2003 BUICK LESABRE turn signal

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

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

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

Fuses Usage
1 Fuel Pump
2 HVAC Blower
3 Memory
4 Assembly Line Diagnostic Link
5 Not Used
6 Compact Disc (CD)
7 Driver's Door Module
8 Air Bag System (SIR)
9 Not Used
10 Right Parking Lamp
11 Vent Solenoid
12 Ignition 1
13 Left Parking LampFuses Usage
14 Dimmer
15 Satellite Digital Radio
16 Left Front Heated Seat
17 Not Used
18 Rear Door Module
19 Stoplamp
20 Park/Reverse
21 Audio
22 Retained Accessory Power (RAP)
23 Not Used
24 Not Used
25 Passenger Door Module
26 Body
27 Interior Lamps
28 Not Used
29 Ignition Switch
30 Instrument Panel
31 Right Front Heated Seat
32 Not Used
33 HVAC
34 Ignition 3 Rear
35 Anti-Lock Brake System (ABS)
36 Turn Signal/Hazard
37 HVAC Battery
38 Dimmer
5-91

Automatic Transaxle Shift Lock Control
System Check.............................................6-19
Automatic Transaxle........................................5-21
Fluid..........................................................5-21
Operation...................................................2-25
B
Backing Up....................................................4-40
Battery Load Management...............................3-20
Battery Replacement......................................... 2-8
Battery Warning Light......................................3-37
Battery..........................................................5-40
Before Leaving on a Long Trip.........................4-22
Body Lubrication Service..................................6-18
Brake Fluid....................................................5-37
Brake Wear...................................................5-39
Brake............................................................2-27
Parking......................................................2-27
System Inspection.......................................6-22
System Warning Light..................................3-37
Brakes..........................................................5-37
Braking in Emergencies..................................... 4-8
Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-21
Bulb Replacement...........................................5-52
Front Turn Signal Lamps..............................5-53
Halogen Bulbs............................................5-52
Headlamp Aiming........................................5-47Bulb Replacement (cont.)
Headlamps.................................................5-52
Replacement Bulbs......................................5-56
Taillamps and Back-Up Lamps.......................5-55
Taillamps, Turn Signal, and Stoplamps............5-53
Buying New Tires...........................................5-62C
California Fuel.................................................. 5-5
Canada ± Customer Assistance.......................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Speci®cations............................5-93
Carbon Monoxide...................4-25, 4-35, 2-14, 2-31
Care of.........................................................5-80
Safety Belts................................................5-80
Your Cassette Tape Player............................3-79
Your CD Player...........................................3-80
Your CDs ...................................................3-80
Cassette Tape Messages.................................3-71
Cassette Tape Player Service...........................6-17
CD Adapter Kits.............................................3-71
CD Changer, Trunk-Mounted............................3-73
Center Console Storage Area...........................2-42
Center Front Passenger Position, Safety Belts....1-19
Chains, Tires..................................................5-66
Checking Coolant............................................5-25
Checking Engine Oil........................................5-13
2

Flash-To-Pass.................................................. 3-9
Flat Tire, Changing.........................................5-67
Flat Tire........................................................5-66
Fluid.............................................................5-21
Automatic Transaxle.....................................5-21
Power Steering...........................................5-35
Windshield Washer......................................5-36
FM Stereo.....................................................3-79
Following Distance..........................................4-40
Front Reading Lamps......................................3-19
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-45
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
System Inspection.......................................6-22
Fuses...........................................................5-86
Fuses and Circuit Breakers...........................5-86
G
Gage............................................................3-40
Engine Coolant Temperature.........................3-40
Fuel..........................................................3-45Gage (cont.)
Speedometer..............................................3-35
Tachometer.................................................3-35
Garage Door Opener.......................................2-38
Gasoline......................................................... 5-4
Octane........................................................ 5-4
Speci®cations............................................... 5-5
Gate Operator and Canadian Programming........2-41
Glove Box.....................................................2-42
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp High/Low-Beam Changer.................... 3-8
Headlamp......................................................5-47
Aiming.......................................................5-47
Horizontal Aiming.........................................5-49
Vertical Aiming............................................5-50
Headlamps On Reminder.................................3-15
Headlamps....................................................5-52
Bulb Replacement.......................................5-52
Front Turn Signal Lamps..............................5-53
Halogen Bulbs............................................5-52
Head-Up Display (HUD)...................................3-20
Heated Seats................................................... 1-4
6

