When I got my single button flip key 3 years ago it was $150 and a flat key ~ $35. The flat key looks like a standard metal key with a clipped head and a chip that works with DAS X. To start the car the key does not need programmed, there is a record of what keys have been issued to that car in the past.

The general description is each car has 8 tracks , ( I'll call them 1 through 8 ) and 3 possible keys for each track ( I'll call them A through C ) If you lose key 1A and want to replace it, you will get key 1B. Using this key automatically disables key 1A though the mechanical portion will still work.

Programming the IR remote consists of standing outside the car, pressing the remote button 2 X then inserting the turning the key to the run position. Also, you can test the remotes battery strength by holding the button down and looking for the red light on the key to flash.

As a side note, other manufacturers have key programming capability. Fords with a PATS system require 2 valid keys to program a new key. Insert one, turn to run, remove, insert second turn to run, remove, insert new key turn to run. Sometimes the Theft light will flash or horn beep. This key is now valid. If only one key or none are to be found, all keys get wiped by a programmer and new keys added. This can take an hour or so as there is a time delay to prevent plugging in a programmer and driving away.