1999 BUICK CENTURY Owner's Manual

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Resuming a Set Speed
Suppose you set your cruise control at a desired speed
and then you apply the brake. This, of course, shuts off
the cruise control. But you don't need to reset it.
Once you're going about
25 mph (40 km/h) or more,
you can move the cruise
control switch from ON to
R/A (Resume/Accelerate)
for about half a second.
You'll go right back up to
your chosen speed and
stay there.
Increasing Speed While Using Cruise Control
There are two ways to go to a higher speed:

Use the accelerator pedal to get to the higher speed.
Push in the SET/COAST button, then release the
button and the accelerator pedal. You'll now cruise at
the higher speed.
Move the cruise switch from ON to R/A. Hold it
there until you get up to the speed you want, and
then release the switch. (To increase your speed in
very small amounts, move the switch to R/A for
less than half a second and then release it. Each time
you do this, your vehicle will go about 1 mph
(1.6 km/h) faster.)
The accelerate feature will only work after you
set the cruise control speed by pushing the
SET/COAST button.
Reducing Speed While Using Cruise Control
There are two ways to reduce your speed while using
cruise control:

Push in the SET/COAST button until you reach the
lower speed you want, then release it.

To slow down in very small amounts, push the
SET/COAST button for less than half a second. Each
time you do this, you'll go 1 mph (1.6 km/h) slower.
Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase your speed. When
you take your foot off the pedal, your vehicle will slow
down to the cruise control speed you set earlier.

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Using Cruise Control on Hills
How well your cruise control will work on hills depends
upon your speed, load and the steepness of the hills.
When going up steep hills, you may have to step on the
accelerator pedal to maintain your speed. When going
downhill, you may have to brake or shift to a lower gear
to keep your speed down. Of course, applying the brake
takes you out of cruise control. Many drivers find this to
be too much trouble and don't use cruise control on
steep hills.
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.
Erasing Cruise 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
The lamp controls are located on the instrument panel.
They control these systems:

Headlamps

Taillamps

Parking Lamps

License Lamps

Sidemarker Lamps

Instrument Panel Lights

Courtesy Lamps
If you pull the knob out
halfway, it will turn on your
parking lamps and your
other operating lamps. If
you pull the knob all the
way out, your headlamps
will then come on.

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Push the knob in all the way to turn off the lamps.
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.
Daytime Running Lamps / Automatic
Headlamp Control
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.
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 ignition is on,

the headlamp switch is off and

the parking brake is released.
When 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 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.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Delayed Headlamp Illumination
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 headlamp switch 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 headlamp switch in
the parking lamp or headlamp position, the Delayed
Headlamp Illumination cycle will not occur.

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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 with the doors
closed and the ignition key in RUN:
1. Press and hold the power door lock switch. While
holding the door lock switch, cycle the headlamp
switch on and then off two times.
2. 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.
3. Then, press and hold the power door unlock switch.
While holding the door unlock switch, turn the headlamp
switch 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 of this feature.Interior Lamps
Instrument Panel Brightness Control
You can brighten or dim the instrument panel lights by
moving the LIGHTS dial. If you turn the dial past
MAX, your courtesy or interior lamps will come on.
Courtesy Lamps
When any door is opened, several lamps come on. These
lamps are courtesy lamps. They make it easy for you to
enter and leave your vehicle. You can also turn these
lamps on by twisting or turning the interior lights knob
all the way to the right.
Illuminated Entry
Your 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.

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Illuminated Entry 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, so the lamps will dim right away.
When the ignition is on, Illuminated Entry 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:

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 since a door is open.
Delayed Exit Lighting
This feature illuminates your vehicle's interior for a
period of time after the ignition key is removed from
the ignition.
The vehicle's ignition must be off for Delayed Exit
Lighting to work. When the ignition key is removed,
interior illumination will activate and remain on until:

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 since a door is open.

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2-42 Rearview Mirror Reading Lamps
Use the switch next to each lamp to turn them on and off.
Dome Lamp (If Equipped)
The dome lamp will come on when you open the doors.
Battery Rundown Protection
Your vehicle has a feature to help prevent you from
draining the battery in case you accidentally leave the
interior courtesy lamps, reading/map lamps, visor vanity
lamps, trunk lamp, underhood lamp or glove box lamps
on. If you leave any of these lamps on, they will
automatically turn off after 20 minutes, if the ignition is
in OFF. The lamps won't come back on again until you:

turn the ignition on,

turn the lamp switch off, then on, or

open a door.
Note that 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.
Retained Accessory Power (If Equipped)
With retained accessory power, your power windows,
audio system and sunroof will continue to work up to
10 minutes after the ignition key is turned to OFF and
before any of the doors are opened.
Mirrors
Adjust all the mirrors so you can see clearly when you
are sitting in a comfortable driving position.

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2-43 Electrochromic Automatic Dimming
Rearview Mirror (If Equipped)
Your vehicle may have an electrochromic day/night
rearview mirror. Push the button in the center of the
mirror to turn this feature on. The mirror will darken
gradually to reduce glare from headlamps behind you.
This may take a few moments.
The mirror's two outer buttons operate the lights on the
bottom sides of the mirror.
One photocell on the front of the mirror senses when it
is becoming dark outside. Another photocell, facing
rearward, senses headlamps behind you. To turn the
electrochromic feature off, press the button in the center
of the mirror again.
To keep the photocells operating well, occasionally
clean them with a cotton swab and glass cleaner.
Power Outside Foldaway Mirrors
The power mirror control
switches are located near
the driver's side window, on
the armrest. To choose
either the left or right
outside mirror, move the top
switch from left through
neutral to right. Press any of
the four buttons located
below the top switch to
move the mirrors in the
desired direction.
Adjust each mirror so you can see the side of your
vehicle and the area behind your vehicle.
These mirrors can also be folded rearward manually. This
feature is particularly useful in automatic car washes and
when maneuvering your vehicle in narrow spaces.

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2-44 Automatic Dimming/Heated Outside
Rearview Mirror (If Equipped)
If you have this feature, the driver's side outside mirror
will adjust for the glare of headlamps behind you. This
feature is controlled by the on and off settings on the
electrochromic automatic dimming rearview mirror.
(See ªElectrochromic Automatic Dimming Rearview
Mirrorº) earlier in this section.
The left and right outside mirrors are also heated when
you activate the rear window defogger. (See ªRear
Window Defoggerº in the Index.)
Both outside mirrors can be folded forward or rearward.
This feature is particularly useful in automatic car washes.
Convex Outside Mirror
Your passenger's side mirror is convex. A convex
mirror's surface is curved so you can see more from the
driver's seat.
CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder before
changing lanes.
Storage Compartments
Glove Box
Use the door key to lock and unlock the glove box. To
open, lift the latch.
Front Storage Armrest
To use the storage area, fold down the armrest located in
the center front seat. Press the latch on the front edge
and pull up. Dual oversized cupholders will fold out
from within the storage armrest.