1997 BUICK CENTURY ECU

Rear Door Security Locks Your Buick is equipped with rear door security locks that
help prevent passengers
from opening the rear doors of
your vehicle from the inside. To use one of these locks:
1. Open one of the rear doors.
2. On the inside of the rear door will be a lock. Insert
your key into this lock and rotate it upward. This will
engage the safety lock.
3. Close the door.
4. Do the same thing to the other rear door lock.
The rear doors
of your vehicle cannot be opened from
the inside when this feature is in
use. If you want to
open the rear door when the security lock is on, unlock
the door from the inside and then open the door from
the outside.
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Automatic Power Door Locks
Programmable Automatic Power Door Locks is a
standard feature that is intended to provide enhanced
security and convenience by automatically locking and
unlocking doors. This feature provides four operating
modes. For your vehicle, you may select and program
one of the following four operating modes:
Mode 1: No automatic door lock or unlock.
Mode 2: Automatic all-door lock when the transmission
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 transmission
is shifted out of PARK (P).
Automatic all-door unlock when the transmission
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.
Mode 4: Automatic all-door lock when the transmission
is shifted out of PARK (P).
Automatic driver’s door only unlock when the
transmission 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.
The operating mode of the Programmable Automatic
Power Door Locks will be changed when the driver
performs the following sequence with the doors closed
and the ignition key in the RUN position:
Press and hold the power door lock switch. While
holding the door lock switch, cycle
the transmission out
of and back into PARK (P). After an initial transmission
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
above, 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.
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Security Feedback
Security Feedback provides audible and/or visible
feedback that a remote keyless entry lock or unlock
command has been received and executed. Your
vehicle’s ignition must be off for this feature to work.
You may select one of four operating modes for
reception
of a lock command. You may also select one
of four operating modes for reception of an unlock
command. The selection and programming of the lock
and unlock operating modes are independent of each
other. The following modes are available for either lock
or unlock verification:
Mode
1 : No Verification
Mode
2: Horn Chirp only
Mode
3: Headlamp Flash only
Mode
4: Horn Chirp and Headlamp Flash
The operating mode
of the Security Feedback lock
function will be changed when you perform the following
sequence with your vehicle’s doors closed and the ignition
key in
RUN:
Press and hold the power’door lock switch. While
holding the door lock switch, press and release the
remote keyless entry
(RKE) transmitter lock switch.
This will initialize the customization mode. While in the customization
mode, the chime will sound the number
of chimes corresponding to the current Security
Feedback lock mode. Each additional press of the
RKE
transmitter lock switch will cause your vehicle to
advance the lock mode by one, starting from the current
Security Feedback lock mode. If cycled beyond lock
Mode
4, the vehicle will enter lock Mode 1. During this
procedure, the chime will sound the number
of chimes
corresponding
to the current lock mode, providing you
with feedback. When the door lock switch is released,
the vehicle will remain in the most recent lock mode.
The operating mode
of the Security Feedback unlock
function will
be changed when you perform the
following sequence with your vehicle’s doors closed and
the ignition key in
RUN:
Press and hold the power door unlock switch. While
holding the door unlock switch, press and release the
RKE
transmitter unlock switch. This will initialize the
customization mode. While in the customization mode, the
chime will sound the number
of chimes corresponding to
the current unlock mode. Each additional press of the
RKE transmitter unlock switch will cause your vehicle to
advance the unlock mode by one, starting from the current
unlock mode. If cycled beyond unlock Mode
4, the vehicle
will enter unlock Mode
1. During this procedure, the
chime will sound the number
of chimes corresponding to
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the current unlock mode, providing you with feedback.
When the door unlock switch is released, the vehicle will
remain in the most recent unlock mode.
Both the lock and unlock Security Feedback functions
will be in operating Mode
4 when the vehicle is shipped
from the factory.
Disconnecting the vehicle’s battery for up to a year will
not change the programmed mode of the lock and
unlock Security Feedback functions.
Illumination on Remote Activation
This feature provides interior illumination when a
remote keyless entry door unlock command is received
and executed by your vehicle. Your vehicle’s ignition
must be off for the Illumination on Remote Activation
feature
to work. The interior lamps will illuminate until
your vehicle’s ignition is turned to the
RUN position or
until an illumination period
of 40 seconds has elapsed. If
a door
is opened during the illumination period, the
timed illumination will be canceled, and
the interior
lamps will remain on since a door is open.
Instant Alarm
This feature allows you to activate an alarm by pressing a
switch on the remote keyless entry transmitter.
Your vehicle’s ignition must be
off for the Instant Alarm to
work. When
you press the special horn button on the remote
keyless entry transmitter, your vehicle’s headlamps will flash, the horn will
honk repeatedly, and your interior lamps
will illuminate, attracting attention if you need it. The alarm
will continue until:
1. You press the alarm button on the RKE transmitter a
second time.
2. The vehicle’s ignition is turned to the RUN position.
3. An alarm period of about two minutes has elapsed.
Matching Transmitter(s) To Your Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can be
purchased through your dealer. Remember
to bring any
remaining transmitters with you when you go
to your
dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock your
vehicle. Each vehicle can have only four transmitters
matched
to it.
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PASS-Key@ I1
Your vehicle is equipped
with the PASS-Key I1
(Personalized Automotive
Security System)
theft-deterrent system.
PASS-Key I1
is a passive
theft-deterrent system. It
works when you insert or
remove the key from
the ignition.
PASS-Key I1 uses a resistor pellet in the ignition key
that matches
a decoder in your vehicle.
When the PASS-Key I1 system senses that someone is
using the wrong key, it shuts down
the vehicle’s starter and
fuel systems. For about three minutes, the starter won’t
work and fuel won’t go to the engine.
