bulb BUICK LESABRE 2003 Owner's Manual

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Safety Belts
.............................................. 1-6
Child Restraints
.......................................1-27
Air Bag Systems
......................................1-46
Restraint System Check
............................1-54
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-9
Windows
.................................................2-16
Theft-Deterrent Systems
............................2-18
Starting and Operating Your Vehicle
...........2-21
Mirrors
....................................................2-33
OnStar
žSystem
......................................2-37
HomeLinkžTransmitter
.............................2-38
Storage Areas
.........................................2-42
Sunroof
..................................................2-43
Vehicle Personalization
.............................2-44
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-24
Warning Lights, Gages and Indicators
.........3-32
Driver Information Center (DIC)
..................3-45
Audio System(s)
.......................................3-55Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-31
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
...............5-10
Headlamp Aiming
.....................................5-47
Bulb Replacement
....................................5-52
Windshield Wiper Blade Replacement
.........5-57
Tires
......................................................5-58
Appearance Care
.....................................5-77
Vehicle Identi®cation
.................................5-85
Electrical System
......................................5-85
Capacities and Speci®cations
.....................5-93
Normal Maintenance Replacement Parts
......5-94
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance Information
.................. 7-2
Reporting Safety Defects
............................ 7-9
Index.................................................................1
2003 Buick LeSabre Owner ManualM

Turn and Lane-Change Signals
To signal a turn, move the lever on the left side of the
steering wheel all the way up or down. The lever returns
automatically when the turn is complete.
An arrow on the instrument
panel cluster will ¯ash in
the direction of the
turn or lane change.
If your vehicle is equipped with the Head-Up Display
(HUD), an arrow will also appear in the display area to
indicate the direction of the turn or lane change.
See
Head-Up Display (HUD) on page 3-20for more
information.
You may also have an arrow in the outside mirror that
¯ashes when the turn signal is used. See
Outside Power
Mirrors on page 2-35for more information.
Raise or lower the lever until the arrow starts to ¯ash to
signal a lane change. Hold it there until the lane
change is complete.
If the arrows ¯ash very fast as you signal a turn or a
lane change, a signal bulb may be burned out and other
drivers won't see your turn signal.If a bulb is burned out, replace it to help avoid an
accident. If the arrows don't go on at all when you signal
a turn, check the fuse. See
Fuses and Circuit Breakers
on page 5-86.
Turn Signal On Chime
If your turn signal is left on for more than 0.8 miles
(1.3 km), a chime will sound at each ¯ash of the turn
signal. To turn off the chime, move the turn signal lever
to the off position.
Headlamp High/Low-Beam Changer
To change the headlamps from low beam to high beam
or high beam to low beam, pull the turn signal lever
toward you and release it.
When the high beams are
on, this light located on the
instrument panel cluster
will also be on.
If your vehicle is equipped with the Head-Up Display
(HUD), this symbol will also appear in the display area to
indicate the high beams are on. See
Head-Up Display
(HUD) on page 3-20for more information.
3-8

Following Distance
Stay at least twice as far behind the vehicle ahead as
you would when driving your vehicle without a trailer.
This can help you avoid situations that require
heavy braking and sudden turns.
Passing
You'll need more passing distance up ahead when
you're towing a trailer. And, because you're a good deal
longer, you'll need to go much farther beyond the
passed vehicle before you can return to your lane.
Backing Up
Hold the bottom of the steering wheel with one hand.
Then, to move the trailer to the left, just move that hand
to the left. To move the trailer to the right, move your
hand to the right. Always back up slowly and, if possible,
have someone guide you.
Making Turns
Notice:Making very sharp turns while trailering
could cause the trailer to come in contact with the
vehicle. Your vehicle could be damaged. Avoid
making very sharp turns while trailering.
When you're turning with a trailer, make wider turns
than normal. Do this so your trailer won't strike
soft shoulders, curbs, road signs, trees or other objects.
Avoid jerky or sudden maneuvers. Signal well in
advance.
Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need a
different turn signal ¯asher and/or extra wiring. Check
with your dealer. The arrows on your instrument
panel will ¯ash whenever you signal a turn or lane
change. Properly hooked up, the trailer lamps will also
¯ash, telling other drivers you're about to turn,
change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will ¯ash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It's
important to check occasionally to be sure the trailer
bulbs are still working.
4-40

