FORD F250 SUPER DUTY 2017 Service Manual

Seatbelt Locking Modes
WARNINGS
After any vehicle crash, the seatbeltsystem at all passenger seatingpositions must be checked by anauthorized dealer to verify that theautomatic locking retractor feature forchild seats is still functioning properly. Inaddition, all seatbelts should be checkedfor proper function.
The belt and retractor must bereplaced if the seatbelt assemblyautomatic locking retractor featureor any other seatbelt function is notoperating properly when checked by anauthorized dealer. Failure to replace thebelt and retractor assembly could increasethe risk of injury in crashes.
All safety restraints in the vehicle arecombination lap and shoulder belts. Thedriver seatbelt has the first type of lockingmode, and the front outboard passengerand rear seat seatbelts have both types oflocking modes described as follows:
Vehicle Sensitive Mode
This is the normal retractor mode, whichallows free shoulder belt lengthadjustment to your movements andlocking in response to vehicle movement.For example, if the driver brakes suddenly,turns a corner sharply, or the vehiclereceives an impact of about 5 mph(8 km/h) or more, the combinationseatbelts will lock to help reduce forwardmovement of the driver and passengers.
In addition, the retractor is designed to lockif the webbing is pulled out too quickly. Ifthis occurs, let the belt retract slightly andpull webbing out again in a slow andcontrolled manner.
Automatic Locking Mode
In this mode, the shoulder belt isautomatically pre-locked. The belt will stillretract to remove any slack in the shoulderbelt. The automatic locking mode is notavailable on the driver seatbelt.
When to Use the Automatic LockingMode
Use this mode any time you install a childsafety seat in a front outboard passengerseating position in a Regular Cab,SuperCab, SuperCrew or any rear seatingposition of a SuperCab or SuperCrew. Theoptional front seat's center seatbelt has acinch mechanism. Children 12 years oldand under should be properly restrained ina rear seat whenever possible. See ChildSafety (page 17).
How to Use the Automatic LockingMode
Non-inflatable seatbelts
1. Buckle the combination lap andshoulder belt.
2. Grasp the shoulder portion and pulldownward until you pull the entire beltout.
3. Allow the belt to retract. As the beltretracts, you will hear a clicking sound.This indicates the seatbelt is now in theautomatic locking mode.
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Rear outboard inflatable seatbelts(second row only– if equipped)
1. Buckle the combination lap andshoulder belt.
2. Grasp the lap portion of the belt andpull upward until the entire belt ispulled out.
3. Allow the belt to retract. As the beltretracts, you will hear a clicking sound.This indicates the seatbelt is now in theautomatic locking mode.
How to Disengage the AutomaticLocking Mode
Unbuckle the combination lap andshoulder belt and allow it to retractcompletely to disengage the automaticlocking mode and activate the vehiclesensitive (emergency) locking mode.
Rear Inflatable Seatbelt (If Equipped)
WARNING
Do not attempt to service, repair, ormodify the rear inflatable seatbelt.
The rear inflatable seatbelts are fitted inthe shoulder portion of the seatbelts of thesecond-row outboard seating positions.
Note:The rear inflatable seatbelts arecompatible with most infant and childsafety car seats and belt positioning boosterseats when properly installed. This isbecause they are designed to fill with acooled gas at a lower pressure and at aslower rate than traditional airbags. Afterinflation, the shoulder portion of theseatbelt remains cool to the touch.
The rear inflatable seatbelt consists of thefollowing:
•An inflatable bag located in theshoulder seatbelt webbing.
•Lap seatbelt webbing with automaticlocking mode.
•The same warning light, electroniccontrol and diagnostic unit as used forthe front seatbelts.
•Impact sensors located in various partsof the vehicle.
How does the rear inflatable seatbeltsystem work?
The rear inflatable seatbelts will functionlike standard restraints in everyday usage.
During a crash of sufficient force, theinflatable belt will inflate from inside thewebbing.
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The fully inflated belt's increased diametermore effectively holds the occupant in theappropriate seating position, and spreadscrash forces over more area of the bodythan regular seatbelts. This helps reducepressure on the chest and helps controlhead and neck motion for passengers.
WARNING
If the rear inflatable seatbelt hasdeployed, it will not function again.The rear inflatable seatbelt systemmust be replaced by an authorized dealer.
The rear inflatable seatbelts are designedto inflate in frontal or near-frontal crashes,rollovers and some side impact crashes.The fact that the rear inflatable seatbeltdid not inflate in a crash does not meanthat something is wrong with the system.Rather, it means the forces were not of thetype sufficient to cause activation.
