2017 FORD F450 SUPER DUTY differential

Starting and Stopping theEngine
General Information.....................................173
Ignition Switch................................................173
Keyless Starting.............................................174
Starting a Gasoline Engine - 6.2L/6.8L................................................................174
Starting a Diesel Engine - 6.7LDiesel.............................................................176
Diesel Particulate Filter..............................180
Switching Off the Engine - 6.7LDiesel............................................................180
Engine Idle Shutdown..................................181
Engine Block Heater.....................................181
Fuel and Refueling
Safety Precautions......................................183
Fuel Quality - E85........................................184
Fuel Quality - Diesel....................................185
Fuel Quality - Gasoline...............................187
Running Out of Fuel....................................188
Selective Catalytic Reduction System -Diesel............................................................188
Refueling - Gasoline....................................192
Refueling - Diesel.........................................193
Fuel Consumption.......................................195
Emission Control System - Gasoline.....196
Emission Control System - Diesel.........199
Transmission
Automatic Transmission..........................205
Power Take-Off...........................................209
Four-Wheel Drive
Using Four-Wheel Drive.............................210
Rear Axle
Limited Slip Differential.............................219
Electronic Locking Differential................219
Brakes
General Information.....................................221
Hints on Driving With Anti-LockBrakes...........................................................222
Parking Brake.................................................222
Hill Start Assist.............................................223
Traction Control
Principle of Operation................................225
Using Traction Control...............................225
Stability Control
Principle of Operation................................226
Using Stability Control...............................227
Terrain Control
Principle of Operation................................229
Using Hill Descent Control.......................229
Parking Aids
Principle of Operation.................................231
Rear Parking Aid............................................231
Rear View Camera.......................................232
360 Degree Camera...................................235
Cruise Control
Principle of Operation................................239
Using Cruise Control...................................239
Using Adaptive Cruise Control...............240
Driving Aids
Lane Keeping System.................................247
Blind Spot Information System.............249
Cross Traffic Alert........................................254
Steering...........................................................256
Collision Warning System........................258
Load Carrying
Load Limit........................................................261
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Table of Contents

Cruise Control (If Equipped)
Illuminates when you switch thisfeature on. See Using CruiseControl (page 239).
Direction Indicator
Illuminates when the left or rightturn signal or the hazard warningflasher is turned on. If theindicators stay on or flash faster, check fora burned out bulb.
Door Ajar
Displays when the ignition is onand any door is not completelyclosed.
Electronic Locking Differential (If
Equipped)
Illuminates when using theelectronic locking differential.
Engine Coolant Temperature
Illuminates when the enginecoolant temperature is high.Stop the vehicle as soon aspossible, switch off the engine and let cool.
Engine Oil
If it illuminates with the enginerunning or when you are driving,this indicates a malfunction.Stop your vehicle as soon as it is safe todo so and switch the engine off. Check theengine oil level. See Engine Oil Check(page 327).
Note:Do not resume your journey if itilluminates despite the level being correct.Have the system checked by your authorizeddealer immediately.
Fasten Seatbelt
It illuminates and a chimesounds to remind you to fastenyour seatbelt.
Front Airbag
If it fails to illuminate when youstart your vehicle, continues toflash or remains on, it indicatesa malfunction. Have the system checkedby your authorized dealer.
Front Fog Lamps (If Equipped)
It illuminates when you switchthe front fog lamps on.
High Beam
Illuminates when you switch thehigh beam headlamps on. It willflash when you use theheadlamp flasher.
Hill Descent (If Equipped)
Illuminates when hill descent isswitched on.
Low Fuel Level
Illuminates when the fuel levelis low or the fuel tank is nearlyempty. Refuel as soon aspossible.
Low Tire Pressure Warning
Illuminates when your tirepressure is low. If the lampremains on with the enginerunning or when driving, check your tirepressure as soon as possible.
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Instrument ClusterE71340 E163170 E71880 E67017 E163171

