2008 BUICK LUCERNE Turn signal

Service............................................................5-3
Accessories and Modications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of Your
Vehicle......................................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-6
Gasoline Specications....................................5-6
California Fuel...............................................5-6
Additives.......................................................5-7
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................................5-20
Automatic Transmission Fluid.........................5-21
Engine Coolant.............................................5-24
Radiator Pressure Cap..................................5-28
Coolant Surge Tank Pressure Cap..................5-28
Engine Overheating.......................................5-28Overheated Engine Protection
Operating Mode........................................5-30
Cooling System (3.8L V6 Engine)....................5-30
Cooling System (4.6L V8 Engine)....................5-36
Power Steering Fluid.....................................5-40
Windshield Washer Fluid................................5-41
Brakes........................................................5-42
Battery........................................................5-46
Jump Starting...............................................5-48
Headlamp Aiming...........................................5-53
Bulb Replacement..........................................5-56
Halogen Bulbs..............................................5-56
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps.....................................5-56
Taillamps and Back-Up Lamps.......................5-57
License Plate Lamp......................................5-58
Replacement Bulbs.......................................5-59
Windshield Wiper Blade Replacement..............5-59
Tires..............................................................5-60
Tire Sidewall Labeling...................................5-61
Tire Terminology and Denitions.....................5-64
Ination - Tire Pressure.................................5-67
Tire Pressure Monitor System.........................5-69
Tire Pressure Monitor Operation.....................5-70
Tire Inspection and Rotation...........................5-74
Section 5 Service and Appearance Care
5-1

Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 5-59.
For any bulb changing procedure not listed in this
section, contact your dealer/retailer.
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.
Taillamps, Turn Signal, Stoplamps
and Sidemarker Lamps
A. Sidemarker Lamp
B. Stoplamp/Taillamp/Turn Signal Lamp
5-56

Replacement Bulbs
Exterior Lamps Bulb Number
Back-up Lamp 921
Sidemarker, License Plate Lamp,
and Auxiliary Taillamp194
Stoplamp, Taillamp, and Turn
Signal Lamp3057K
For replacement bulbs not listed here, contact your
dealer/retailer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for wear
or cracking. SeeScheduled Maintenance on page 6-4.
It is a good idea to clean or replace the wiper blade
assembly on a regular basis or when worn. For proper
windshield wiper blade length and type, seeNormal
Maintenance Replacement Parts on page 6-13.To replace the wiper blade assembly, do the following:
1. Turn the ignition to ACCESSORY, with the
engine off.
2. Pull the windshield wiper assembly away from the
windshield.
3. Squeeze the tabs on each side of the wiper blade
assembly and slide the assembly off the end of the
wiper arm.
5-59

TPMS Sensor Matching Process
Each TPMS sensor has a unique identication code.
Any time you rotate your vehicle’s tires or replace one or
more of the TPMS sensors, the identication codes
will need to be matched to the new tire/wheel position.
The sensors are matched to the tire/wheel positions
in the following order: driver side front tire, passenger
side front tire, passenger side rear tire, and driver
side rear tire using a TPMS diagnostic tool. See your
dealer/retailer for service.
The TPMS sensors can also be matched to each
tire/wheel position by increasing or decreasing the tire’s
air pressure. If increasing the tire’s air pressure, do
not exceed the maximum ination pressure indicated on
the tire’s sidewall.
To decrease air-pressure out of a tire you can use the
pointed end of the valve cap, a pencil-style air pressure
gage, or a key.
You have two minutes to match the rst tire/wheel
position, and ve minutes overall to match all four
tire/wheel positions. If it takes longer than two minutes,
to match the rst tire and wheel, or more than ve
minutes to match all four tire and wheel positions the
matching process stops and you need to start over.The TPMS sensor matching process is outlined below:
1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the
engine off.
3. Press the Remote Keyless Entry (RKE) transmitter’s
LOCK and UNLOCK buttons at the same time for
approximately ve seconds. The horn sounds twice
to signal the receiver is in relearn mode and
TIRE LEARNING ACTIVE message displays on the
DIC screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve cap stem.
Activate the TPMS sensor by increasing or
decreasing the tire’s air pressure for ve seconds,
or until a horn chirp sounds. The horn chirp,
which may take up to 30 seconds to sound,
conrms that the sensor identication code has
been matched to this tire and wheel position.
6. Proceed to the passenger side front tire, and repeat
the procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat
the procedure in Step 5.
5-73

Fuses Usage
8 Steering Wheel Illumination
9 Front Heated/Cooled Seat Module
10Run 2 - Heated/Cooled Seats,
Heated Washer Fluid
11 Rear Heated Seat Module (optional)
12 RPA Module
13 PASS-Key
®III System
14 Unlock/Lock Module
15 Magnetic Ride Control
16 Not Used
17 Sunroof
18 Body Control Module (BCM) Dim
19 Body Control Module (BCM)
20 Run 1-Heated Steering Wheel
21 Ignition Switch
22 Driver Door Module
23 Rear Lumbar (optional)
24 Electronic Leveling Control Module
25Body Control Module (Left Turn
Signal)
26Cigarette Lighter, Auxiliary Power
Outlet
Fuses Usage
27 Navigation (optional)
28 Retained Accessory Power 1 (RAP)
29 Passenger Door Module
30 Sensing and Diagnostic Module
31 Accessory Power Outlets
32Body Control Module (BCM)
(Inadvertent)
33 Retained Accessory Power 2 (RAP)
34 CanisterVent Solenoid
35 Body Control Module (Courtesy)
36Body Control Module (Right Turn
Signal)
37 Trunk Release
38 Amplier, Radio
39 Body Control Module (CHMSL)
40 Body Control Module
41 Stoplamp (optional)
42 OnStar
®Module
43 Body Modules
44 Radio
45 Door Unlatch (optional)
46 Rear Defogger (J-Case)
5-111

