2017 FORD F450 SUPER DUTY steering

exhaust system has had sufficient time tocool. Depending on the amount of sootcollected by the diesel particulate filter,ambient temperature and altitude,operator commanded regeneration lastsapproximately 30 minutes.
Operator Commanded Regenerationwith Automatic Regeneration Control(If Equipped)
If your vehicle is operated with significantstationary operation, low speed drivecycles less than 25 mph (40 km/h), shortdrive cycles, drive time less than 15 minutesor the vehicle does not fully warm up,passive and active regeneration may notsufficiently clean the diesel particulatefilter system. You can switch off automaticregeneration until better driving conditionsare available, for example steady highspeed driving. You can then switchautomatic regeneration back on to cleanthe diesel particulate filter.
Switching Automatic RegenerationControl On and Off
To switch operator commandedregeneration on and off, use theinformation display control on the steeringwheel. See General Information (page111). Scroll to the exhaust cleaningmessage and then select Y or N to switchit On or Off.
How to Interrupt or Cancel OperatorCommanded Regeneration
If you need to cancel the operatorcommanded regeneration, pressing thebrake, accelerator or switching the engineoff stops the procedure. Depending on theamount of time you allowed the operatorcommanded regeneration to operate, sootmay not have had sufficient time to be fullyeliminated, but the exhaust system andexhaust gas may still be hot. If you shut
your vehicle off during operatorcommanded regeneration, you may noticeturbo flutter. This is a normal consequencecaused by shutting off a diesel engineduring boosted operation and is considerednormal.
Filter Service and Maintenance
Over time, a slight amount of ash buildsup in the diesel particulate filter, which isnot removed during the regenerationprocess. The filter may need to be removedfor ash cleaning at approximately120,000 mi (190,000 km) or it may needto be replaced with a new orremanufactured part. Actual mileagevaries depending on engine and vehicleoperating conditions. The filter may needto be replaced with a new orremanufactured part at approximately250,000 mi (400,000 km). Actualmileage varies depending on engine andvehicle operating conditions.
If filter service is required, theengine control system warninglamp illuminates in theinformation display.
If there are any issues with thediesel particulate filter system,the engine control systemwarning lamp and a serviceengine soon warning lampilluminate to inform you thatyour vehicle requires service. Have yourvehicle checked as soon as possible.
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Fuel and Refueling

Forced downshifts
•Allowed in drive (D) with the tow/haulfeature on or off.
•Press the accelerator to the floor.
•Allows transmission to select anappropriate gear.
Tow/Haul Mode
WARNING
Do not use the tow/haul featurewhen driving in icy or slipperyconditions as the increased enginebraking can cause the rear wheels to slideand your vehicle to swing around with thepossible loss of vehicle control.
To activate tow/haul, press thebutton on the gearshift leveronce. The TOW HAUL indicatorlight illuminates in the instrument cluster.
The tow/haul feature:
•Delays upshifts to reduce the frequencyof transmission shifting.
•Provides engine braking in all forwardgears, which slows your vehicle andassists you in controlling your vehiclewhen descending a grade.
•Depending on driving conditions andload conditions, may downshift thetransmission, slow your vehicle andcontrol your vehicle speed whendescending a hill, without pressing theaccelerator pedal. The amount ofdownshift braking provided will varybased upon the amount you press thebrake pedal.
The tow/haul feature improvestransmission operation when towing atrailer or a heavy load. All transmissiongear ranges are available when usingtow/haul.
Note:If your vehicle is equipped with theAdaptive Steering System, enabling thetow/haul feature will adjust the steeringresponse. In tow/haul mode the AdaptiveSteering system reduces vehicle sensitivityto steering inputs at higher vehicle speedswhile maintaining the ease of parking andmaneuverability at low speeds. SeeSteering (page 256).
To deactivate the tow/haul feature andreturn to normal driving mode, press thebutton on the gearshift lever whentow/haul is active. The TOW HAUL lightdeactivates. Tow/haul also deactivateswhen you power down your vehicle.
Understanding your SelectShiftAutomatic™ transmission (If Equipped)
Your vehicle is equipped with a SelectShiftAutomatic™ transmission gearshift lever.The SelectShift Automatic transmissiongives you the ability to change gears up ordown (without a clutch) as desired.
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TransmissionE161509 E163184

