2003 BUICK CENTURY lock

Ending Cruise Control
There are two ways to turn off the cruise control:
·Step lightly on the brake pedal, or
·move the cruise switch to OFF.
Ending Speed Memory
When you turn off the cruise control or the ignition, or
shift into PARK (P) or NEUTRAL (N), your cruise control
set speed memory is erased.
Exterior Lamps
This control, located to the
left of the instrument
panel, operates the
exterior lamps.The exterior lamps control has three positions:
Off:Push the control all the way in to turn off all lamps
and lights.
Parking Lamps:Pull the control out, to the ®rst
position, to turn on the parking lamps together with the
following:
·Taillamps
·License Plate Lamps
·Sidemarker Lamps
·Instrument Panel Lights
Headlamps:Pull the control out all the way, to the
second position, to turn on the headlamps together with
the previously listed lamps and lights.
A warning chime will sound if you open the driver's door
when you turn the ignition switch to OFF, LOCK or
ACCESSORY with the lamps on.
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Daytime Running Lamps/Automatic
Headlamp System
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the
day. DRL can be helpful in many different driving
conditions, but they can be especially helpful in the short
periods after dawn and before sunset. Fully functional
daytime running lamps are required on all vehicles
®rst sold in Canada.
A light sensor on top of the instrument panel makes the
DRL work, so be sure it isn't covered.
The DRL system will make your front turn signal lamps
come on when the following conditions are met:
·The ignition is on,
·the exterior lamps control is off and
·the parking brake is released.
While the DRL are on, only your front turn signal lamps
will be on. The headlamps, taillamps, sidemarker
and other lamps won't be on. Your instrument panel
won't be lit up either.When it's dark enough outside, your front turn signal
lamps will turn off and your vehicle's headlamps
and parking lamps will turn on. The other lamps that
come on with your headlamps will also come on.
When it's bright enough outside, your headlamps will
go off and your front turn signal lamps will come on.
To idle your vehicle with the DRL and automatic
headlamp control off, set the parking brake while the
ignition is in OFF or LOCK. Then start your vehicle. The
DRL, headlamps and parking lamps will stay off until
you release the parking brake.
To turn off the automatic headlamp feature when it's
dark outside, move the exterior lamps control to
the parking lamp position. Your parking lamps will
remain illuminated and your headlamps will turn off.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
3-12

Delayed Headlamps
Delayed headlamp illumination provides a period of
exterior lighting as you leave your vehicle's area. The
feature is activated when your vehicle's headlamps
are on due to the automatic headlamp control feature
described previously in this section, and when your
vehicle's ignition is turned off. Your headlamps will then
remain on until the exterior lamps control is moved
from OFF to the parking lamp position or until a
90 second lighting period has ended.
If you turn off the ignition with the exterior lamps control
in the parking lamp or headlamp position, the delayed
headlamp illumination cycle will not occur.
You can customize the vehicle to activate delayed
headlamp illumination when your vehicle's ignition is
turned off under the conditions described above, or you
may choose not to activate this feature under any
conditions.
You can turn the feature on and off when you perform
the following sequence:
1. Turn the ignition key to RUN.
2. Close all the doors.3. Press and hold the power door lock switch. While
holding the door lock switch, cycle the exterior
lamps control on and then off two times.
4. Release the power door lock switch. These steps
must be carried out in a time period of less than
10 seconds, followed by a delay period of no more
than 10 seconds.
5. Then, press and hold the power door unlock switch.
While holding the door unlock switch, turn the
exterior lamps control on and then off two times.
Release the courtesy door unlock switch. These
operations must be carried out in a time period of
less than 10 seconds.
After releasing the door unlock switch, a single chime
will be heard if the delayed headlamp illumination
function has been disabled; two chimes will be heard if
the feature has been enabled. Disconnecting the
vehicle's battery for up to a year will not change the
programmed operation for this feature.
3-13

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.
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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

