Get in the car, make sure that all the doors are closed, then ensure all seatbelts arenot plugged in. Switch ignition to position 2, do not start the car, plug drivers belt in and out 9 times within 60 seconds, ending with thebelt out. Car will give a beep to confirm the operation.
But this also disables the warning light too, so you willnever get reminder ever again (unless you re-activate the chime by doing above again)
Edited by: tonic-cm