GENERAL INFORMATION
Use only approved wheel and tire sizes.Using other sizes could damage yourvehicle. If you change the diameter of thetires from what is fitted at the factory, thespeedometer may not display the correctspeed. If you intend to change the size ofthe wheels from what was fitted by themanufacturer, you can check the suitabilitywith your dealer.
Additional information related to thefunctionality and maintenance of your tirescan be found later in this chapter. See TireCare (page 313).
You can find the recommended tireinflation pressures on the Tire Label, whichis on the B-pillar or the edge of the driverdoor. You can also find this information onthe Safety Compliance Certification Label,affixed to either the door hinge pillar,door-latch post, or the door edge thatmeets the door latch post, next to thedriver seating position.
We strongly recommend maintaining thesetire pressures at all times. Failure to followthe tire pressure recommendations cancause uneven treadwear patterns, reducedfuel economy, and adversely affect theway 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.
If your vehicle has a spare tire, set thepressure to the highest value given for yourvehicle and tire size combination.
Notice to Utility Vehicle and TruckOwners
WARNING: Utility vehicles have asignificantly higher rollover rate thanother types of vehicles.
WARNING: Vehicles with a highercenter of gravity (utility and four-wheeldrive vehicles) handle differently thanvehicles with a lower center of gravity(passenger cars). Avoid sharp turns,excessive speed and abrupt steering inthese vehicles. Failure to drive cautiouslyincreases the risk of losing control of yourvehicle, vehicle rollover, personal injuryand death.
WARNING: In a rollover crash, anunbelted person is significantly morelikely to die than a person wearing aseatbelt.
WARNING: Do not becomeoverconfident in the ability of four-wheeldrive vehicles. Although a four-wheeldrive vehicle may accelerate better thana two-wheel drive vehicle in low tractionsituations, it won't stop any faster thantwo-wheel drive vehicles. Always driveat a safe speed.
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.
311
2023 Bronco Sport (CHD) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingWheels and Tires
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 becomeoverconfident in the ability of four-wheeldrive vehicles. Although a four-wheeldrive vehicle may accelerate better thana two-wheel drive vehicle in low tractionsituations, it won't stop any faster thantwo-wheel drive vehicles. Always driveat 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 can enable you to safelydrive over terrain and road conditions thata conventional two-wheel drive vehiclecannot.
On some four-wheel drive vehicles, theinitial shift from two-wheel to four-wheeldrive when the vehicle is moving can causea momentary clunk and ratcheting sound.These sounds are normal and are notcause for concern.
In four-wheel drive vehicles, the size of thespare tire relative to the remaining tires canhave an effect on the four-wheel drivesystem. If there is a significant differencebetween the size of a spare and theremaining tires, four-wheel drivefunctionality could be limited or disabled.
Note:The spare tire is only intended to beused in emergency situations. Replace theroad wheel as soon as possible as extendeduse of a spare wheel can result in vehiclewear. Ensure all four tires are matching inmanufacturer, size, and wear.
How Your Vehicle Differs fromOther Vehicles
Sport utility vehicles and trucks can differfrom some other vehicles in a fewnoticeable ways. Your vehicle can be:
•Higher - to allow higher load carryingcapacity and to allow it to travel overrough terrain without getting stuck ordamaging underbody components.
•Shorter - to give it the capability toapproach inclines and drive over thecrest of a hill without getting stuck ordamaging underbody components. Ashorter wheelbase can make yourvehicle quicker to respond to steeringinputs than a vehicle with a longerwheelbase.
•Narrower - to provide greatermaneuverability in tight spaces,particularly in off-road use.
As a result of the above dimensionaldifferences, sport utility vehicles and trucksoften have a higher center of gravity and agreater difference in center of gravitybetween the loaded and unloadedcondition. These differences that makeyour vehicle so versatile, also make ithandle differently than an ordinarypassenger car.
