I have a 2012 Corolla S I purchased recently. Mechanically and physically in superb condition with the exception of one issue. The security light (immobilizer light) blinks constantly even with the vehicle running... regardless of which key I use. The light does not blink at all when the car is off FYI. I have done a lot of research on the internet... some articles have stated it is still stuck in programming mode but none of the procedures suggested actually fix the blinking security light issue. I took it to a lock smith but he was afraid if he reprogrammed it that it might not start anymore since he had never seen that issue. Is there anyone who has a concrete solution to this other than taking the car to the dealership. I refuse to pay a dealership 2 grand to fix the issue and frankly I do 100% of my car work anyways. Any suggestions as to why the car is doing this?