couple of things to note about 09/09 "g" system toyotas, you need a working master key to enroll new keys, no master key start saving, toyota will charge prohibitively, (have heard of $4200.00 for a 2010 corolla to get it started) . to remove the dash and replace on some models i think 3 computers. only one different is a yaris, although i havent done one, you can get to the required connector via the passenger saftey balloon removal. and these keys cannot be cloned yet. so hang on to your keys. i supply cut and code "g" keys for $95.00, as long as there is a working master. easy way to tell if you have a master, insert key into ignition, if security light goes out immediately its a master, if it stays on for around 2 seconds then goes out its a valet key, "g" valets are useless. these rules apply to some pre 09/09 toyotas as well. bottom line, if you only have one master key, find someone to make a couple of spares. hope this helps.