If someone tries to
start your vehicle again or uses another
key during this
time, the vehicle will not start. This discourages someone
from randomly trying different keys with different resistor
pellets in
an attempt to make a match.
The ignition key must be clean and dry before it’s inserted
in the ignition or the engine may not start. If the engine
does not start and the SECURITY light is flashing, the key
may be dirty or wet.
Turn the ignition off. Clean and dry the
key. Wait about three minutes and
try
again. If the starter still won’t work, and the key appears
to be clean and dry, wait about three minutes and try
another ignition key. At this time, you may also want to
check the fuse (see “Fuses and Circuit Breakers’’ in the
Index). If the starter won’t work with the other key, your
vehicle needs service.
If your vehicle does start, the first
ignition key may be faulty. See your Buick dealer or a
locksmith who can service the PASS-Key
11.
If you accidentally use a key that has a damaged or
missing resistor pellet, the starter won’t work and the
SECURITY light will come on. But you don’t have to
wait three minutes before trying another ignition key.
See your Buick dealer or a locksmith who can service
the PASS-Key
I1 to have a new key made.
If you’re ever driving and SECURITY light comes on,
you will be able to restart your engine if you
turn it off.
Your PASS-Key I1 system, however, is not working
properly and must be serviced by your Buick dealer. Your
vehicle
is not protected by the PASS-Key II system.
If you lose or damage a PASS-Key
I1 ignition key, see
your Buick dealer or a locksmith who can service the
PASS-Key I1 to have a new key made.
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Change Oil Soon Light Security Light
CHANGE OIL
SOON
Your
CHANGE OIL SOON
light should come on as a
bulb check when you start
the engine. If this light stays
on for about 20 seconds
after
you turn on the
ignition, have the
oil chaneed. SECURITY
This light will come on
when
you turn the key to
START and stay on until the
vehicle starts. It will also
flash if your key
is too dirty
or wet for the PASS-Key I1
system to read the resistor
pellet. See “Pass-Key
11” in
the Index.
When to change your oil also depends
on driving habits
and conditions because they directly affect engine speed,
coolant temperature and vehicle speed. Because of this,
the
CHANGE OIL SOON light may come on as early as
2,000 miles (3,200 km) or less for harsh conditions.
Remember, after changing your engine oil, the system
must be reset; with the ignition key
in the RUN position,
but
the engine off, fully push and release the accelerator
pedal three times within five seconds.
If the CHANGE
OIL SOON light flashes two times, the system is reset.
However
if the light comes on and stays on for five
seconds,
it did not reset. You’ll need to reset the
system again. If
the resistor pellet is damaged or missing, the light will
come on.
If you’re driving and the SECURITY light comes on
and remains on, your PASS-Key I1 system is not
working properly. Your vehicle is not protected by
PASS-Key
11, and you should see your dealer.
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NOTE: If you allow more than 15 seconds to elapse
between any steps, the radio automatically reverts to
time and
you must start the procedure over at Step 4.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Write down any three or four-digit number from
000 to 1999 and keep it in a safe place separate from
the vehicle.
Turn the ignition to ACCESSORY or RUN.
Turn the radio
off.
Press the 1 and 4 buttons together. Hold them down
until
--- shows on the display. Next you will use the
secret code number which you have written down.
Press MIN and
000 will appear on the display.
Press MIN again to make the last two digits agree
with your code.
Press
HRS to make the first one or two digits agree
with your code.
Press AM-FM after you have confirmed that the
code matches the secret code
you have written down.
The display will show REP to let you know that you
need to repeat Steps
5 through 7 to confirm your
secret code.
Press AM-FM and this time the display will show
SEC to let you know that your radio is secure.
Unlocking the Theft-Deterrent Feature After a
Power Loss
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. LOC appears when the ignition is on.
2. Press MIN and 000 will appear on the display.
3. Press MIN again to make the last two digits agree
with your code.
with your code.
code matches the secret code
you have written down.
The display will show SEC, indicating the radio is
now operable and secure.
4. Press HRS to make the first one or two digits agree
5. Press AM-FM after you have confirmed that the
If you enter the wrong code eight times, INOP will
appear on the display. You will have to wait an hour
with the ignition on before you can try again. When you
try again, you will only have three more chances
(eight tries per chance)
to enter the correct code before
INOP appears.
If you lose or forget your code, contact your dealer.
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Disabling the Theft-Deterrent Feature
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition to ACCESSORY or RUN.
2. Turn the radio off.
3. Press the 1 and 4 buttons together. Hold them down
4. Press MTN and 000 will appear on the display.
5. Press MIN again to make the last two digits agree
6. Press HRS to make the first one or two digits agree
7. Press AM-FM after you have confirmed that the
until
SEC shows on the display.
with your code.
with your code.
code matches the secret code
you have written down.
The display will show
---, indicating that the radio is
no longer secured.
If the code entered is incorrect, SEC will appear on the
display. The radio will remain secured
until the correct
code is entered.
When battery power is removed and later applied to a
secured radio, the radio won’t turn
on and LOC will
appear on the display.
To unlock a secured radio see “Unlocking the
Theft-Deterrent Feature After a Power
Loss” earlier in
this section.
Audio Steering Wheel Controls
(If Equipped)
If your vehicle has this feature, you can control certain
radio functions using the buttons on your steering wheel.
SEEK: Press the up or
down arrow to tune to the
next or previous radio
station.
If a cassette tape or compact disc is playing, the player
will advance to the next or previous selection.
SCAN: Press the SCAN button and SCAN will appear
on the display. SCAN works as the PSCAN button on
your radio. It will scan through each of the preset radio
stations. If a preset radio station has weak reception, the
radio will not stop at the preset station. Press SCAN
again to stop scanning.
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