door lock BUICK CENTURY 2003 Owner's Guide

Interior Lamps
Instrument Panel Brightness
You can brighten or dim the instrument panel lights by
turning the exterior lamps control.
Turning the control all the way clockwise turns on the
courtesy lamps. If the control is turned all the way
counterclockwise, the lamps and lights will turn off.
Courtesy Lamps
When any door is opened, several courtesy lamps come
on. They make it easy for you to enter and leave your
vehicle. You can also turn these lamps on by turning the
exterior lamps control all the way clockwise to MAX.
Entry Lighting
The courtesy lamps will come on and stay on for a set
time whenever you press UNLOCK on the remote
keyless entry transmitter.
If you open a door, the lamps will stay on while it's open
and then turn off automatically about 25 seconds after
you close it. If you press UNLOCK and don't open
a door, the lamps will turn off after about 40 seconds.Entry lighting includes a feature called theater dimming.
With theater dimming, the lamps don't just turn off at
the end of the delay time. Instead, they slowly dim after
the delay time until they go out. The delay time is
canceled if you turn the ignition key to RUN or START.
When the ignition is on, entry lighing is inactive,
which means the courtesy lamps won't come on unless
a door is opened.
Delayed Entry Lighting
Delayed entry lighting lights your vehicle's interior for a
period of time after all the doors have been closed.
The ignition must be off for delayed entry lighting
to work. Just after all the doors have been closed, the
delayed entry lighting feature will continue to work
until one of the following occurs:
·The ignition is in RUN, or
·the doors are locked, or
·an illumination period of 25 seconds has elapsed.
If during the illumination period a door is opened,
the timed illumination period will be canceled and the
interior lamps will remain on.
3-14

Delayed Exit Lighting
This feature illuminates the interior for a period of time
after the ignition key is removed from the ignition.
The ignition must be off for delayed exit lighting to work.
When the ignition key is removed, interior illumination
will activate and remain on until one of the following
occurs:
·The ignition is in RUN, or
·the power door locks are activated, or
·an illumination period of 25 seconds has elapsed.
If during the illumination period a door is opened,
the timed illumination period will be canceled and the
interior lamps will remain on.
Reading Lamps
The reading lamps are located on the underside of the
rearview mirror.
Press the button next to each lamp to turn it on and off.
Dome Lamp
The dome lamp will come on when you open a door.
Battery Rundown Protection
The vehicle has a feature to help prevent draining the
battery in case the interior courtesy lamps, reading
lamps, visor vanity lamps, trunk lamp, underhood lamp
or glove box lamps are left on when the ignition is in
OFF. If any of these lamps are left on, they will
automatically turn off after 20 minutes. The lamps won't
come back on again until you do one of the following:
·Turn the ignition on,
·turn the exterior lamps control off, then on, or
·open a door.
If your vehicle has less than 15 miles (25 km) on the
odometer, the battery saver will turn off the lamps after
only three minutes.
3-15

Circuit
BreakersUsage
POWER
SEATSPower Seats
Blank Not Used
Fuses Usage
PARK LOCK Ignition Key Solenoid
Blank Not Used
Blank Not Used
PCM, BCM,
U/H RELAYIgnition Signal: Hot in Run and Start,
Powertrain Control Module, Body
Control Module, Underhood Relay
RADIO PREM.
SOUNDRemote Radio Premium Sound
POWER
MIRRORSPower Mirrors
Blank Not Used
PANEL
DIMMINGPanel Dimming
Blank Not Used
IGN 0,
CLUSTER,
PCM, BCMIgnition Signal: Hot in Run, Unlock
and Start, Cluster, Powertrain
Control Module, Body Control
Module
Blank Not Used
Fuses Usage
Blank Not Used
Blank Not Used
INADV POWER
BUSInterior Lamps
DOOR LOCKS Door Locks
Blank Not Used
TAIL LAMPS,
LIC LAMPSTaillamps, License Plate Lamps
RADIO Radio
HEATED
MIRRORNot Used
CRUISE Cruise Control
Blank Not Used
CLUSTER Instrument Panel Cluster
CIGAR LTR Cigarette Lighter
STOP LAMPS Stoplamps
ONSTAR OnStar
ž
FRT PARK LPS Front Parking Lamps
Blank Not Used
CRANK
SIGNAL, BCM,
CLUSTERCrank Signal, Body Control Module,
Cluster, Powertrain Control Module
HVACIgnition Signal, Heating Ventilation
Air Conditioning Control Head
5-90

