This is my first time here. I also had a problem with my ES300 with my spare key stuck in the ignition. I followed your advise but also added oil lubrication and the key eventually got loose and came off. I did a soft tap, oiled the cylinder, wiggled the keys and repeated this process until it got loose.
I'd like to help this forum also by adding some tricks I've learned. If you used the spare key and it got stuck, and the car won't start, take the primary key (the one with the remote), put it close against the ignition key and start the car. Apparently, Lexus keys have security device that will only allow the primary keys to start the car. Hope this could help someone.
