It's a common problem with them, my '07 came new from the dealer like that. Fix was to swap the screws as has been suggested, although by now that switch may have been buggered up internally by 6 years worth of attempting to engage it.
"How rare that we can point ourselves inevitably west and go, go, go. Run out the highway and the hills. Slide our fingertips over the creases and the valleys of the impossibility that is America. You canít grasp its vastness from a plane. Itís diversity from a map. You have to put your feet on the ground. Your hands in the dirt." - Zach Bowman
My SmugMug galleries (copy & paste)---> https://meefzah.smugmug.com/