2017 FORD F450 SUPER DUTY brake light

Apply the parking brake whenever yourvehicle is parked. Press the pedaldownward to set the parking brake. Thebrake warning lamp in the instrumentcluster will illuminate and remainsilluminated until the parking brake isreleased.
To release, pull the brake release leverlocated at the lower left side of theinstrument panel.
If you are parking your vehicle on a gradeor with a trailer, press and hold the brakepedal down, then set the parking brake.There may be a little vehicle movement asthe parking brake sets to hold the vehicle'sweight. This is normal and should be noreason for concern. If needed, press andhold the service brake pedal down, thentry reapplying the parking brake. Chock thewheels if required. If the parking brakecannot hold the weight of the vehicle, theparking brake may need to be serviced orthe vehicle may be overloaded.
HILL START ASSIST
WARNINGS
The system does not replace theparking brake. When you leave yourvehicle, always apply the parkingbrake and shift the transmission into park(P) (automatic transmission) or first gear(1) (manual transmission).
You must remain in your vehicle onceyou have activated the system.
During all times, you are responsiblefor controlling your vehicle,supervising the system andintervening, if required.
If the engine is revved excessively, orif a malfunction is detected, thesystem will be deactivated.
The system makes it easier to pull awaywhen your vehicle is on a slope without theneed to use the parking brake.
When the system is active, your vehicle willremain stationary on the slope for two tothree seconds after you release the brakepedal. This allows you time to move yourfoot from the brake to the acceleratorpedal. The brakes release automaticallywhen the engine has sufficient torque toprevent your vehicle from rolling down thegrade. This is an advantage when pullingaway on a slope, for example from a carpark ramp, traffic lights or when reversinguphill into a parking space.
The system will activate automatically onany slope that will cause significant vehiclerollback. For vehicles with a manualtransmission, you can switch this featureoff using the information display. SeeInformation Displays (page 111). Thesystem will remain on or off depending onhow it was last set.
Note:There is no warning lamp to indicatethe system is either on or off.
Note:If your vehicle is equipped with AutoHold, Hill Start Assist will not be availablewhile Auto Hold is active.
Using Hill Start Assist
1. Bring your vehicle to a completestandstill. Keep the brake pedalpressed and select an uphill gear (forexample, first (1) when facing uphill orreverse (R) when facing downhill).
2. If the sensors detect that your vehicleis on a slope, the system will activateautomatically.
3. When you remove your foot from thebrake pedal, your vehicle will remainon the slope without rolling away forabout two or three seconds. This holdtime will automatically be extended ifyou are in the process of driving off.
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Brakes

PRINCIPLE OF OPERATION
The traction control system helps avoiddrive wheel spin and loss of traction.
If your vehicle begins to slide, the systemapplies the brakes to individual wheelsand, when needed, reduces engine powerat the same time. If the wheels spin whenaccelerating on slippery or loose surfaces,the system reduces engine power in orderto increase traction.
USING TRACTION CONTROL
WARNING
The stability and traction controllight illuminates steadily if thesystem detects a failure. Make sureyou did not manually disable the tractioncontrol system using the informationdisplay controls or the switch. If thestability control and traction control lightis still illuminating steadily, have thesystem serviced by an authorized dealerimmediately. Operating your vehicle withthe traction control disabled could lead toan increased risk of loss of vehicle control,vehicle rollover, personal injury and death.
The system automatically turns on eachtime you switch the ignition on.
If your vehicle is stuck in mud or snow,switching traction control off may bebeneficial as this allows the wheels to spin.
Note:When you switch traction control off,stability control remains fully active.
Note:For additional information on thetraction and stability control systems. SeeUsing Stability Control (page 227).
Switching the System Off
When you switch the system off or on, amessage appears in the informationdisplay showing system status.
Use the traction and stability controlswitch on the instrument panel to switchthe system off or on.
The switch illuminates when tractioncontrol is off.
When you place your vehicle intofour-wheel drive low mode the tractioncontrol disables. Traction control resumesfull operation when you put your vehicleback into two-wheel drive mode.
System Indicator Lights andMessages
The stability and traction controllight:
•Temporarily illuminates on enginestart-up.
•Flashes when a driving conditionactivates either of the systems.
•Illuminates if a problem occurs in eitherof the systems.
The stability and traction controloff light temporarily illuminateson engine start-up and stays onwhen you switch the traction controlsystem off.
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Traction ControlE166706 E225465 E225466

