The door ajar light stays on all the time. I tried to push in on the doors, but nothing works. Please help me John M

its a bad door ajar switch. which one? you would need a scan tool. but the drivers door does get used more.....

It can be issue with faulty sensor or a wiring issue.Troubleshooting is required.
Click the help link shown below:---
Door Ajar Light and Dome Light Remains ON? http://whoisbyme.blogspot.in/2012/06/2003-mercury-sable-door-ajar-light-and.html
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Door ajar light stays on? http://technoanswers.blogspot.com/2012/01/door-ajar-light-stays-on.html

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Thanks.

The door ajar switch is located inside the rear door face along with the latch. They can tend to get dirty and sticky over time. Using your favorite petroleum based lubricating spray, shoot it directly into the door latch area, being very liberal. Open and close your doors several times to make sure the switch is working freely. You should do this one door at a time so you can diagnose which door is causing the issue in case it resurfaces. Should be good to go.

Good luck.

the same thing happened to my car (2004 impala ss) yesterday aug 23, 2010 in the afternoon..... al palicz 732-904-3663

Hi,
This seems that either of the door switches is/are faulty. Try pushing the switches fully on each plunger switch on each door individually, keeping the other doors closed while you do. See if one of them causes the light to go out. If you do find one turns the light off, it's an adjustment problem with the plunger switch. May still need to be replaced if it won't depress enough with the door closing to turn off.Let us know if you were looking for something more else please accept the suggestion.
Thank You for contacting Fixya.com

one of the switches is stuck in the door latch try spraying the door latches with lots of good penatrating oil (not wd 40 ) slam the doors sevral times till the light gos out dont forget the rear door now you can take it to the dealer and they can tell you witch door it is causing this problem but they want $$$$$ now also the switch is replaceable but iy is a lot of work dont woory about the lights killing the battery as they will turn off in 5 to 10 min

A door switch may not be working though. Try pushing each door inward while shut. If one door then turns off the lights, either glue a small spacer to the door where the switch button strikes (to push the switch further) or replace the switch itself. Good luck!

Find the lamp push button on each door.
Open one door, and only one door (or tailgate).
Push the lamp button IN at that door. If light goes out, then that particular push switch needs adjustment or replacement.
Cl;ose door and open another door. Push button IN.
Keep doing this until you find faulty door push button.

Which door was it?

You have a wiring harness problem
Take it to the dealer directly.......

Have you check the door ajar switch in each door?