My key for my wife's Lexus ('02 ES300) broke yesterday. The metal part broke away from the plastic. I could turn the metal part in the keyhole, the accessories came on, but it wouldn't start. Is there really some magic inside the plastic body required to start the engine? If there is, is it dependent on the battery? Being stuck due to a dead key battery isn't very nice.
Also, what is the "master" key referred to? A specific key or any key already programmed for the vehicle?
The pieces could be epoxied back together. Are there electrical connections inside that would interfere with this?
Thanks, Gary