2 master keys won't start car?
 

Just bought an 06 RX330. It came with 3 keys... two are original Lexus fob keys with the gold Lexus logo on the back, and 1 generic key (see picture).
The generic key is the only one that will start the car.
The original 2 perform all the button functions just fine, lock/unlock, rear liftgate, but will not start the car, it just cranks. I'm assuming it isn't communicating with the immobilizer?
I don't have the credit card key, or the key code either.
Any idea why the originals won't start the car?

https://cimg4.ibsrv.net/gimg/www.clu...de0724b0be.jpg