9FAN:The left knob controls the fan speed.
OFF:Turn the knob all the way counterclockwise to
turn off the fan.
LO (Low Fan Speed):This setting creates the lowest
fan speed.
HI (High Fan Speed):This setting creates the highest
fan speed.
DRIVER (Driver's Side Temperature):The lever on
the left adjusts the air temperature for the driver's
side outlets. Slide the lever up to raise the temperature
and down to lower the temperature.
PASSENGER (Passenger's Side Temperature):
The lever on the right adjusts the air temperature for the
passenger's side outlets. Slide the lever up to raise
the temperature and down to lower the temperature.
"(Air Conditioning):Press this button to turn the
air-conditioning on and off. An indicator light above the
button will come on when the air conditioning is on.
During daylight hours you may need to adjust the interior
lighting control to the highest setting in order to see the
light. The system will cool and dehumidify the air inside
the vehicle when the A/C indicator light is on.On very hot days, open the windows long enough to let
hot, inside air escape. This reduces the time for the
vehicle to cool down.
For a quick cool-down on a very hot day, use MAX with
the temperature levers all the way in the blue area. If this
setting is used for long periods of time, the air in your
vehicle may become too dry.
For normal cooling on hot days, use VENT with the
temperature levers in the blue area. The system will bring
in outside air and cool it.
On cool, but sunny days, the sun may warm your upper
body, but your lower body may not be warm enough.
Select BI-LEV and set the temperature levers to a
comfortable setting. The system will bring in outside air
and direct it to your upper body, while sending slightly
warmed air to your lower body. Push the A/C button for
cooling.
3-18

Outlet Adjustment
Open and close the air
outlets, or adjust the
direction of the air¯ow by
moving the levers in
the center of each outlet.
Operation Tips
·Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that may
block the ¯ow of air into your vehicle.
·Use of non-GM approved hood de¯ectors may
adversely affect the performance of the system.
·Keep the path under the front seats clear of objects
to help circulate the air inside of your vehicle more
effectively.
·If the air¯ow seems low when the fan is at the
highest setting, the passenger compartment
air ®lter, if equipped, may need to be replaced. For
more information, see
Passenger Compartment
Air Filter on page 3-20andPart A: Scheduled
Maintenance Services on page 6-4
Passenger Compartment Air Filter
The passenger compartment air ®lter is located in
the engine compartment below the air inlet grille, near
the passenger's side windshield wiper arm.
The ®lter traps most of the pollen from the air entering
the air conditioning module. Like your engine's air
cleaner ®lter, it may need to be changed periodically.
For information on how often to change the passenger
compartment air ®lter, see
Scheduled Maintenance
on page 6-5.
To change the passenger compartment air ®lter, use the
following steps:
1. Put the ignition in ACCESSORY and turn the
windshield wipers on.
2. Turn the ignition to OFF when the windshield
wipers are in the upright position.
3. Raise the hood.
3-20

Anti-Lock Brake System Warning
Light
If your vehicle has anti-lock brakes, this warning light
will come on for a few seconds when you turn the
ignition key to RUN. If the anti-lock brake system
warning light stays on longer than normal after you've
started your engine, turn the ignition off. Or, if the
light comes on and stays on when you're driving, stop
as soon as possible and turn the ignition off. Then
start the engine again to reset the system. If the light
still stays on, or comes on again while you're driving, the
anti-lock brake system needs service. If the light is on
and the regular brake system warning light isn't on, you
still have brakes, but you don't have anti-lock brakes.
The anti-lock brake system warning light will come
on brie¯y when you turn the ignition key to RUN. This is
normal. If the light doesn't come on then, have it
®xed so it will be ready to warn you if there is a problem.
Enhanced Traction System Warning
Light
If your vehicle has the
Enhanced Traction
System, the warning light
may come on for the
following reasons:
·If you turn the system off by shifting to SECOND (2)
or FIRST (1), the warning light will come on and
stay on. To turn the system back on, shift to
THIRD (3) or AUTOMATIC OVERDRIVE (
X). See
Enhanced Traction System (ETS) on page 4-10.
·If the Enhanced Traction System warning light
comes on and stays on for an extended period
of time when the system is turned on, your vehicle
needs service. Adjust your driving accordingly.
·The warning light will come on when you set your
parking brake with the engine running, and it will
stay on if your parking brake doesn't release fully. United States
Canada
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