2015 FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS Owners Manual

D (Overdrive) with tow/haul on
The tow/haul feature improvestransmission operation when towing atrailer or a heavy load. All transmissiongear ranges are available when usingtow/haul.
To activate tow/haul, press thebutton on the end of thegearshift lever. The TOW HAULindicator light will illuminate in theinstrument cluster.
Tow/haul delays upshifts to reducefrequency of transmission shifting.Tow/haul also provides engine braking inall forward gears when the transmission isin the D (Overdrive) position; this enginebraking will slow the vehicle and assist thedriver in controlling the vehicle whendescending a grade. Depending on drivingconditions and load conditions, thetransmission may downshift, slow thevehicle and control the vehicle speed whendescending a hill, without the acceleratorpedal being pressed. The amount ofdownshift braking provided will vary basedupon the amount the brake pedal ispressed.
Grade braking downshifts occurautomatically when all three of thefollowing occur:
•Positive vehicle acceleration (naturalacceleration from driving on a decline)is sensed.
•Nearly all pressure is released from theaccelerator pedal.
•A minimum amount of time has expiredsince the last grade braking downshift.
Grade braking downshift mode isimmediately exited if the Tow/Haul modeis deactivated or if the accelerator pedalis depressed beyond a minimum threshold.
To deactivate the tow/haul feature andreturn to normal driving mode, press thebutton on the end of the gearshift lever.The TOW HAUL light will no longer beilluminated.
When you shut-off and restart the engine,the transmission will automatically returnto normal D (Overdrive) mode (tow/hauloff).
WARNING
Do not use the tow/haul featurewhen driving in icy or slipperyconditions as the increased enginebraking can cause the rear wheels to slideand the vehicle to swing around with thepossible loss of vehicle control.
3 (Third)
Transmission starts and operates in thirdgear only
Used for improved traction on slipperyroads. Selecting 3 (Third) provides enginebraking.
2 (Second)
Use 2 (Second) to start-up on slipperyroads or to provide additional enginebraking on downgrades.
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1 (First)
•Provides maximum engine braking
•Allows upshifts by moving gearshiftlever
•The transmission will not downshiftinto 1 (First) at high speeds; it willdownshift to a lower gear and thenshift into 1 (First) when the vehiclereaches slower speeds.
Forced downshifts
•Allowed in D (Overdrive) with thetow/haul feature on or off
•Press the accelerator to the floor
•Allows transmission to select anappropriate gear
Brake-Shift Interlock
WARNINGS
Do not drive your vehicle until youverify that the brake lamps areworking.
If your brake lamps are not workingproperly or if you have disconnectedthe vehicle battery cables, thevehicle brake lamps and hazard flashersmay not properly warn traffic of a vehiclebreakdown or approaching danger, whichcan increase the risk of serious injury ordeath. To minimize the risk of serious injuryor death, be aware of your surroundings,use other hazard signaling devices ifavailable, and move the vehicle to a safelocation away from traffic as soon aspossible.
When doing this procedure, you willbe taking the vehicle out of parkwhich means the vehicle can rollfreely. To avoid unwanted vehiclemovement, always fully set the parkingbrake prior to doing this procedure. Usewheel chocks if appropriate.
WARNINGS
If the parking brake is fully released,but the brake warning lamp remainsilluminated, the brakes may not beworking properly. See your authorizeddealer.
Your vehicle is equipped with a brake-shiftinterlock feature that prevents thegearshift lever from being moved from P(Park) unless the brake pedal is pressed.
If you cannot move the gearshift lever outof P (Park) position with the ignition in the4 (on) position and the brake pedalpressed, a malfunction may have occurred.It is possible that a fuse has blown or thevehicle’s brake lamps are not operatingproperly. Refer to Fuses and relays in theRoadside Emergencies chapter. If the fusesand brake lamps are working properly, andthe vehicle still will not shift out of (P)Park, see your authorized dealer for service.
In an emergency, to disable themalfunctioning brake-shift interlockfeature in order to shift the vehicle from P(Park) follow these steps:
1.Apply the parking brake. Turn key tothe lock position, and then remove thekey.
