You are correct in some respects to the FOB programming .It works in(3) 10 min. segments(approx.30 min.).very easy to follow. If you want a new key , go to a lock smith with a lazer cutter....i got one cut for 40 dollars....and new FOBs with the guts vary in price ,from a wide choice of on/off line vendors.(usually about 30-50 dollars). The reason you need to buy a new fob is because the battery is spot welded to the support band,(I WONDER WHAT GENIUS THOUGHT OF THAT) that is a mother to separate.I have done this sucessfully...but have killed a few.THE fob REQUIRES A COMMON WAFFER BATTERY(2032),and you can transfer the key part from FOB to FOB. Hope this helps.