1999 Nissan Frontier Owner's Manual - Page 12

BENCH SEAT MPA0001 ARS1130 ARS1210 HEAD RESTRAINTS To raise the head restraint, pull it up. To lower, push the lock knob, then push the head restraint down. WARNING Head restraints should be adjusted properly as they may provide significant protection against injury in an accident. Do not remove them. Check the adjustment after someone else uses the seat. Adjust the top of the head restraint even with the tops of your ears. NOTE: The head restraints on the bench seat are not adjustable. SEAT ADJUSTMENT WARNING ¼ Do not use a child restraint in the center position of the front bench seat. This position is not suitable for child restraint installation. ¼ Do not adjust the bench seat while driving. The seat may move suddenly and could cause loss of control of the vehicle. ¼ After adjustment, gently rock in the seat to make sure it is securely locked. 1-6 Seats, restraints and supplemental air bag systems