Howdy everyone -

Trying to do some research on my mom's 2011 Expedition. I noticed while driving it a couple of weeks ago that no matter when setting the A/C is on, it always blow some cold air out of the floor vents. There is still plenty of air coming through the dash vents, but it seems like you should be able to completely shut off the floor vents. Is this a common issue on these vehicles?

My mom has been complaining about cold feet when she is driving around in flip flops! She took it into the dealer, but they just said that the system was working properly, and there was nothing that Ford recommended for the issue.

Anyone know what is causing this, or any way to fix it?