Door ajar light comes on, chimes & it will not go off. My doors wills not lock anymore when shifted out of park and interior ligths stay on as well.

Door ajar switch problem more then likely or wiring issue . The BCM - body control module won't turn off interior light , let door lock because it think's the door is open . The door ajar switch is a input to the BCM .

The first thing would be to have it checked for DTC'S - diagnostic trouble codes . Also check with an enhanced scan tool to see if the BCM shows ajar switch data (open or closed ? Do you know about body electronics ?
Body Control Module
The various BCM input and output circuits are described in the corresponding functional areas indicated on the BCM electrical schematics. The Body Control Module functions include the following:
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A/C compressor request. Refer to Air Temperature Description and Operation

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Remote Function Control. Refer to Keyless Entry System Description and Operation

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A/C cooling Fan. Refer to Air Delivery Description and Operation

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Audio Delay Power. Refer to Radio/Audio System Description and Operation

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Exterior and interior lighting control. Refer to Exterior Lighting Systems Description and Operation

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Daytime running lights (DRL)

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Automatic lighting control

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Fog lamps

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Interior lighting. Refer to Interior Lighting Systems Description and Operation

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Battery rundown protection (Inadvertent Power). Refer to Interior Lighting Systems Description and Operation

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Chimes. Refer to Audible Warnings Description and Operation

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Key-In-Ignition

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Head Lamps On

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Seat Belt Not Fastened

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Turn Signal On

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Park Brake Warning

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Door Ajar Warning

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Check gages

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Gage control. Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console.

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Instrument cluster indicator control. Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console.

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Theft deterrent. Refer to Theft Systems Description and Operation .

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Engine coolant level sensing. Refer to Cooling System Description and Operation .

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Washer solvent level sensing. Refer to Wiper/Washer System Description and Operation in Wipers/Washer Systems.

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Key-in-ignition sensing. Refer to Audible Warnings Description and Operation in Instrument Panel, Gages, and Console.

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Seat belt use sensing. Refer to Seat Belt System Description and Operation .

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Brake fluid level sensing.

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Parking brake state sensing.

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Rear compartment interface. Refer to Power Door Locks Description and Operation

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Horn interface.

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Door lock interface. Refer to Power Door Locks Description and Operation

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Bulb Check. Refer to Instrument Cluster Description and Operation in Instrument Panel, Gages, and Console.

You probably have a broken door switch., so the system thinks a door is open. Fairly common failure, easy and inexpensive to fix.

look for a swich in the door fram itself .replace it and make sur its getting good contact to door jam

On certain model the dimmer is also control the inside light.
MOVE the dash dimmer control dial from the extreme right to the middle position. (counter clockwise)

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Clean the metal contacts on the side sliding door.
You may find white lithium grease on the surface.......do you best to wipe these contact clean.
Do the same on the rear hatch contacts.
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Both front doors has plastic pin switches.

Check one door at a time to make sure the plastic pin switch is good condition.
Press the switch in and see does it operate smoothly.

this problem is caused by a tiny micro switch that is attached to the door latch inside the doors, the stick and give this false warning, have replaced dozens of them, it is called the "door ajar" switch oddly enough :)

sounds like one of the door switches have come loose and causing it to earth out and activate the interior lights while driving which will also activate the chime.

there is a switch in each door that senses the door is open, it is called the door ajar/courtesy light switch (imagine that), they stick and have this problem, replace it.

Your door lock module is bad. There are two ways to fix it. #1 is to replace the module. Various places online sell new ones for $160, while you can get them used for around $50. #2 is to replace the switch, which costs around $3-9, but then you have to remove the door lock module, remove the old switch, and mount/solder the new one in. You can also pull the door lock module and cut the wires going to the switch which will tell the door that it's always shut, and it will stop your dinging. That one's free, assuming you can get to the DLM.

there should be a switch mounted( or more than one) in the door jamb that tells the car when the car door is open...i will probably look like a little plastic plunger...might be broken off or bad internally