Try shutting the door.
If the lights are on and the door is ajar it will make a steady alarm.
why does my door ajar alarm keep coming on and off while driving my car.
Each door has an ajar sensor. Disconnect it and see if it works. If it does not work, just unplug the ajar alarm, which is a small black box, from the panel to disable it.
I had this issue turned out to be one of the switches on the door. Does the dash show any door ajar lights? If so start on that door
Honda Odyssey sliding door cable repair
make sure ALL the doors are closed
this problem is related to the door ajar switch which is connected to the latch. spray wd-40 into the latch and it should go away.
If your 2002 Honda Civic alarm will not turn off, place the key in the driver's side door. Lock and unlock the door to disable the alarm.
bring it to a shop
Ajar is the term for a door that is slightly open.
The spare tired on a 2001 Honda Odyssey is behind the front seats. Look on the floor behind the front seats for a door, behind that door is the spare.
In my Honda Odyssey (2000), the door is located on the front of the navigation unit DVD unit under the passenger seat. If this door is left open, or if the door sensor pin on the door is broken, the navigation system will not function