brake BUICK CENTURY 2002 Owner's Manual

1-27
In many crashes severe enough to inflate an air bag,
windshields are broken by vehicle deformation.
Additional windshield breakage may also occur from the
right front passenger air bag.

Air bags are designed to inflate only once. After an
air bag inflates, you'll need some new parts for your
air bag system. If you don't get them, the air bag
system won't be there to help protect you in another
crash. A new system will include air bag modules
and possibly other parts. The service manual for your
vehicle covers the need to replace other parts.

Your vehicle is equipped with a crash sensing and
diagnostic module, which records information about
the frontal air bag system. The module records
information about the readiness of the system, when
the system commands air bag inflation and driver's
safety belt usage at deployment. The module also
records speed, engine rpm, brake and throttle data.
Let only qualified technicians work on your air
bag systems. Improper service can mean that an
air bag system won't work properly. See your dealer
for service.
NOTICE:
If you damage the covering for the driver's or
the right front passenger's air bag, or the air bag
covering on the driver's seatback, the bag may
not work properly. You may have to replace the
air bag module in the steering wheel, both the
air bag module and the instrument panel for
the right front passenger's air bag, or the air
bag module and seatback for the driver's side
impact air bag. Do not open or break the air
bag coverings.

2-
2-1
Section 2 Features and Controls
Here you can learn about the many standard and optional features on your vehicle, and information on starting,
shifting and braking. Also explained are the instrument panel and the warning systems that tell you if everything is
working properly
-- and what to do if you have a problem.
2
-2 Windows
2
-4 Keys
2
-6 Door Locks
2
-10 Remote Keyless Entry
2
-17 Trunk
2
-22 Theft
2
-23 PASS-Key
II
2
-24 New Vehicle ªBreak-Inº
2
-24 Ignition Positions
2
-26 Starting Your Engine
2
-27 Engine Coolant Heater (If Equipped)
2
-28 Automatic Transaxle Operation
2
-32 Parking Brake
2
-33 Shifting Into PARK (P)
2
-35 Shifting Out of PARK (P)
2
-35 Parking Over Things That Burn
2
-36 Engine Exhaust2
-36 Running Your Engine While You're Parked
2
-37 Horn
2
-37 Tilt Wheel
2
-38 Turn Signal/Multifunction Lever
2
-43 Exterior Lamps
2
-46 Interior Lamps
2
-48 Mirrors
2
-52 Storage Compartments
2
-54 Sun Visors
2
-54 Auxiliary Power Outlet (If Equipped)
2
-56 Auxiliary Power Connection (Power Drop)
2
-57 OnStar
System (If Equipped)
2
-61 Sunroof (Option)
2
-62 The Instrument Panel -- Your
Information System
2
-64 Instrument Panel Cluster
2
-66 Warning Lights, Gages and Indicators

2-7 Power Door Locks
Your vehicle is equipped
with front power door lock
switches. Press a power
door lock switch to lock
or unlock all doors.
The rear doors do not have power door lock switches.
Use the manual lock levers to lock or unlock each
rear door.
Programmable Automatic Power
Door Locks
Programmable automatic power door locks are intended
to provide enhanced security and convenience by
automatically locking and unlocking doors. This feature
provides four operating modes.Programmable Modes
Your vehicle can be programmed to one of the
following modes.
Mode 1: No automatic door lock or unlock.
Mode 2:

Automatic all
-door lock when the transaxle is
shifted out of PARK (P); no automatic door unlock.

Automatic door relock when any door is unlocked,
opened and then all doors are again closed while the
vehicle is not in PARK (P) or NEUTRAL (N) and
the driver's foot is on the brake pedal.
Mode 3:

Automatic all
-door lock when the transaxle is shifted
out of PARK (P).

Automatic all
-door unlock when the transaxle is
shifted into PARK (P).

Automatic door relock when any door is unlocked,
opened and then all doors are again closed while the
vehicle is not in PARK (P) or NEUTRAL (N) and
the driver's foot is on the brake pedal.

2-8
Mode 4:

Automatic all
-door lock when the transaxle is
shifted out of PARK (P).

Automatic driver's door only unlock when the
transaxle is shifted into PARK (P).

