Page 255 of 481

Should your vehicle shut off after a collision, you may restart your
vehicle by doing the following:
1. Turn the ignition off.
2. Turn the ignition on.
3. Repeat steps 1 and 2 to re-enable fuel pump.
Note:If your vehicle has the push button start system, press the
stop/start button twice to reactivate the fuel system.
JUMP-STARTING THE VEHICLE
WARNING:The gases around the battery can explode if exposed
to flames, sparks, or lit cigarettes. An explosion could result in
injury or vehicle damage.
WARNING:Batteries contain sulfuric acid which can burn skin,
eyes and clothing, if contacted.
Do not attempt to push-start your automatic transmission vehicle.
Automatic transmissions do not have push-start capability. Attempting to
push-start a vehicle with an automatic transmission may cause
transmission damage.
When the battery is disconnected or a new battery is installed, the
automatic transmission must relearn its shift strategy. As a result, the
transmission may exhibit a combination of firm and soft shifts. This
operation is considered normal and will not affect function or durability
of the transmission. Over time, the adaptive learning process will fully
update transmission operation.
Preparing Your Vehicle
Note:Use only a 12 volt supply to start your vehicle.
Note:Do not disconnect the battery of the disabled vehicle as this could
damage the vehicle’s electrical system.
1. Park the booster vehicle close to the hood of the disabled vehicle making
sure the two vehicles do not touch. Set the parking brake on both vehicles
and stay clear of the engine cooling fan and other moving parts.
2. Check all battery terminals and remove any excessive corrosion before
you attach the battery cables. Ensure that vent caps are tight and level.
3. Turn the heater fan on in both vehicles to protect from any electrical
surges. Turn all other accessories off.
Roadside Emergencies255
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 268 of 481
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 relay
10 — Rear air suspension relay
11 40A** Power running board
12 40A** Run/start relay
13 30A ** Starter relay
14 40A** Electronic fan
15 20A** Right hand high intensity
discharge headlamp relay
16 40A** Electronic fan
17 20A** Left hand high intensity
discharge headlamp relay
18 30A** Trailer brake
19 60A** Rear air suspension relay feed
20 — Not used
21 30A** Trailer tow battery charge relay
22 30A** Passenger power seat
23 — A/C clutch relay
24 — Trailer tow park lamp relay
25 — Right hand HID headlamp relay
26 — Not used
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
268Fuses
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 269 of 481
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
32 40A** Blower motor relay
33 40A** 110 volt AC power point
34 30A** Auxiliary blower motor
35 30A** Powertrain control module 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 — Electronic fan 2 relay
41 10A* Powertrain control module
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** Rear air suspension module
49 — Not used
50 30A** Front wiper motor relay
51 40A** Rear window defroster/heated
mirror relay
52 10A* Anti-lock brake system run/start
feed
53 10A* Rear air suspension module
54 — Not used
55 5A* Fuel pump relay coil run/start
feed
56 30A* Passenger compartment fuse
panel run/start feed
Fuses269
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 270 of 481
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
57 10A* Blower motor relay coil
58 15A* Trailer tow backup lamps
59 15A* Heated mirrors
60 — Not used
61 — Fuel pump diode
62 — Left high intensity discharge
headlamp relay
63 25A** Electronic fan
64 30A** Moonroof
65 20A** Auxiliary power point
(instrument panel)
66 20A** Auxiliary power point (rear of
center console)
67 40A** Front row climate controlled
seats
68 60A** Anti-lock brake system valves
69 60A** Anti-lock brake system pump
70 30A** Third row power fold seat
71 20A** Auxiliary power point/cigar
lighter
72 20A** Auxiliary power point (right rear
quarter panel)
73 — Not used
74 30A** Driver power seat
75 20A* Vehicle power 1 – powertrain
control module
76 20A* Vehicle power 2 – powertrain
control module
77 15A* Vehicle power4–ignition coils
78 — Not used
79 20A* Vehicle power 3 – powertrain
control module
270Fuses
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 272 of 481
The fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingProtective Circuits
1 30A Driver window
2 15A Driver side memory module
3 15A Audio rear seat controls, Satellite
radio, SYNC
4 30A Passenger window
5 10A Keypad illumination, 3rd row seat
enable, Brake-shift interlock,
Smart fuse panel logic power
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
272Fuses
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 276 of 481
Working with the Engine Off
1. Set the parking brake and shift to P (Park).
2. Turn off the engine and remove the key (if equipped).
3. Block the wheels.
Working with the Engine On
WARNING:To reduce the risk of vehicle damage and/or personal
burn injuries, do not start your engine with the air cleaner
removed and do not remove it while the engine is running.
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
OPENING AND CLOSING THE HOOD
1. Inside the vehicle, pull the hood
release handle located under the
bottom of the instrument panel.
2. Go to the front of the vehicle and
release the auxiliary latch that is
located under the front center of
the hood.
3. Lift the hood until the lift
cylinders hold it open.
B
R
A
K
E
276Maintenance
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 277 of 481
UNDER HOOD OVERVIEW
5.4L V8
A. Windshield washer fluid reservoir
B. Engine oil dipstick
C. Brake fluid reservoir
D. Engine coolant reservoir
E. Air filter assembly
F. Power steering fluid reservoir
G. Power distribution box
H. Engine oil filler cap
I. Battery
WASHER FLUID O
NLY
ABCD
EFGHI
Maintenance277
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 278 of 481

ENGINE OIL DIPSTICK
A.–MIN
B. – MAX
ENGINE OIL CHECK
Refer to thescheduled maintenance informationfor the appropriate
intervals for checking the engine oil.
1. Make sure the vehicle is on level ground.
2. Turn the engine off and wait 15 minutes for the oil to drain into the
oil pan.
3. Set the parking brake and ensure the gearshift is securely latched in P
(Park).
4. Open the hood. Protect yourself from engine heat.
5. Locate and carefully remove the engine oil level dipstick. See the
Under Hood Overviewin this chapter for location of dipstick.
6. Wipe the dipstick clean. Insert the dipstick fully, then remove it again.
If the oil level is between the lower and upper holes or between the MIN
and MAX marks (depending on application), the oil level is acceptable.
DO NOT ADD OIL.
If the oil level is below the lower hole or the MIN mark, add enough oil
to raise the level within the lower and upper holes or within the
MIN-MAX range.
Oil levels above the upper hole or the MAX mark may cause engine
damage. Some oil must be removed from the engine by an authorized
dealer.
7. Put the dipstick back in and ensure it is fully seated.
AB
278Maintenance
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)