Page 225 of 481
Changing the Set Speed
•Press and holdSET+orSET–. Release the button when you reach
the desired speed.
•Press and releaseSET+orSET–. The set speed will change in
approximately 1 mph (2 km/h) increments.
•Press the accelerator pedal or brake pedal until you reach the desired
speed. Press and releaseSET+.
Canceling a Set Speed
Tap the brake pedal. The set speed will not be erased.
Resuming a Set Speed
Press and releaseRESUME.
Switching Off Cruise Control
Note:The set speed is erased when you turn off cruise control.
PressOFFor turn off the ignition.
Cruise Control225
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 226 of 481

STEERING
Your vehicle is equipped with power steering. Power steering uses energy
from the engine to decrease the driver’s effort in steering the vehicle.
To help prevent damage to the power steering pump:
•Never hold the steering wheel to the extreme right or the extreme left
for more than a few seconds when the engine is running.
•Do not operate the vehicle with the power steering pump fluid level
below the MIN mark on the reservoir.
•Some noise is normal during operation. If the noise is excessive, check
for low power steering pump fluid level before seeking service by your
authorized dealer.
•Heavy or uneven steering efforts may be caused by low power steering
pump fluid level. Check for low power steering pump fluid level before
seeking service by your authorized dealer.
•Do not fill the power steering pump reservoir above the MAX mark on
the reservoir, as this may result in leaks from the reservoir.
If the power steering system breaks down (or if the engine is turned
off), you can steer the vehicle manually, but it takes more effort.
If the steering wanders or pulls, check for:
•Underinflated tire(s) on any wheel(s)
•Uneven vehicle loading
•High crown in center of road
•High crosswinds
•Wheels out of alignment
•Loose or worn suspension components
226Driving Aids
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 227 of 481

AIR SUSPENSION SYSTEM (IF EQUIPPED)
WARNING:On vehicles equipped with air suspension, turn the
air suspension and the ignition switch off prior to jacking,
hoisting or towing your vehicle.
The air suspension system is designed to improve ride, handling and
general vehicle performance during:
•Certain road conditions
•Steering maneuvers
•Braking
•Acceleration
This system keeps the rear of your vehicle at a constant level by
automatically adding air or releasing air from the springs. If you exceed
the load limit, the rear air suspension may not operate. The air
suspension system will stay active for 40 minutes after the ignition is
turned off to accommodate any load changes. (The air compressor may
run when the vehicle is off; this is normal.)
The air suspension system can be enabled or disabled through the
message center. Refer to theInformation Displayschapter.
If the system is off, the rear air suspension will not operate and will not
raise (pump) or lower (vent) while the vehicle is not moving. However, if
the system determines that the vehicle is low or high and needs to make
a height adjustment while driving at speeds above 15 mph (24 km/h), the
system will pump or vent as required. Normal vehicle operation does not
require any action by the driver.
Driving Aids227
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 228 of 481

ROOF RACKS AND LOAD CARRIERS
WARNING:When loading the roof rail crossbars, it is
recommended to evenly distribute the load, as well as maintain a
low center of gravity. Loaded vehicles, with higher centers of gravity,
may handle differently than unloaded vehicles. Extra precautions, such
as slower speeds and increased stopping distance, should be taken
when driving a heavily loaded vehicle.
Note:The maximum recommended load is 200 pounds (90 kilograms),
evenly distributed on the crossbars.
Note:Loads should never be placed directly on the roof panel. The roof
panel is not designed to directly carry a load.
For proper function of the roof rack system, loads must be placed
directly on crossbars affixed to the roof rack side rails. Your vehicle may
be equipped with factory-installed crossbars. Ford Genuine Accessory
crossbars, designed specifically for your vehicle, are also recommended
for use with your roof rack system.
Make sure that the load is securely fastened. Check the tightness of the
load before driving and at each fuel stop.
Adjusting the Crossbars (If Equipped)
1. Loosen the thumbwheels at both ends of the
crossbar by turning them counterclockwise (both
crossbars are adjustable).
2. Slide the crossbar to the desired location.
3. Tighten the thumbwheels at both ends of the
crossbar by turning them clockwise.
Make sure to check that the thumbwheels are tight each time a load is
added or removed from the roof rack, and periodically while traveling.
Make sure that the load is secure before traveling.
228Load Carrying
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 229 of 481

