Anyone know anything about cars?

My problem is that my car thinks one of my doors is ajar when none of them actually are.  This leads to a series of crazy things going on in my car at once 

1. The light pannel above my head turns on and off thinking a door is open then closed then open again 
2. The car keeps unlocking the doors because it thinks a door is open
3. My car keeps making a clicking sound to alert me that my door is open

u should just take it to the toyota dealer

Perhaps it's time to trade it in for a better car, such as the new 2010 Chevrolet Aveo.