Ford 2003 Explorer Owner's Manual page 73

Energy Management Feature
• This vehicle has a safety belt system with an energy management
feature at the front seating positions to help further reduce the risk of
injury in the event of a head-on collision.
• The front outboard safety belt system has a retractor assembly that is
designed to extend the seat belt webbing in a controlled manner. This
helps reduce the belt force acting on the user's chest.
BELT AND RETRACTOR ASSEMBLY MUST BE REPLACED if
the safety belt assembly automatic locking retractor feature or
any other safety belt function is not operating properly when checked
according to the procedures in Workshop Manual. Failure to replace
the Belt and Retractor assembly could increase the risk of injury in
collisions.
Vehicle sensitive mode
This is the normal retractor mode, which allows free shoulder belt length
adjustment to your movements and locking in response to vehicle
movement. For example, if the driver brakes suddenly or turns a corner
sharply, or the vehicle receives an impact of approximately 8 km/h (5
mph) or more, the combination safety belts will lock to help reduce
forward movement of the driver and passengers.
Automatic locking mode
How to use the automatic locking mode
• Buckle the combination lap and
shoulder belt.
Seating and Safety Restraints
73