ground clearance LINCOLN NAVIGATOR 2018 Owners Manual

Truck and utility vehicles can differ fromsome other vehicles. Your vehicle may behigher to allow it to travel over rough terrainwithout getting hung up or damagingunderbody components.
The differences that make your vehicle soversatile also make it handle differently thanan ordinary passenger car.
Maintain steering wheel control at all times,especially in rough terrain. Since suddenchanges in terrain can result in abruptsteering wheel motion, make sure you gripthe steering wheel from the outside. Do notgrip the spokes.
Drive cautiously to avoid vehicle damagefrom concealed objects such as rocks andstumps.
You should either know the terrain orexamine maps of the area before driving.Map out your route before driving in the area.To maintain steering and braking control ofyour vehicle, you must have all four wheelson the ground and they must be rolling, notsliding or spinning.
Driving Off-Road With Truck and UtilityVehicles
Note:On some models, the initial shift fromtwo-wheel drive to four-wheel drive whenthe vehicle is moving can cause somemomentary clunk and ratcheting sounds.This is the front drivetrain coming up tospeed and the automatic locking hubsengaging and is not cause for concern.
Note:Your vehicle may have a front air dam.Due to low ground clearance, you candamage it when taking your vehicle off-road.You can take the air dam off by removingthe bolts that secure it.
Four-wheel drive vehicles are speciallyequipped for driving on sand, snow, mud andrough terrain and have operatingcharacteristics that are somewhat differentfrom conventional vehicles, both on and offthe road.
Power is supplied to all four wheels througha transfer case. On four-wheel drive vehicles,the transfer case allows you to utilizedifferent 4X4 modes when necessary.Information on transfer case operation andshifting procedures can be found in this
chapter and the Driving Aids chapter.Information on transfer case maintenancecan be found in the Maintenance chapter.You should become thoroughly familiar withthis information before you operate yourvehicle.
Four-wheel drive, when you select a4X4-capable drive mode, it uses all fourwheels to power the vehicle. This increasestraction, enabling you to drive over terrainand road conditions that a conventionaltwo-wheel drive vehicle cannot.
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Four-Wheel Drive (If Equipped)

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 road tires and wheels.
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 4WD.
•Engage 4WD unless the vehicle isstationary.
•Use 4WD on dry pavement.
The usage of a full-size dissimilar sparewheel and tire assembly 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.
•Four-wheel driving capability.
When driving with the full-size dissimilarspare wheel and tire assembly additionalcaution should be given to:
•Towing a trailer.
•Driving vehicles equipped with a camperbody.
•Driving vehicles with a load on the cargorack.
Drive cautiously when using a full-sizedissimilar spare wheel and tire assembly andseek service as soon as possible.
Location of the Spare Tire and Tools
The spare tire is located under the vehicle,just forward of the rear bumper. The jack,swivel wrench and lug wrench are in thefollowing locations:
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Wheels and Tires