SEATBELT HEIGHT
ADJUSTMENT
WARNING
Position the safety belt heightadjuster so that the belt rests acrossthe middle of your shoulder. Failureto adjust the safety belt properly couldreduce the effectiveness of the safety beltand increase the risk of injury in a crash.
Adjust the height of the shoulder belt sothe belt rests across the middle of yourshoulder.
To adjust the shoulder belt height:
1. Pull the button and slide the heightadjuster up or down.
2. Release the button and pull down onthe height adjuster to make sure it islocked in place.
SEATBELT WARNING LAMP
AND INDICATOR CHIME
This lamp illuminates and anaudible warning will sound if thedriver's safety belt has not beenfastened when the vehicle's ignition isturned on.
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Conditions of operation
Then...If...
The safety belt warning light illuminates 1-2 minutes and the warning chime sounds4-8 seconds.
The driver's safety belt is not buckledbefore the ignition switch is turned to theon position...
The safety belt warning light and warningchime turn off.The driver's safety belt is buckled while theindicator light is illuminated and thewarning chime is sounding...
The safety belt warning light and indicatorchime remain off.The driver's safety belt is buckled beforethe ignition switch is turned to the on posi-tion...
SEATBELT REMINDER
Belt-Minder™
This feature supplements the seatbeltwarning function. It provides additionalreminders by intermittently sounding achime and illuminating the seatbeltwarning light when you are in the driverseat and a seatbelt is unbuckled.
Then...If...
The Belt-Minder feature will not activate.You buckle your seatbelt before you switchthe ignition on or less than 1-2 minuteselapse after you switch the ignition on...
The Belt-Minder feature activates - theseatbelt warning light illuminates and awarning tone sounds for six seconds every25 seconds, repeating for about fiveminutes or until you buckle your seatbelt.
You do not buckle your seatbelt before yourvehicle reaches at least 6 mph (9.7 km/h)and 1-2 minutes elapse after you switch theignition on...
The Belt-Minder feature activates - theseatbelt warning light illuminates and thewarning tone sounds for six seconds every25 seconds, repeating for about fiveminutes or until you buckle your seatbelt.
The driver seatbelt is unbuckled for aboutone minute while the vehicle is traveling atleast 6 mph (9.7 km/h) and more than 1-2minutes elapse after you switch the ignitionon...
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Seatbelts

Deactivating and Activating theBelt-Minder Feature (Driver only)
WARNING
While the system allows you todeactivate it, this system is designedto improve your chances of beingsafely belted and surviving an accident.We recommend you leave the systemactivated for yourself and others who mayuse the vehicle. To reduce the risk of injury,do not deactivate or activate the systemwhile driving the vehicle.
Note:If you are using MyKey, you cannotdisable the Belt-Minder. Also, if theBelt-Minder has been previously disabled,it will be re-enabled during the use ofMyKey. See MyKey™ (page 61).
Read Steps 1 - 4 thoroughly beforeproceeding with the programmingprocedure.
Before following the procedure, make surethat:
•The parking brake is set.
•The transmission is in park (P).
•The ignition is off.
•All vehicle doors are closed.
•The driver seatbelt is unbuckled.
1.Switch the ignition on. Do not start theengine.
2. Wait until the seatbelt warning lightturns off (about one minute). You mustcomplete Step 3 within 30 secondsafter the seatbelt warning light turnsoff.
3. Buckle then unbuckle the seatbeltthree times at a moderate speed,ending with the seatbelt in theunbuckled state. After Step 3, theseatbelt warning light turns on.
4. While the seatbelt warning light is on,buckle then unbuckle the seatbelt.After Step 4, the seatbelt warning lightflashes for confirmation.
•This will switch the feature off if it iscurrently on.
•This will switch the feature on if it iscurrently off.
CHILD RESTRAINT AND
SEATBELT MAINTENANCE
Inspect the vehicle safety belts and childsafety seat systems periodically to makesure they work properly and are notdamaged. Inspect the vehicle and childseat safety belts to make sure there are nonicks, tears or cuts. Replace if necessary.All vehicle safety belt assemblies, includingretractors, buckles, front safety belt buckleassemblies, buckle support assemblies(slide bar-if equipped), shoulder beltheight adjusters (if equipped), shoulderbelt guide on seat back (if equipped), childsafety seat LATCH and tether anchors, andattaching hardware, should be inspectedafter a crash. Read the child restraintmanufacturer's instructions for additionalinspection and maintenance informationspecific to the child restraint.
