Page 289 of 385

Descend a hill in the same gear you
would use to climb up the hill to
avoid excessive brake application
and brake overheating. Do not
descend in neutral; instead,
disengage overdrive or manually
shift to a lower gear. When
descending a steep hill, avoid
sudden hard braking as you could
lose control. When you brake hard,
the front wheels can’t turn and if
they aren’t turning, you won’t be
able to steer. The front wheels have to be turning in order to steer the
vehicle. Rapid pumping of the brake pedal will help you slow the vehicle
and still maintain steering control.
If your vehicle has anti-lock brakes, apply the brakes steadily. Do not
“pump” the brakes.
Driving on snow and ice
Four–wheel drive vehicles have advantages over two–wheel drive
vehicles in snow and ice but can skid like any other vehicle.
Should you start to slide while driving on snowy or icy roads, turn the
steering wheel in the direction of the slide until you regain control.
Avoid sudden applications of power and quick changes of direction on
snow and ice. Apply the accelerator slowly and steadily when starting
from a full stop.
Avoid sudden braking as well. Although a four–wheel drive vehicle may
accelerate better than a two-wheel drive vehicle in snow and ice, it won’t
stop any faster, because as in other vehicles, braking occurs at all four
wheels. Do not become overconfident as to road conditions.
Make sure you allow sufficient distance between you and other vehicles
for stopping. Drive slower than usual and consider using one of the lower
gears. In emergency stopping situations, apply the brake forcefully and
steadily. Do not “pump” the brakes. Refer to theBrakessection of this
chapter for additional information on the operation of the anti-lock brake
system.
Driving
289
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 291 of 385
DRIVING THROUGH WATER
If driving through deep or standing
water is unavoidable, proceed very
slowly especially when the depth is
not known. Never drive through
water that is higher than the bottom
of the wheel rims (for cars) or the
bottom of the hubs (for trucks).
When driving through water, traction or brake capability may be limited.
Also, water may enter your engine’s air intake and severely damage your
engine or your vehicle may stall.Driving through deep water where
the transmission vent tube is submerged may allow water into the
transmission and cause internal transmission damage.
Once through the water, always dry the brakes by moving your
vehicle slowly while applying light pressure on the brake pedal.
Wet brakes do not stop the vehicle as quickly as dry brakes.
Driving
291
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 297 of 385

The fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingProtective Circuits
1 30A Smart window #1
2 15A Driver side memory module
3 15A Family entertainment system,
Audio rear seat controls, Satellite
radio, SYNC
4 30A Smart window #2
5 10A Keypad illumination, 3rd row seat
enable, Brake shift interlock
(BSI), Passenger compartment
fuse panel
6 20A Turn signals
7 10A Low beam headlamps (left)
8 10A Low beam headlamps (right)
9 15A Interior lights
10 15A Switch backlighting, Puddle lamps
11 10A Not used (spare)
12 7.5A Power mirrors, Driver seat
memory switch
13 5A Not used (spare)
14 10A Power liftgate module – keep-alive
power
15 10A Climate control, Global positioning
satellite module
16 15A Not used (spare)
17 20A Door locks, Liftgate release,
Liftglass release
18 20A Second row heated seats
19 25A Rear wiper
20 15A Adjustable pedals, Datalink
21 15A Fog lamps
22 15A Park lamps
Roadside Emergencies
297
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 300 of 385

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
4 — Trailer tow battery charge relay
5 — Fuel pump relay
6 — Electronic fan 1 relay
7 — Rear window defroster/heated
mirror relay
8 — Electronic fan 3 relay
9 — Run/Start (R/S) relay
10 — Rear air suspension (RAS) relay
11 40A** Power running board
12 40A** R/S relay
13 30A ** Starter relay
14 40A** Electronic fan
15 20A** Right hand high intensity
discharge (HID) headlamp relay
16 40A** Electronic fan
17 20A** Left hand HID headlamp relay
18 30A** Trailer brake
19 60A** RAS relay feed
20 — Not used
21 30A** Trailer tow battery charge
22 30A** Passenger power seat
23 — A/C clutch relay
24 — Trailer tow park lamp relay
25 — Right hand HID headlamp relay
26 15A* Transmission control module
(TCM) keep-alive power
27 20A* 4x4
28 25A* Trailer tow park lamp relay
29 20A* Backup lamps, Integrated wheel
end solenoid
30 10A* A/C clutch relay
31 — Not used
Roadside Emergencies
300
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 301 of 385
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
32 40A** Blower motor relay
33 — Not used
34 30A** Auxiliary blower motor
35 30A** PCM relay
36 30A** Power liftgate
37 — Trailer tow left hand stop/turn
relay
38 — Trailer tow right hand stop/turn
relay
39 — Backup lamps relay
40 — Blower motor relay
41 10A* PCM keep-alive power
42 — Not used
43 5A* Brake on/off switch
44 20A* Fuel pump relay
45 25A* Trailer tow stop/turn lamps relay
46 — Not used
47 — Not used
48 30A** RAS module
49 — Not used
50 30A** Front wiper motor
51 40A** Rear window defroster/heated
mirror relay
52 10A* Anti-lock brake system (ABS)
R/S feed
53 10A* RAS module
54 5A* TCM R/S feed
55 5A* Fuel pump relay coil R/S feed
56 30A* Passenger compartment fuse
panel R/S feed
57 10A* Blower motor R/S feed
58 15A* Trailer tow backup lamps
Roadside Emergencies
301
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 303 of 385

