If you feel a sudden vibration or ridedisturbance while driving, or you suspectyour tire or vehicle has been damaged,immediately reduce your speed. Drivewith caution until you can safely pull offthe road. Stop and inspect the tires fordamage. If a tire is under-inflated ordamaged, deflate it, remove the wheeland replace it with your spare tire andwheel. If you cannot detect a cause,have the vehicle towed to the nearestrepair facility or tire dealer to have thevehicle inspected.
Tire and Wheel Alignment
A bad jolt from hitting a curb or potholecan cause the front end of your vehicleto become misaligned or cause damageto your tires. If your vehicle seems topull to one side when you are driving,the wheels could be out of alignment.Have an authorized dealer check thewheel alignment periodically.
Wheel misalignment in the front or therear can cause uneven and rapidtreadwear of your tires and should becorrected by an authorized dealer.
INSPECTING THE WHEEL VALVE
STEMS
Check the valve stems for holes, cracks,or cuts that could permit air leakage.
TIRE ROTATION
WARNING: If the tire label showsdifferent tire pressures for the frontand rear tires and the vehicle has atire pressure monitoring system, thenyou need to update the settings forthe system sensors. Always performthe system reset procedure after tirerotation. If you do not reset the system,it may not provide a low tire pressurewarning when necessary.
Rotating your tires at the recommendedinterval will help your tires wear moreevenly, providing better tire performanceand longer tire life.
Note:If your tires show any unevenwear have the alignment checked byan authorized dealer before rotatingtires.
Note:If you have a dissimilar sparewheel and tire assembly, it is intendedfor temporary use only and should notbe used in a tire rotation.
Note:After having your tires rotated,inflation pressure must be checked andadjusted to the vehicle requirements.
Tire Rotation Diagram
Follow the diagram indicating the correcttire locations for rotating the tires.
451
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTire Care
WHAT IS THE TIRE PRESSURE
MONITORING SYSTEM
The tire pressure monitoringsystem measures the vehicle's tirepressures. A warning lampilluminates if one or more tires aresignificantly underinflated or if there is asystem malfunction.
TIRE PRESSURE MONITORING
SYSTEM OVERVIEW
WARNING: Under-inflation is themost common cause of tire failures andmay result in severe tire cracking, treadseparation or blowout, with unexpectedloss of vehicle control and increased riskof injury. Under-inflation increases sidewallflexing and rolling resistance, resulting in
heat buildup and internal damage to thetire. It also may result in unnecessary tirestress, irregular wear, loss of vehiclecontrol and accidents. A tire can lose upto half of its air pressure and not appearto be flat!
WARNING: To determine therequired pressure(s) for your vehicle, seethe Safety Compliance Certification Label(on the door hinge pillar, door-latch postor the door edge that meets the door-latchpost, next to the driver seat) or the TireLabel on the B-Pillar or the edge of thedriver door.
Each tire, including the spare (if provided),should be checked monthly when cold andinflated to the inflation pressurerecommended by the vehicle manufactureron the vehicle placard or tire inflationpressure label. (If your vehicle has tires of adifferent size than the size indicated on thevehicle placard or tire inflation pressure label,you should determine the proper tire inflationpressure for those tires).
As an added safety feature, your vehicle hasbeen equipped with a Tire PressureMonitoring System (TPMS) that illuminates alow tire pressure telltale when one or moreof your tires is significantly under-inflated.Accordingly, when the low tire pressuretelltale illuminates, you should stop andcheck your tires as soon as possible, andinflate them to the proper pressure. Drivingon a significantly under-inflated tire causesthe tire to overheat and can lead to tirefailure. Under-inflation also reduces fuelefficiency and tire tread life, and may affectthe vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitutefor proper tire maintenance, and it is thedriver’s responsibility to maintain correct tirepressure, even if under-inflation has notreached the level to trigger illumination ofthe TPMS low tire pressure telltale.
453
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTire Pressure Monitoring SystemE139232
Your vehicle has also been equipped with aTPMS malfunction indicator to indicate whenthe system is not operating properly. TheTPMS malfunction indicator is combined withthe low tire pressure telltale. When thesystem detects a malfunction, the telltale willflash for approximately one minute and thenremain continuously illuminated. Thissequence will continue upon subsequentvehicle start-ups as long as the malfunctionexists.
When the malfunction indicator is illuminated,the system may not be able to detect orsignal low tire pressure as intended. TPMSmalfunctions may occur for a variety ofreasons, including the installation ofreplacement or alternate tires or wheels onthe vehicle that prevent the TPMS fromfunctioning properly. Always check the TPMSmalfunction telltale after replacing one ormore tires or wheels on your vehicle toensure that the replacement or alternate tiresand wheels allow the TPMS to continue tofunction properly.
WARNING: Changes or modificationsnot expressively approved by the partyresponsible for compliance could void theuser's authority to operate the equipment.The term "IC:" before the radio certificationnumber only signifies that Industry Canadatechnical specifications were met.
This device complies with Part 15 of the FCCRules and with License exempt RSSStandards of Industry Canada. Operation issubject to the following two conditions:
1.This device may not cause harmfulinterference, and
2.This device must accept any interferencereceived, including interference that maycause undesired operation.
TIRE PRESSURE MONITORING
SYSTEM PRECAUTIONS
WARNING: The tire pressuremonitoring system is not a substitute formanually checking tire pressures. Youshould periodically check tire pressuresusing a pressure gauge. Failure to correctlymaintain tire pressures could increase therisk of tire failure, loss of control, vehiclerollover and personal injury.
WARNING: Do not use the tirepressure displayed in the informationdisplay as a tire pressure gauge. Failure tofollow this instruction could result inpersonal injury or death.
