2018 LINCOLN MKX flat tire

light is illuminated, your tires areunder-inflated and need to be inflated to themanufacturer’s recommended tire pressure.Even if the light turns on and a short timelater turns off, your tire pressure still needsto 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 when yourtires need air. It can also warn you in theevent the system is no longer capable offunctioning as intended. See the followingchart for information concerning your tirepressure monitoring system:
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Customer action requiredPossible causeLow tire pressure warning light
Make sure tires are at the proper pressure. See Inflating your tiresin this chapter. After inflating your tires to the manufacturer’srecommended pressure as shown on the Tire Label (located onthe edge of driver’s door or the B-Pillar), the vehicle must be drivenfor at least two minutes over 20 mph (32 km/h) before the lightturns off.
Tire(s) under-inflated
Solid warning lightRepair the damaged road wheel and tire assembly and reinstallit on the vehicle to restore system function. For a description onhow the system functions, see When Your Temporary Spare Tireis Installed in this section.
Spare tire in use
If the tires are properly inflated and the spare tire is not in use butthe light remains on, contact your authorized dealer as soon aspossible.TPMS malfunction
Repair the damaged road wheel and tire assembly and reinstallit on the vehicle to restore system function. For a description onhow the system functions, see When Your Temporary Spare Tireis Installed in this section.
Spare tire in use
Flashing warning light
If the tires are properly inflated and the spare tire is not in use butthe light remains on, contact your authorized dealer as soon aspossible.TPMS malfunction
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When Inflating Your Tires
WARNING
Do not use the tire pressure displayedin the information display as a tirepressure gauge. Failure to follow thisinstruction could result in personal injury ordeath.
When putting air into your tires (such as at agas station or in your garage), the tirepressure monitoring system may not respondimmediately to the air added to your tires.
It may take up to two minutes of driving over20 mph (32 km/h) for the light to turn off afteryou have filled your tires to therecommended inflation pressure.
How Temperature Affects Your TirePressure
The tire pressure monitoring system monitorstire pressure in each pneumatic tire. Whiledriving in a normal manner, a typicalpassenger tire inflation pressure mayincrease about 2–4 psi (14–28 kPa) from acold start situation. If the vehicle is stationary
overnight with the outside temperaturesignificantly lower than the daytimetemperature, the tire pressure may decreaseabout 3 psi (21 kPa) for a drop of 30°F (17°C)in ambient temperature. This lower pressurevalue may 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 tirepressure warning light is on, visually checkeach tire to verify that no tire is flat. If one ormore tires are flat, repair as necessary.Check the air pressure in the road tires. Ifany tire is under-inflated, carefully drive thevehicle to the nearest location where air canbe added to the tires. Inflate all the tires tothe recommended inflation pressure.
CHANGING A ROAD WHEEL (If
Equipped)
WARNINGS
Do not use tire sealants as they maydamage the tire pressure monitoringsystem.
WARNINGS
If the tire pressure monitor sensorbecomes damaged it may not function.
Note:The use of tire sealant may damageyour tire pressure monitoring system andshould only be used in roadsideemergencies. If you must use a sealant, usethe Lincoln Tire Mobility Kit sealant. The tirepressure monitoring system sensor andvalve stem on the wheel must be replacedby an authorized dealer after use of thesealant.
Note:The tire pressure monitoring systemindicator 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 not applythe brake heavily. Instead, graduallydecrease your speed. Hold the steeringwheel firmly and slowly move to a safe placeon the side of the road.
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Have a flat serviced by an authorized dealerin order to prevent damage to the tirepressure monitoring system sensors. SeeTire Pressure Monitoring System (page 369).Replace the spare tire with a road tire assoon as possible. During repairing orreplacing of the flat tire, have an authorizeddealer inspect the tire pressure monitoringsystem sensor for damage.
Dissimilar Spare Wheel and TireAssembly Information
WARNING
Failure to follow these guidelines couldresult in an increased risk of loss ofvehicle control, injury or death.
If you have a dissimilar spare wheel and tire,then it is intended for temporary use only.This means that if you need to use it, youshould replace it as soon as possible with aroad wheel and tire assembly that is thesame size and type as the road tires andwheels that were originally provided by Ford.If the dissimilar spare tire or wheel isdamaged, it should be replaced rather thanrepaired.
A dissimilar spare wheel and tire assemblyis defined as a spare wheel and tire assemblythat is different in brand, size or appearancefrom the road tires and wheels and can beone of three types:
1. T-type mini-spare: This spare tire beginswith the letter T for tire size and may haveTemporary Use Only molded in the sidewall.
