Quote Originally Posted by stomper View Post
When you turn the headlight switch to the "0" position the head lights don't turn off.
If it is DRLs you're referring to, they can be disabled - there's an option in the MFD for MY11 and after. (Prior to that there was a sequence using the indicator stalk to enable/disable them. Check out the manual.)

If you're talking about your full headlights (complete with tail lights, dash lights, etc), then you may have an issue with your light sensor.