The sensor/switch in the doorwell probably broke off when it was closed
some how the tail light wire is touching the ajar wire
The light is turned on by a switch on each door. Check them one at a time to see which it is, and then adjust or replace it.
On my 2002 sportage 2-door, the door ajar light stays on when the tailgate is not locked. with the key.
dirty door latch clean with wd 40
If the trunk lid isn't actually ajar, the switch has gone out of alignment, or it broke.
The back hatch may be ajar.
Fix a "door ajar" on Chevy Impala 2003 . Still on doors closed.
add a couple layers of tape where the switch hits the door jamb. the tip of the switch is worn down.
Possible faulty door switch.Try contact cleaner or light grade of lubricant on the switch. Push it i nby hand and see if door ajar light goes out.
The trunk lid is open or the ajar switch has malfunctioned.The trunk lid is open or the ajar switch has malfunctioned.
It's not a question !
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.