Change Active Directory Password Expiration Prompt in OS X Yosemite

I'm looking for a way to change the default Active Directory password expiration prompt at login from 30 days to our current IT policy of 14 days. Every time a user logs in on a Mac with Active Directory, they get a 30 day notice, but on a PC they get a 14 day notice, so I know it's something local to the Mac and not something controlled through the servers. I cannot for the life of me find the .plist that controls this and all other information I can find is extremely out of date. Any advice?