How do i program my python 4203p to lock while the remote start is engaged?

SOURCE: one of my remotes will no longer operate my Python

This is a common problem on these and the equivalent viper models. We sent all our units back to viper and they have now re-released the units. We had installed these units into customers vehicles and about 50% had the same issue your having. Even after they were reprogrammed, many returned with the problem again. My advice is to contact python and have the unit replaced.

SOURCE: The remotes for my system do not operate when I

The "pair" the remote with your system:

1.PRESS AND HOLD the f button on the remote UNTIL the transmit LED lights solid (approximately 10 seconds)
2.PRESS AND HOLD the remote start button (circle arrow) UNTIL the LED blinks 3 times and the amber transmit LED lights up. Your remote is now ready to pair.
3.. Turn the key to the on position
4.Within 5 seconds PRESS AND RELEASE the control button on the antenna.
5. Within 5 seconds PRESS AND HOLD the control button. The status LED will flash one time and the siren will chirp to confirm that the system is ready for remote pairing.
6. Press lock button on remote. System will respond with chirp toconfirm pairing.

SOURCE: How to reprogram Python 4Button Remote 474P ?

I had the exact same thing happen with my 4-button 474p remote. WITHOUT REMOTE START the correct sequence is:

1. Enter car - Leave door open.

2. Turn key to "on" position.

3. Within 5 (five) seconds press the Valet button 7 times then hold down. (Programs to channel 7)

4. Watch alarm light - It should now flash 7 times.

5. While still holding down the Valet button - Press the "lock" button on the remote and release. Should get a "chirp"

6. Now release and repress the Valet button once, holding down. You'll get the "chirp". Release Valet button.

7. Turn key "off". Exit vehicle and test remote. All 4 buttons should now work.