Page 167 of 344

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 Safety Canopy
system. When the safety belt pretensioner deploys, the lap and shoulder
belt are tightened.
When the Safety Canopysystem and/or the front airbags are 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 seat 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 air bags or Safety Canopyand safety belt
pretensioners.
Refer to theSafety belt maintenancesection in this chapter.
2004 Expedition(exd)
Owners Guide (post-2002-fmt)
USA English(fus)
Seating and Safety Restraints
167
Page 172 of 344

Reasons given... Consider...
“Belts wrinkle my clothes”Possibly, but a serious crash can do
much more than wrinkle your clothes,
particularly if you are unbelted.
“The people I’m with don’t
wear belts”Set the example, teen deaths occur 4
times more often in vehicles with
TWO or MORE people. Children and
younger brothers/sisters imitate
behavior they see.
“I have an air bag”Air bags offer greater protection when
used with safety belts. Frontal airbags
are not designed to inflate in rear and
side crashes or rollovers.
“I’d rather be thrown clear”Not a good idea.Peoplewho are
ejected are 40 times more likely
to DIE.Safety belts help prevent
ejection, WE CAN’T“PICK OUR
CRASH”.
Do not sit on top of a buckled safety belt to avoid the Belt
Minderchime. Sitting on the safety belt will increase the risk
of injury in an accident. To disable (one-time) or deactivate the Belt
Minderfeature please follow the directions stated below.
One time disable
Any time the safety belt is buckled and then unbuckled during an
ignition ON cycle, BeltMinderwill be disabled for that ignition cycle
only.
Deactivating/activating the BeltMinderfeature
Read steps1-9thoroughly before proceeding with the
deactivation/activation programming procedure.
The BeltMinderfeature can be deactivated/activated by performing the
following procedure:
Before following the procedure, make sure that:
•The parking brake is set
•The gearshift is in P (Park) (automatic transmission)
2004 Expedition(exd)
Owners Guide (post-2002-fmt)
USA English(fus)
Seating and Safety Restraints
172
Page 177 of 344

How does the air bag supplemental restraint system work?
The air bag SRS is designed to
activate when the vehicle sustains
longitudinal deceleration sufficient
to cause the sensors to close an
electrical circuit that initiates air
bag inflation.
The fact that the air bags did not
inflate in a collision does not mean
that something is wrong with the
system. Rather, it means the forces
were not of the type sufficient to
cause activation. The driver and passenger airbags are designed to inflate
in frontal and near-frontal collisions, not rollover, side-impact, or
rear-impacts unless the collision causes sufficient longitudinal
deceleration.
The air bags inflate and deflate
rapidly upon activation. After air bag
deployment, it is normal to notice a
smoke-like, powdery residue or
smell the burnt propellant. This may
consist of cornstarch, talcum
powder (to lubricate the bag) or
sodium compounds (e.g., baking
soda) that result from the
combustion process that inflates the
air bag. Small amounts of sodium
hydroxide may be present which
may irritate the skin and eyes, but
none of the residue is toxic.
While the system is designed to help
reduce serious injuries, contact with
a deploying air bag may also cause abrasions, swelling or temporary
hearing loss. Because air bags must inflate rapidly and with considerable
force, there is the risk of death or serious injuries such as fractures,
facial and eye injuries or internal injuries, particularly to occupants who
are not properly restrained or are otherwise out of position at the time
of air bag deployment. Thus, it is extremely important that occupants be
properly restrained as far away from the air bag module as possible while
maintaining vehicle control.
2004 Expedition(exd)
Owners Guide (post-2002-fmt)
USA English(fus)
Seating and Safety Restraints
177
Page 180 of 344

How does the Safety Canopysystem work?
The design and development of the
Safety Canopysystem included
recommended testing procedures
that were developed by a group of
automotive safety experts known as
the Side Air Bag Technical Working
Group. These recommended testing
procedures help reduce the risk of
injuries related to the deployment of
side airbags (including the Safety
Canopy).
The Safety Canopysystem
consists of the following:
•An inflatable nylon curtain with a
gas generator concealed behind
the headliner and above the doors
(one on each side of vehicle).
•A headliner designed to flex open
above the side doors to allow Safety Canopydeployment.
•The same warning light, electronic control and diagnostic unit as used
for the front airbags.
•Two crash sensors mounted in the front doors (one on each side).
•Two crash sensors located at the c-pillar behind the rear doors (one
on each side).
•Rollover sensor in the restraints control module (RCM).
The Safety Canopysystem, in combination with seat belts, can help
reduce the risk of severe injuries in the event of a significant side impact
collision or rollover event.
Children 12 years old and under should always be properly restrained in
the second or third row seats. The Safety Canopywill not interfere
with children restrained using a properly installed child or booster seat
because it is designed to inflate downward from the headliner above the
doors along the side window opening.
The Safety Canopysystem is designed to activate when the vehicle
sustains lateral deceleration sufficient to cause the side crash sensor to
close an electrical circuit that initiates Safety Canopyinflation or when
a certain likelihood of a rollover event is detected by the rollover sensor.
2004 Expedition(exd)
Owners Guide (post-2002-fmt)
USA English(fus)
Seating and Safety Restraints
180
Page 337 of 344

Interior style
Cell phone holders
Electrochromatic compass/temperature interior mirrors
Floor mats
Interior trim kits
Leather wrapped steering wheels
Scuff plates
Lifestyle
Bike racks
Cargo organization and management
Engine block heaters and blankets
Rear seat entertainment systems
Towing mirrors
Trailer hitches, wiring harnesses and accessories
Peace of mind
Airbag anti-theft locks
First aid and safety kits
Full vehicle covers
Locking gas cap
Navigation systems
Remote start
Vehicle security systems
For maximum vehicle performance, keep the following information in
mind when adding accessories or equipment to your vehicle:
•When adding accessories, equipment, passengers and luggage to your
vehicle, do not exceed the total weight capacity of the vehicle or of
the front or rear axle (GVWR or GAWR as indicated on the Safety
Compliance Certification label). Consult your dealer for specific weight
information.
•The Federal Communications Commission (FCC) and Canadian Radio
Telecommunications Commission (CRTC) regulate the use of mobile
communications systems—such as two-way radios, telephones and
theft alarms - that are equipped with radio transmitters. Any such
2004 Expedition(exd)
Owners Guide (post-2002-fmt)
USA English(fus)
Accessories
337