Fuses Usage
4High Blower, Hazard Flasher,
Stoplamps, Power Mirror, Door
Locks
5Ignition Switch, BTSI, Stoplamps,
Anti-Lock Brake System, Turn
Signals, Cluster, Air Bag, Daytime
Running Lamps Module
6 Cooling Fan
7Retained Accessory Power, Keyless
Entry, Data Link, Heating Ventilation
Air Conditioning Head, Cluster,
Radio, Cigarette Lighter
8Ignition Switch, Wipers, Radio,
Steering Wheel Controls, Body
Control Module, Power Windows,
Sunroof, Heating Ventilation Air
Conditioning Controls, Daytime
Running Lamps, Rear Window
Defogger Relay
Relays Usage
9 Cooling Fan 2
10 Cooling Fan 3
11 Starter Solenoid
12 Cooling Fan 1
13 Ignition Main
14 Air Pump (Optional)
15 Not Used
16 Horn
17 Fog Lamps
18 Not Used
19 Fuel Pump
5-92

At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag
system does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace
blade inserts that appear worn or damaged or that
streak or miss areas of the windshield. Also see
ªWindshield Wiper and Wiper Bladesº under
Cleaning
the Outside of Your Vehicle on page 5-82.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,damp weather more frequent application may be
required. See
Part D: Recommended Fluids and
Lubricants on page 6-16.
Automatic Transaxle Check
Check the transaxle ¯uid level; add if needed. SeeAutomatic Transaxle Fluid on page 5-19. A ¯uid loss
may indicate a problem. Check the system and repair if
needed.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
speci®ed in Part D.
Body Lubrication Service
Lubricate all hinges and latches, including those for the
body doors, hood, secondary latch, pivots, spring
anchor, release pawl, rear compartment, glove box door
and console door. Part D tells you what to use. More
frequent lubrication may be required when exposed to a
corrosive environment.
6-11

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identi®ed below by name, part
number or speci®cation may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil with the American
Petroleum Institute Certi®ed for
Gasoline Engines starburst symbol
of the proper viscosity. To determine
the preferred viscosity for your
vehicle's engine, see
Engine Oil on
page 5-13.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
ž
Coolant. SeeEngine Coolant on
page 5-23.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake ¯uid.
Windshield
Washer SolventGM Optikleen
žWasher Solvent or
equivalent.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 1052884, in Canada
993294, or equivalent).
Automatic
TransaxleDEXRON
ž-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring Anchor
and Release
PawlLubriplate Lubricant Aerosol (GM
Part No. U.S. 12346293, in Canada
992723, or equivalent) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and Door
HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 109435474, or equivalent).
Weatherstrip
ConditioningDielectric Silicone Grease (GM Part
No. U.S. 12345579, in Canada
10953014, or equivalent).
6-16

Customer Assistance Information (cont.)
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-6
Reporting Safety Defects to General Motors....7-11
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the United States
Government............................................7-10
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-11
D
Daytime Running Lamps/Automatic Headlamp
System......................................................3-12
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-19
Delayed Entry Lighting.....................................3-14
Delayed Exit Lighting.......................................3-15
Delayed Headlamps........................................3-13
Delayed Locking............................................... 2-7
Dinghy Towing................................................4-32Disabling the Theft-Deterrent Feature.................3-49
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-33
Dome Lamp...................................................3-15
Door.............................................................2-10
Locks........................................................2-10
Power Door Locks.......................................2-11
Programmable Automatic Door Locks.............2-11
Trunk Ajar Warning Light..............................3-36
Driver............................................................1-12
Position, Safety Belt.....................................1-12
Driving On Grades..........................................4-40
Driving on Snow or Ice....................................4-27
Driving Through Deep Standing Water...............4-20
Driving Through Flowing Water.........................4-20
Driving with a Trailer.......................................4-39
Driving..........................................................4-16
At Night.....................................................4-16
City...........................................................4-21
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-22
Hill and Mountain Roads..............................4-24
In Rain and on Wet Roads...........................4-18
Winter........................................................4-26
Dual Climate Control System............................3-17
4

