2016 FORD F450 SUPER DUTY light

*Temperature: The temperaturegrades are A (the highest), B andC, representing the tire'sresistance to the generation ofheat and its ability to dissipateheat when tested under controlledconditions on a specified indoorlaboratory test wheel.
M.Maximum InflationPressure: Indicates the tiremanufacturers' maximumpermissible pressure or thepressure at which the maximumload can be carried by the tire. Thispressure is normally higher thanthe vehicle manufacturer'srecommended cold inflationpressure which can be found onthe Safety ComplianceCertification Label (affixed toeither the door hinge pillar,door-latch post, or the door edgethat meets the door-latch post,next to the driver's seatingposition), or Tire Label located onthe B-pillar or the edge of thedriver's door. The cold inflationpressure should never be set lowerthan the recommended pressureon the vehicle label.
The tire suppliers may haveadditional markings, notes orwarnings such as standard loador radial tubeless.
Additional InformationContained on the Tire Sidewallfor LT Type Tires
Note:Tire Quality Grades do notapply to this type of tire.
LT type tires have some additionalinformation beyond those of Ptype tires. These differences are
described below.
A.LT: Indicates a tire, designatedby the Tire and Rim Association,that is intended for service on lighttrucks.
B.Load Range and LoadInflation Limits: Indicates thetire's load-carrying capabilitiesand its inflation limits.
C.Maximum Load Dual lb (kg)at psi (kPa) cold: Indicates themaximum load and tire pressurewhen the tire is used as a dual;defined as four tires on the rearaxle (a total of six or more tires onthe vehicle).
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D.Maximum Load Single lb(kg) at psi (kPa) cold: Indicatesthe maximum load and tirepressure when the tire is used asa single; defined as two tires(total) on the rear axle.
Information on T Type Tires
T145/80D16 is an example of atire size.
Note:The temporary tire size foryour vehicle may be different fromthis example. Tire Quality Gradesdo not apply to this type of tire.
T type tires have some additionalinformation beyond those of Ptype tires. These differences aredescribed below:
A.T: Indicates a type of tire,designated by the Tire and RimAssociation, that is intended fortemporary service on cars, sportutility vehicles, minivans and lighttrucks.
B.145: Indicates the nominalwidth of the tire in millimetersfrom sidewall edge to sidewalledge. In general, the larger thenumber, the wider the tire.
C.80: Indicates the aspect ratiowhich gives the tire's ratio ofheight to width. Numbers of 70 orlower indicate a short sidewall.
D.D: Indicates a diagonal type tire.
R: Indicates a radial type tire.
E.16: Indicates the wheel or rimdiameter in inches. If you changeyour wheel size, you will have topurchase new tires to match thenew wheel diameter.
Location of the Tire Label
You will find a Tire Labelcontaining tire inflation pressureby tire size and other importantinformation located on the B-Pillaror the edge of the driver's door.
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Note:Do not reduce tire pressureto change the ride characteristicsof the vehicle. If you do notmaintain the inflation pressure atthe levels specified by Ford, yourvehicle may experience a conditionknown as shimmy. Shimmy is asevere vibration and oscillation inthe steering wheel after the vehicletravels over a bump or dip in theroad that does not dampen out byitself. Shimmy may result fromsignificant under-inflation of thetires, improper tires (load range,size, or type), or vehiclemodifications such as lift-kits. Inthe event that your vehicleexperiences shimmy, you shouldslowly reduce speed by either liftingoff the accelerator pedal or lightlyapplying the brakes. The shimmywill cease as the vehicle speeddecreases.
Maximum Inflation Pressure isthe tire manufacturer's maximumpermissible pressure and thepressure at which the maximumload can be carried by the tire. Thispressure is normally higher thanthe manufacturer’s recommendedcold inflation pressure which canbe found on the SafetyCompliance Certification Label(affixed to either the door hingepillar, door-latch post, or the dooredge that meets the door-latchpost, next to the driver's seatingposition), or Tire Label located on
the B-pillar or the edge of thedriver's door. The cold inflationpressure should never be set lowerthan the recommended pressureon the Safety ComplianceCertification Label or Tire Label.
When weather temperaturechanges occur, tire inflationpressures also change. A 10°F(6°C) temperature drop cancause a corresponding drop of 1psi (7 kPa) in inflation pressure.Check your tire pressuresfrequently and adjust them to theproper pressure which can befound on the Safety ComplianceCertification Label or Tire Label.
To check the pressure in yourtire(s):
1. Make sure the tires are cool,meaning they are not hot fromdriving even a mile.
Note:If you are checking tirepressure when the tire is hot, (forexample, driven more than 1 mile[1.6 kilometers]), never bleed orreduce air pressure. The tires arehot from driving and it is normal forpressures to increase aboverecommended cold pressures. Ahot tire at or below recommendedcold inflation pressure could besignificantly under-inflated.