2. Full-size dissimilar spare with label onwheel: This spare tire has a label on thewheel that states: THIS WHEEL AND TIREASSEMBLY FOR TEMPORARY USE ONLY.
When driving with one of the dissimilar sparetires listed above, do not:
•Exceed 50 mph (80 km/h).
•Load the vehicle beyond maximumvehicle load rating listed on the SafetyCompliance Label.
•Tow a trailer.
•Use snow chains on the end of thevehicle with the dissimilar spare tire.
•Use more than one dissimilar spare tireat a time.
•Use commercial car washing equipment.
•Try to repair the dissimilar spare tire.
Use of one of the dissimilar spare tires listedabove at any one wheel location can lead toimpairment of the following:
•Handling, stability and brakingperformance.
•Comfort and noise.
•Ground clearance and parking at curbs.
•Winter weather driving capability.
•Wet weather driving capability.
•All-wheel driving capability (if applicable).
3. Full-size dissimilar spare without labelon wheel
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Note:Passengers should not remain in yourvehicle when the vehicle is being jacked.
1. Park on a level surface, set the parkingbrake and activate the hazard flashers.
2. Place the transmission in park (P) andturn the engine off.
3.Block both the front and rear of the wheeldiagonally opposite the flat tire. Forexample, if the left front tire is flat, blockthe right rear wheel.
4. Lift and remove the carpeted load floorpanel to access the mini-spare and jackkit.
5. Remove the steel winged washer nutsecuring the spare tire by turning itcounterclockwise.
6.Remove the spare tire from the spare tirecompartment.
7. Remove plastic wing nut and jack andlug wrench assembly. Detach lug wrenchfrom jack by turning the jack hex nutdrive screw counterclockwise.
8.Loosen each wheel lug nut one-half turncounterclockwise, but do not removethem until the wheel is raised off theground.
9. The vehicle jacking points are depictedby arrows on the underside of the vehicleat the locations shown above.
10. Find the arrows embossed on thevehicle downward flange next to thetire you are changing. Position the jackso that the vehicle downward flangerests in the jack saddle flange betweenthe arrows, as shown above. Raise thevehicle by using the lug wrench to turnthe jack nut clockwise. Once the flat tireis raised above the ground, remove thelug nuts with the lug wrench.
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11.Replace the flat tire with the spare tire,making sure the valve stem is facingoutward. Reinstall the lug nuts until thewheel is snug against the hub. Do notfully tighten the lug nuts until the wheelhas been lowered.
12. Lower the wheel by turning the jackhandle counterclockwise.
13. Remove the jack and fully tighten thelug nuts in the order shown. SeeTechnical Specifications (page 379).
14. Fold up the wrench/jack handle andre-attach to the jack. Re-positionjack/wrench assembly into the originalvehicle position and secure with theplastic wing nut. Make sure the jack isfastened securely before you drive.
15. Unblock the wheel.
Stowing the flat tire
You cannot store the full-sized road wheelin the temporary spare tire well.
1. Find the flat tire retainer strap tuckedinside the jack channel. Lower thecarpeted load floor.
2.Stow the flat tire in the cargo area on theload floor with the wheel facing up.Secure the flat tire with the retainer strapby following the next steps.
3. Locate the rear left side and right sidecargo tie-down rings. Push the loop endof the retainer strap through one cargotie-down ring. Thread the non-loop endthrough the loop.
4. Weave the retainer strap through thewheel openings.
5.Locate the cargo tie-down in the oppositerear corner of the cargo area. Thread theretainer strap though the tie-down andpull tight.
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4
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6.Secure the flat tire by tying a 2-half hitchknot.
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TECHNICAL SPECIFICATIONS
Wheel Lug Nut Torque Specifications
WARNING
When a wheel is installed, always remove any corrosion, dirt or foreign materials present on the mounting surfaces of the wheel or thesurface of the wheel hub, brake drum or brake disc that contacts the wheel. Make sure that any fasteners that attach the rotor to thehub are secured so they do not interfere with the mounting surfaces of the wheel. Installing wheels without correct metal-to-metal contact atthe wheel mounting surfaces can cause the wheel nuts to loosen and the wheel to come off while your vehicle is in motion, resulting in lossof control.
lb.ft (Nm)*Bolt size
162 lb.ft (220 Nm)M14 x 1.5
*Torque specifications are for nut and bolt threads free of dirt and rust. Use only Ford recommended replacement fasteners.
Retighten the lug nuts to the specified torque within 100 miles (160 kilometers) after any wheel disturbance (such as tire rotation, changing aflat tire, wheel removal).
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