Your vehicle has bulb warning lights. When you plug a
trailer lighting system into your vehicle's lighting
system, its bulb warning lights may not let you know if
one of your lamps goes out. So, when you have a trailer
lighting system plugged in, be sure to check your
vehicle and trailer lamps from time to time to be sure
they're all working. Once you disconnect the trailer
lamps, the bulb warning lights again can tell you if one
of your vehicle lamps is out.
Driving On Grades
Reduce speed and shift to a lower gearbeforeyou start
down a long or steep downgrade. If you don't shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
On a long uphill grade, shift down to THIRD (3) and
reduce your speed to around 45 mph (70 km/h) to
reduce the possibility of engine and transaxle
overheating.
Parking on Hills
{CAUTION:
You really should not park your vehicle, with a
trailer attached, on a hill. If something goes
wrong, your rig could start to move. People
can be injured, and both your vehicle and the
trailer can be damaged.
But if you ever have to park your rig on a hill, here's
how to do it:
1. Apply your regular brakes, but don't shift into
PARK (P) yet.
2. Have someone place chocks under the trailer
wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your
parking brake, and then shift to PARK (P).
5. Release the regular brakes.
4-41

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of
Your Vehicle..............................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under
the Hood....................................................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-18
Automatic Transaxle Fluid..............................5-21
Engine Coolant.............................................5-23
Radiator Pressure Cap..................................5-26
Engine Overheating.......................................5-26
Cooling System............................................5-28
Power Steering Fluid.....................................5-35Windshield Washer Fluid................................5-36
Brakes........................................................5-37
Battery........................................................5-40
Jump Starting...............................................5-42
Headlamp Aiming...........................................5-47
Headlamp Horizontal Aiming...........................5-49
Headlamp Vertical Aiming..............................5-50
Bulb Replacement..........................................5-52
Halogen Bulbs..............................................5-52
Headlamps..................................................5-52
Front Turn Signal Lamps...............................5-53
Taillamps, Turn Signal, and Stoplamps............5-53
Taillamps and Back-Up Lamps.......................5-55
Replacement Bulbs.......................................5-56
Windshield Wiper Blade Replacement..............5-57
Tires..............................................................5-58
In¯ation -- Tire Pressure................................5-58
Check Tire Pressure System..........................5-59
Tire Inspection and Rotation...........................5-60
When It Is Time for New Tires.......................5-62
Buying New Tires.........................................5-62
Uniform Tire Quality Grading..........................5-63
Wheel Alignment and Tire Balance..................5-64
Section 5 Service and Appearance Care
5-1

Bulb Replacement
For the type of bulb to use, seeReplacement Bulbs on
page 5-56.
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.
Headlamps
1. Remove the two bolts retaining the headlamp
assembly.
2. Slide the headlamp outward until the pins are loose.
3. Remove the headlamp assembly to access the
bulbs.
5-52

4. Turn the bulb retainer counterclockwise to remove it
from the bulb assembly.
5. Pull the old bulb straight out from the retainer. Push
the new bulb straight into the retainer.
6. Reverse Steps 1 through 4 to reinstall the headlamp
assembly.
Front Turn Signal Lamps
Once the headlamp assembly has been removed from
the vehicle, the front turn signal bulbs can be
accessed.
1. Reach down into the space provided by the
removal of the headlamp assembly and, while
pushing in the tab on the bulb assembly, turn the
assembly counterclockwise and remove it.
2. Remove the old bulb by pulling it straight out of the
retainer.
3. Install the new bulb and turn the bulb assembly
back into place.
Taillamps, Turn Signal, and
Stoplamps
1. Open the trunk. Turn the screws located just inside
of the trunk counterclockwise and remove them.
2. Remove the plastic trim piece from the trunk.
3. Pull the carpet away from the rear area to access
the turn signal bulb assembly.
4. Loosen and remove the bolts that hold the assembly
in place.
5-53

5. Pull out the bulb assembly.6. Turn the bulb socket
one-quarter turn
counterclockwise, while
pressing it ®rmly.
7. Pull the bulb socket straight out of the assembly.
8. Remove the old bulb by pulling it straight out.
9. Replace with a new bulb by pushing the bulb
straight into the socket until the bulb clicks into
place.
10. Turn the bulb socket one-quarter turn into the
assembly to lock it back into place.
11. Reverse Steps 1 through 5 to reinstall the bulb
assembly.
5-54

Taillamps and Back-Up Lamps
1. Open the trunk. Loosen and remove the seven
fasteners that hold the taillamp assembly in
place. The assembly for both sides is one piece.
The entire piece must be removed to replace
any bulbs.2. Pull out the assembly.
5-55

3. Push in the tab and turn the bulb socket
counterclockwise to remove it.
4. Remove the bulb by pulling it straight out.
5. Replace the bulb and reverse the steps to install
the assembly.
Replacement Bulbs
Exterior Lamp Bulb Number
Front
Low Beam Headlamps 9006
High Beam Headlamps 9005
Front Turn Signals 3157
Rear
Trunk Mounted Back-Up Lamps 3057
Trunk Mounted Taillamps 194
Tail/Stop/Turn Signal Lamps 3357
For any bulb not listed here contact your dealer.
5-56