CHANGING THE TIRES
If you get a flat tire while driving, do not apply the brake heavily.
Instead, gradually decrease your speed. Hold the steering wheel firmly
and slowly move to a safe place on the side of the road.
Note:The tire pressure monitoring system (TPMS) indicator light will
illuminate when the spare tire is in use. To restore the full functionality
of the monitoring system, all road wheels equipped with tire pressure
monitoring sensors must be mounted on the vehicle.
Have a flat serviced by an authorized dealer in order to prevent damage
to the TPMS sensors, refer toTire pressure monitoring system
(TPMS)in theTires, Wheels and Loadingchapter. Replace the spare
tire with a road tire as soon as possible. During repairing or replacing of
the flat tire, have the authorized dealer inspect the TPMS sensor for
damage.
WARNING:The use of tire sealants may damage your Tire
Pressure Monitoring System and should not be used.
WARNING:Refer toTire pressure monitoring system (TPMS)
in theTires, Wheels and Loadingchapter for important
information. If the tire pressure monitor sensor becomes damaged, it
will no longer function.
Dissimilar spare tire/wheel information
WARNING:Failure to follow these guidelines could result in an
increased risk of loss of vehicle control, injury or death.
If you have a dissimilar spare tire/wheel, then it is intended for
temporary use only. This means that if you need to use it, you should
replace it as soon as possible with a road tire/wheel that is the same size
and type as the road tires and wheels that were originally provided by
Ford. If the dissimilar spare tire or wheel is damaged, it should be
replaced rather than repaired.
A dissimilar spare tire/wheel is defined as a spare tire and/or wheel that
is different in brand, size or appearance from the road tires and wheels
and can be one of three types:
1.T-type mini-spare:This spare tire begins with the letter “T” for tire
size and may have “Temporary Use Only” molded in the sidewall
Roadside Emergencies
303
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 305 of 385

•Wet weather driving capability
•All-Wheel driving capability (if applicable)
•Load leveling adjustment (if applicable)
When driving with the full-size dissimilar spare tire/wheel additional
caution should be given to:
•Towing a trailer
•Driving vehicles equipped with a camper body
•Driving vehicles with a load on the cargo rack
Drive cautiously when using a full-size dissimilar spare tire/wheel and
seek service as soon as possible.
Stopping and securing the vehicle
1. Park on a level surface, activate
the hazard flashers and set the
parking brake.
2. Place the gearshift in P (Park)
and turn the engine off.
Location of the spare tire and tools
The spare tire and tools for your vehicle are stowed in the following
locations:
Item Location
Spare tire Under the vehicle, just forward of
the rear bumper
Jack tools and jacking instructions Under the access panel located in
the floor compartment behind the
rear seat
Roadside Emergencies
305
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)
Page 307 of 385

Tire change procedure
WARNING:To help prevent the vehicle from moving when you
change a tire, be sure the parking brake is set, then block the
wheels (both front or both rear) on the opposite end of the vehicle
from the wheel being changed. If on a grade, block both opposite
wheels on the downward side of the hill.
WARNING:If the vehicle slips off the jack, you or someone else
could be seriously injured.
WARNING:On vehicles equipped with air suspension, turn off
the air suspension system prior to jacking, hoisting or towing
your vehicle.
WARNING:Turn off the running boards (if equipped) before
jacking or placing any object under the vehicle. Never place your
hand between the extended running board and the vehicle. A moving
running board may cause injury.
WARNING:Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off the road to
avoid the danger of being hit when operating the jack and changing the
wheel.
Note:Passengers should not remain in the vehicle when the vehicle is
being jacked.
If your vehicle is equipped with air suspension, refer toMessage center
in theInstrument Clusterchapter for instructions on turning the air
suspension system off.
Refer to the instruction sheet (located in the rear floor compartment
behind the 3rd row seat with the jack tray tools assembly kit) for
detailed tire change instructions.
Roadside Emergencies
307
2010 Navigator(nav)
Owners Guide(own2002), 1st Printing
USA(fus)