2016 FORD F250 SUPER DUTY trailer

If the message only displays with a trailerconnected, the problem is with the trailerwiring. Consult your trailer dealer forassistance. This can be a short to ground(such as a chaffed wire), short to voltage(such as a pulled pin on trailer emergencybreakaway battery) or the trailer brakesmay be drawing too much current.
Points to Remember
Note:Do not attempt removal of the trailerbrake controller without consulting theWorkshop Manual. Damage to the unit mayresult.
•Adjust gain setting before using thetrailer brake controller.
•Adjust gain setting, using the procedureabove, whenever road, weather, traileror vehicle loading conditions changefrom when the gain was initially set.
•Only use the manual control lever forproper adjustment of the gain duringtrailer setup. Misuse, such asapplication during trailer sway, couldcause instability of trailer or towvehicle.
•Avoid towing in adverse weatherconditions. The trailer brake controllerdoes not provide anti-lock control ofthe trailer wheels. Trailer wheels canlock up on slippery surfaces, resultingin reduced stability of trailer and towvehicle.
•The trailer brake controller is equippedwith a feature that reduces output atvehicle speeds below 11 mph (18 km/h)so trailer and vehicle braking is not jerkyor harsh. This feature is only activewhen applying the brakes using yourvehicle's brake pedal, not thecontroller.
•The controller interacts with the brakecontrol system and powertrain controlsystem of your vehicle to provide thebest performance on different roadconditions.
•Your vehicle's brake system and thetrailer brake system workindependently of each other. Changingthe gain setting on the controller doesnot affect the operation of yourvehicle's brakes.
•When you switch the engine off, thecontroller output is disabled and thedisplay and module shut down.
Trailer Lamps
WARNING
Never connect any trailer lamp wiringto the vehicle's tail lamp wiring; thismay damage the electrical systemresulting in fire. Contact your authorizeddealer as soon as possible for assistancein proper trailer tow wiring installation.Additional electrical equipment may berequired.
Trailer lamps are required on most towedvehicles. Make sure all running lights, brakelights, turn signals and hazard lights areworking.
Before Towing a Trailer
Practice turning, stopping and backing upto get the feel of your vehicle-trailercombination before starting on a trip.When turning, make wider turns so thetrailer wheels clear curbs and otherobstacles.
When Towing a Trailer
•Do not drive faster than 70 mph (113km/h) during the first 500 miles (800kilometers).
•Do not make full-throttle starts.
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Towing

•Check your hitch, electrical connectionsand trailer wheel lug nuts thoroughlyafter you have traveled 50 miles (80kilometers).
•When stopped in congested or heavytraffic during hot weather, place thegearshift in position P to aid engine andtransmission cooling and to help A/Cperformance.
•Turn off the speed control with heavyloads or in hilly terrain. The speedcontrol may turn off automaticallywhen you are towing on long, steepgrades.
•Shift to a lower gear when driving downa long or steep hill. Do not apply thebrakes continuously, as they mayoverheat and become less effective.
•If your transmission is equipped with aGrade Assist or Tow/Haul feature, usethis feature when towing. This providesengine braking and helps eliminateexcessive transmission shifting foroptimum fuel economy andtransmission cooling.
•If your vehicle is equipped withAdvanceTrac with RSC, this systemmay turn on during typical corneringmaneuvers with a heavily loaded trailer.This is normal. Turning the corner at aslower speed while towing may reducethis tendency.
•If you are towing a trailer frequently inhot weather, hilly conditions, at thegross combined weight rating (or anycombination of these factors), considerrefilling your rear axle with syntheticgear lubricant (if the axle is not alreadyfilled with it). See Capacities andSpecifications (page 303).
•Allow more distance for stopping witha trailer attached. Anticipate stops andbrake gradually.
•Avoid parking on a grade. However, ifyou must park on a grade:
1. Turn the steering wheel to point yourvehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the automatic transmission inposition P.
4. Place wheel chocks in front and backof the trailer wheels. (Chocks notincluded with vehicle.)
Your vehicle may be equipped with atemporary or conventional spare tire. A"temporary" spare tire is different in size(diameter or width), tread-type(All-Season or All Terrain) or is from adifferent manufacturer than the road tireson your vehicle. Consult information on thetire label or Safety Compliance label forlimitations when using.
Launching or Retrieving a Boat orPersonal Watercraft (PWC)
Note:Disconnect the wiring to the trailerbefore backing the trailer into the water.
Note:Reconnect the wiring to the trailerafter you remove the trailer from the water.
When backing down a ramp during boatlaunching or retrieval:
•Do not allow the static water level torise above the bottom edge of the rearbumper.
•Do not allow waves to break higherthan 6 inches (15 centimeters) abovethe bottom edge of the rear bumper.
Exceeding these limits may allow water toenter vehicle components:
•Causing internal damage to thecomponents.
•Affecting driveability, emissions, andreliability.
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Towing

