Why should you adjust your head restraint so its top is at least level with the top of your head?
- It's more comfortable.
- It's required by law.
- It helps make driving more relaxing.
- It helps prevent whiplash. ✓
Answer: D. It helps prevent whiplash.
Adjust the head restraint so its top is at least level with the top of your head because it helps prevent whiplash.
Why this is the answer
The handbook says that if your vehicle has head restraints, you should adjust them to fit correctly. It explains that placing the top of the restraint at least as high as the top of your head, and keeping it less than 10 cm from the back of your head, helps prevent neck injuries. It also says correct adjustment reduces the risk of neck and back injuries in a rear-end crash. Those neck injuries are the whiplash-type harm the answer refers to.
Why the other answers are wrong
- A. It's more comfortable. — Comfort is not the reason given; the handbook links correct head restraint adjustment to lowering injury risk.
- B. It's required by law. — The handbook presents this as a safety adjustment, not as a legal requirement for this exact setting.
- C. It helps make driving more relaxing. — Making driving more relaxing is not the stated purpose; the purpose is reducing neck and back injury risk in a rear-end crash.
Remember it
Remember the two checks: top of the restraint level with the top of your head, and the restraint close behind your head.