your door sensor pin may be broke
Close the door!
The back hatch may be ajar.
bad door ajar switch inside one of the doors its in the striker assy
Close it hard
If the door is ajar and light stays on, spray some WD40 into the latch. The door switch is probably stuck. Spray all doors then open and close a few times.
There is no past tense of ajar. Perhaps you can add 'was' before ajar?
Ajar AJar
The best way to phrase it would be to place "was" directly before ajar Example: "The door was ajar, Then I shut it."
Open and close all the doors, slamming them hard to close them. If you are absolutely sure there are none open, have your car repaired.
Ajar is the term for a door that is slightly open.
Ajar means "slightly turned or opened", such as of a door.
she left the door ajar