Pass-code

That car is equipped with the pass-lock system. Changing the key cylinder will not repair it if the security system is the problem. The normal failure is the actual sensor in the housing. The key cylinder only has a magnet that passes the sensor.
To repair it you need to change the actual lock cylinder housing (easier way is to get a different column from a vehicle that ran) then re-program the security module to accept the new coding. You also need the dealers access to get the programming software to access the security section of the PCM.

You are welcome. Sorry it is not better news. That system has been an issue from day one. The earlier passkey systems and later transponder units had easy to replace parts. The pass-lock system though, they decided to make the sensor part of the housing. Was not a good idea, especially with the failure rate they have.