LATCH System (cont.)
Securing a Child Restraint Designed for the
LATCH System........................................1-45
Leaving Your Vehicle With the Engine Running . . . 2-28
Leaving Your Vehicle.......................................2-12
Lighted Visor Vanity Mirrors..............................2-16
Light.............................................................3-25
Air Bag Readiness.......................................3-25
Anti-Lock Brake System Warning...................3-28
Brake System Warning.................................3-27
Change Engine Oil......................................3-35
Charging System.........................................3-26
Cruise Control.............................................3-36
Door/Trunk Ajar Warning...............................3-36
Engine Coolant Temperature Warning.............3-29
Enhanced Traction System (ETS) Warning
Light......................................................3-28
Low Fuel Warning.......................................3-38
Low Oil Level.............................................3-35
Low Traction...............................................3-29
Low Washer Fluid Warning...........................3-36
Malfunction Indicator....................................3-31
Oil Pressure...............................................3-34
Safety Belt Reminder...................................3-24
Security.....................................................3-36
Service Vehicle Soon...................................3-37
Tire Pressure..............................................3-30
Loading Your Vehicle.......................................4-33
Lockout Protection..........................................2-12
Locks............................................................2-10Door..........................................................2-10
Leaving Your Vehicle....................................2-12
Lockout Protection.......................................2-12
Power Door................................................2-11
Programmable Automatic Door Locks.............2-11
Loss of Control...............................................4-15
Low Fuel Warning Light...................................3-38
Low Traction Light..........................................3-29
Low Washer Fluid Warning Light.......................3-36
M
Maintenance, Normal Replacement Parts............5-95
Maintenance Schedule.....................................6-10
At Each Fuel Fill.........................................6-10
At Least Once a Month................................6-10
At Least Once a Year..................................6-11
At Least Twice a Year..................................6-11
Brake System Inspection..............................6-15
Engine Cooling System Inspection.................6-14
Exhaust System Inspection...........................6-14
Fuel System Inspection................................6-14
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-10
Part C - Periodic MaintenanceInspections......6-14
Part D - Recommended Fluids and Lubricants . . . 6-16
8

Other Warning Devices...................................... 3-4
Outlet Adjustment............................................3-20
Outside.........................................................2-33
Convex Mirror.............................................2-33
Power Mirrors.............................................2-33
Overheated Engine Protection Operating Mode . . . 5-26
Overseas ± Customer Assistance........................ 7-5
Owners, Canadian............................................... ii
Owner's Information........................................7-12
P
Park (P)........................................................2-29
Shifting Out of............................................2-29
Parking Brake and Automatic Transaxle Park (P)
Mechanism Check.......................................6-13
Parking on Hills..............................................4-40
Parking.........................................................2-26
Brake........................................................2-26
Over Things That Burn.................................2-29
Park(P).........................................................2-26
Shifting Into................................................2-26Part A - Scheduled Maintenance Services............ 6-4
Part B - Owner Checks and Services................6-10
Part C - Periodic MaintenanceInspections..........6-14
Part D - Recommended Fluids and Lubricants....6-16
Part E - Maintenance Record...........................6-17
Passenger Compartment Air Filter.....................3-20
Passing.................................................4-14, 4-39
PASS-Key
žII .................................................2-17
Plan Ahead When Possible................................ 7-8
Playing a Cassette Tape..................................3-44
Playing a Compact Disc...................................3-46
Playing the Radio...................................3-40, 3-42
Power Steering...............................................4-11
Power...........................................................3-16
Auxiliary Connection.....................................3-16
Door Locks.................................................2-11
Drop..........................................................3-16
Electrical System.........................................5-88
Six-Way Seats.............................................. 1-3
Steering Fluid.............................................5-36
Windows....................................................2-16
Programmable Automatic Door Locks.................2-11
10