Chevrolet 2003 Venture Owner's Manual page 179

Mode
3: Exterior Lamps Flash and Horn Sounds
When you use the remote keyless entry transmitter
to lock your vehicle, the horn will sound and your
parking lamps will flash to let you know the
command has been received.
When you use the remote keyless entry transmitter
to unlock your vehicle or operate your optional
power sliding door(s), your parking lamps will flash
to let you know the command has been received.
Mode 4: Exterior Lamps Flash and Horn Sounds
(on second LOCK press)
When you use the remote keyless entry transmitter
to lock your vehicle, your parking lamps will flash to
let you know the command has been received.
The horn will sound and your parking lamps
will flash if you press the LOCK button again within
five seconds.
When you use the remote keyless entry transmitter
to unlock your vehicle or operate your optional
power sliding door(s), your parking lamps will flash
to let you know the command has been received.
Before your vehicle was shipped from the factory, it was
programmed in Mode 4. The mode to which the
vehicle was programmed may have been changed since
it left the factory. To determine the mode to which
your vehicle is programmed or to program your vehicle
to a different mode, do the following:
1. Follow the instructions for Entering Programming
Mode on page 2-63.
2. Press LOCK on the remote keyless entry
transmitter.
3. Count the number of chimes you hear. The number
of chimes indicates the vehicle's current
programmed mode. (If you do not wish to change
the current mode, you can either exit the
programming mode by following the instructions
later in this section or program the next feature
available on your vehicle.)
4. Press LOCK to change the current mode.
5. Press LOCK until you hear the number of chimes
corresponding to the mode selection you want.
The mode you selected is now set. You can either exit
the programming mode by following the instructions
later in this section or program the next feature available
on your vehicle.
2-68