2.Disconnect the negative (black)battery cable from the battery.
3.Insert the key and turn to the offposition. Shift to N (Neutral).
4.Reconnect the negative (black) batterycable to the battery.
5.Start the vehicle.
Note:See your authorized dealer as soonas possible if this procedure is used.
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If Your Vehicle Gets Stuck In Mudor Snow
Note:Do not rock the vehicle if the engineis not at normal operating temperature ordamage to the transmission may occur.
Note:Do not rock the vehicle for more thana minute or damage to the transmission andtires may occur, or the engine may overheat.
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.
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GENERAL INFORMATION
Note:Occasional brake noise is normal. Ifa metal-to-metal, continuous grinding orcontinuous squeal sound is present, thebrake linings may be worn-out and shouldbe inspected by an authorized dealer. If thevehicle has continuous vibration or shudderin the steering wheel while braking, thevehicle should be inspected by anauthorized dealer.
Note:Brake dust may accumulate on thewheels, even under normal drivingconditions. Some dust is inevitable as thebrakes wear and does not contribute tobrake noise. See Cleaning the AlloyWheels (page 87).
See the Instrument Clusterchapter for information on thebrake system warning light.
Wet brakes result in reduced brakingefficiency. Gently press the brake pedal afew times when driving from a car wash orstanding water to dry the brakes.
Brake Over Accelerator
In the event the accelerator pedalbecomes stuck or entrapped, apply steadyand firm pressure to the brake pedal toslow the vehicle and reduce engine power.If you experience this condition, apply thebrakes and bring your vehicle to a safestop. Turn the engine off, shift to positionP and apply the parking brake, and theninspect the accelerator pedal for anyinterferences. If none are found and thecondition persists, have your vehicle towedto the nearest authorized dealer.
Hydraulic brake booster system(Hydroboost or Hydromax)
The Hydroboost and Hydromax systemsreceive fluid pressure from the powersteering pump to provide power assistduring braking.
The Hydromax booster receives backuppressure from the reserve system electricpump whenever the fluid in the powersteering system is not flowing. When theengine is off, the pump will turn on if thebrake pedal is applied, or if the ignition isturned to the on position.
The sound of the pump operating may beheard by the driver, but this is a normalcharacteristic of the system.
The reserve system provides reducedbraking power, so the vehicle should beoperated under these conditions withcaution, and only to seek service repair andremove the vehicle from the roadway.
Note:For Hydromax-equipped vehiclesoperating under normal conditions, the noiseof the fluid flowing through the booster maybe heard whenever the brake is applied. Thiscondition is normal. Vehicle service is notrequired.
If braking performance or pedal responsebecomes very poor, even when the pedalis strongly pressed, it may indicate thepresence of air in the hydraulic system orleakage of fluid. Stop the vehicle safely assoon as possible and seek serviceimmediately.
HINTS ON DRIVING WITH
ANTI-LOCK BRAKES
Note:When the system is operating, thebrake pedal will pulse and may travelfurther. Maintain pressure on the brakepedal. You may also hear a noise from thesystem. This is normal.
The anti-lock braking system will noteliminate the risks when:
•You drive too closely to the vehicle infront of you.
•Your vehicle is hydroplaning.
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•You take corners too fast.
•The road surface is poor.
PARKING BRAKE
WARNING
Always set the parking brake fullyand make sure the transmissionselector lever is placed in position P.Failure to set the parking brake and engagepark could result in vehicle roll-away,property damage or bodily injury. Turn theignition to the lock position and removethe key whenever you leave your vehicle.
Apply the parking brake whenever yourvehicle is parked. Press the pedaldownward to set the parking brake.
The brake warning lamp in theinstrument cluster illuminateswhen the ignition is turned onuntil the parking brake is released.
The parking brake is not recommended tostop a moving vehicle. However, if thenormal brakes fail, the parking brake canbe used to stop your vehicle in anemergency. Since the parking brake appliesonly the transmission mounted parkingbrake assembly, the vehicle's stoppingdistance will increase greatly and thehandling of your vehicle will be adverselyaffected.
