2017 FORD EXPEDITION EL wheel size

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.
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.
Roll Stability Control
The system enhances your vehicle’s abilityto prevent rollovers by detecting yourvehicle’s roll motion and the rate at whichit changes by applying the brakes to oneor more wheels individually.
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Stability Control

•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 removing 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.
Replace the rear axle lubricant anytimethe rear axle has been submerged in water.Water may have contaminated the rearaxle lubricant, which is not normallychecked or changed unless a leak issuspected or other axle repair is required.
TOWING POINTS (If Equipped)
WARNINGS
Using recovery hooks is dangerousand should only be done by a personfamiliar with proper vehicle recoverysafety practices. Improper use of recoveryhooks may cause hook failure or separationfrom the vehicle and could result in seriousinjury or death.
Always slowly remove the slack fromthe recovery strap prior to pulling.Failure to do so can introducesignificantly higher loads which can causethe recovery hooks to break off, or therecovery strap to fail which can causeserious injury or death.
Never link two straps together witha clevis pin. These heavy metalobjects could become projectiles ifthe strap breaks and can cause seriousinjury or death.
Your vehicle comes equipped withframe-mounted front recovery hooks.These hooks should never have a loadapplied to them greater than the grossvehicle weight rating of your vehicle.
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Towing

GENERAL INFORMATION
Use only approved wheel and tire sizes,using other sizes could damage yourvehicle. If you change the diameter of thetires from that fitted at the factory, thespeedometer may not display the correctspeed. Take your vehicle to an authorizedFord dealer to have the systemreprogrammed. If you intend to change thesize of the wheels from that fitted by themanufacturer, you can check the suitabilitywith an authorized dealer.
Additional information related to thefunctionality and maintenance of your tirescan be found later in this chapter. See TireCare (page 276).
The Ford recommended tire inflationpressures can be found on the Tire Label,which is located on the B-pillar or the edgeof the driver's door. This information canalso be found on the Safety ComplianceCertification Label (affixed to either thedoor hinge pillar, door-latch post, or thedoor edge that meets the door last post;next to the driver’s seating position).
Ford strongly recommends maintainingthese tire pressures at all times. Failure tofollow the tire pressure recommendationscan cause uneven treadwear patterns,reduced fuel economy, and adverselyaffect the way your vehicle handles.
Note:Check and set the tire pressure at theambient temperature in which you areintending to drive your vehicle and when thetires are cold.
Note:Check your tire pressures at leastonce per month.
Set the pressure for your spare tire to thehighest value given for your vehicle and tiresize combination (if equipped).
Notice to utility vehicle and truckowners
WARNINGS
Utility vehicles have a significantlyhigher rollover rate than other typesof vehicles. To reduce the risk ofserious injury or death from a rollover orother crash you must avoid sharp turns andabrupt maneuvers, drive at safe speeds forthe conditions, keep tires inflated to Fordrecommended pressures, never overloador improperly load your vehicle, and makesure every passenger is properly restrained.
In a rollover crash, an unbeltedperson is significantly more likely todie than a person wearing a seat belt.All occupants must wear seat belts andchildren/infants must use appropriaterestraints to minimize the risk of injury orejection.
Do not become overconfident in theability of four-wheel drive vehicles.Although a four-wheel drive vehiclemay accelerate better than a two-wheeldrive vehicle in low traction situations, itwon't stop any faster than two-wheel drivevehicles. Always drive at a safe speed.
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Wheels and TiresE145298

