Corolla / Matrix 2009-13 :: Automatic Door Locks

i have an 09 corolla s auto.i wanted to change it so it would not unlock when you put it into park. i read the manual Page 42. it says to

step 1: turn key to on position (engine off)
step 2: shift the lever to p or n(for stick). and press the the lock button for approximately 5 seconds and then let go to activate or deactivate the auto locking. or if you push and hold the unlock it activates or deactivates the auto unlocking.

well they don't say to wait for the seat belt chime, when you hear the chime push and hold the lock or unlock button depending on what you want and release just prior to the end of the chime. -- they don't say this in the book, but this is the only way to get it to work.