TOWING THE VEHICLE ON
FOUR WHEELS
Emergency Towing
If your vehicle becomes inoperable(without access to wheel dollies,car-hauling trailer, or flatbed transportvehicle), it can be flat-towed (all wheelson the ground, regardless of the powertrainand transmission configuration) under thefollowing conditions:
•Your vehicle is facing forward fortowing in a forward direction.
•Place the transmission in position N. Ifyou cannot move the transmission intoN, you may need to override it. SeeTransmission (page 151).
•Maximum speed is 35 mph (56 km/h).
•Maximum distance is 50 mi (80 km).
WARNING
If your vehicle has a steering wheellock make sure the ignition is in theaccessory or on position when beingtowed.
Recreational Towing
Note:Put your climate control system inrecirculated air mode to prevent exhaustfumes from entering your vehicle. SeeClimate Control (page 110).
Follow these guidelines if you have a needfor recreational towing, such as towingyour vehicle behind a motorhome. Wedesigned these guidelines to preventdamage to your transmission.
Two-wheel Drive Vehicles andFour-wheel Drive Vehicles Equippedwith an Electronic-shift Transfer Case
Do not tow your vehicle with any wheelson the ground, as vehicle or transmissiondamage may occur. It is recommended totow your vehicle with all four (4) wheelsoff the ground, such as when using acar-hauling trailer. Otherwise, you cannottow your vehicle.
Four-wheel Drive Vehicles Equippedwith a Manual-shift Transfer Case
1. Put the transmission in position N.
2. Put the transfer case in position N.
3.Put the hub locks in the FREE position.Always make sure that both hub locksare set to the same position.
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Towing

BREAKING-IN
You need to break in new tires forapproximately 300 miles (480kilometers). During this time, your vehiclemay exhibit some unusual drivingcharacteristics.
Avoid driving too fast during the first 1000miles (1600 kilometers). Vary your speedfrequently and change up through thegears early. Do not labor the engine.
Do not tow during the first 1000 miles(1600 kilometers).
ECONOMICAL DRIVING
Your fuel economy is affected by severalthings, such as how you drive, theconditions you drive under, and how youmaintain your vehicle.
You may improve your fuel economy bykeeping these things in mind:
•Accelerate and slow down in a smooth,moderate fashion.
•Drive at steady speeds withoutstopping.
•Anticipate stops; slowing down mayeliminate the need to stop.
•Combine errands and minimizestop-and-go driving.
•Close the windows for high-speeddriving.
•Drive at reasonable speeds (travelingat 55 mph [88 km/h] uses 15% lessfuel than traveling at 65 mph [105km/h]).
•Keep the tires properly inflated and useonly the recommended size.
•Use the recommended engine oil.
•Perform all regularly scheduledmaintenance.
Avoid these actions; they reduce your fueleconomy:
•Sudden accelerations or hardaccelerations.
•Revving the engine before turning it off.
•Idle for periods longer than one minute.
•Warm up your vehicle on coldmornings.
•Use the air conditioner or frontdefroster.
•Use the speed control in hilly terrain.
•Rest your foot on the brake pedal whiledriving.
•Drive a heavily loaded vehicle or tow atrailer.
•Carry unnecessary weight(approximately 1 mpg [0.4 km/L] islost for every 400 lb [180 kilogram] ofweight carried).
•Driving with the wheels out ofalignment.
Conditions
•Heavily loading a vehicle or towing atrailer may reduce fuel economy at anyspeed.
•Adding certain accessories to yourvehicle (for example bug deflectors,rollbars, light bars, running boards, skiracks or luggage racks) may reducefuel economy.
•To maximize the fuel economy, drivewith the tonneau cover installed (ifequipped).
•Using fuel blended with alcohol maylower fuel economy.
•Fuel economy may decrease with lowertemperatures during the first 8–10miles (12–16 kilometers) of driving.
•Driving on flat terrain offers improvedfuel economy as compared to drivingon hilly terrain.
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Driving Hints

