See also:

Armrest
To lower the armrest, pull on the top edge of the armrest. WARNING To avoid the possibility of serious injury, passengers must never be allowed to sit on the center armrest while the vehicle is ...

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) ...

If the passenger’s frontal airbag OFF indicator illuminates and the ON indicator turns off even when the front passenger’s seat is occupied by an adult
This can be caused by the adult incorrectly sitting in the front passenger’s seat. Turn the ignition switch to the “LOCK” position. Ask the front passenger to set the seatback to the upright position ...