312
2023 Bronco Sport (CHD) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingWheels and Tires
TIRE CARE
Information About UniformTire Quality Grading
Tire Quality Grades apply to newpneumatic passenger car tires.The Quality grades can be foundwhere applicable on the tiresidewall between tread shoulderand maximum section width. Forexample: Treadwear 200Traction AA Temperature A.
These Tire Quality Grades aredetermined by standards that theUnited States Department ofTransportation has set.
Tire Quality Grades apply to newpneumatic passenger car tires.They do not apply to deep tread,winter-type snow tires,space-saver or temporary usespare tires, light truck or LT typetires, tires with nominal rimdiameters of 10 to 12 inches orlimited production tires as definedin Title 49 Code of FederalRegulations Part 575.104 (c)(2).
U.S. Department ofTransportation Tire qualitygrades: The U.S. Department ofTransportation requires us to giveyou the following informationabout tire grades exactly as thegovernment has written it.
Treadwear
The treadwear grade is acomparative rating based on thewear rate of the tire when testedunder controlled conditions on aspecified government test course.For example, a tire graded 150would wear 1½ times as well onthe government course as a tiregraded 100. The relativeperformance of tires dependsupon the actual conditions of theiruse, however, and may depart
significantly from the norm due tovariations in driving habits, servicepractices, and differences in roadcharacteristics and climate.
Traction AA A B C
WARNING: The tractiongrade assigned to this tire isbased on straight-ahead brakingtraction tests, and does notinclude acceleration, cornering,hydroplaning or peak tractioncharacteristics.
313
2023 Bronco Sport (CHD) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingWheels and TiresE142542
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: Thetemperature grade for this tire isestablished for a tire that isproperly inflated and notoverloaded. Excessive speed,underinflation, or excessiveloading, either separately or incombination, can cause heatbuildup 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 tires 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.
314
2023 Bronco Sport (CHD) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingWheels 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 mi (1.6 km).
*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 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.)
315
2023 Bronco Sport (CHD) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingWheels and TiresHIJKLMABCDEFGE142543
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.
Speed ratingLetterrating
81 mph (130 km/h)M
87 mph (140 km/h)N
99 mph (159 km/h)Q
106 mph (171 km/h)R
112 mph (180 km/h)S
118 mph (190 km/h)T
124 mph (200 km/h)U
130 mph (210 km/h)H
149 mph (240 km/h)V
316
2023 Bronco Sport (CHD) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingWheels and Tires
Speed ratingLetterrating
168 mph (270 km/h)W
186 mph (299 km/h)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 (TIN): This begins withthe letters DOT and indicates thatthe tire meets all federalstandards. The next two numbersor letters are the plant codedesignating where it wasmanufactured, the next two arethe tire size code and the last fournumbers represent the week andyear the tire was built. Forexample, the numbers 317 meanthe 31st week of 1997. After 2000,the numbers go to four digits. Forexample, 2501 means the 25thweek of 2001. The numbers inbetween are identification codesused for traceability. Thisinformation is used to contactcustomers if a tire defect requiresa 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. See the 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), for the correct tirepressure for your vehicle.
L.Treadwear, Traction andTemperature Grades:
*Treadwear The treadwear gradeis a comparative rating based onthe wear rate of the tire whentested under controlled conditionson a specified government testcourse. For example, a tire graded150 would wear one and one-halftimes as well on the governmentcourse as a tire graded 100.
317
2023 Bronco Sport (CHD) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingWheels and Tires
*Traction: The traction grades,from highest to lowest are AA, A,B, and C. The grades represent thetire's ability to stop on wetpavement as measured undercontrolled conditions on specifiedgovernment test surfaces ofasphalt and concrete. A tiremarked C may have poor tractionperformance.
*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 which islocated on the B-Pillar or the edgeof the driver’s door. The coldinflation pressure should never beset lower than the recommended
pressure on 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 aredescribed 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.
318
2023 Bronco Sport (CHD) Canada/United States of America, enUSA, Edition date: 202208, First-PrintingWheels and TiresABCBDE142544