2002 Q45 key won’t turn

[Gioarmani7229]

So my 2002 q45 was working fine 2 days ago. I thought my light was left on in my car but it wasn’t. I replaced the battery my stock key will not turn. When I took the blade key out and tried to start the car it worked, but car wouldn’t start because it needs the actually key fob to work. I noticed that without even the car being on the oil light was on very light and the security light was on solid. Please someone help.

 

[D Q]

Sounds like security locked you out. Look in your manual