When preparing to change lanes, besides checking your mirrors, you should:
Checking behind you is crucial when changing lanes to confirm that you aren’t disrupting vehicles in the lane you're moving into. It's necessary to glance over your shoulder to ascertain there are no other vehicles attempting to occupy the same space you're aiming for, providing a complete view beyond what's visible in the mirrors.
See the exact questions that will be on the 2026 South Dakota DMV exam.
99.2% of people who use the cheat sheet pass the FIRST TIME
