Your dome light is staying on because a doem light switch on one of the latches is sticking. Try this simple fix and see if the dome light turns off. Take a can of PB Blaster or WD-40 and spray it into the latch. A good bit of it. Then open and close the door several times. Up to 20. Do this to all the doors and the rear hatch and see if the light goes out. Most of the time it is the drivers door since it gets used the most. Dirt and sand get caught in the switch causing it to stick.