To make a key you MUST have the keycode.
In the past this was available from any one of:
1
Can be read from any working key for that Segway
2
It was on the original paperwork that accompanied the Segway.
3
Segway the company could provide it based upon the serial number ( I don't think is possible any longer ).
4
As a past dealer, we kept records of the Segway PTs we sold ( here in Australia ).
We still have our records.
Other dealers and ex-dealers may also.
IF you have the KEYCODE there's a number of technical steps to create a key.
I can assist you, and others can too.
Let me know if I can assist further.
Michael
www.dgbint.com