Utility vehicles and trucks handledifferently than passenger cars in thevarious driving conditions that areencountered on streets, highways andoff-road. Utility vehicles and trucks are notdesigned for cornering at speeds as highas passenger cars any more than low-slungsports cars are designed to performsatisfactorily under off-road conditions.
Study your owner's manual and anysupplements for specific information aboutequipment features, instructions for safedriving and additional precautions toreduce the risk of an accident or seriousinjury.
Four-wheel drive system (If Equipped)
WARNING
Do not become overconfident in theability of four-wheel drive vehicles.Although a four-wheel drive vehiclemay accelerate better than a two-wheeldrive vehicle in low traction situations, itwon't stop any faster than two-wheel drivevehicles. Always drive at a safe speed.
A vehicle equipped with four-wheel drive(when selected) has the ability to use allfour wheels to power itself. This increasestraction which may enable you to safelydrive over terrain and road conditions thata conventional two-wheel drive vehiclecannot.
Power is supplied to all four wheelsthrough a transfer case or power transferunit. Four-wheel drive vehicles allow youto select different modes as necessary. Forinformation on transfer case operation andshifting procedures, See Four-WheelDrive (page 165). For information ontransfer case maintenance, SeeMaintenance (page 243). You shouldbecome thoroughly familiar with thisinformation before you operate yourvehicle.
On some four-wheel drive vehicles, theinitial shift from two-wheel to four-wheeldrive while the vehicle is moving can causea momentary clunk and ratcheting sound.These sounds are normal and are notcause for concern.
For four-wheel drive vehicles, a spare tireof a different size other than the tireprovided should never be used. A dissimilarspare tire size (other than the spare tireprovided) or major dissimilar tire sizedbetween the front and rear axles couldcause the four-wheel drive system to stopfunctioning and default to front-wheeldrive. See Using Four-Wheel Drive (page165).
How your vehicle differs fromother vehicles
Sport utility vehicles and trucks can differfrom some other vehicles in a fewnoticeable ways. Your vehicle may be:
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Wheels and Tires

The traction grades, from highestto lowest are AA, A, B, and C. Thegrades represent the tire’s abilityto stop on wet pavement asmeasured under controlledconditions on specifiedgovernment test surfaces ofasphalt and concrete. A tiremarked C may have poor tractionperformance.
Temperature A B C
WARNING
The temperature grade forthis tire is established for atire that is properly inflated andnot overloaded. Excessive speed,underinflation, or excessiveloading, either separately or incombination, can cause heat
buildup and possible tire failure.
The temperature grades are A(the highest), B and C,representing the tire’s resistanceto the generation of heat and itsability to dissipate heat whentested under controlled conditionson a specified indoor laboratorytest wheel. Sustained hightemperature can cause thematerial of the tire to degenerateand reduce tire life, and excessivetemperature can lead to suddentire failure. The grade Ccorresponds to a level ofperformance which all passengercar tires must meet under the
Federal Motor Vehicle SafetyStandard No. 139. Grades B and Arepresent higher levels ofperformance on the laboratorytest wheel than the minimumrequired by law.
Glossary of Tire Terminology
*Tire label: A label showing theoriginal equipment tire sizes,recommended inflation pressureand the maximum weight thevehicle can carry.
*Tire Identification Number(TIN): A number on the sidewallof each tire providing informationabout the tire brand andmanufacturing plant, tire size anddate of manufacture. Also referredto as DOT code.
*Inflation pressure: A measureof the amount of air in a tire.
*Standard load: A class ofP-metric or Metric tires designedto carry a maximum load at setpressure. For example: ForP-Metric tires 35 psi (2.4 bar) andfor Metric 36 psi (2.5 bar).Increasing the inflation pressurebeyond this pressure will notincrease the tire’s load carryingcapability.
*Extra load: A class of P-metricor Metric tires designed to carry aheavier maximum load at 42 psi(2.9 bar). Increasing the inflationpressure beyond this pressure willnot increase the tire’s loadcarrying capability.
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Wheels and Tires

*kPa: Kilopascal, a metric unit ofair pressure.
*PSI: Pounds per square inch, astandard unit of air pressure.
*Cold tire pressure: The tirepressure when the vehicle hasbeen stationary and out of directsunlight for an hour or more andprior to the vehicle being driven for1 mile (1.6 kilometers).
*Recommended inflationpressure: The cold inflationpressure 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 onthe B-pillar or the edge of thedriver's door.
B-pillar: The structural memberat the side of the vehicle behindthe front door.
*Bead area of the tire: Area ofthe tire next to the rim.
* Sidewall of the tire: Areabetween the bead area and thetread.
*Tread area of the tire: Area ofthe perimeter of the tire thatcontacts the road when mountedon the vehicle.
*Rim: The metal support (wheel)for a tire or a tire and tubeassembly upon which the tire
beads are seated.
Information Contained on theTire Sidewall
Both United States and CanadaFederal regulations require tiremanufacturers to placestandardized information on thesidewall of all tires. Thisinformation identifies anddescribes the fundamentalcharacteristics of the tire and alsoprovides a U.S. DOT TireIdentification Number for safetystandard certification and in caseof a recall.
Information on P Type Tires
P215/65R15 95H is an example ofa tire size, load index and speedrating. The definitions of theseitems are listed below. (Note thatthe tire size, load index and speedrating for your vehicle may bedifferent from this example.)
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Wheels and TiresH
I
J
KL
M
A
B
CDEFG
E142543

