The non remote key (Transponder) should still work, unless it got erased when whomever programmed the new remote key.

To program another put the working remote key into ignition turn to on (leave on for at least one second) no longer than 10 and remove key.

Within 20 seconds put new key in and switch to ignition for a least one second and off again.

The PATS LED on dash should illuminate for 3 seconds to indicate key has been programmed successfully.

Martin