2005 BUICK LACROSSE bulb

Service............................................................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of Your
Vehicle......................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-15
Engine Oil Life System..................................5-18
Engine Air Cleaner/Filter................................5-19
Automatic Transmission Fluid.........................5-21
Engine Coolant.............................................5-21
Radiator Pressure Cap..................................5-24
Engine Overheating.......................................5-24
Overheated Engine Protection
Operating Mode........................................5-26
Cooling System............................................5-26Power Steering Fluid.....................................5-33
Windshield Washer Fluid................................5-34
Brakes........................................................5-35
Battery........................................................5-38
Jump Starting...............................................5-39
Headlamp Aiming...........................................5-43
Bulb Replacement..........................................5-45
Halogen Bulbs..............................................5-45
Headlamps and Sidemarker Lamps.................5-46
Front Turn Signal and Parking Lamps..............5-47
Fog Lamps..................................................5-48
Taillamps, Turn Signal, Sidemarker,
Stoplamps and Back-up Lamps...................5-48
Windshield Wiper Blade Replacement..............5-51
Tires..............................................................5-52
Tire Sidewall Labelling...................................5-53
Tire Terminology and Denitions.....................5-55
Ination - Tire Pressure.................................5-58
Tire Inspection and Rotation...........................5-60
When It Is Time for New Tires.......................5-61
Buying New Tires.........................................5-62
Uniform Tire Quality Grading..........................5-63
Wheel Alignment and Tire Balance..................5-64
Wheel Replacement......................................5-65
Section 5 Service and Appearance Care
5-1

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. Turn the vertical aiming screw until the headlamp
beam is aimed to the horizontal tape line. The top
edge of the cut-off should be positioned at the
bottom edge of the horizontal tape line.
6. Repeat Steps 4 and 5 for the opposite headlamp.Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 5-50.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
5-45

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 5-11
for more information.
2. Remove the fastener from the front fascia. The
fastener is located inboard of the headlamp
assembly, near the high-beam headlamp.3. Pull up on the plastic retaining clip (C) while
pushing rearward on the headlamp. Align the square
cut-out on the retaining clip with the notch on the
headlamp.
4. Remove the screw (A) from the metal headlamp
retainer to pull up and release the headlamp
assembly.
5. Remove the push pin (B) retaining the front fascia.
5-46

6. Pull back on the front fascia and then pull the
headlamp assembly out from the vehicle. Moving
the headlamp up and down slightly may help with
its removal.
You may have someone assist you with this step.
7. Remove the access cover from behind the bulb
being replaced.
8. Turn the bulb socket one-quarter of a turn to
remove it from the headlamp assembly.
9. Holding the base of the socket, pull the old bulb
from the socket.
10. Replace with a new bulb.
11. Reverse all the steps to reassemble the headlamp
assembly.
When replacing the plastic retaining clip, push down
on it while pushing rearward on the headlamp,
making sure the headlamp assembly is secure.
High-Beam Headlamp Bulbs
To replace the high-beam headlamp bulb, do the
following:
1. Open the hood. SeeHood Release on page 5-11
for 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.
5-47

Fog Lamps
Your vehicle may have fog lamps. To replace a fog
lamp bulb, do the following:
1. Locate the access door in the splash shield. It is
located behind the front fascia. To do this, reach
up under and behind the front fascia.
2. Open the access door.
3. Locate the fog lamp bulb socket.
4. Turn the bulb socket counterclockwise one-quarter
of a turn while pressing the socket in rmly.
5. Pull the socket rearward until the bulb socket clears
the fog lamp housing.
6. Disconnect the wire
connector from the
bulb by lifting the lock
tab and pulling it
away from the
plastic base.7. Remove the bulb assembly and replace it with the
appropriate bulb.
8. Reverse the steps to reinstall the fog lamp
bulb socket.
Taillamps, Turn Signal, Sidemarker,
Stoplamps and Back-up Lamps
To replace a taillamp, turn signal, sidemarker, stoplamp
or back-up lamp bulb, do the following:
1. Open the trunk. SeeTrunk on page 2-13for more
information.
2. Remove the convenience net if the vehicle has one.
5-48

A. Taillamp
B. Back-up
C. TaillampD. Stoplamp/Taillamp/Turn
Signal
E. Sidemarker
7. Turn the bulb socket counterclockwise to remove it.
8. Replace with a new bulb.
9. Turn the bulb socket clockwise to reinstall.
10. Reverse these steps to reinstall the
taillamp assembly.
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 and
Taillamp194
Stoplamps and Taillamps 3057
For replacement bulbs not listed here, contact
your dealer.
5-50

Audio System(s) (cont.)
Radio with CD............................3-79, 3-84, 3-92
Radio with Six-Disc CD..............................3-105
Setting the Time..........................................3-79
Theft-Deterrent Feature...............................3-117
Understanding Radio Reception...................3-119
Automatic Transaxle
Operation...................................................2-24
Automatic Transmission
Fluid..........................................................5-21
B
Backglass Antenna........................................3-120
Battery..........................................................5-38
Exterior Lighting Battery Saver......................3-15
Run-Down Protection...................................3-18
Before Leaving on a Long Trip.........................4-21
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-27
System Warning Light..................................3-36
Brakes..........................................................5-35
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-21Bulb Replacement...........................................5-45
Fog Lamps.................................................5-48
Front Turn Signal and Parking Lamps.............5-47
Halogen Bulbs............................................5-45
Headlamp Aiming........................................5-43
Replacement Bulbs......................................5-50
Taillamps, Turn Signal, Sidemarker,
Stoplamps, and Back-Up Lamps.................5-48
Buying New Tires...........................................5-62
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications............................5-92
Carbon Monoxide...................2-13, 2-30, 4-24, 4-35
Care of
Safety Belts................................................5-81
Your CD Player.........................................3-119
Your CDs .................................................3-119
Center Console Storage Area...........................2-41
Center Front Passenger Position, Safety Belts....1-24
Center Seat..................................................... 1-7
Chains, Tire...................................................5-66
Charging System Light....................................3-35
2

Fuses
Fuses and Circuit Breakers...........................5-88
Instrument Panel Fuse Block.........................5-88
Underhood Fuse Block.................................5-90
Windshield Wiper.........................................5-87
G
Gage
Engine Coolant Temperature.........................3-38
Fuel..........................................................3-46
Speedometer..............................................3-32
Tachometer.................................................3-32
Garage Door Opener.......................................2-36
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Glove Box.....................................................2-40
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-7
Headlamp
Aiming.......................................................5-43Headlamp Wiring............................................5-87
Headlamps
Bulb Replacement.......................................5-45
Daytime Running Lamps/Automatic
Headlamp System....................................3-14
Flash-to-Pass............................................... 3-8
Front Turn Signal and Parking Lamps.............5-47
Halogen Bulbs............................................5-45
Headlamps and Sidemarker Lamps................5-46
High/Low Beam Changer................................ 3-8
Suggested Light..........................................3-44
Headlamps and Sidemarker Lamps...................5-46
Heated Seats................................................... 1-5
Heater...........................................................3-21
Heater...........................................................3-24
Highbeam On Light.........................................3-44
Highway Hypnosis...........................................4-21
Hill and Mountain Roads..................................4-22
HomeLink
®Transmitter....................................2-36
HomeLink®Transmitter, Programming................2-36
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-15
6