Program Key (Locking/Unlocking)

[houstonfan01]

My 2009 135i key doesn't locks/unlocks the car doors. I can start the car with it but can't unlock the doors with the remote. Does anyone knows how to program this feature into the key?

[aacabriolet]

Doesnt sound right. I'd take it to the dealer and have them check it out.

[Augenbrauezug]

Did this just go out or did you not check to be sure you could lock the car with your key before you bought it?

[DriveHard]

If you have comfort access, there is a replaceable battery in the fob... battery available at any place that sells watch batteries

If you dont have C/A... then get in the car, close door.. stick fob in key holder slot and push it in all the way and HOLD it in for a few moments...

this re-programs the fob to the car.. then eject it and try the locks..

have you tried your other key ???? if the above procedure does not work then you need a new fob which is covered under warranty

goodluck..