Ford Motor Company recommends thatall safety belt assemblies in use in vehiclesinvolved in a crash be replaced. However,if the crash was minor and an authorizeddealer finds that the belts do not showdamage and continue to operate properly,they do not need to be replaced. Safetybelt assemblies not in use during a crashshould also be inspected and replaced ifeither damage or improper operation isnoted.
Properly care for safety belts. See VehicleCare (page 364).
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Seatbelts

SEATBELT EXTENSION
WARNINGS
Persons who fit into the vehicle'sseatbelt should not use an extension.Unnecessary use could result inserious personal injury in the event of acrash.
Only use extensions provided free ofcharge by Ford Motor Companydealers. The dealer will provide anextension designed specifically for thisvehicle, model year and seating position.The use of an extension intended foranother vehicle, model year or seatingposition may not offer you the fullprotection of your vehicle’s seatbeltrestraint system.
Never use seatbelt extensions toinstall child restraints.
Do not use a seatbelt extension withan inflatable seatbelt.
Do not use extensions to change thefit of the belt across the torso, overthe lap or to make the seatbeltbuckle easier to reach.
If, because of body size or driving position,it is not possible to properly fasten theseatbelt over your lap and shoulder, anextension that is compatible with theseatbelts is available free of charge fromFord Motor Company dealers. Only Fordseatbelt extensions made by the originalequipment seatbelts manufacturer shouldbe used with Ford seatbelts. Ask yourauthorized dealer if your extension iscompatible with your Ford vehicle restraintsystem.
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Seatbelts

PRINCIPLE OF OPERATION
WARNINGS
Airbags do not inflate slowly orgently, and the risk of injury from adeploying airbag is the greatest closeto the trim covering the airbag module.
All occupants of your vehicle,including the driver, should alwaysproperly wear their safety belts, evenwhen an airbag supplemental restraintsystem is provided. Failure to properly wearyour safety belt could seriously increasethe risk of injury or death.
Always transport children 12 yearsold and under in the back seat andalways properly use appropriatechild restraints. Failure to follow this couldseriously increase the risk of injury or death.
Never place your arm over the airbagmodule as a deploying airbag canresult in serious arm fractures orother injuries.
Airbags can kill or injure a child in achild seat. Never place a rear-facingchild seat in front of an active airbag.If you must use a forward-facing child seatin the front seat, move the seat upon whichthe child seat is installed all the way back.
Do not attempt to service, repair, ormodify the airbag supplementalrestraint systems or its fuses as youcould be seriously injured or killed. Contactyour authorized dealer as soon as possible.
Several airbag system componentsget hot after inflation. To avoid riskof injury, do not touch them afterinflation.
If the airbag has deployed, the airbagwill not function again and must bereplaced immediately. If the airbagis not replaced, the unrepaired area willincrease the risk of injury in a crash.
The airbags are a supplemental restraintsystem and are designed to work with thesafety belts to help protect the driver andright front passenger from certain upperbody injuries. Airbags do not inflate slowly;there is a risk of injury from a deployingairbag.
Note:You will hear a loud bang and see acloud of harmless powdery residue if anairbag deploys. This is normal.
The airbags inflate and deflate rapidlyupon activation. After airbag deployment,it is normal to notice a smoke-like, powderyresidue or smell the burnt propellant. Thismay consist of cornstarch, talcum powder(to lubricate the bag) or sodiumcompounds (for example, baking soda)that result from the combustion processthat inflates the airbag. Small amounts ofsodium hydroxide may be present whichmay irritate the skin and eyes, but none ofthe residue is toxic.
While the system is designed to helpreduce serious injuries, contact with adeploying airbag may also cause abrasionsor swelling. Temporary hearing loss is alsoa possibility as a result of the noiseassociated with a deploying airbag.Because airbags must inflate rapidly andwith considerable force, there is the risk ofdeath or serious injuries such as fractures,facial and eye injuries or internal injuries,particularly to occupants who are notproperly restrained or are otherwise out ofposition at the time of airbag deployment.Thus, it is extremely important thatoccupants be properly restrained as faraway from the airbag module as possiblewhile maintaining vehicle control.
Routine maintenance of the airbags is notrequired.
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Supplementary Restraints System

DRIVER AND PASSENGER
AIRBAGS
WARNINGS
Never place your arm over the airbagmodule as a deploying airbag canresult in serious arm fractures orother injuries.
Airbags can kill or injure a child in achild restraint. Never place arear-facing child restraint in front ofan active airbag. If you must use aforward-facing child restraint in the frontseat, move the seat upon which the childseat is installed all the way back.
The driver and front passenger airbagsdeploy during significant frontal and nearfrontal crashes.
