About Checks before driving off: seat, headrest, wheel, mirrors and seatbelt: which statement is correct?
The seatbelt is only mandatory on the motorway, or at higher speeds.
The headrest may sit low, as long as it is somewhere behind your head.
The text lists the order seat, headrest, steering wheel and mirrors, and only then 'and of course you put on your seatbelt before departure' as the last step.
You only need to re-adjust seat, headrest, steering wheel and mirrors when getting into a new or unfamiliar car, not on every trip in your own car.
Explanation
trap: order reversal. Book p.209 - the text lists the order seat, headrest, steering wheel and mirrors, and only then 'and of course you put on your seatbelt before departure' as the last step