ok to start my day I when I try to turn my car on a sc 300 1993 model the key broke the plastic and how do the sack half the key I try to turn on the car but the cylinder does not rotate to any side and I can not boot my car someone had the same problem could help

Try turning the key while rotating the steering wheel slightly left and right to see if the if the wheel lock is activated. That is the only thing I can think of other than what is mentioned above. Is your key bent? Try a local locksmith to get another key made if you do not have a spare.

uhhhhhh
cant really comprehend what you are saying.
but gonna take a guess and you have what is called wheel lock
rotate your steering wheel while you try to turn the key. youll eventually get the key to rotate.

and damnnnnn Obama letting to many people in who cant speak English!

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All due respect for your helpful mechanical contributions to this forum BUT.....

That was a pretty awful display of grammar and punctuation for someone making a case against someone else's english or immigration policy in general.

We are all immigrants unless one is Native American........

OK the Lexus dealer tell me I need exchange the cylinder key and this price for this job is for $570 dollar for labor and cylinder with two key but I call one guy and he have one cylinder key with two key for $57 dollar and today finish in my job at 4pm and take my car and removal of shifter and center console, radio and a/c and driver side dash and removed the old cylinder and installed the new cylinder key and ready my car start now thanks for your help and experience all people in this forum