Here is what I did for my Error 3, I would try ejecting nothing would happen. I disconnected the battery and nothing. What I ended up doing was removing the deck myself, because lexus wanted 125 for removing and installing the deck back. And when i disconnected it, I decided to look at it, after taking off the top plate i could see all the cd's there and nothing seemed jammed.
I was ready to take the deck in to the dealer, but I have the nav screen and the heater would not work, so after having the unit unplugged for 2 hours, when i plugged it back in it started working. The unit may have reset, I did try to put it in ship mode as well not sure if that helped. But you can try that as well.