Automatic door relock when any door is unlocked,
opened and then all doors are again closed while the
vehicle is not in PARK (P) or NEUTRAL (N) and
the driver's foot is on the brake pedal.
Before your vehicle was shipped from the factory, it was
programmed to Mode 3. The mode to which your
vehicle was programmed may have been changed since
it left the factory. To determine the programmable mode
to which your vehicle is programmed or to program
your vehicle to a different mode, do the following:
1. Turn the ignition key to RUN.
2. Close all of the doors.3. Apply your regular brakes.
4. Press and hold the power door lock switch in the
lock position. While holding the door lock switch
in the lock position, move the shift lever out of and
back into PARK (P).
After an initial transaxle cycle, each additional cycle
will advance the operating mode by one, starting from
the current operating mode. During this procedure, the
automatic door lock and unlock functions will operate
as defined by each mode listed previously, providing
the driver with feedback of the current operating mode.
If cycled beyond Mode 4, the vehicle will enter
operating Mode 1. When the door lock switch is
released, the vehicle will remain in the most recent
operating mode.
Disconnecting the vehicle's battery for up to a year will
not change the programmed mode for the programmable
automatic power door locks.

2-14
Delayed Locking
Delayed locking allows the doors to be locked while
passengers are exiting the vehicle. This feature also
allows for you to re
-enter the vehicle after the doors
have been closed and locked. Delayed locking is user
programmable for enabling or disabling the feature.
Delayed locking is activated when a door lock switch is
pressed while the key is not in the vehicle's ignition, and
a door is open. The door lock switch may be either the
lock switch on the door or on the remote keyless entry
transmitter (see ªRemote Keyless Entryº earlier in this
section for more details). The doors do not lock when
the lock switch is pressed, but instead, three chimes are
heard. These chimes indicate that the delayed locking
feature has been activated.
You have three actions possible once delayed locking
is activated:

Cancel the delayed locking by pressing the unlock
switch or by fully inserting the key in the ignition.

Override the delayed locking feature and lock the
doors immediately by pressing the lock switch a
second time.

Let the delayed locking feature complete the locking
of the vehicle.If you wish to let the delayed locking feature complete
the locking of the vehicle, no additional action is
required. The delayed locking feature will lock the doors
automatically after all the doors have been closed for a
period of five seconds. During this five second period,
any door may be reopened, at which time the three
possible actions shown above are again available.
You may also customize your vehicle to activate the
delayed locking feature as described previously, or you
may choose to completely disable the feature at all
times. If disabled, the power door locks will activate
immediately when a power door lock switch is pressed.
The enabled/disabled state of the delayed locking
feature will be toggled when you perform the
following sequence:
1. Close the doors.
2. The ignition key should be in RUN.
3. Apply your regular brakes.
4. Press and hold the power door unlock switch. While
holding the door unlock switch, move the shift lever
out of and back into PARK (P).
After an initial transaxle cycle, each additional cycle
will toggle the enable/disable state of the delayed
locking feature.

2-24
New Vehicle ªBreak-Inº
NOTICE:
Your vehicle doesn't need an elaborate
ªbreak
-in.º But it will perform better in
the long run if you follow these guidelines:

Don't drive at any one speed -- fast or
slow
-- for the first 500 miles (805 km).
Don't make full
-throttle starts.

Avoid making hard stops for the first
200 miles (322 km) or so. During this time
your new brake linings aren't yet broken
in. Hard stops with new linings can mean
premature wear and earlier replacement.
Follow this breaking
-in guideline every
time you get new brake linings.

Don't tow a trailer during break
-in.
See ªTowing a Trailerº in the Index for
more information.
Ignition Positions
With the ignition key in the ignition, you can turn the
key to five different positions:
A (ACCESSORY): This position lets you use the
radio and windshield wipers when the engine is off. To
use ACCESSORY, push in the key and turn it toward
you. Your steering wheel will stay locked.

2-29
There are several different positions for your shift lever.
PARK (P): This position locks your front wheels. It's
the best position to use when you start your engine
because your vehicle can't move easily.
CAUTION:
It is dangerous to get out of your vehicle if the
shift lever is not fully in PARK (P) with the
parking brake firmly set. Your vehicle can roll.
Don't leave your vehicle when the engine is
running unless you have to. If you have left the
engine running, the vehicle can move suddenly.
You or others could be injured. To be sure your
vehicle won't move, even when you're on fairly
level ground, always set your parking brake and
move the shift lever to PARK (P).
See ªShifting Into PARK (P)º in the Index.
If you're pulling a trailer, see ªTowing a Trailerº
in the Index.
Make sure the shift lever is fully in PARK (P) before
starting the engine. Your vehicle has an automatic
transaxle shift lock control system. You must fully apply
your regular brakes before you can shift from PARK (P)
when the ignition is in RUN. If you cannot shift out of
PARK (P), ease pressure on the shift lever by pushing it
all the way into PARK (P) while keeping the brake pedal
pushed down. Release the shift lever button. Then move
the shift lever out of PARK (P). See ªShifting Out of
PARK (P)º in the Index.
REVERSE (R): Use this gear to back up.
NOTICE:
Shifting to REVERSE (R) while your vehicle is
moving forward could damage your transaxle.
Shift to REVERSE (R) only after your vehicle
is stopped.
To rock your vehicle back and forth to get out of snow,
ice or sand without damaging your transaxle, see ªIf
You're Stuck: In Sand, Mud, Ice or Snowº in the Index.

