2004 Ford F150 Owner Guide 5th Printing - Page 113

Seating and Safety Restraints The driver and front outboard passenger safety belt pretensioners are designed to activate only during certain frontal or near-frontal collisions with sufficient longitudinal deceleration. A safety belt buckle pretensioner is a device which tightens the webbing of the lap and shoulder belts during some collisions in such a way that they fit more snugly against the body. The driver and front outboard passenger safety belt system (including retractors, buckles and height adjusters) must be replaced if the vehicle is involved in a collision that results in the activation of the safety belt pretensioners. Refer to the Safety belt maintenance section in this chapter. Failure to replace the safety belt assembly under the above conditions could result in severe personal injuries in the event of a collision. Safety belt usage sensors The driver and front outboard passenger safety belt buckles are equipped with sensors that detect if the safety belts are fastened. The sensors provide information to the Personal Safety System which can then adapt the air bag deployment or safety belt pretensioner activation based upon safety belt usage. The Personal Safety System provides the most benefit to belted occupants. The system monitors and tailors the air bag deployment based upon safety belt usage. Failure to properly wear your safety belt will increase your risk of injury. 113 2004 F150 (f12) Owners Guide (post-2002-fmt) USA English (fus)