To release the parking brake:
1.Press your foot brake pedal firmly.
2.Pull the parking brake release lever.
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PRINCIPLE OF OPERATION
Cruise control lets you maintain a setspeed without keeping your foot on theaccelerator pedal. You can use cruisecontrol when your vehicle speed is greaterthan 20 mph (30 km/h).
USING CRUISE CONTROL
WARNINGS
Do not use cruise control in heavytraffic, on winding roads or when theroad surface is slippery. This couldresult in loss of vehicle control, seriousinjury or death.
When you are going downhill, yourvehicle speed may increase abovethe set speed. The system will notapply the brakes. Change down a gear toassist the system in maintaining the setspeed. Failure to do so could result in lossof vehicle control, serious injury or death.
Note:Cruise control will disengage if yourvehicle speed decreases more than 10 mph(16 km/h) below your set speed whiledriving uphill.
The cruise controls are located on thesteering wheel.
Switching Cruise Control On
Press and release ON.
The indicator will display in theinstrument cluster.
Setting a Speed
1.Accelerate to the desired speed.
2.Press and release SET ACCEL.
3.Take your foot off the acceleratorpedal.
Changing the Set Speed
•Press and hold SET ACCEL to increaseor COAST to decrease the set speed.Release the control when you reachthe desired speed.
•Press and release SET ACCEL toincrease or COAST to decrease. Theset speed will change in approximately1 mph (2 km/h) increments.
•Press the accelerator or brake pedaluntil you reach the desired speed. Pressand release SET ACCEL.
Canceling the Set Speed
Tap the brake pedal. The set speed willnot erase.
Resuming the Set Speed
Press and release RES.
Switching Cruise Control Off
Note:You will erase the set speed if youswitch the system off.
Press and release OFF or switch theignition off.
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LOAD LIMIT
Vehicle Loading - with andwithout a Trailer
This section will guide you in theproper loading of your vehicle,trailer or both, to keep your loadedvehicle weight within its designrating capability, with or withouta trailer. Properly loading yourvehicle will provide maximumreturn of vehicle designperformance. Before loading yourvehicle, familiarize yourself with
the following terms fordetermining your vehicle’s weightratings, with or without a trailer,from the vehicle’s Tire Label orSafety Compliance CertificationLabel:
Base Curb Weight - is the weightof the vehicle including a full tankof fuel and all standardequipment. It does not includepassengers, cargo, or optionalequipment.
Vehicle Curb Weight - is theweight of your new vehicle whenyou picked it up from yourauthorized dealer plus anyaftermarket equipment.
Cargo Weight - includes allweight added to the Base CurbWeight, including cargo andoptional equipment. When towing,trailer tongue load or king pinweight is also part of cargo weight.
GAW (Gross Axle Weight) - isthe total weight placed on eachaxle (front and rear) includingvehicle curb weight and allpayload.
GAWR (Gross Axle WeightRating) - is the maximumallowable weight that can becarried by a single axle (front orrear). These numbers are shownon the Safety ComplianceCertification Label. The label shallbe affixed to either the door hinge
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pillar, door-latch post, or the dooredge that meets the door-latchpost, next to the driver's seatingposition.The total load on eachaxle must never exceed its
Gross Axle Weight Rating.
Note: For trailer towinginformation refer to the RV andTrailer Towing Guide available atan authorized dealer.
GVW (Gross Vehicle Weight) -is the Vehicle Curb Weight, pluscargo, plus passengers.
GVWR (Gross Vehicle WeightRating) - is the maximumallowable weight of the fullyloaded vehicle (including alloptions, equipment, passengersand cargo). It is shown on the
Safety Compliance CertificationLabel. The label shall be affixedto either the door hinge pillar,door-latch post, or the door edgethat meets the door-latch post,next to the driver's seatingposition.The Gross VehicleWeight must never exceed theGross Vehicle Weight Rating.
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