light FORD EXPLORER SPORT TRAC 2010 Service Manual

SAFETY RESTRAINTS
Personal Safety System
The Personal Safety System
provides an improved overall level of
frontal crash protection to front seat occupants and is designed to help
further reduce the risk of airbag-related injuries. The system is able to
analyze different occupant conditions and crash severity before activating
the appropriate safety devices to help better protect a range of
occupants in a variety of frontal crash situations.
Your vehicle’s Personal Safety System
consists of:
•Driver and passenger dual-stage airbag supplemental restraints.
•Front safety belts with pretensioners, energy management retractors,
and safety belt usage sensors.
•Driver’s seat position sensor.
•Front passenger sensing system
•“Passenger airbag off” or “pass airbag off” indicator lamp
•Front crash severity sensor.
•Restraints Control Module (RCM).
•Restraint system warning light and back-up tone.
•The electrical wiring for the airbags, crash sensor(s), safety belt
pretensioners, front safety belt usage sensors, driver seat position
sensor, front passenger sensing system, and indicator lights.
How does the Personal Safety Systemwork?
The Personal Safety System
can adapt the deployment strategy of your
vehicle’s safety devices according to crash severity and occupant
conditions. A collection of crash and occupant sensors provides
information to the Restraints Control Module (RCM). During a crash, the
RCM may activate the safety belt pretensioners and/or either one or both
stages of the dual-stage airbag supplemental restraints based on crash
severity and occupant conditions.
The fact that the pretensioners or airbags did not activate for both front
seat occupants in a collision does not mean that something is wrong with
the system. Rather, it means the Personal Safety System
determined
the accident conditions (crash severity, belt usage, etc.) were not
appropriate to activate these safety devices. Front airbags are designed
to activate only in frontal and near-frontal collisions, not rollovers,
side-impacts, or rear-impacts unless the collision causes sufficient
longitudinal deceleration.
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The front passenger sensing system can automatically turn off the front
passenger airbag and passenger seat-mounted side airbag. The system is
designed to help protect small (child size) occupants from frontal airbag
deployments when they are seated or restrained in the front passenger
seat contrary to proper child-seating or restraint usage
recommendations. Even with this technology, parents areSTRONGLY
encouraged to always properly restrain children in a rear seating
position. The sensor also turns off the passenger front airbag and
passenger seat-mounted side airbag when the passenger seat is empty.
Front safety belt usage sensors
The front safety belt usage sensors detect whether or not the driver and
front outboard passenger safety belts are fastened. This information
allows your Personal Safety System
to tailor the airbag deployment and
safety belt pretensioner activation depending upon safety belt usage.
Front safety belt pretensioners
The safety belt pretensioners at the front outboard seating positions are
designed to tighten the safety belts firmly against the occupant’s body
during frontal collisions, and in side collisions and rollovers. This helps
increase the effectiveness of the safety belts. In frontal collisions, the
safety belt pretensioners can be activated alone or, if the collision is of
sufficient severity, together with the front airbags.
Front safety belt energy management retractors
The front outboard safety belt energy management retractors allow
webbing to be pulled out of the retractor in a gradual and controlled
manner in response to the occupant’s forward momentum. This helps
reduce the risk of force-related injuries to the occupant’s chest by
limiting the load on the occupant. Refer toEnergy management feature
section in this chapter.
Determining if the Personal Safety Systemis operational
The Personal Safety System
uses a warning light in the instrument
cluster or a back-up tone to indicate the condition of the system. Refer
to theWarning lights and chimessection in theInstrument Cluster
chapter. Routine maintenance of the Personal Safety System
is not
required.
The Restraints Control Module (RCM) monitors its own internal circuits
and the circuits for the airbag supplemental restraints, crash sensor(s),
safety belt pretensioners, front safety belt buckle sensors, front
passenger sensing system, and the driver seat position sensor. In
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addition, the RCM also monitors the restraints warning light in the
instrument cluster. A difficulty with the system is indicated by one or
more of the following:
•The warning light will either flash or stay lit.
•The warning light will not illuminate immediately after the ignition is
turned on.
•A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and warning light are repaired.
If any of these things happen, even intermittently, contact your
authorized dealer as soon as possible. Unless serviced, the system may
not function properly in the event of a collision.
Safety restraints precautions
WARNING:Always drive and ride with your seatback upright
and the lap belt snug and low across the hips.
WARNING:To reduce the risk of injury, make sure children sit
in a rear seating position where they can be properly restrained.
WARNING:Never let a passenger hold a child on his or her lap
while the vehicle is moving. The passenger cannot protect the
child from injury in a collision.
WARNING:All occupants of the vehicle, including the driver,
should always properly wear their safety belts, even when an
airbag supplemental restraint system (SRS) is provided.
