Buick 2003 Century Owner's Manual page 77

Programmable Modes
Your vehicle can be programmed to one of the
following modes.
Mode 1: No Verification
Mode
2 :
Horn Chirp only
Mode
3:
Headlamps Flash only
Mode 4: Horn Chirp and Headlamps Flash
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 which security feedback
lock mode your vehicle is programmed to or to
program your vehicle to a different mode, do the
following:
1. Close all doors and turn the ignition key to RUN.
2. Press and hold the power door lock switch in
3. While holding the door lock switch in the lock
the lock position.
position, press and release the remote
keyless entry transmitter LOCK button.
This will start the customization mode. While in
the customization mode, the feature will
sound the number of chimes corresponding to the
current lock mode. If you do not wish to
change the current mode, you can either exit the
programming mode by following the instructions
listed here or program the next feature
available on your vehicle.
4. Each additional press of the remote keyless entry
transmitter LOCK button will cause your vehicle to
advance the lock mode by one, starting from
the current lock mode.
5. If cycled beyond Mode 4, the vehicle will enter
Mode 1. When the door lock switch is released,
the vehicle will remain in the most recent lock mode.
The mode you selected is now set. You can either exit
the programming mode by following the previous
instructions or program the next feature available on
your vehicle.
Disconnecting the vehicle's battery for up to a year will
not change the programmed mode for the lock and
unlock security feedback features.
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