Driver Alert
ActionMessage
Stop and rest as soon as it is safe to do so.Driver Alert Warning RestNow
Take a rest soon.Driver Alert Warning RestSuggested
Drivetrain
ActionMessage
The electronic locking differential requests a certain speedrequirement to engage.To Engage LockingDifferential Slow to XXmph/km/h
The electronic locking differential requests the acceleratorto be released in order to engage.To Engage LockingDifferential ReleaseAccelerator Pedal
An electronic locking differential (ELD) system fault ispresent. Contact an authorized dealer as soon as possible.Check Locking Differen-tial
The transfer case is in the neutral position. This messageindicates that your vehicle is safe to be towed with all fourwheels on the ground.
Neutral Tow EnabledLeave Transmission inNeutral
The transfer case is NOT in the neutral position. This messageindicates that your vehicle is NOT safe to be towed with allfour wheels on the ground.
Neutral Tow Disabled
Engine
ActionMessage
The engine has reduced power to help reduce highengine temperature.Power Reduced to Lower EngineTemp
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Information Displays

USING FOUR-WHEEL DRIVE
Note:For important information regardingthe safe operation of this type of vehicle,see General Information in the Wheels andTires chapter.
Note:Do not use 4H or 4L mode on dry,hard surfaced roads. Doing so can produceexcessive noise, increase tire wear and maydamage drive components. 4X4 mode isonly intended for consistently slippery orloose surfaces. Use of 4L mode on thesesurfaces may produce some noise (such asoccasional clunks), but will not damagedrive components.
Note:If 4X4 low is selected while thevehicle is moving above 3 mph (5 km/h),the 4WD system will not perform a shift.This is normal and should be no reason forconcern. Refer to Shifting to or from 4L (4X4Low) for proper operation.
Note:You can switch on and switch off theelectronic locking differential by pulling the4WD control (4WD vehicles) or turning theelectronic locking differential control (2WDvehicles). See Electronic LockingDifferential (page 219).
Manual Shift On Stop (MSOS)4WD system (If Equipped)
Note:The vehicle should not be driven in4X4 High or 4X4 Low modes with the hublocks set to FREE as this condition maydamage driveline system components.
The 4WD system is engaged or disengagedby rotating the control for both front wheelhub locks from the FREE or LOCK position,then manually engaging or disengaging thetransfer case with the floor-mountedshifter. For increased fuel economy in 2WD,rotate both hub locks to the FREE position.
Electronic Shift-On-the-Fly(ESOF) 4WD system (If Equipped)
Note:If 4X4 Low is selected while thevehicle is moving above 3 mph (5 km/h),the 4WD system will not perform a shift.This is normal and should be no reason forconcern. Refer to Shifting to or from 4L (4X4Low) for proper system operation.
Note:Auto-manual hub locks can bemanually overridden by rotating the hub lockcontrol from AUTO to LOCK.
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Four-Wheel Drive (If Equipped)LOC K
EERF
E163187 LOC K
OTUA
E163188

