Usually the chime sound comes from a relay box in your dash. There are two possible ways of shutting it up. 1 Disconnect the relay box. In this first case make sure that the box doesn't control anything else, or you'll have to do the other way. 2 Locate the box, disconnect it, open it, cut the wire that goes to the speaker, close the box, and put it back where it belongs.
One probably cause is that the door is slightly ajar. Another is a faulty door switch ... if the contacts aren't closing properly, leaving the circuit open with the door shut securely, the door chime will sound.
The "Door Ajar" warning means your door is not shut all the way.
If the door ajar light is coming on in your gauge cluster, and the warning chime is sounding when all your doors, liftgate, and glass hatch are securely shut you most likely have a sticking door ajar switch. The door ajar switches are inside the doors mounted on the latch mechanisms.
I've had that happen in my 2002 mountaineer. what I've found is that if you spray the door latches with wd40 it will clean off the sensors and the door ajar light should go out. but make sure all the doors are shut.
Close the door.
a door in your car is not fully shut.
The best way to phrase it would be to place "was" directly before ajar Example: "The door was ajar, Then I shut it."
The door ajar light might stay on in a Mercury Mountaineer if a door is not shut properly. Sometimes a door will seem like it is shut, but will not be shut enough to trip the light off. Check for dirt or other debris in the door latch for all doors.
Shut the door!
the door ajar light is staying on all the time
remove fuse
The system thinks that a door is not shut completely. If all of the doors are shut tight, then a door switch is loose or bad.