T
Tachometer....................................................3-35
Taillamps.......................................................5-55
Back-Up Lamps...........................................5-55
Turn Signal, and Stoplamps..........................5-53
TCS Warning Light..........................................3-39
Testing the Alarm............................................2-19
Theater Dimming............................................3-18
Theft-Deterrent, Radio.....................................3-77
Theft-Deterrent Systems...................................2-18
Content Theft-Deterrent................................2-18
PASS-Key
žIII Operation..............................2-20
PASS-KeyžIII .............................................2-19
Throttle System Inspection...............................6-22
Tilt Wheel........................................................ 3-7
Tire In¯ation Check.........................................6-17
Tires.............................................................5-58
Buying New Tires........................................5-62
Chains.......................................................5-66
Changing a Flat Tire....................................5-67
Check Tire Pressure System.........................5-59
Compact Spare Tire.....................................5-76
If a Tire Goes Flat.......................................5-66
In¯ation -- Tire Pressure...............................5-58
Inspection and Rotation................................5-60
Uniform Tire Quality Grading.........................5-63Tires (cont.)
Wheel Alignment and Tire Balance.................5-64
Wheel Replacement.....................................5-65
When It Is Time for New Tires......................5-62
To Use the Engine Coolant Heater....................2-24
Top Strap Anchor Location...............................1-38
Top Strap......................................................1-37
Torque Lock...................................................2-30
Total Weight on Your Vehicle's Tires..................4-38
Towing..........................................................4-32
Recreational Vehicle.....................................4-32
Towing a Trailer..........................................4-35
Your Vehicle...............................................4-31
Traction........................................................... 4-9
Control System (TCS).................................... 4-9
Control System Warning Light.......................3-39
Trailer Brakes.................................................4-39
Trailer Wiring Harness.....................................4-39
Transaxle Operation, Automatic.........................2-25
Transaxle.......................................................5-21
Fluid, Automatic...........................................5-21
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-8
Trip Odometer................................................3-35
Trunk Lock Release........................................2-14
Trunk Security Override...................................2-15
14

Trunk-Mounted CD Changer.............................3-73
Trunk............................................................2-14
Turn and Lane-Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
Turn Signals When Towing a Trailer..................4-40
Twilight Sentinel
ž............................................3-16
U
Underbody Flushing Service.............................6-20
Understanding Radio Reception........................3-78
Uniform Tire Quality Grading............................5-63
United States ± Customer Assistance.................. 7-4
Used Replacement Wheels..............................5-66
Using Cleaner on Fabric..................................5-78
Using HomeLink
ž...........................................2-41
Using RDS....................................................3-58
V
Vehicle Identi®cation........................................5-85
Number (VIN).............................................5-85
Service Parts Identi®cation Label...................5-85
Vehicle Personalization....................................3-50
DIC ...........................................................3-50
Memory Seat and Mirrors.............................2-44
Vehicle Storage..............................................5-41
Vehicle............................................................ 4-5
Control........................................................ 4-5Vehicle (cont.)
Damage Warnings........................................... iv
Loading......................................................4-33
Service Soon Light......................................3-44
Symbols......................................................... iv
Ventilation Adjustment......................................3-30
Visors...........................................................2-17
W
Warning Lights, Gages and Indicators................3-32
Warnings.......................................................3-49
DIC Warnings and Messages........................3-49
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle......................................5-80
Weatherstrip Lubrication...................................6-18
Weight of the Trailer Tongue.............................4-37
Weight of the Trailer........................................4-37
What Kind of Engine Oil to Use........................5-14
What to Do with Used Oil................................5-17
What to Use..........................................5-24, 5-36
Wheels..........................................................5-64
Alignment and Tire Balance..........................5-64
Replacement...............................................5-65
When to Add Engine Oil..................................5-14
15