the door ajar light on my dashboard wont go away as i ensured all doors locked

The doorjam switch on that door bad.

Thank you for inquiring about your warning indicator on your dashboard. This warning light lets the driver know that there is a malfunction that must be checked out. We would be happy to look at your car and to provide a diagnosis. We can be contacted by calling 215-333-3700. We will set up an appointment and give you a diagnostic quote. We look forward to hearing from you. Thank you. The Service Team at Barbera's Autoland.