A.P: Indicates a tire, designatedby the Tire and Rim Association,that may be used for service oncars, sport utility vehicles,minivans and light trucks.Note: Ifyour tire size does not begin witha letter this may mean it isdesignated by either the EuropeanTire and Rim TechnicalOrganization or the Japan TireManufacturing Association.
B.215: Indicates the nominalwidth of the tire in millimetersfrom sidewall edge to sidewalledge. In general, the larger thenumber, the wider the tire.
C.65: Indicates the aspect ratiowhich gives the tire's ratio ofheight to width.
D.R: Indicates a radial type tire.
E.15: Indicates the wheel or rimdiameter in inches. If you changeyour wheel size, you will have topurchase new tires to match thenew wheel diameter.
F.95: Indicates the tire's loadindex. It is an index that relates tohow much weight a tire can carry.You may find this information inyour owner’s manual. If not,contact a local tire dealer.
Note:You may not find thisinformation on all tires because itis not required by federal law.
G.H: Indicates the tire's speedrating. The speed rating denotesthe speed at which a tire isdesigned to be driven for extendedperiods of time under a standardcondition of load and inflationpressure. The tires on your vehiclemay operate at differentconditions for load and inflationpressure. These speed ratings mayneed to be adjusted for thedifference in conditions. Theratings range from 81 mph(130 km/h) to 186 mph(299 km/h). These ratings arelisted in the following chart.
Note:You may not find thisinformation on all tires because itis not required by federal law.
mph ( km/h)Letterrating
81 (130)M
87 (140)N
99 (159)Q
106 (171)R
112 (180)S
118 (190)T
124 (200)U
130 (210)H
149 (240)V
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Wheels and Tires

mph ( km/h)Letterrating
168 (270)W
186 (299)Y
Note:For tires with a maximum
speed capability over 149 mph
(240 km/h), tire manufacturers
sometimes use the letters ZR. For
those with a maximum speed
capability over 186 mph
(299 km/h), tire manufacturers
always use the letters ZR.
H.U.S. DOT Tire IdentificationNumber: This begins with theletters DOT and indicates that thetire meets all federal standards.The next two numbers or lettersare the plant code designatingwhere it was manufactured, thenext two are the tire size code andthe last four numbers representthe week and year the tire wasbuilt. For example, the numbers317 mean the 31st week of 1997.After 2000 the numbers go to fourdigits. For example, 2501 meansthe 25th week of 2001. Thenumbers in between areidentification codes used fortraceability. This information isused to contact customers if a tiredefect requires a recall.
I.M+S or M/S: Mud and Snow, or
AT: All Terrain, or
AS: All Season.
J.Tire Ply Composition andMaterial Used: Indicates thenumber of plies or the number oflayers of rubber-coated fabric inthe tire tread and sidewall. Tiremanufacturers also must indicatethe ply materials in the tire and thesidewall, which include steel,nylon, polyester, and others.
K.Maximum Load: Indicates themaximum load in kilograms andpounds that can be carried by thetire (affixed to either the doorhinge pillar, door-latch post, or thedoor edge that meets thedoor-latch post, next to thedriver's seating position), or TireLabel located on the B-pillar orthe edge of the driver's door.
L.Treadwear, Traction andTemperature Grades:
*Treadwear: The treadweargrade is a comparative ratingbased on the wear rate of the tirewhen tested under controlledconditions on a specifiedgovernment test course. Forexample, a tire graded 150 wouldwear 1½ times as well on thegovernment course as a tiregraded 100.
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Wheels and Tires