changed ignition key cylinder. now wont start. believe a prob. with alarm system on 2000 Chrysler Sebring

after changing the cylinder the car will not run. the alarm warning light flashes while key is in the there an alarm shut down system in placxe and how do you shut is off.

Asked by for the 2000 Chrysler Sebring
You have to take it to the dealer and get relearned anytime you change any type of the cylinders or anything in today's security system the computer has to be reset by dealer. also it's into trouble cold you the fuel system in the fuel system will shut of