Automatic Transmission AdaptiveLearning
This feature's design is to increasedurability and provide consistent shift feelover the life of your vehicle. A new vehicleor transmission may have firm shifts, softshifts or both. This operation is normal anddoes not affect function or durability of thetransmission. Over time, the adaptivelearning process fully updates transmissionoperation. Additionally, whenever youdisconnect the battery or install a newbattery, the system must relearn thestrategy.
Brake-Shift Interlock
WARNINGS
Do not drive your vehicle until youverify that the brake lamps areworking.
When doing this procedure, you needto take the transmission out of park(P) which means your vehicle canroll freely. To avoid unwanted vehiclemovement, always fully apply the parkingbrake prior to doing this procedure. Usewheels chocks if appropriate.
If the parking brake is fully released,but the brake warning lamp remainsilluminated, the brakes may not beworking properly. Have your vehiclechecked as soon as possible.
Your vehicle is equipped with a brake-shiftinterlock feature that prevents thegearshift lever from moving from park (P)when the ignition is on and the brake pedalis not pressed.
If you cannot move the gearshift lever outof park (P) position with the ignition is onand the brake pedal pressed, a malfunctionmay have occurred. It is possible that afuse has blown or your vehicle’s brakelamps are not operating properly. SeeFuse Specification Chart (page 312).
If the fuse is not blown and the brakelamps are working properly, the followingprocedure allows you to move the gearshiftlever from park (P):
1. Apply the parking brake. Switch theignition key to 1 (off), then remove thekey.
2. Move the steering column to the fulldown and full rearward position(toward the driver’s seat).
3. Remove the gearshift lever boot.
4. Place fingers into hole where youremoved the gearshift lever boot andpull top half of shroud up and forwardto separate it from the lower half of theshroud. There is a hinge at the forwardedge of the top shroud. Roll the tophalf of the shroud upward on the hingepoint to clear the hazard flasher button,then pull straight rearward toward thedriver’s seat to remove.
5. Remove the top half of the shroud.
6. Remove the three fasteners under thecolumn that secure the lower shroudhalf to the column.
7.Pull the lock lever into the full unlockedposition and remove the lower shroudcover by pulling the lever handlethrough the slot in the cover.
8.Apply the brake. Gently lift the overridedisk and move the gearshift lever intoneutral (N).
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TransmissionE163185

