The horn sound activates when you use the fob, it just 'lightly' beeps when pressing the button on the door handle. There is a setting you can change so it doesn't honk the horn when you press the button on the fob as well. I changed it to this since I did not like it loudly honking in my garage if I used the fob, but I found the non honking alert when using the fob annoying so I changed it back on mine. The settings to change this are done thru the small screen between the tach and speedometer analog gauges.
And you said "I know that the car can be locked by hitting the little button on the door's handle twice" but mine locks by pressing the button on the door handle once. It unlocks the drivers door only if I press once, and unlocks all the doors if I press twice. But once opened, one press locks all the doors.
And you said "I know that the car can be locked by hitting the little button on the door's handle twice" but mine locks by pressing the button on the door handle once. It unlocks the drivers door only if I press once, and unlocks all the doors if I press twice. But once opened, one press locks all the doors.