Audio System(s).............................................3-78
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-25
B
Backglass Antenna..........................................3-97
Battery..........................................................5-46
Electric Power Management..........................3-19
Exterior Lighting Battery Saver......................3-17
Inadvertent Power Saver..............................3-19
Run-Down Protection...................................3-20
Brake
Emergencies................................................ 4-5
Brakes..........................................................5-42
Panic Assist................................................. 4-7
System Warning Light..................................3-39
Braking........................................................... 4-3
Braking in Emergencies..................................... 4-5
Break-In, New Vehicle.....................................2-20
Bulb Replacement...........................................5-56
Halogen Bulbs............................................5-56
Headlamp Aiming........................................5-53
License Plate Lamps....................................5-58
Replacement Bulbs......................................5-59
Taillamps and Back-Up Lamps.......................5-57
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps...................................5-56
Buying New Tires...........................................5-76
C
Calibration.............................1-11, 2-34, 2-36, 3-54
California Fuel.................................................. 5-6
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-113
Carbon Monoxide...................2-13, 2-32, 4-15, 4-26
Care of
Safety Belts................................................5-97
CD, MP3 .......................................................3-89
Center Console Storage Area...........................2-56
Center Flex Storage Unit.................................2-57
Center Seat...................................................1-11
Chains, Tire...................................................5-82
Charging System Light....................................3-38
Check
Engine Light...............................................3-44
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-102
Child Restraints
Child Restraint Systems...............................1-40
Infants and Young Children...........................1-36
Lower Anchors and Tethers for Children..........1-43
Older Children.............................................1-33
Securing a Child Restraint in a Rear Seat
Position..................................................1-50
2

S
Safety Belt
Reminder Light............................................3-34
Safety Belts
Care of......................................................5-97
How to Wear Safety Belts Properly................1-17
Lap Belt.....................................................1-31
Lap-Shoulder Belt........................................1-25
Safety Belt Extender....................................1-32
Safety Belt Use During Pregnancy.................1-31
Safety Belts Are for Everyone.......................1-12
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
Center Seat................................................1-11
Head Restraints..........................................1-10
Heated and Cooled Seats.............................. 1-5
Heated Seats............................................... 1-4
Memory, Mirrors............................................ 1-6
Power Lumbar.............................................. 1-3
Power Seats................................................. 1-3
Reclining Seatbacks...................................... 1-7
Securing a Child Restraint
Center Front Seat Position............................1-53
Rear Seat Position......................................1-50
Right Front Seat Position..............................1-54
Security Light.................................................3-47Service........................................................... 5-3
Accessories and Modications......................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-5
California Pershlorate Materials
Requirements............................................ 5-4
California Proposition 65 Warning.................... 5-4
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-44
Publications Ordering Information...................7-16
Service, Scheduling Appointments.....................7-10
Servicing Your Airbag-Equipped Vehicle..............1-72
Sheet Metal Damage.....................................5-101
Shifting Into Park (P).......................................2-28
Shifting Out of Park (P)...................................2-31
Side Blind Zone Alert......................................2-41
Signals, Turn and Lane-Change
.......................... 3-8
Spare Tire
Compact....................................................5-94
Installing....................................................5-86
Removing...................................................5-85
Storing.......................................................5-92
Specications, Capacities...............................5-113
Speedometer..................................................3-34
StabiliTrak
®System.......................................... 4-6
StabiliTrak®Indicator Light................................3-41
Start Vehicle, Remote....................................... 2-8
Starting the Engine.........................................2-22
11

Steering.......................................................... 4-7
Steering Wheel Controls, Audio.........................3-95
Steering Wheel, Heated..................................... 3-7
Steering Wheel, Power Tilt Wheel and Telescopic
Steering Column........................................... 3-7
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-56
Center Flex Storage Unit..............................2-57
Convenience Net.........................................2-57
Cupholder(s)...............................................2-56
Front Storage Area......................................2-56
Glove Box..................................................2-56
Rear Seat Armrest.......................................2-57
Stuck in Sand, Mud, Ice, or Snow.....................4-18
Sun Visors.....................................................2-17
Sunroof.........................................................2-58
T
Tachometer....................................................3-34
Taillamps
Back-Up Lamps...........................................5-57
Turn Signal, Stoplamps and
Sidemarker Lamps...................................5-56
TCS Warning Light..........................................3-40
Telescopic Steering Column, Power Tilt Wheel...... 3-7
Theater Dimming............................................3-18
Theft-Deterrent, Radio.....................................3-94Theft-Deterrent Systems...................................2-17
Content Theft-Deterrent................................2-17
PASS-Key
®III+...........................................2-18
PASS-Key®III+ Operation.............................2-19
Tilt Wheel........................................................ 3-6
Time, Setting..................................................3-76
Tire
Pressure Light.............................................3-43
Tires.............................................................5-60
Aluminum or Chrome-Plated Wheels,
Cleaning...............................................5-100
Buying New Tires........................................5-76
Chains.......................................................5-82
Changing a Flat Tire....................................5-84
Cleaning...................................................5-101
Compact Spare Tire.....................................5-94
Different Size..............................................5-78
If a Tire Goes Flat.......................................5-83
Ination - Tire Pressure................................5-67
Inspection and Rotation................................5-74
Installing the Spare Tire................................5-86
Pressure Monitor Operation...........................5-70
Pressure Monitor System..............................5-69
Removing the Flat Tire.................................5-86
Removing the Spare Tire and Tools...............5-85
Storing a Flat or Spare Tire and Tools............5-92
Tire Sidewall Labeling..................................5-61
Tire Terminology and Denitions....................5-64
Uniform Tire Quality Grading.........................5-78
12