Despite doing so much, most of us forget the serpentine belt even exists — let alone that its tension matters. But it does. A lot. Too tight and it'll grind bearings to dust.

Editor’s note: This Car Seat Check was written in May 2021 about the 2021 Subaru Forester. Little of substance has changed with this year’s model. See what’s new for 2022 or check out a side ...