Chevrolet 2007 Corvette Owner's Manual page 240

Passive Door Locking: This option allows you to
select whether the doors automatically lock during
normal vehicle exit. When the ignition is turned off
and all doors become closed, the vehicle will
determine how many keyless access transmitters
remain in the vehicle interior. If at least one keyless
access transmitter has been removed from the
interior of the vehicle, the doors will lock after
eight seconds.
For example, if there are two keyless access
transmitters in the vehicle and one is removed,
the other will be locked in. The keyless access
transmitter locked in the vehicle can still be used
to start the vehicle or unlock the doors, if needed.
A person approaching the outside of the locked
vehicle without an authorized keyless access
transmitter, however, will not be able to open the
door, even with a transmitter in the vehicle.
You may temporarily disable the passive door
locking feature by pressing the door unlock switch
for three seconds on an open door. Passive door
locking will then remain disabled until a door lock
switch is pressed or until the power mode
transitions from the off power mode.
240
Press the OPTION button until PASSIVE DOOR
LOCKING appears on the display, then press the
RESET button to scroll through the following
modes:
•
OFF (default)
•
SILENT
•
HORN
If you choose OFF, this option will turn off.
If you choose SILENT, the doors will automatically
lock eight seconds after you turn the ignition off,
remove a keyless access transmitter from the
interior of the vehicle, and close both doors.
If you choose HORN, the doors will automatically
lock and the horn will chirp eight seconds after
you turn the ignition off, remove a keyless access
transmitter from the interior of the vehicle, and
close both doors.
If you are parking in a quiet area and do not want
the horn to sound when the doors lock, press
the lock button on the keyless access transmitter
immediately after removing it from the interior
and closing the doors. This will lock the doors and
cancel the passive locking for this ignition cycle.