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Note:If you have to drive adistance to get air for your tire(s),check and record the tire pressurefirst and add the appropriate airpressure when you get to thepump. It is normal for tires to heatup and the air pressure inside to goup as you drive.
2. Remove the cap from the valveon one tire, then firmly press thetire gauge onto the valve andmeasure the pressure.
3. Add enough air to reach therecommended air pressure.
Note:If you overfill the tire, releaseair by pressing on the metal stemin the center of the valve. Thenrecheck the pressure with your tiregauge.
4. Replace the valve cap.
5. Repeat this procedure for eachtire, including the spare.
Note:Some spare tires operate ata higher inflation pressure than theother tires. For T type mini-sparetires, (see the Dissimilar sparewheel and tire assemblyinformation for a description. Storeand maintain at 60 psi (4.15 bar).For full-size and dissimilar sparetires, see the Dissimilar spare wheeland tire assembly information fora description. Store and maintainat the higher of the front and rearinflation pressure as shown on theSafety Compliance CertificationLabel or Tire Label.
6. Visually inspect the tires tomake sure there are no nails orother objects embedded thatcould poke a hole in the tire andcause an air leak.
7. Check the sidewalls to makesure there are no gouges, cuts orbulges.
Tire Inflation Information
WARNING
An inflated tire and rim canbe very dangerous ifimproperly used, serviced ormaintained. To reduce the risk ofserious injury, never attempt tore-inflate a tire which has been runflat or seriously under-inflatedwithout first removing the tire
from the wheel assembly forinspection. Do not attempt to addair to tires or replace tires orwheels without first takingprecautions to protect personsand property.
All tires with Steel Carcass Plies(if equipped):
This type of tire utilizes steel cordsin the sidewalls. As such, theycannot be treated like normal lighttruck tires. Tire service, includingadjusting tire pressure, must beperformed by personnel trained,supervised and equippedaccording to Federal OccupationalSafety and Health Administrationregulations. For example, during
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Changing Tires With a TirePressure Monitoring System
Note:Each road tire is equipped with a tirepressure sensor located inside the wheeland tire assembly cavity. The pressuresensor is attached to the valve stem. Thepressure sensor is covered by the tire and isnot visible unless the tire is removed. Takecare when changing the tire to avoiddamaging the sensor.
You should always have your tires servicedby an authorized dealer.
Check the tire pressure periodically (atleast monthly) using an accurate tiregauge. See Inflating Your Tires in thischapter.
Understanding Your Tire PressureMonitoring System
The tire pressure monitoring systemmeasures pressure in your four road tiresand sends the tire pressure readings toyour vehicle. The low tire pressure warninglight will turn on if the tire pressure issignificantly low. Once the light isilluminated, your tires are under-inflatedand need to be inflated to themanufacturer’s recommended tirepressure. Even if the light turns on and ashort time later turns off, your tire pressurestill needs to be checked.
When Your Temporary Spare Tire isInstalled
When one of your road tires needs to bereplaced with the temporary spare, thesystem will continue to identify an issue toremind you that the damaged road wheeland tire assembly needs to be repaired andput back on your vehicle.
To restore the full function of the tirepressure monitoring system, have thedamaged road wheel and tire assemblyrepaired and remounted on your vehicle.
When You Believe Your System is NotOperating Properly
The main function of the tire pressuremonitoring system is to warn you whenyour tires need air. It can also warn you inthe event the system is no longer capableof functioning as intended. See thefollowing chart for information concerningyour tire pressure monitoring system:
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Customer action requiredPossible causeLow tire pressurewarning light
Make sure tires are at the proper pres-sure. See Inflating your tires in thischapter. After inflating your tires to themanufacturer’s recommended pressureas shown on the Tire Label (located onthe edge of driver’s door or the B-Pillar),the vehicle must be driven for at leasttwo minutes over 20 mph (32 km/h)before the light turns off.
Tire(s) under-inflatedSolid warning light
Repair the damaged road wheel and tireassembly and reinstall it on the vehicleto restore system function. For adescription on how the system functions,see When your temporary spare tireis installed in this section.
Spare tire in use
If the tires are properly inflated and thespare tire is not in use but the lightremains on, contact your authorizeddealer as soon as possible.
Tire pressure monitoringsystem malfunction
On vehicles with different front and reartire pressures, the system must beretrained following every tire rotation.See Tire Care (page 267).
Tire rotation withoutsensor training
Repair the damaged road wheel and tireassembly and reinstall it on the vehicleto restore system function. For adescription on how the system functions,see When your temporary spare tireis installed in this section.
Spare tire in useFlashing warninglight
If the tires are properly inflated and thespare tire is not in use but the lightremains on, contact your authorizeddealer as soon as possible.
