Seat belt myths — South Dakota Permit Test
Seat belt myths on the South Dakota permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.
The rules
It takes less than a second to undo a seat belt, and a belt may keep you from being knocked out, so you are more likely to escape a burning or sinking car.
A driver knocked out by hitting the windshield cannot climb out of a burning car.
It takes less than a second to undo a seatbelt.
Your chances of not being killed are much better if you stay inside the vehicle; seat belts keep you from being thrown out into the path of another vehicle.
A rider thrown out of a crash often lands in the road and is hit by the next car.
Your chances of not being killed in an accident are much better if you stay inside the vehicle.
When a vehicle is struck from the side it moves sideways, and everything not fastened down, including passengers, slides toward the point of the crash, not away from it.
An unbelted rider hit from the side slides straight into the door that is caving in.
Everything in the vehicle that is not fastened down, including the passengers, will slide toward the point of crash, not away from it.
Even at 25 mph, a head-on crash has the force of pedaling a bicycle full speed into a brick wall or diving off a three-story building, and no one can brace for that.
Arms braced on the dashboard snap like sticks against the force of even a slow crash.
Even at 25 mph, the force of a head-on crash is the same as pedaling a bicycle full-speed into a brick wall or diving off a three-story building onto the sidewalk.
On the test
How does the manual answer the belief that seat belts can trap you in a car?
A belt takes less than a second to undo. A driver knocked out by hitting the windshield cannot climb out of a burning car. South Dakota Driver License Manual, p.28: “It takes less than a second to undo a seatbelt.”
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
What it costs
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All South Dakota permit topics
Where these come from
Every rule here is checked against South Dakota Driver License Manual, published by the South Dakota Department of Public Safety, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/SD.pdf (South Dakota Driver License Manual, Revised 11/2024, South Dakota Department of Public Safety, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD.pages.txt (pdftotext -layout, the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD-exam.html (South Dakota Department of Public Safety, South Dakota Driver License Testing Information, KB0043731, read 2026-10-04; states the 80% rate; sha256 pinned under examSource)
- https://www.sd.gov/dps?id=cs_kb_article_view&sysparm_article=KB0043733 (read 2026-10-04; links the manual)