2003 Nissan Sentra Owner's Manual - Page 11

LRS0058 WRS0133 WRS0134 When using the fold down rear seatback, the rear center seat belt retractor may lock up and prevent folding down the seatback. If the rear center seat belt retractor has inadvertently locked up, push the seat belt webbing toward the retractor as shown in the above illustration. This will unlock the seat belt retractor and allow the rear seatback to fold down. HEAD RESTRAINT ADJUSTMENT To raise the head restraint, pull it up. To lower, push and hold the lock knob and push the head restraint down. Adjust the head restraint so the center is level with the center of your ears. 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. Seats, restraints and supplemental air bag systems 1-5