WARNING:It is extremely dangerous to ride in a cargo area,
inside or outside of a vehicle. In a collision, people riding in
these areas are more likely to be seriously injured or killed. Do not
allow people to ride in any area of your vehicle that is not equipped
with seats and safety belts. Be sure everyone in your vehicle is in a
seat and using a safety belt properly.
WARNING:In a rollover crash, an unbelted person is
significantly more likely to die than a person wearing a safety
belt.
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To adjust the comfort guide:
1. Slip the shoulder belt into the
belt guide.
2. Slide the guide up or down along
the webbing so that the belt is
centered on the occupant’s shoulder.
WARNING:Position the safety belt comfort guide so that the
belt rests across the middle of your shoulder. Failure to adjust
the safety belt properly could reduce the effectiveness of the safety
belt and increase the risk of injury in a collision.
Safety belt extension assembly
If the safety belt is too short when fully extended, there is an 8 inch
(20 cm) safety belt extension assembly that can be added (part number
611C22). This assembly can be obtained from an authorized dealer.
Use only extensions manufactured by the same supplier as the safety
belt. Manufacturer identification is located at the end of the webbing on
the label. Also, use the safety belt extension only if the safety belt is too
short for you when fully extended.
WARNING:Do not use extensions to change the fit of the
shoulder belt across the torso.
Safety belt warning light and indicator chime
The safety belt warning light illuminates in the instrument cluster and a
chime sounds to remind the occupants to fasten their safety belts.
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Conditions of operation
If... Then...
The driver’s safety belt is not
buckled before the ignition
switch is turned to the on
position...The safety belt warning light
illuminates 1-2 minutes and the
warning chime sounds 4-8 seconds.
The driver’s safety belt is
buckled while the indicator
light is illuminated and the
warning chime is sounding...The safety belt warning light and
warning chime turn off.
The driver’s safety belt is
buckled before the ignition
switch is turned to the on
position...The safety belt warning light and
indicator chime remain off.
Belt-Minder
The Belt-Minder
feature is a supplemental warning to the safety belt
warning function. This feature provides additional reminders by
intermittently sounding a chime and illuminating the safety belt warning
light in the instrument cluster when the driver’s and front passenger’s
safety belt is unbuckled.
The Belt-Minder
feature uses information from the front passenger
sensing system to determine if a front seat passenger is present and
therefore potentially in need of a warning. To avoid activating the
Belt-Minder
feature for objects placed in the front passenger seat,
warnings will only be given to large front seat occupants as determined
by the front passenger sensing system.
Both the driver’s and passenger’s safety belt usages are monitored and
either may activate the Belt-Minder
feature. The warnings are the same
for the driver and the front passenger. If the Belt-Minder
warnings have
expired (warnings for approximately five minutes) for one occupant
(driver or front passenger), the other occupant can still activate the
Belt-Minder
feature.
When the Belt-Minder
feature is activated, the safety belt warning light
illuminates and the warning chime sounds for six seconds every
30 seconds, repeating for approximately five minutes or until the safety
belts are buckled.
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The Belt-Minder
feature uses two different warning chimes. During the
first minute of activation, the warning chime will sound once every
second. The remaining warning chimes will sound twice every second
while the system is activated.
If... Then...
The driver’s and front
passenger’s safety belts are
buckled before the ignition
switch is turned to the on
position or less than
1-2 minutes have elapsed since
the ignition switch has been
turned on...The Belt-Minder
feature will not
activate.
The driver’s or front
passenger’s safety belt is not
buckled when the vehicle has
reached at least 3 mph
(5 km/h) and 1-2 minutes have
elapsed since the ignition
switch has been turned to on...The Belt-Minder
feature is activated
- the safety belt warning light
illuminates and the warning chime
sounds for six seconds every
30 seconds, repeating for
approximately five minutes or until
the safety belts are buckled.
The driver’s or front
passenger’s safety belt becomes
unbuckled for approximately
1 minute while the vehicle is
traveling at least 3 mph
(5 km/h) and more than
1-2 minutes have elapsed since
the ignition switch has been
turned to on...The Belt-Minder
feature is activated
- the safety belt warning light
illuminates and the warning chime
sounds for six seconds every
30 seconds, repeating for
approximately five minutes or until
the safety belts are buckled.
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The following are reasons most often given for not wearing safety belts
(All statistics based on U.S. data):
Reasons given... Consider...
“Crashes are rare events”36700 crashes occur every day.The
more we drive, the more we are
exposed to “rare” events, even for
good drivers.1in4ofuswillbe
seriously injured in a crash during
our lifetime.
“I’m not going far”3of4fatal crashes occur within25
miles (40 km) of home.
