Toyota Corolla Door Ajar Light

On My Corolla 2003, The Door Ajar Light Stays On Even After All Doors Are Closed. How Do I Fix That Without Major Dealership Expenses

I Was Recently Towing A Small Caravan Up Mount Ousley And Pressed The Overdrive Off Button To The Off Position Indicated By The Light (off)...

The Dashboard Door Ajar Light Stays On With All The Doors & The Trunk Closed.

First I Pulled Out The Door Ajar Dinger In Drivers Door Cause I Was Installing A Stereo And I Got Sick Of The Noise With The Door Open...