Question 6174
For the head restraint to be adjusted correctly, the distance between it and the head must be...
- more than 4 cm.
- whatever is most comfortable for the driver.
- as small as possible and never more than 4 cm.
Show answer and explanation
Correct answer: as small as possible and never more than 4 cm.
As small as possible, and never more than 4 cm between the head restraint and your head. If it is too far away, your head gains speed as it moves backward before reaching it, making whiplash worse. If you cannot get it close enough, move the seatback a little more upright. In the image, the driver is moving the head restraint closer to his head.