Question Why is it important to adjust your headrest before driving? Answers Headrests can prevent whiplash. Headrests provide maximum comfort. Headrests can block your rearview mirror if not adjusted properly. It is not important. Explanation Headrests protect vehicle occupants from whiplash. Adjusting your headrest is an important step to take before driving. Take a FREE Practice Test Now This questions appears in the following tests: Louisiana Practice Test