2nd this. I just finished reading the manual and it has instructions on how to program new key fobs. Sounded pretty easy. Good luck!
I think RTFM is first cousin to RTFQ.
Ugh, I reread the section on page 64, "Programming a Spare Intelligent Access Key," and it doesn't look very promising for you. In order to program a spare key fob, you must have two working/programmed key fobs (the two that came with your car) inside your car along with the third fob that you wish to program to work with your vehicle... I don' think this feature is 1. going to help you or 2. very helpful... I'm sure someone somewhere wants to have three key fobs for their car, but what an odd feature... I wonder if this has anything to do with the GT350's "Race Key" option found with Forscan?
I tired your trick this morning . Yep, the car will start with the bad key if its in the slot under the rear cup holder, *BUT* the fob isn't recognized when it's in or outside the Bullitt. I'm guessing the radio stuff inside the key fob went tits up ;-( Off to a local dealer to have them look at it.
HaHa, not put through the wash or fell in the snow :-) it worked when new, but was our spare key and it hung on the wall. Worked when i left Montana but didn't when I arrived in SoCal; perhaps it was a tiny political protest...