PRINCIPLE OF OPERATION
WARNINGS
Vehicle modifications involvingbraking system, aftermarket roofracks, suspension, steering system,tire construction and wheel and tire sizemay change the handling characteristicsof your vehicle and may adversely affectthe performance of the electronic stabilitycontrol system. In addition, installing anystereo loudspeakers may interfere withand adversely affect the electronic stabilitycontrol system. Install any aftermarketstereo loudspeaker as far as possible fromthe front center console, the tunnel, andthe front seats in order to minimize the riskof interfering with the electronic stabilitycontrol sensors. Reducing theeffectiveness of the electronic stabilitycontrol system could lead to an increasedrisk of loss of vehicle control, vehiclerollover, personal injury and death.
Remember that even advancedtechnology cannot defy the laws ofphysics. It’s always possible to losecontrol of a vehicle due to inappropriatedriver input for the conditions. Aggressivedriving on any road condition can causeyou to lose control of your vehicleincreasing the risk of personal injury orproperty damage. Activation of theelectronic stability control system is anindication that at least some of the tireshave exceeded their ability to grip the road;this could reduce the operator’s ability tocontrol the vehicle potentially resulting ina loss of vehicle control, vehicle rollover,personal injury and death. If your electronicstability control system activates, SLOWDOWN.
The system automatically turns on eachtime you switch the ignition on.
If a fault occurs in either the stabilitycontrol or the traction control system, youmay experience the following conditions:
•The stability and traction control lightilluminates steadily.
•The stability control and tractioncontrol systems do not enhance yourvehicle's ability to maintain traction ofthe wheels.
•The Adaptive Steering system (ifequipped) automatically changes thesteering function to a fixed steeringratio. See Steering (page 256).
If a driving condition activates either thestability control or the traction controlsystem you may experience the followingconditions:
•The stability and traction control lightflashes.
•Your vehicle slows down.
•Reduced engine power.
•A vibration in the brake pedal.
•The brake pedal is stiffer than usual.
•If the driving condition is severe andyour foot is not on the brake, the brakepedal may move as the system applieshigher brake force.
The stability control system has severalfeatures built into it to help you maintaincontrol of your vehicle:
Electronic Stability Control
The system enhances your vehicle’s abilityto prevent skids or lateral slides byapplying brakes to one or more of thewheels individually and, if necessary,reducing engine power.
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Stability Control

PRINCIPLE OF OPERATION
WARNINGS
Hill descent control cannot controldescent in all surface conditions andcircumstances, such as ice orextremely steep grades. Hill descentcontrol is a driver assist system and cannotsubstitute for good judgment by the driver.Failure to do so may result in loss of vehiclecontrol, crash or serious injury.
Hill descent control does not providehill hold at zero miles per hour (0kilometers per hour). When stopped,the parking brake must be applied or thevehicle must be placed in P (Park) or itmay roll away.
Hill descent control allows the driver to setand maintain vehicle speed whiledescending steep grades in various surfaceconditions.
Hill descent control can maintain vehiclespeeds on downhill grades between 2 mph(3 km/h) and 12 mph (20 km/h). Above 20mph (32 km/h), the system remainsarmed, but descent speed cannot be setor maintained.
Hill descent control requires a coolingdown interval after a period of sustaineduse. The amount of time that the featurecan remain active before cooling varieswith conditions. The system will provide awarning in the message center and a chimewill sound when the system is about todisengage for cooling. At this time,manually apply the brakes as needed tomaintain descent speed.
USING HILL DESCENT
CONTROL
Press and release the hilldescent button located on theinstrument panel. A light in thecluster will illuminate and a chime willsound when this feature is activated.
To increase descent speed, press theaccelerator pedal until the desired speedis reached. To decrease descent speed,press the brake pedal until the desiredspeed is reached.
Whether accelerating or decelerating, oncethe desired descent speed is reached,remove your feet from the pedals and thechosen vehicle speed will be maintained.
Note:Noise from the ABS pump motor maybe observed during hill descent controloperation. This is a normal characteristic ofthe ABS and should be no reason forconcern.
Hill descent modes
•At speeds below 20 mph (32 km/h):When the Hill Descent Control switchis pressed and Hill Descent Control isactive, the Hill Descent Control telltalewill flash.
•At speeds below 20 mph (32 km/h):When the Hill Descent Control switchis pressed and conditions are notcorrect for hill descent activation, theHill Descent Control system will beenabled, the Hill Descent Controltelltale will be solid and a message willdisplay in the information display.
•At speeds above 20 mph (32 km/h):When the Hill Descent Control switchis pressed, the Hill Descent Controlsystem will be enabled, the telltale inthe cluster will not be illuminated anda message will be displayed in theinformation display.
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Terrain Control (If Equipped)E163957

The controls for using your cruise controlare located on the steering wheel.
Switching the System On
Press and release ON.
The information display showsthe grey indicator light.
The current gap setting and SET alsoshows.
Setting a Speed
1. Accelerate to the desired speed.
2. Press and release SET+. The memorystores the vehicle speed.
3.The information display shows a greenindicator light, current gap setting andthe desired set speed.
4. Take your foot off the acceleratorpedal.
5.A lead vehicle graphic illuminates if thesystem detects a vehicle in front of you.
Note:When adaptive cruise control isactive, the speedometer may vary slightlyfrom the set speed displayed in theinformation display.
Following a Vehicle
WARNINGS
When following a vehicle, yourvehicle does not decelerateautomatically to a stop, nor doesyour vehicle always decelerate quicklyenough to avoid a crash without driverintervention. Always apply the brakes whennecessary. Failing to do so may result in acrash, serious injury or death.
Adaptive cruise control only warnsof vehicles detected by the radarsensor. In some cases there may beno warning or a delayed warning. Alwaysapply the brakes when necessary. Failureto do so may result in a crash, serious injuryor death.
Note:The brakes may emit a sound whenthe adaptive cruise control system is active.
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Cruise Control (If Equipped)E183737 E144529 E233874 E233874

