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For U.S.A.
The following information has been compiled according to Code of Federal Regulations “Title 49, Part 575”. ...

Acc
In this position the electrical accessories (radio, accessory power outlet, etc.) can be used. ...

Rear center seating position
CAUTION The head restraint is not intended to be used at the lowest position. Before sitting on the seat, raise the head restraint to the extended position. A) When not used (retracted position) ...