Tire pressure monitoringsystem malfunction
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When Inflating Your Tires
When putting air into your tires (such as ata gas station or in your garage), the tirepressure monitoring system may notrespond immediately to the air added toyour tires.
It may take up to two minutes of drivingover 20 mph (32 km/h) for the light to turnoff after you have filled your tires to therecommended inflation pressure.
How Temperature Affects Your TirePressure
The tire pressure monitoring systemmonitors tire pressure in each pneumatictire. While driving in a normal manner, atypical passenger tire inflation pressuremay increase about 2 to 4 psi (14 to 28kPa) from a cold start situation. If thevehicle is stationary overnight with theoutside temperature significantly lowerthan the daytime temperature, the tirepressure may decrease about 3 psi (21kPa) for a drop of 30°F (17°C) in ambienttemperature. This lower pressure valuemay be detected by the tire pressuremonitoring system as being significantlylower than the recommended inflationpressure and activate the system warninglight for low tire pressure.
If the low tire pressure warning light is on,visually check each tire to verify that no tireis flat. If one or more tires are flat, repair asnecessary. Check the air pressure in theroad tires. If any tire is under-inflated,carefully drive the vehicle to the nearestlocation where air can be added to thetires. Inflate all the tires to therecommended inflation pressure.
Tire Pressure Monitoring System ResetProcedure
WARNING
To determine the requiredpressure(s) for your vehicle, see theSafety Compliance CertificationLabel (affixed to either the door hingepillar, door-latch post, or the door edgethat meets the door-latch post, next to thedriver's seating position), or Tire Labellocated on the B-Pillar or the edge of thedriver's door.
Note:You need to perform the tire pressuremonitoring system reset procedure aftereach tire rotation on vehicles that requiredifferent recommended tire pressures in thefront tires as compared to the rear tires.
Overview
To provide the vehicle's load carryingcapability, some vehicles require differentrecommended tire pressures in the fronttires as compared to the rear tires. The tirepressure monitoring system equipped onthese vehicles is designed to illuminate thelow tire pressure warning light at twodifferent pressures; one for the front tiresand one for the rear tires.
Since tires need to be rotated to provideconsistent performance and maximum tirelife, the tire pressure monitoring systemneeds to know when the tires are rotatedto determine which set of tires are on thefront and which are on the rear. With thisinformation, the system can detect andproperly warn of low tire pressures.
System reset tips:
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11.Set all four tires to the recommendedair pressure as indicated on theSafety Compliance CertificationLabel (affixed to either the door hingepillar, door-latch post, or the dooredge that meets the door-latch post,next to the driver's seating position)or Tire Label located on the B-Pillaror the edge of the driver's door.
CHANGING A ROAD WHEEL
WARNINGS
The use of tire sealant may damageyour tire pressure monitoring systemand should only be used in roadsideemergencies. If you must use a sealant, theFord Tire Mobility Kit sealant should beused. The tire pressure monitoring systemsensor and valve stem on the wheel mustbe replaced by an authorized dealer afteruse of the sealant.
If the tire pressure monitor sensorbecomes damaged, it will no longerfunction. See Tire PressureMonitoring System (page 284).
Note:If your vehicle is equipped with thetire pressure monitoring system, theindicator light will illuminate when the sparetire is in use. To restore the full function ofthe monitoring system, all road wheelsequipped with tire pressure monitoringsensors must be mounted on the vehicle.
If you get a flat tire while driving, do notapply the brake heavily. Instead, graduallydecrease your speed. Hold the steeringwheel firmly and slowly move to a safeplace on the side of the road.
If your vehicle is equipped with the tirepressure monitoring system, have a flatserviced by an authorized dealer in orderto prevent damage to the system sensors.See Tire Pressure Monitoring System(page 284). Replace the spare tire with aroad tire as soon as possible. Duringrepairing or replacing of the flat tire, havethe authorized dealer inspect the systemsensor for damage.
Dissimilar Spare Wheel and TireAssembly Information
WARNING
Failure to follow these guidelinescould result in an increased risk ofloss of vehicle control, injury or death.
If you have a dissimilar spare wheel andtire, then it is intended for temporary useonly. This means that if you need to use it,you should replace it as soon as possiblewith a road wheel and tire assembly thatis the same size and type as the road tiresand wheels that were originally providedby Ford. If the dissimilar spare tire or wheelis damaged, it should be replaced ratherthan repaired.
A dissimilar spare wheel and tire assemblyis defined as a spare wheel and tireassembly that is different in brand, size orappearance from the road tires and wheelsand can be one of three types:
1.T-type mini-spare: This spare tirebegins with the letter T for tire size andmay have Temporary Use Only molded inthe sidewall.
2.Full-size dissimilar spare with labelon wheel: This spare tire has a label onthe wheel that states: THIS WHEEL ANDTIRE ASSEMBLY FOR TEMPORARY USEONLY
When driving with one of the dissimilarspare tires listed above, do not:
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