2-30
NEUTRAL (N): In this position, your engine
doesn't connect with the wheels. To restart when you're
already moving, use NEUTRAL (N) only. Also, use
NEUTRAL (N) when your vehicle is being towed.
CAUTION:
Shifting out of PARK (P) or NEUTRAL (N) while
your engine is ªracingº (running at high speed) is
dangerous. Unless your foot is firmly on the
brake pedal, your vehicle could move very
rapidly. You could lose control and hit people
or objects. Don't shift out of PARK (P) or
NEUTRAL (N) while your engine is racing.
NOTICE:
Damage to your transaxle caused by shifting out
of PARK (P) or NEUTRAL (N) with the engine
racing isn't covered by your warranty.
AUTOMATIC OVERDRIVE (
): This position is
for normal driving. If you need more power for passing,
and you're:

Going less than 35 mph (55 km/h), push your
accelerator pedal about halfway down.

Going about 35 mph (55 km/h) or more, push the
accelerator pedal all the way down.
You'll shift down to the next gear and have more power.
NOTICE:
If your vehicle seems to start up rather slowly, or
if it seems not to shift gears as you go faster,
something may be wrong with a transaxle
system sensor. If you drive very far that way,
your vehicle can be damaged. So, if this happens,
have your vehicle serviced right away. Until then,
you can use SECOND (2) when you are driving
less than 35 mph (55 km/h) and AUTOMATIC
OVERDRIVE (
) for higher speeds.
THIRD (3): This position is also used for normal
driving, but it offers more power and lower fuel
economy than AUTOMATIC OVERDRIVE (
).

2-31
Here are some times you might choose THIRD (3)
instead of AUTOMATIC OVERDRIVE (
):

When driving on hilly, winding roads.

When towing a trailer, so there is less shifting
between gears.

When going down a steep hill.

When driving in no
-highway scenarios (i.e. city
streets, etc.)
SECOND (2): This position gives you more power but
lower fuel economy. You can use SECOND (2) on hills.
It can help control your speed as you go down steep
mountain roads, but then you would also want to use
your brakes off and on.
NOTICE:
Don't drive in SECOND (2) for more than
25 miles (40 km), or at speeds over 55 mph
(90 km/h), or you can damage your transaxle.
Use AUTOMATIC OVERDRIVE (
) or
THIRD (3) as much as possible.
Don't shift into SECOND (2) unless you are
going slower than 65 mph (105 km/h), or you
can damage your engine.
FIRST (1): This position gives you even more power
(but lower fuel economy) than SECOND (2). You can
use it on very steep hills, or in deep snow or mud. If the
shift lever is put in FIRST (1), the transaxle won't shift
into first gear until the vehicle is going slowly enough.
NOTICE:
If your front wheels can't rotate, don't try to
drive. This might happen if you were stuck in
very deep sand or mud or were up against a
solid object. You could damage your transaxle.
Also, if you stop when going uphill, don't hold
your vehicle there with only the accelerator
pedal. This could overheat and damage the
transaxle. Use your brakes or shift into PARK (P)
to hold your vehicle in position on a hill.

2-32
Parking Brake
To set the parking brake,
hold the regular brake pedal
down with your right foot.
Push down the parking
brake pedal with your
left foot.
To release the parking brake, hold the regular brake
pedal down with your right foot and push the parking
brake pedal with your left foot. When you lift your left
foot, the parking brake pedal will follow it to the
released position.A warning chime will sound if the parking brake is set,
the ignition is on and the shift lever is not in PARK (P)
or NEUTRAL (N).
NOTICE:
Driving with the parking brake on can cause
your rear brakes to overheat. You may have to
replace them, and you could also damage other
parts of your vehicle.
If you are towing a trailer and parking on any hill, see
ªTowing a Trailerº in the Index. That section shows
what to do first to keep the trailer from moving.