The warranty is long and good. (your owners manual should tell you)
My radio volume doesn't seem to go up and down as I drive. I wonder if it is a crappy design or mine needs fixing(too).
I don't think the tires are covered under warranty but you might see what they can do? Perhaps they are out of balance? You might want to shop for quieter tires and sell the ones on there to recoup the expense of the new ones.
My transmission shifts a tad late. Sounds like yours is more than that.... have them check out the tranny.
Call Lincoln... once you're setup in their system they will come and pick up your MKC and leave you with a loaner and "fix" yours and bring it back to you. I put fix in quotes because they don't always fix it the first time.
2017 Burgundy MKC AWD Reserve 2.3L 20" rims, Tech Package, Climate Package,