Page 5 of 481

Cruise Control 224
Using cruise control...................................224
Driving Aids 226
Steering............................................226
Air suspension.......................................227
Load Carrying 228
Roof racks and load carriers.............................228
Vehicle loading.......................................229
Cargo management system..............................236
Towing 239
Trailertowing........................................239
Wrecker towing......................................247
Recreational towing...................................248
Driving Hints 249
Economical driving....................................249
Floormats..........................................251
Roadside Emergencies 253
Getting roadside assistance..............................253
Hazard warning flashers................................254
Fuel cut-off switch....................................254
Jump-starting the vehicle...............................255
Customer Assistance 258
Reporting safety defects (U.S. only).......................265
Reporting safety defects (Canada only).....................265
Fuses 266
Changing a fuse......................................266
Fuse specification chart................................267
Table of Contents5
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)
Page 239 of 481

TOWING A TRAILER
WARNING:Do not exceed the GVWR or the GAWR specified on
the certification label.
WARNING:Towing trailers beyond the maximum recommended
gross trailer weight exceeds the limit of the vehicle and could
result in engine damage, transmission damage, structural damage, loss
of vehicle control, vehicle rollover and personal injury.
Note:For information on electrical items such as fuses or relays, see the
Fuseschapter.
Your vehicle’s load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
Towing a trailer places an additional load on your vehicle’s engine,
transmission, axle, brakes, tires and suspension. Inspect these
components periodically during, and after, any towing operation.
When driving with a trailer or payload, a slight takeoff vibration or
shudder may be present due to the increased payload weight. Additional
information regarding proper trailer loading and setting your vehicle up
for towing is noted underLoad limitin theLoad Carryingchapter and
in theRV & Trailer Towing Guide,available at your authorized dealer.
Load Placement
To help minimize how trailer movement affects the vehicle when driving:
•Load the heaviest items closest to the trailer floor.
•Load the heaviest items so they are centered between the left and
right side trailer tires.
•Load the heaviest items above the trailer axles or just slightly forward
toward the trailer tongue. Do not allow the final trailer tongue weight
to go above or below 10–15% of the loaded trailer weight.
•Select a tow bar with the correct rise or drop. When both the loaded
vehicle and trailer are connected, the trailer frame should be level, or
slightly angled down, when viewed from the side.
TRAILER SWAY CONTROL (IF EQUIPPED)
Note:This feature does not prevent trailer sway, but reduces it once it
begins.
Note:This feature cannot stop all trailers from swaying.
Note:In some cases, if vehicle speed is too high, the system may
activate multiple times, gradually reducing vehicle speed.
Towing239
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 274 of 481
Fuse/Relay
LocationFuse Amp
RatingProtective Circuits
38 20A Subwoofer, THX amplifier
39 20A Radio
40 20A THX amplifier
41 15A Power windows, Power vents,
Power moonroof, Auto dimming
rear view mirror, 110 volt AC
power point
42 10A Not used (spare)
43 10A Rear wiper logic, Rain sensor
44 10A Trailer tow battery charge relay
coil
45 5A Front wiper logic
46 7.5A Climate control, Auxiliary relay
control
47 30A Circuit
BreakerPower windows, Moonroof
48 — Delayed accessory relay
274Fuses
2013 Navigator(nav)
Owners Guide gf, 1st Printing
USA(fus)