The driver and passenger front airbagsystem consists of:
•Driver and passenger airbag modules.
· Crash sensors and monitoringsystem with readiness indicator.See Crash Sensors and AirbagIndicator (page 52).
Passenger Airbag On and OffSwitch (If Equipped)
WARNINGS
Even with advanced restraintssystems, properly restrain children12 and under in a rear seatingposition. Failure to follow this couldseriously increase the risk of injury or death.
The front passenger airbag is notdesigned to offer protection to anoccupant in the center seatingposition.
Your vehicle may have an airbagdeactivation switch. Before driving,always look at the switch to makesure it is in the appropriate position. Failureto put the switch in the proper position canincrease the risk of serious injury or deathin a crash.
High-series vehicles (if equipped)
The front passenger airbag on and offswitch has indicators that illuminate,indicating that the front passenger frontalairbag is either on or off. The indicator lampis near the center of the instrument panel.
Note:The passenger airbag status indicatorOFF and ON lamps illuminate for a shortperiod of time when you switch the ignitionon to confirm it is functional.
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Passenger airbagPassenger airbag statusindicatorSwitch position
DisabledOFF: LitOff
ON: Unlit
EnabledOFF: UnlitOn
ON: Lit
Low-series vehicles (if equipped)
The front passenger airbag on and offswitch has an indicator that illuminatesand stays lit to remind you that the frontpassenger frontal airbag is off. Theindicator lamp is near the center of theinstrument panel.
Note:The indicator lamp illuminates for ashort period of time when you switch theignition on to confirm it is functional.
Turning the Passenger Airbag Off
WARNINGS
If the light does not illuminate whenthe passenger airbag switch is offand you switch the ignition on, havethe passenger airbag switch servicedimmediately by a qualified technician.
To avoid switching on the airbag,always remove the ignition key withthe switch in the off position.
WARNINGS
If your vehicle has rear seats, alwaystransport children who are 12 andyounger in the rear seat. Always useseatbelts and child restraints properly. Donot place a child in a rear facing infant seatin the front seat unless your vehicle isequipped with an airbag on and off switchand the passenger airbag is turned off. Thisis because the back of the infant seat istoo close to the inflating airbag and therisk of a fatal injury to the infant when theairbag inflates is substantial.
The passenger airbag on and off switch isin the glovebox.
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1. Insert the ignition key, turn the switchto OFF and hold in OFF while removingthe key.
2. When you switch the ignition on, thepassenger airbag off light illuminatesbriefly, momentarily shuts off and thenturns back on. This indicates that thepassenger airbag is deactivated.
Turning the Passenger Airbag Back On
WARNINGS
The seatbelts for the driver and rightfront passenger seating positions arespecifically designed to operatetogether with the airbags in certain typesof crashes. When you switch off yourairbag, you not only lose the protection ofthe airbag, you also may reduce theeffectiveness of your seatbelt system. Ifthe passenger does not meet therequirements stated in the NationalHighway Traffic Safety Administration orTransport Canada deactivation criteria,switching off the airbag can increase therisk of serious injury or death in a crash.
If your vehicle has rear seats, alwaystransport children who are 12 andyounger in the rear seat. Always useseatbelts and child restraints properly. Donot place a child in a rear facing infant seatin the front seat unless your vehicle isequipped with an airbag on and off switchand the passenger airbag is turned off. Thisis because the back of the infant seat istoo close to the inflating airbag and therisk of a fatal injury to the infant when theairbag inflates is substantial.
If the passenger airbag off light isilluminated when the passengerairbag switch is on and the ignitionis on, have the passenger airbag switchserviced immediately by a qualifiedtechnician.
The passenger airbag remains off until youturn it back on.
1. Insert the ignition key and turn theswitch to ON.
2. The passenger airbag off light willbriefly illuminate when you switch theignition on. This indicates that thepassenger airbag is operational.
The passenger side airbag should alwaysbe on (the passenger airbag off lightshould not be illuminated) unless thepassenger is a person who meets therequirements stated either in Category 1, 2or 3 of the National Highway Traffic SafetyAdministration or Transport Canadadeactivation criteria which follows.
The vast majority of drivers and passengersare much safer with an airbag thanwithout. To do their job and reduce the riskof life threatening injuries, airbags mustopen with great force, and this force canpose a potentially deadly risk in somesituations, particularly when a front seatoccupant is not properly buckled up. Themost effective way to reduce the risk ofunnecessary airbag injuries withoutreducing the overall safety of the vehicleis to make sure all occupants are properlyrestrained in the vehicle, especially in the
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