2003 Nissan Xterra Owner's Manual - Page 24

● Work around and on the pre-tensioner system should be done by a NISSAN dealer. Installation of electrical equipment should also be done by a NISSAN dealer. Unauthorized electrical test equipment and probing devices should not be used on the pre-tensioner seat belt system. ● If you need to dispose of the pretensioner or scrap the vehicle, contact a NISSAN dealer. Correct pre-tensioner disposal procedures are set forth in the appropriate NISSAN Service Manual. Incorrect disposal procedures could cause personal injury. The front seat pre-tensioner seat belt system activates in conjunction with the supplemental front air bag. Working with the seat belt retractor, it helps tighten the seat belt the instant the vehicle becomes involved in certain types of collisions, thereby restraining seat occupants. The pre-tensioner is encased with the seat belt's retractor. These seat belts are used the same as conventional seat belts. When the pre-tensioner seat belt activates, smoke is released and a loud noise may be heard. This smoke is not harmful and does not indicate a fire. Care should be taken not to inhale it, as it may cause irritation and choking. Those with a history of a breathing condition should get fresh air promptly. If any abnormality occurs in the pre-tensioner system, the supplemental air bag warning will flash intermittently after the ignilight tion key is turned to the ON or START position. In this case, the pre-tensioner seat belt will not function properly. They must be checked and repaired. Take your vehicle to the nearest NISSAN dealer. When selling your vehicle, we request that you inform the buyer about the pre-tensioner seat belt system and guide the buyer to the appropriate sections in this Owner's Manual. 1-18 Seats, restraints and supplemental air bag systems