LIMITED SLIP DIFFERENTIAL
This axle provides added traction onslippery surfaces, particularly when onewheel is on a poor traction surface. Undernormal conditions, the limited-slip axlefunctions like a standard rear axle. The axlemay exhibit a slight noise or vibrationduring tight turns with low vehicle speed.This is normal behavior and indicates theaxle is working.
ELECTRONIC LOCKING
DIFFERENTIAL (If Equipped)
Note:The electronic locking differential isfor off-road use only and is not for use ondry pavement. Using the electronic lockingdifferential on dry pavement will result inincreased tire wear, noise and vibration.
The electronic locking differential is adevice housed in the rear axle that allowsboth rear wheels to turn at the samespeed. The electronic locking differentialcan provide additional traction should yourvehicle become stuck. You can activatethe differential electronically and shift iton the fly within the differential operatingspeed range. The differential is for use inmud, rocks, sand, or any off-road conditionwhere you need maximum traction. It isnot for use on dry pavement.
The following conditions will affect theelectronic locking differential:
•The electronic locking differential willnot engage if your vehicle speed isabove 20 mph (32 km/h) in 4x2, 4x4Auto, or 4x4 High modes.
•The electronic locking differential willnot engage if your vehicle speed isabove or 56 mph (90 km/h) in 4X4Low.
•The electronic locking differential maynot engage if you press youraccelerator pedal during anengagement attempt. A message maydisplay in the instrument displayguiding you to release the acceleratorpedal.
•In 4x2, 4x4 Auto, and 4x4 High modes,the electronic locking differential willautomatically disengage at speedsabove 25 mph (41 km/h) and willautomatically reengage at speedsbelow 20 mph (32 km/h).
•In 4L (4X4 low), the electronic lockingdifferential will automaticallydisengage at speeds above 62 mph(100 km/h) and will automaticallyreengage at speeds below 56 mph(90 km/h).
•The AdvanceTrac system has theability to take over control of theelectronic locking differential anddisable it during driving maneuverswhen necessary.
When you switch the system on, if you donot meet the required conditions forelectronic locking differential activation,the instrument cluster will display theappropriate information guiding youthrough the proper activation process.
Activating the Electronic LockingDifferential
Note:Do not use electronic lockingdifferential on dry, hard surfaced roads.Doing so will produce excessive noise,vibration and increase tire wear.
Note:If the electronic locking differentialhas difficulty disengaging, release theaccelerator pedal and turn the steeringwheel in the opposite direction while rolling.
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Rear Axle

For 4WD vehicles
Pull the 4WD control knob toward you.
For 2WD vehicles
Turn the control to ON.
Once the indicator lightilluminates in the informationdisplay, both rear wheel axleshafts will be locked together providingadded traction.
If the indicator does not come on, or theindicator turns off while driving, one of thefollowing has occurred:
•The vehicle speed is too high.
•The left and right rear wheel speeddifference is too high during anengagement attempt.
•The system has malfunctioned and isaccompanied by CHECK LOCKINGDIFFERENTIAL in the informationdisplay. See your authorized Forddealer for assistance.
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Rear AxleE191852 E183740 E163170

1.Turn the engine off and block the wheelthat is diagonally opposite of the flattire using the wheel chock.Note: Lockthe manual hub on the wheel if thevehicle is a 4x4.
2. Remove the jack, jack handle, lugwrench and spare tire from thestowage locations.
3.Use the tip of the lug wrench to removeany wheel trim.
4. Loosen each wheel lug nut ½ turncounterclockwise, but do not removethem until the wheel is raised off theground.
Note:For vehicles with dual rear wheels,insert the lug wrench extension into the lugwrench to reach the lug nuts.
F-250 and F-350 Single Rear WheelVehicles
1. Insert the hooked end of the jackhandle into the jack and use the handleto slide the jack under the vehicle.
2. Position the jack according to thefollowing guides:
Front (4x2)
Front driver side (4x4)
Note:Make sure the jack fits onto the flatarea on the outboard side of the differential.
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Wheels and TiresE142551 E162801 E162802 E162803

1. Slide the notched end of the jackhandle over the release valve and usethe handle to slide the jack under thevehicle. Make sure the valve is closedby turning it clockwise.
2. Position the jack according to thefollowing guides:
Front (4x2): F-350 dual rear wheel
Note:Place the jack directly under theI-beam.
Front driver side (4x4): F-350 dual rearwheel
Note:Make sure the jack fits onto the flatarea on the outboard side of the differentialhousing.
Front passenger side (4x4): F-350 dualrear wheel
Note:View shown from the rear of thevehicle to clearly identify the jack point.
Note:Place the jack directly under the axleand inboard of the radius arm so that thejack clears the radius arm.
Front: F-450 and F-550
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Wheels and TiresE162813 E162814 E162815 E162816