Note:The use of tire sealants can damagethe tire pressure monitoring system.
Note:If the tire pressure monitor sensorbecomes damaged it may not function.
454
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTire Pressure Monitoring System
TIRE PRESSURE MONITORING
SYSTEM LIMITATIONS
When the outside temperature dropssignificantly, the tire pressure could decreaseand activate the low tire pressure warninglamp.
The warning lamp could also illuminate whenyou use a spare wheel, or tire sealant fromthe inflator kit.
Note:Regularly checking the vehicle tirepressures can reduce the possibility for thewarning lamp to illuminate due to outsideair temperature changes.
Note:After you inflate the tires to therecommended pressure it could take up totwo minutes of driving over 20 mph (32 km/h)for the warning indicator to turn off.
VIEWING THE TIRE PRESSURES
Using the instrument cluster displayarrow keys navigate to the truck infosection where you can view the tirepressures.
TIRE PRESSURE MONITORING
SYSTEM – TROUBLESHOOTING
TIRE PRESSURE MONITORINGSYSTEM – WARNING LAMPS
The low tire pressure warning lamphas combined functions, as itwarns you when your tires needair, and when the system is no longercapable of functioning as intended.
455
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTire Pressure Monitoring SystemE224333 E139232
Action RequiredPossible CauseWarning Lamp
After inflating your tires to the manufacturer’s recommendedpressure as shown on the tire label, on the edge of driver dooror the B-pillar, drive your vehicle for at least two minutes over20 mph (32 km/h) before the light turns off.
One or more tires are significantly underinflatedSolid warning lamp
Repair the damaged road wheel and tire and refit it to your vehicleto restore operation of the system.Temporary spare wheel in useSolid warning lamp or flashingwarning lamp
If the tires are inflated to the recommended tire pressures andthe temporary spare wheel is not in use, the system detected afault that requires service. Have your vehicle checked as soonas possible.
Tire pressure monitoring systemmalfunction
456
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTire Pressure Monitoring System
TIRE PRESSURE MONITORING SYSTEM – INFORMATION MESSAGES
ActionMessage
After inflating your tires to the manufacturer’s recommended pressure as shown on the TireLabel, on the edge of the driver door or the B-Pillar, drive your vehicle for at least two minutesover 20 mph (32 km/h) before the light turns off.
Tire Pressure Low
The system has detected a fault that requires service. Have your vehicle checked as soon aspossible.Tire Pressure Monitor Fault
The system has detected a fault that requires service or a spare tire is in use. Have your vehiclechecked as soon as possible.Tire Pressure Sensor Fault
Trailer Tire Pressure Monitoring System
ActionMessage
One or more tires on your trailer is below the specified tire pressure.Trailer Tire Low Specified:
Displays when one or more tires on your trailer is above the recommendedtemperature.Trailer Tire Over Temperature
A trailer tire pressure sensor is malfunctioning. If the warning stays on or continuesto come on, contact an authorized dealer as soon as possible.Trailer Tire Pressure Sensor Fault
457
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTire Pressure Monitoring System
ActionMessage
The trailer tire pressure monitoring system is malfunctioning. If the warning stayson or continues to come on, contact an authorized dealer.Trailer Tire Pressure Monitor Fault
The system cannot detect the trailer tire pressure monitoring system.Trailer Tire Pressure Monitor Capability Not Detected
The trailer tire pressure monitoring system is not setup. See Tire PressureMonitoring System (page 453).Trailer Tire Pressure Indication Not Setup See Manual
458
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTire Pressure Monitoring System
CHANGING A FLAT TIRE
If you get a flat tire when driving, do notapply the brake heavily. nstead, graduallydecrease your speed, hold the steeringwheel firmly and slowly move to a safe placeon the side of the road.
Have the flat serviced by an authorizeddealer to prevent damage to the systemsensors. See Tire Pressure MonitoringSystem (page 453). Replace the spare tirewith a road tire as soon as possible. Duringrepairing or replacing of the flat tire, havethe authorized dealer inspect the systemsensor for damage.
Note:Only use tire sealants in roadsideemergencies as they may cause damage tothe tire pressure monitoring system sensor.
Note:The tire pressure monitoring systemindicator light illuminates when the sparetire is in use. To restore the full function ofthe monitoring system, all road wheels withtire pressure monitoring sensors must bemounted on this vehicle.
Dissimilar Spare Wheel and TireAssembly Information
WARNING: Failure to follow theseguidelines could result in an increased riskof loss of vehicle 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. If thedissimilar spare tire or wheel is damaged, itshould be replaced rather than repaired.
A dissimilar spare wheel and tire assemblyis defined as a spare wheel and tire assemblythat is different in brand, size or appearancefrom the other road tires and wheels on yourvehicle.
Full-size dissimilar spare
When driving with the full-size dissimilarspare wheel and tire assembly, do not:
•Exceed 70 mph (113 km/h).
•Use more than one dissimilar sparewheel and tire assembly at a time.
•Use snow chains on the end of thevehicle with the dissimilar spare wheeland tire assembly.
When driving with the full-size dissimilarspare wheel and tire assembly, it isrecommended that you do not:
•Exceed 50 mph (80 km/h) in four-wheeldrive.
•Engage four-wheel drive unless thevehicle is stationary.
•Use four-wheel drive on dry pavement.
Using a dissimilar spare wheel and tireassembly can compromise the effectivenessof the following:
•Handling, stability and brakingperformance.
•Comfort and noise.
•Ground clearance and parking at curbs.
•Winter weather driving capability.
459
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMChanging a Road Wheel