Ford 2006 Expedition Owner's Manual page 584

Seating and Safety Restraints
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. In addition, all
safety belts should be checked for proper function. Failure to replace
the belt and retractor assembly could increase the risk of injury in
collisions.
Safety belt pretensioner
Your vehicle is equipped with safety belt pretensioners at the driver and
right front passenger seating positions.
The safety belt pretensioner removes some slack from the safety belt
system at the start of a crash. The safety belt pretensioner uses the
same crash sensor system as the front airbags and optional Safety
Canopy system. When the safety belt pretensioner deploys, the lap and
shoulder belt are tightened.
When the optional Safety Canopy
activated, the safety belt pretensioners for the driver and right front
passenger seating positions will be activated when the respective seatbelt
is properly buckled.
The driver and the right front passenger safety belt system
(including retractors, buckles and height adjusters) must be
replaced if the vehicle is involved in a collision that results in
deployment of front airbags or Safety Canopy
pretensioners.
Refer to the Safety belt maintenance section in this chapter.
176
2006 Expedition (exd)
Owners Guide (post-2002-fmt)
USA (fus)
system and/or the front airbags are
and safety belt