Headrest
The driver's and front passenger's seats are equipped with a headrest for the occupant's safety and comfort.
The headrest not only provides comfort for the driver and front passenger, but also helps to protect the head and neck in the event of a collision.
WARNING:
o For maximum effectiveness in case of an accident, the headrest should be adjusted so the middle of the headrest is at the same height as the center of gravity of an occupant's head. Generally, the center of gravity of most people's head is similar with the height of the top of their eyes. Also, adjust the headrest as close to your head as possible. For this reason, the use of a cushion that holds the body away from the seatback is not recommended.
o Do not operate the vehicle with the headrests removed as severe injury to the occupants may occur in the event of an accident. Headrests may provide protection against neck injuries when properly adjusted.
o Do not adjust the headrest position of the driver's seat while the vehicle is in motion.
See also:
Turn signals and lane change signals
The ignition switch must be on for the turn signals to function. To turn on the
turn signals, move the lever up or down (A). Green arrow indicators on the instrument
panel indicate which turn si ...
SAFETY
The 2011 Sonata has been named a Top Safety Pick by the Insurance Institute
for Highway Safety. To earn this safety nod, a car must receive the top score of
Good in front-, side-impact, rear and r ...
Engine oil and filter
The engine oil and filter should be changed at the intervals specified in the
maintenance schedule. If the car is being driven in severe conditions, more frequent
oil and filter changes are requir ...