-47

To adjust the vertical aim on the headlamps:
1. Open the hood. SeeHood Release on page 5-11.
2. Measure the distance from the ground to the
aim dot on the low-beam headlamp. Record
the distance.
3. At the wall measure from the ground upward (A) to
the recorded distance from Step 3 and mark it.Notice:Do not cover a headlamp to improve beam
cut-off when aiming. Covering a headlamp may
cause excessive heat build-up which may cause
damage to the headlamp.
4. Draw or tape a horizontal line (B) on the wall the
width of the vehicle at the height of the mark in
Step 4.
5. Turn on the low-beam headlamps and place a
piece of cardboard or equivalent in front of the
headlamp not being adjusted. Do not place directly
on the headlamp. This allows only the beam of
light from the headlamp being adjusted to be seen
on the at surface.
6. Locate the vertical headlamp aiming screws, which
are under the hood near each headlamp assembly.
The adjustment screw can be turned with a 6 mm
male hex.
7. Turn the vertical aiming screw until the headlamp
beam is aimed to the horizontal tape line. Turn it
clockwise or counterclockwise to raise or lower the
angle of the beam.
5-48

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

Fuses Usage
INJ 1 Injectors 1
INJ 2 Injectors 2
LT HI BEAM Driver Side High-Beam Headlamps
LT LO BEAM Driver Side Low-Beam Headlamp
RT HI BEAMPassenger Side High-Beam
Headlamp
RT LO BEAMPassenger Side Low-Beam
Headlamp
STRTR Starter
TRANS Transmission
WPR Windshield Wipers
WSW/RVC1Windshield Washers, Regulated
Voltage ControlRelays Usage
A/C CMPRSR Air Conditioning Compressor
FAN 1 Cooling Fan 1
FAN 2 Cooling Fan 2
FAN 3 Cooling Fan 3
FUEL/PUMP Fuel Pump
HDM Headlamp Driver Module
PWR/TRN Powertrain
STRTR Starter
5-105

Fuel (cont.)
Filling a Portable Fuel Container....................5-10
Filling the Tank............................................. 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-46
Gasoline Octane........................................... 5-6
Gasoline Specications.................................. 5-6
Low Warning Light.......................................3-47
Fuses
Fuses and Circuit Breakers...........................5-99
Instrument Panel Fuse Block.......................5-100
Underhood Fuse Block...............................5-101
Windshield Wiper.........................................5-99
G
Gage
Engine Coolant Temperature.........................3-38
Fuel..........................................................3-46
Speedometer..............................................3-32
Tachometer.................................................3-32
Garage Door Opener.......................................2-43
Gasoline
Octane........................................................ 5-6
Specications............................................... 5-6
Glove Box.....................................................2-47
GM Mobility Reimbursement Program.................. 7-7
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp
Aiming .......................................................5-46
Headlamp Wiring............................................5-99
Headlamps
Bulb Replacement.......................................5-49
Daytime Running Lamps/Automatic
Headlamp System....................................3-14
Exterior Lamps............................................3-13
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-49
High/Low Beam Changer................................ 3-8
Suggested Light..........................................3-44
Heated Seats................................................... 1-3
Heater...........................................................3-21
Engine Coolant...........................................2-24
Heater...........................................................3-25
Highbeam On Light.........................................3-44
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...................1-13
6

I
Ignition Positions.............................................2-21
Infants and Young Children, Restraints...............1-33
Ination - Tire Pressure...................................5-61
Instrument Panel
Brightness..................................................3-16
Cluster.......................................................3-31
Overview..................................................... 3-4
Interior Lamps................................................3-16
J
Jump Starting.................................................5-41
K
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Labeling, Tire Sidewall.....................................5-55
Lamp
Malfunction Indicator....................................3-40
Lamps
Courtesy....................................................3-16
Exterior Lighting Battery Saver......................3-15
Overhead Console Reading..........................3-18
Rear Assist Handle Reading..........................3-18Lap Belt........................................................1-28
Lap-Shoulder Belt...........................................1-22
LATCH System for Child Restraints...................1-41
License Plate Lamps.......................................5-52
Light
Airbag Readiness........................................3-33
Antilock Brake System (ABS) Warning............3-36
Brake System Warning.................................3-35
Change Engine Oil......................................3-43
Charging System.........................................3-35
Check Gas Cap..........................................3-47
Cruise Control.............................................3-43
Door Ajar...................................................3-45
Engine Coolant Temperature Warning.............3-38
Enhanced Traction System (ETS)
Warning Light..........................................3-37
Headlamps Suggested.................................3-44
Highbeam On.............................................3-44
Low Coolant Warning...................................3-39
Low Fuel Warning.......................................3-47
Low Washer Fluid Warning...........................3-45
Oil Pressure...............................................3-42
Passenger Airbag Status Indicator..................3-34
Reduced Engine Power................................3-44
Safety Belt Reminders..................................3-32
Security.....................................................3-43
Service Vehicle Soon...................................3-45
TCS Warning Light......................................3-37
7