To change the home destination preset
1:go to the nav settings menu
2:Should have a "home button" in that screen selecting it should bring up a set home, edit, and delete option
Select Edit
Select what you want to edit
Edit it
Done
the toyota owners website has all the manuals in pdf form. Here is the link for the Tundra and setting it is on page 233.
2016 Toyota Tundra Navigation ManualI do wholeheartedly agree with switchinlanes as to their last point. When I was selling Toyota's I always set my customers home address to a intersection at the front of their subdivision or major intersection near by.
"Note: For security reasons, use a point close to your home instead of your actual home address."