I have an 2013 F350. When I select high beams, my low beams go out and I have no high Beams. The high beam indicator illuminates when I select high beams

 

I'll go out on a limb and just suggest you need two new headlights.

 

Check fuse #39 in the passenger compartment fuse block.

 

That is what I was hoping. Fuses are good, all other systems working normally. I find it odd that both high beams would fail at the same time.. Going to try the bulbs tomorrow, ford did not make the bulb replacement easy

 

That was the first thing that I checked, fuse is good

 

thank you for the responses. I will try the bulb replacement and post an update.

 

 

I use high beams alot. we live in a rural county and the roads are very dark.

 

 

Good News, both lamps had the high beam filament blown. It took around 45 minutes total to replace both bulbs, the removal of the grill and head lamps was simple; Again, Thanks everyone for your responses. I used The Sylvania H13 Silver Star Ultra Halogen Headlight bulbs, $51.00 for 2 bulbs.