“Belts are uncomfortable” We design our safety belts to enhance
comfort. If you are uncomfortable -
try different positions for the safety
belt upper anchorage and seatback
which should be as upright as
possible; this can improve comfort.
“I was in a hurry”Prime time for an accident.
Belt-Minder
reminds us to take a few
seconds to buckle up.
“Safety belts don’t work”Safety belts,when used properly,
reduce risk of deathto front seat
occupants by45% in cars,and by
60% in light trucks.
“Traffic is light”Nearly 1 of 2 deaths occur in
single-vehicle crashes,many when
no other vehicles are around.
“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.
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The driver and front passenger Belt-Minder
features 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)
•The ignition switch is in the off position
•The driver and front passenger safety belts are unbuckled
WARNING:While the design allows you to deactivate your
Belt-Minder
, this system is designed to improve your chances of
being safely belted and surviving an accident. We recommend you
leave the Belt-Minder
system activated for yourself and others who
may use the vehicle. To reduce the risk of injury, do not
deactivate/activate the Belt-Minder
feature while driving the vehicle.
1. Turn the ignition switch to the on position. DO NOT START THE
ENGINE.
2. Wait until the safety belt warning light turns off (Approximately one
minute).
•Step 3 must be completed within 50 seconds after the safety belt
warning light turns off.
3. For the seating position being disabled, buckle then unbuckle the
safety belt nine times at a moderate speed, ending in the unbuckled
state. Step 3 must be completed within 50 seconds after the safety belt
warning light turns off.
•After Step 3, the safety belt warning light will be turned on for three
seconds.
4. Within approximately seven seconds of the light turning off, buckle
then unbuckle the safety belt.
•This will disable the Belt-Minder
feature for that seating position if it
is currently enabled. As confirmation, the safety belt warning light will
flash four times per second for three seconds.
•This will enable the Belt-Minder
feature for that seating position if it
is currently disabled. As confirmation, the safety belt warning light will
flash four times per second for three seconds, followed by three
seconds with the light off, then followed by the safety belt warning
light flashing four times per second for three seconds again.
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WARNING:Never place your arm over the airbag module as a
deploying airbag can result in serious arm fractures or other
injuries.
To properly position yourself away from the airbag:
•Move your seat to the rear as far as you can while still reaching the
pedals comfortably.
•Recline the seat slightly one or two degrees from the upright position.
WARNING:Do not put anything on or over the airbag module.
Placing objects on or over the airbag inflation area may cause
those objects to be propelled by the airbag into your face and torso
causing serious injury.
WARNING:Do not attempt to service, repair, or modify the
airbag supplemental restraint systems or its fuses. Contact your
authorized dealer as soon as possible.
WARNING:Modifications to the front end of the vehicle,
including frame, bumper, front end body structure and non-Ford
tow hooks may effect the performance of the airbag sensors increasing
the risk of injury. Do not modify the front end of the vehicle with
anything other than authorized Ford accessories for your vehicle.
WARNING:Additional equipment may affect the performance of
the airbag sensors increasing the risk of injury.
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•one or more impact and safing sensors.
•a readiness light and tone.
•diagnostic module.
•and the electrical wiring which connects the components.
•Front passenger sensing system. Refer toFront passenger sensing
systemlater in this chapter.
•“Passenger airbag off” or “pass airbag off” indicator lamp. Refer to
Front passenger sensing systemlater in this chapter.
The diagnostic module monitors its own internal circuits and the
supplemental airbag electrical system wiring (including the impact
sensors), the system wiring, the airbag system readiness light, the airbag
back up power and the airbag ignitors.
Front passenger sensing system
The front passenger sensing system is designed to meet the regulatory
requirements of Federal Motor Vehicle Safety Standard (FMVSS) 208
and is designed to disable (will not inflate) the front passenger’s frontal
airbag under certain conditions.
The front passenger sensing system works with sensors that are part of
the front passenger’s seat and safety belt. The sensors are designed to
detect the presence of a properly seated occupant and determine if the
front passenger’s frontal airbag should be enabled (may inflate) or
disabled (will not inflate).
The front passenger sensing system will disable (will not inflate) the
front passenger’s frontal airbag if:
•the front passenger seat is unoccupied, or has small/medium objects in
the front seat.
•the system determines that an infant is present in a rear-facing infant
seat that is installed according to the manufacturer’s instructions.
•the system determines that a small child is present in a forward-facing
child restraint that is installed according to the manufacturer’s
instructions.
•the system determines that a small child is present in a booster seat.
•a front passenger takes his/her weight off of the seat for a period of
time.
When the passenger airbag off light is illuminated, the passenger side
airbag may be disabled to avoid the risk of airbag deployment injuries.
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