LOAD LIMIT
Vehicle Loading – With and Without a Trailer
This section will guide you in the proper loading of your vehicle and/or
trailer, to keep your loaded vehicle weight within its design rating
capability, with or without a trailer. Properly loading your vehicle will
provide maximum return of vehicle design performance. Before loading
your vehicle, familiarize yourself with the following terms for determining
your vehicle’s weight ratings, with or without a trailer, from the vehicle’s
Tire Label or Safety Compliance Certification Label:
Base Curb Weight– is the weight of the vehicle including a full tank of
fuel and all standard equipment. It does not include passengers, cargo, or
optional equipment.
Vehicle Curb Weight– is the weight of your new vehicle when you
picked it up from your authorized dealer plus any aftermarket
equipment.
Payload– is the combined weight of cargo and passengers that the
vehicle is carrying. The maximum payload for your vehicle can be found
on the Tire Label on the B-Pillar or the edge of the driver’s door
(vehicles exported outside the US and Canada may not have a Tire
Label). Look for“THE COMBINED WEIGHT OF OCCUPANTS AND
CARGO SHOULD NEVER EXCEED XXX kg OR XXX lb.”for
maximum payload. The payload listed on the Tire Label is the maximum
payload for the vehicle as built by the assembly plant. If any aftermarket
or authorized-dealer installed equipment has been installed on the
vehicle, the weight of the equipment must be subtracted from the
payload listed on the Tire Label in order to determine the new payload.
Load Carrying229
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 230 of 481
WARNING:The appropriate loading capacity of your vehicle can
be limited either by volume capacity (how much space is
available) or by payload capacity (how much weight the vehicle should
carry). Once you have reached the maximum payload of your vehicle,
do not add more cargo, even if there is space available. Overloading or
improperly loading your vehicle can contribute to loss of vehicle control
and vehicle rollover.
Example only:
230Load Carrying
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 231 of 481

Cargo Weight– includes all weight added to the Base Curb Weight,
including cargo and optional equipment. When towing, trailer tongue load
or king pin weight is also part of cargo weight.
GAW (Gross Axle Weight)– is the total weight placed on each axle
(front and rear) – including vehicle curb weight and all payload.
GAWR (Gross Axle Weight Rating)– is the maximum allowable
weight that can be carried by a single axle (front or rear).These
numbers are shown on the Safety Compliance Certification Label.
The label shall be affixed to either the door hinge pillar,
door-latch post, or the door edge that meets the door-latch post,
next to the driver’s seating position. The total load on each axle
must never exceed its GAWR.
Note:For trailer towing information refer to theRV and Trailer Towing
Guideprovided by your authorized dealer.
GVW (Gross Vehicle Weight)– is the Vehicle Curb Weight + cargo +
passengers.
GVWR (Gross Vehicle Weight Rating)– is the maximum allowable
weight of the fully loaded vehicle (including all options, equipment,
passengers and cargo).The GVWR is shown on the Safety
Compliance Certification Label. The label shall be affixed to
either the door hinge pillar, door-latch post, or the door edge that
meets the door-latch post, next to the driver’s seating position.
The GVW must never exceed the GVWR.
Load Carrying231
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 232 of 481
•Example only:
WARNING:Exceeding the Safety Compliance Certification Label
vehicle weight rating limits could result in substandard vehicle
handling or performance, engine, transmission and/or structural
damage, serious damage to the vehicle, loss of control and personal
injury.
232Load Carrying
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)