low beam BUICK LACROSSE 2007 User Guide

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.
The adjustment screw can be turned with a
6 mm male hex.To adjust the vertical aim on the headlamps,
do the following:
1. Open the hood. SeeHood Release on
page 349for more information.
2. Locate the aim dot on the lens of the
low-beam headlamp.
3. Measure the distance from the ground to
the aim dot on the low-beam headlamp.
Record the distance.
392

4. 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.
5. Draw or tape a horizontal line (B) on the wall
the width of the vehicle at the height of the
mark in Step 4.6. 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.
7. 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.
8. 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.
393

Headlamps and Sidemarker Lamps
A. Sidemarker Lamp
B. Low-Beam Headlamp
C. High-Beam Headlamp
Low-Beam Headlamp and
Sidemarker Bulbs
To replace a low-beam headlamp or sidemarker
bulb, do the following:
1. Open the hood. SeeHood Release on
page 349for more information.
2. Remove the fastener from the front fascia.
The fastener is located inboard of the
headlamp assembly, near the high-beam
headlamp.
395

High-Beam Headlamp Bulbs
To replace the high-beam headlamp bulb, do the
following:
1. Open the hood. SeeHood Release on
page 349for more information.
2. Locate the high-beam headlamp bulb socket.
3. Remove the access cover from behind the
bulb being replaced.
4. Turn the bulb socket counterclockwise and
pull it from the headlamp assembly.
5. Holding the base of the socket, pull the old
bulb from the socket.
6. Replace with a new bulb.
7. Reverse Steps 2 through 4 to reinstall.
Front Turn Signal and Parking
Lamps
To replace a front turn signal/parking lamp bulb in
the front fascia, do the following:
1. Locate the front turn signal/parking bulb
socket by reaching behind the front bumper.
2. Turn the bulb socket counterclockwise and
pull it out of the assembly.
3. Holding the base of the socket, pull the old
bulb from the socket.
4. Push the new bulb into the socket.
5. Reverse Steps 1 through 3 to reinstall.
397

License Plate Lamp
To replace one of these bulbs, do the following:
1. Remove the two screws holding each of
the license plate lamps to the fascia.
2. Turn and pull the license plate lamp forward
through the fascia opening.
3. Turn the bulb socket counterclockwise and
pull the bulb straight out of the socket.
4. Install the new bulb.
5. Reverse Steps 1 through 3 to reinstall the
license plate lamp.
Replacement Bulbs
Exterior Lamps Bulb Number
Back-Up Lamps 921
Fog Lamp H11
Front Turn Signal and
Parking Lamps3157NAK
Headlamps
High-Beam H9
Low-Beam H11
Front/Rear Sidemarker,
License Plate Lamp,
and Taillamp194
Stoplamps and Taillamps 3057
For replacement bulbs not listed here, contact
your dealer.
400

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

G
Gage
Engine Coolant Temperature.................... 189
Fuel......................................................... 198
Speedometer........................................... 181
Tachometer.............................................. 181
Garage Door Opener................................... 130
Gasoline
Octane..................................................... 343
Specications........................................... 344
Glove Box................................................... 141
GM Mobility Reimbursement Program.......... 483
H
Hazard Warning Flashers............................ 150
Head Restraints............................................ 13
Headlamp
Aiming..................................................... 391
Headlamp Wiring......................................... 449
Headlamps
Bulb Replacement.................................... 394
Daytime Running Lamps/Automatic
Headlamp System................................ 159Headlamps (cont.)
Flash-to-Pass........................................... 153
Front Turn Signal and Parking Lamps...... 397
Halogen Bulbs......................................... 394
Headlamps and Sidemarker Lamps.......... 395
High/Low Beam Changer......................... 153
Suggested Light....................................... 196
Headlamps and Sidemarker Lamps............. 395
Heated Seats................................................ 10
Heater......................................................... 168
Heater......................................................... 172
Highbeam On Light..................................... 196
Highway Hypnosis....................................... 311
Hill and Mountain Roads............................. 312
Hood
Checking Things Under............................ 348
Release................................................... 349
Horn............................................................ 150
How to Use This Manual ................................ 3
How to Wear Safety Belts Properly............... 21
503

Light (cont.)
Door Ajar................................................. 197
Engine Coolant Temperature Warning....... 188
Headlamps Suggested............................. 196
Highbeam On.......................................... 196
Low Coolant Warning............................... 189
Low Fuel Warning.................................... 198
Low Washer Fluid Warning...................... 197
Malfunction Indicator................................ 190
Oil Pressure............................................. 194
Passenger Airbag Status Indicator............ 183
Passenger Safety Belt Reminder.............. 182
Reduced Engine Power............................ 196
Safety Belt Reminder............................... 181
Security................................................... 195
Service Vehicle Soon............................... 197
TCS Warning Light.................................. 187
Tire Pressure........................................... 190
Traction Control System (TCS) Warning ... 187
Trunk Ajar................................................ 197
Lighting
Delayed Entry.......................................... 162
Delayed Exit............................................ 162
Entry........................................................ 161
Perimeter................................................. 163
Theater Dimming..................................... 162
Loading Your Vehicle................................... 319Lockout Protection......................................... 99
Locks
Automatic Door Lock................................. 98
Delayed Locking........................................ 97
Door.......................................................... 96
Lockout Protection..................................... 99
Power Door............................................... 97
Programmable Automatic Door Unlock....... 98
Rear Door Security Locks.......................... 98
Loss of Control........................................... 302
Low Coolant Warning Light.......................... 189
Low Fuel Warning Light............................... 198
Low Washer Fluid Warning Light................. 197
Lumbar
Power Controls.......................................... 10
M
Maintenance Schedule
Additional Required Services.................... 464
At Each Fuel Fill...................................... 467
At Least Once a Month............................ 467
At Least Once a Year .............................. 468
Introduction.............................................. 458
Maintenance Footnotes............................ 465
Maintenance Record................................ 473
Maintenance Requirements...................... 458
505