Ignition Lock Up

What is your question?

I'm trying to replace my ignition cylinder in my 95 4runner and I know the steps in doing it but I have Run into a problem. My repair book tells me to have my key in the ACC position, only problem Is that my key won't turn out of Lock. I push the pin in but the cylinder won't slide out. How will I Be able to get the cylinder out if I can't turn my key?