When a vehicle ahead of you enters thesame lane or a slower vehicle is ahead inthe same lane, the vehicle speed adjuststo maintain a preset gap distance. Thedistance setting is adjustable.
The lead vehicle graphic illuminates.
The vehicle maintains a constant distancefrom the vehicle ahead until:
•The vehicle in front of you acceleratesto a speed above the set speed.
•The vehicle in front of you moves outof your lane or out of view.
•The vehicle speed falls below 12 mph(20 km/h).
•You set a new gap distance.
The system applies the brakes to slow thevehicle to maintain a safe distance fromthe vehicle in front. The system appliesonly limited maximum braking. Press thebrake pedal to override the system.
If the system predicts that its maximumbraking level is insufficient, an audiblewarning sounds while the systemcontinues to brake. A red warning barappears on the windshield heads-updisplay. Take immediate action to slow orstop the vehicle.
The system may provide slight temporaryacceleration when you use your driver sidedirectional indicator while following a leadvehicle, to aid in passing the vehicle.
Setting the Gap Distance
Note:It is your responsibility to select a gapappropriate to the driving conditions.
Gap decrease.A
Gap increase.B
Press the gap control to decrease orincrease the distance between your vehicleand the vehicle in front of you.
Bars in the graphic show the selected gapdistance. You can select between four gapsettings.
Note:When you select Tow/Haul Mode,the gap distance is increased slightly.
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Cruise Control (If Equipped)E183739 E233874

ActionCause
Clean the grille surface in front of the radaror remove the object causing the obstruc-tion.
The surface of the radar in the grille is dirtyor obstructed in some way.
Wait a short time. It may take severalminutes for the radar to detect that it is freefrom obstruction.
The surface of the radar in the grille is cleanbut the message remains in the display.
Do not use the system in these conditionsbecause it may not detect any vehiclesahead.
Heavy rain or snow is interfering with theradar signals.
Do not use the system in these conditionsbecause it may not detect any vehiclesahead.
Swirling water, or snow or ice on the surfaceof the road may interfere with the radarsignals.
Wait a short time or switch to normal cruisecontrol.You are in a desert or remote area with noother vehicles and no roadside objects.
Due to the nature of radar technology, it ispossible to get a blockage warning and nothave a blockage. This can happen, forexample, when driving in sparse rural ordesert environments. A false blockedcondition either self clears or clears aftera key cycle.
Switching to Normal CruiseControl
WARNING
Normal cruise control will not brakewhen your vehicle is approachingslower vehicles. Always be aware ofwhich mode you have selected and applythe brakes when necessary.
You can manually change from adaptivecruise control to normal cruise controlthrough the information display. SeeInformation Messages (page 128).
The cruise control indicator lightreplaces the adaptive cruisecontrol indicator light if youselect normal cruise control. The gapsetting does not display, the system doesnot automatically respond to lead vehiclesand automatic braking remains active tomaintain set speed. The system recalls itslast setting when you start your vehicle.
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Cruise Control (If Equipped)E71340

COLLISION WARNING SYSTEM
(If Equipped)
Principle Of Operation (If Equipped)
WARNINGS
This system is an extra driving aid. Itdoes not replace your attention andjudgment, or the need to apply thebrakes. This system does NOTautomatically brake your vehicle. If you failto press the brake pedal when necessary,you may collide with another vehicle.
The collision warning system withbrake support cannot help preventall collisions. Do not rely on thissystem to replace your judgment and theneed to maintain correct distance andspeed.
Note:The system does not detect, warn orrespond to potential collisions with vehiclesto the rear or sides of your vehicle.
Note:The collision warning system is activeat speeds above approximately 5 mph(8 km/h).
Note:The collision warning system will beunavailable if you disable the electronicstability control. See Using StabilityControl (page 227).
The system alerts you of certain collisionrisks. The system's sensor detects yourvehicle's rapid approach to other vehiclestraveling in the same direction as yourvehicle.
When your vehicle rapidly approachesanother vehicle, a red warning light flashesand a tone sounds.
The brake support system assists you inreducing any collision speed bypre-charging the brakes. If the risk ofcollision continues to increases after theaudio-visual warning, the brake supportprepares the brake system for rapidbraking. The system does notautomatically activate the brakes, but ifthe brake pedal is pressed even lightly, thebrakes apply full stopping power.
Using the Collision Warning System
WARNING
The collision warning system’s brakesupport reduces collision speed onlyif you brake your vehicle before anycollision. As in any typical braking situation,you must press your brake pedal.
You can use your information displaycontrol to adjust the collision warningsystem's sensitivity or to turn the systemOn or Off. Your vehicle will rememberthese settings across key cycles. You maychange the collision warning systemsensitivity to any one of three possiblesettings. See General Information (page111).
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Driving AidsE156130 E156131