Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.
YOu will need to do this relearn.
Turn the key on, with the engine OFF.Try to start the engine, then release the key to ON, Engine will not start. Watch the security telltale, after about 10 mins, it will turn OFF. Turn OFF the ignition, and wait 5 seconds. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes. You must turn the ignition OFF before attempting to start the vehicle. Start the engine .
The key not turning is only the tumblers, did you key the new cylinder and stake the cover on the top of the cylinder prior to installing it?
OK then there is a problem with the new cylinder.
To let you know there is nothing electronic that prevents the key fron turning on.
If the key cylinder is seated fully and the key does not turn it then it is nothing else but a bad cylinder.
just because it is new does not mean it is with out faults.
But that was where it was not interacting with the switch inside the housing.
IS the cable loose then in the back?
You will need to drill a hole in the housing to press the button to get it out now.
yes, unless it is turning, you need drill a hole.
Drill a 9/32 hole as indicated.
Nope, but a small hole in that place will not damage the assembly, only allow you to remove it and start over.