I'm beating head against the wall with this one.
On page 26 of the manual it talks about turning off the 'Sound Horn on Lock' feature. I don't have the EVIC feature so I'm doing it via the key fob.
The steps couldn't be easier:
1 Press the LOCK button for 4 to 10 sec
2. While the LOCK button is pressed (after 4 sec) press the PANIC button, release both buttons.
If it works, then when you hit the Lock button the doors will lock but the horn should NOT chirp.
I've not been able to get this to work, anyone else had issues with this?