If Shift Delayed Pull Forward appears inthe information display, transfer case geartooth blockage is present. To alleviate thiscondition, place the transmission in aforward gear, move the vehicle forwardapproximately 5 ft (1.5 m), and shift thetransmission back to neutral to allow thetransfer case to complete the range shift.
How Your Vehicle Differs FromOther Vehicles
WARNING
Vehicles with a higher center ofgravity (utility and four-wheel drivevehicles) handle differently thanvehicles with a lower center of gravity(passenger cars). Avoid sharp turns,excessive speed and abrupt steering inthese vehicles. Failure to drive cautiouslyincreases the risk of losing control of yourvehicle, vehicle rollover, personal injury anddeath.
Truck and utility vehicles can differ fromsome other vehicles. Your vehicle may behigher to allow it to travel over roughterrain without getting hung up ordamaging underbody components.
The differences that make your vehicle soversatile also make it handle differentlythan an ordinary passenger car.
Maintain steering wheel control at alltimes, especially in rough terrain. Sincesudden changes in terrain can result inabrupt steering wheel motion, make sureyou grip the steering wheel from theoutside. Do not grip the spokes.
Drive cautiously to avoid vehicle damagefrom concealed objects such as rocks andstumps.
You should either know the terrain orexamine maps of the area before driving.Map out your route before driving in thearea. To maintain steering and brakingcontrol of your vehicle, you must have allfour wheels on the ground and they mustbe rolling, not sliding or spinning.
Driving Off-Road With Truck andUtility Vehicles
Note:On some models, the initial shift fromtwo-wheel drive to four-wheel drive whilethe vehicle is moving can cause somemomentary clunk and ratcheting sounds.This is the front drivetrain coming up tospeed and the automatic locking hubsengaging and is not cause for concern.
Note:Your vehicle may be equipped witha front air dam that can become damaged(due to reduced ground clearance) whentaking your vehicle off-road. This air damcan be taken off by removing 15 bolts.
Four-wheel drive vehicles are speciallyequipped for driving on sand, snow, mudand rough terrain and have operatingcharacteristics that are somewhatdifferent from conventional vehicles, bothon and off the road.
Power is supplied to all four wheelsthrough a transfer case. On four-wheeldrive vehicles, the transfer case allows youto select 4WD when necessary.Information on transfer case operation andshifting procedures can be found in thischapter. Information on transfer casemaintenance can be found in theMaintenance chapter. You should becomethoroughly familiar with this informationbefore you operate your vehicle.
Four-wheel drive (when you select a 4WDmode) uses all four wheels to power thevehicle. This increases traction, enablingyou to drive over terrain and roadconditions that a conventional two-wheeldrive vehicle cannot.
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Four-Wheel Drive (If Equipped)

Basic Operating Principles
•Drive slower in strong crosswinds whichcan affect the normal steeringcharacteristics of your vehicle.
•When driving your vehicle on surfacesmade slippery by loose sand, water,gravel, snow or ice proceed with care.
•Do not use 4H or 4L on dry, hardsurfaced roads. Doing so will produceexcessive noise, increase tire wear andmay damage drive components. 4H or4L modes are only intended forconsistently slippery or loose surfaces.
If Your Vehicle leaves the Road
If your vehicle leaves the road, reduce yourvehicle speed and avoid severe braking.When your vehicle speed has been reducedease your vehicle back onto the road. Donot turn the steering wheel sharply whilereturning your vehicle to the road.
It may be safer to stay on the shoulder ofthe road and slow down gradually beforereturning to the road. You may lose controlif you do not slow down or if you turn thesteering wheel too sharply or abruptly.
It may be less risky to strike small objects,such as freeway reflectors, with minordamage to your vehicle rather thanattempt a sudden return to the road whichcould cause your vehicle to slide sidewaysout of control or roll over. Remember, yoursafety and the safety of others should beyour primary concern.
Emergency Maneuvers
In an unavoidable emergency situationwhere a sudden sharp turn must be made,remember to avoid over-driving yourvehicle (i.e. turn the steering wheel only asrapidly and as far as required to avoid theemergency). Excessive steering can resultin loss of vehicle control. Apply smoothpressure to the accelerator pedal or brakepedal when changes in vehicle speed are
required. Avoid abrupt steering,acceleration and braking. This could resultin an increased risk of vehicle roll over, lossof vehicle control and personal injury. Useall available road surface to bring yourvehicle to a safe direction of travel.
In the event of an emergency stop, avoidskidding the tires and do not attempt anysharp steering wheel movements.
If your vehicle goes from one type ofsurface to another (i.e. from concrete togravel) there will be a change in the wayyour vehicle responds to a maneuver (i.e.steering, acceleration or braking).
Sand
When driving over sand, try to keep all fourwheels on the most solid area of the trail.Avoid reducing the tire pressures but shiftto a lower gear and drive steadily throughthe terrain. Apply the accelerator slowlyand avoid excessive wheel slip.
When driving at slow speeds in deep sandunder high outside temperatures, use a lowgear when possible. Low gear operationwill maximize the engine and transmissioncooling capability.
Avoid driving at excessive speeds, thiscauses vehicle momentum to work againstyou and your vehicle could become stuckto the point that assistance may berequired from another vehicle. Remember,you may be able to back out the way youcame if you proceed with caution.
Mud and Water
Mud
Be cautious of sudden changes in vehiclespeed or direction when you are driving inmud. Even four-wheel drive vehicles canlose traction in slick mud. If your vehicledoes slide, steer in the direction of the slideuntil you regain control of your vehicle.
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Four-Wheel Drive (If Equipped)

