I have a 99 LS 400, the only key I have for this is the 3 button master, all keys have a transponder fitted, i tried to buy a new key in Australia 7000 km away. i was told the only way they could make the transponder work on a new key was if they had the car as well as the master key. the Car is in New Guinea and there is no Lexus dealer. [the Toyota dealer asked' what is a Lexus'] can anyone help? Is there any way the transponder in new keys can be programmed without the car?
Cheers
Lobes