ROADSIDE ASSISTANCE
Vehicles Sold in the United States:Getting Roadside Assistance
To fully assist you should you have avehicle concern, Ford Motor Companyoffers a complimentary roadsideassistance program. This program isseparate from the New Vehicle LimitedWarranty. The service is available:
•24 hours a day, seven days a week.
•For the coverage period listed on theRoadside Assistance Card included inyour Owner's Manual portfolio.
Roadside Assistance covers:
•A flat tire change with a good spare, ifprovided with the vehicle (exceptvehicles supplied with a tire inflationkit).
•Battery jump start.
•Lock-out assistance (key replacementcost is the customer's responsibility).
•Fuel delivery — independent servicecontractors, if not prohibited by state,local or municipal law, shall deliver upto 2 gal (7.6 L) of gasoline or 5 gal(18.9 L) of diesel fuel to a disabledvehicle. Roadside Assistance limits fueldelivery service to two no-chargeoccurrences within a 12-month period.
•Winch out — available within 100 ft(30.5 m) of a paved or countymaintained road, no recoveries.
•Towing — independent servicecontractors, if not prohibited by state,local or municipal law, shall tow Fordeligible vehicles to an authorized dealerwithin 35 mi (56 km) of thedisablement location or to the nearest
authorized dealer. If a memberrequests a tow to an authorized dealerthat is more than 35 mi (56 km) fromthe disablement location, the membershall be responsible for any mileagecosts in excess of 35 mi (56 km).
Roadside Assistance includes up to $200for a towed trailer if the disabled eligiblevehicle requires service at the nearestauthorized dealer. If the towing vehicle isoperational but the trailer is not, then thetrailer does not qualify for any roadsideservices.
Vehicles Sold in the United States:Using Roadside Assistance
Complete the roadside assistanceidentification card and place it in yourwallet for quick reference. This card is inthe owner's information portfolio in theglove compartment.
United States Ford vehicle customers whorequire Roadside Assistance, call1-800-241-3673.
If you need to arrange roadside assistancefor yourself, Ford Motor Companyreimburses a reasonable amount fortowing to the nearest dealership within35 mi (56 km). To obtain reimbursementinformation, United States Ford vehiclecustomers call 1-800-241-3673.Customers need to submit their originalreceipts.
Vehicles Sold in Canada: GettingRoadside Assistance
Canadian customers who require roadsideassistance, call 1-800-665-2006.
Vehicles Sold in Canada: UsingRoadside Assistance
For your convenience, you may completethe roadside assistance identification cardfound in the centerfold of your warrantyguide and retain for future reference.
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Roadside Emergencies

Protected componentsFuse amp ratingFuse or relay number
Trailer tow40A*10
Not used—11
Driver smart window motor30A*12
Not used—13
Not used—14
Fuel pump (diesel engine)Diode15
Not used—16
Heated mirror15A**17
Not used—18
Not used—19
Not used—20
Not used—21
Trailer tow electric brake30A*22
Blower motor40A*23
Not used—24
Wipers30A*25
Trailer tow park lamps30A*26
Urea heaters (diesel engine)25A*27
Buss bar—28
Trailer tow park lampsRelay29
A/C clutchRelay30
WipersRelay31
Not used—32
Vehicle power 115A**33
Vehicle power 2 (diesel engine)15A**34
Vehicle power 2 (gas engine)20A**
Vehicle power 310A**35
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Fuses

Protected componentsFuse amp ratingFuse or relay number
Not used—59
Not used—60
Not used—61
Not used—62
Not used—63
Not used—64
Not used—65
Fuel pump20A**66
Not used—67
Fuel pump relay coil10A**68
Not used—69
Trailer tow backup lamp10A**70
Canister vent (gas engine)10A**71
Electronic control module relay coil feedkeep-alive power10A**72
Powertrain control module
Not used—73
Not used—74
Not used—75
Trailer tow backup lampRelay76
Not used—77
Not used—78
Not used—79
Not used—80
Not used—81
Auxiliary power point #220A*82
Auxiliary power point #120A*83
4x4 shift motor30A*84
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Fuses

Protected componentsFuse amp ratingFuse or relay number
Heated/cooled seats30A*85
Anti-lock brake system coil feed25A*86
Auxiliary power point #520A*87
Auxiliary power point #620A*88
Starter motor40A*89
Trailer tow battery charge25A*90
Not used—91
Auxiliary power point #420A*92
Auxiliary power point #320A*93
Auxiliary switch #125A*94
Auxiliary switch #225A*95
Anti-lock brake system pump50A*96
Inverter40A*97
Not used—98
Instrument panel power inverter40A*99
Not used—100
StarterRelay101
Not used—102
Not used—103
Not used—104
Not used—105
Not used—106
Not used—107
*Cartridge fuses
**Mini fuses
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Fuses