Driving on Snow and Ice
WARNING
If you are driving in slipperyconditions that require tire chains orcables, then it is critical that you drivecautiously. Keep speeds down, allow forlonger stopping distances and avoidaggressive steering to reduce the chancesof a loss of vehicle control which can leadto serious injury or death. If the rear end ofyour vehicle slides while cornering, steer inthe direction of the slide until you regaincontrol of your vehicle.
Note:Excessive tire slippage can causetransmission damage.
Four-wheel drive vehicles have advantagesover two-wheel drive vehicles in snow andice but can skid like any other vehicle.Should you start to slide while driving onsnowy or icy roads, turn the steering wheelin the direction of the slide until you regaincontrol.
Avoid sudden applications of power andquick changes of direction on snow andice. Apply the accelerator slowly andsteadily when starting from a full stop.
Avoid sudden braking. Although afour-wheel drive vehicle may acceleratebetter than a two-wheel drive vehicle insnow and ice, it will not stop any faster asbraking occurs at all four wheels. Do notbecome overconfident as to roadconditions.
Make sure you allow sufficient distancebetween you and other vehicles forstopping. Drive slower than usual andconsider using one of the lower gears. Inemergency stopping situations, apply thebrake steadily. Do not pump the brakepedal. See Hints on Driving WithAnti-Lock Brakes (page 222).
If Your Vehicle Gets Stuck In Mud orSnow
WARNING
Do not spin the wheels at over34 mph (55 km/h). The tires may failand injure a passenger or bystander.
If your vehicle gets stuck in mud or snow,it may be rocked out by shifting betweenforward and reverse gears, stoppingbetween shifts in a steady pattern. Presslightly on the accelerator in each gear.
Note:Do not rock your vehicle if the engineis not at normal operating temperature,damage to the transmission may occur.
Note:Do not rock your vehicle for morethan a minute, damage to the transmissionand tires may occur or the engine mayoverheat.
Parking
WARNINGS
If the parking brake is fully released,but the brake warning lamp remainsilluminated, the brakes may not beworking properly. Have your vehiclechecked as soon as possible.
Always set the parking brake andleave your vehicle with thetransmission in park (P).
On some four-wheel drive vehicles, whenthe transfer case is in the N (Neutral)position, the engine and transmission aredisconnected from the rest of the driveline.Therefore, the vehicle is free to roll even ifthe automatic transmission is in P (Park)or the manual transmission is in gear. Donot leave the vehicle unattended with thetransfer case in the N (Neutral) position.Always set the parking brake fully and turnoff the ignition when leaving the vehicle.
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Four-Wheel Drive (If Equipped)

Maintenance and Modifications
The suspension and steering systems onyour vehicle have been designed andtested to provide predictable performancewhether loaded or empty. For this reason,we strongly recommend that you do notmake modifications such as adding orremoving parts (i.e. lift kits or stabilizerbars) or by using replacement parts notequivalent to the original factoryequipment.
We recommend that you use caution whenyour vehicle has either a high load or device(i.e. ladder or luggage racks). Anymodifications to your vehicle that raise thecenter of gravity may cause your vehicleto roll over when there is a loss of vehiclecontrol.
Failure to maintain your vehicle correctlymay void the warranty, increase your repaircost, reduce vehicle performance andoperational capabilities and adverselyaffect you and your passenger's safety. Werecommend you frequently inspect yourvehicle's chassis components when yourvehicle is subject to off road usage.
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Four-Wheel Drive (If Equipped)

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