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1. Remove the negative (-) jumper cable
from the disabled vehicle.
2. Remove the jumper cable on the negative (-) terminal of the booster
vehicle battery.
3. Remove the jumper cable from the positive (+) terminal of the booster
vehicle battery.
4. Remove the jumper cable from the positive (+) terminal of the disabled
vehicle battery.
5. Allow the engine to idle for at least one
minute. TRANSPORTING THE VEHICLE WARNING: Block the wheels to
help prevent the vehicle from moving. WARNING:
Unexpected and
possibly sudden vehicle movement may
occur if you do not take these
precautions. If you need to tow your vehicle, contact a
professional towing service or, if you are a
member of a roadside assistance program,
your roadside assistance service provider.
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1
3
2
E142665 E143886
Page 162 of 387

We recommend the use of a wheel lift and
dollies or flatbed equipment to tow your
vehicle. Do not tow with a slingbelt. We do
not approve a slingbelt towing procedure.
If you tow your vehicle incorrectly, or by
any other means, vehicle damage may
occur.
We produce a towing manual for all
authorized tow truck operators. Have your
tow truck operator refer to this manual for
proper hook-up and towing procedures for
your vehicle.
It is acceptable to have your two-wheel
drive vehicle towed with the front wheels
on the ground (without dollies) and the
rear wheels off the ground.
We recommend towing a four-wheel drive
vehicle with all wheels off the ground, such
as using a wheel lift and dollies or flatbed
equipment. However, it is acceptable to
use a wheel lift to raise the rear of your
vehicle so long as, depending on vehicle
configuration, you perform the following
before towing:
•
If your vehicle has a manual-shift
transfer case, make sure the front
wheel hub locks are in the FREE
position before towing.
• If your vehicle has an electronic
shift-on-the-fly transfer case, make
sure you switch the four-wheel drive
control to the
2H position before
towing.
Note: Towing an electronic shift-on-the-fly
four-wheel drive vehicle with the front
wheels on the ground without disengaging
the front hubs may cause damage to the
automatic transmission.
Note: Towing a two-wheel drive vehicle or
an electronic shift-on-the-fly four-wheel
drive vehicle with the rear wheels on the
ground for more than
50 mi (80 km) or
faster than 35 mph (56 km/h) may cause
damage to the automatic transmission. Note:
Using wheel lift equipment to tow a
dual rear wheel vehicle requires removing
an outer rear wheel before towing.
Note: If you are towing your vehicle from
the front, disconnect the driveline from the
rear axle or vehicle damage may occur.
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Page 170 of 387
FUSE SPECIFICATION CHART
Power Distribution Box
WARNING: Always disconnect the
battery before servicing high current
fuses. WARNING: To reduce risk of
electrical shock, always replace the
cover to the power distribution box
before reconnecting the battery or
refilling fluid reservoirs. The power distribution box is in the engine
compartment. It has high-current fuses
that protect your vehicle's main electrical
systems from overloads.
If you disconnect and reconnect the
battery, you will need to reset some
features. See Changing the 12V Battery
(page
208). Protected Component
Fuse Rating
Fuse or Relay
Number
Blower motor.
Relay
1
Trailer tow and body builder stop lamps.
Relay
2
Urea heaters (diesel engine).
Relay
3
Driver air ride seat compressor.
Relay
4
Heated mirrors.
Relay
5
Not used.
—
6
Not used.
—
7
Passenger air ride seat compressor.
20A 1
8
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Page 171 of 387
Protected Component
Fuse Rating
Fuse or Relay
Number
Not used.
—
9
Not used.
—
10
Not used.
—
11
Not used.
—
12
Terminating resistor (120 ohm).
Resistor
13
Not used.
—
14
Not used.
—
15
Not used.
—
16
Not used.
—
17
Not used.
—
18
Brake on/off isolation relay.
10A 2
19
Not used.
—
20
Not used.
—
21
Trailer tow electric brake controller.
30A 1
22
Blower motor.
40A 1
23
Not used.
—
24
Wipers.
30A 1
25
Trailer tow park lamps.
30A 1
26
Urea heaters (diesel engine).
25A 1
27
Trailer tow park lamps.
Relay
29
A/C clutch.
Relay
30
Wipers.
Relay
31
Not used.
—
32
Vehicle power 1.
20A 2
33
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Protected Component
Fuse Rating
Fuse or Relay
Number
Vehicle power 2.
20A 2
34
Vehicle power 3.
10A 2
35
Vehicle power 4.
20A 2
36
Vehicle power 5 (diesel engine).
10A 2
37
Powertrain control module.
Relay
38
Not used.
—
39
Heated mirrors.
15A 2
40
Not used.
—
41
Trailer tow and body builder stop lamps.
20A 2
42
Not used.
—
43
Ancillary translator module.
20A 2
44
Run/start relay coil.
10A 2
45
Transmission control module keep-alive
power (diesel engine).
10A 2
46
A/C clutch.
10A 2
47
Run/start.
Relay
48
Air dryer.
20A 2
49
Blower motor relay coil.
10A 2
50
Not used.
—
51
Powertrain control module run/start
(diesel engine).
10A 2
52
Transmission control module run/start
(diesel engine).
Not used.
—
53
Anti-lock brake system run/start.
10A 2
54
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Protected Component
Fuse Rating
Fuse or Relay
Number
Seat compressor relay coil.
10A 2
55
Chassis solenoids relay coil.
Heated mirror relay coil.
Passenger compartment fuse panel run/
start feed.
20A 2
56
Fuel pump.
Relay
57
Wiper relay.
5A 2
58
Chassis solenoid relay.
5A 2
59
Air ride seat compressor relay.
Not used.
—
60
Not used.
—
61
Not used.
—
62
Chassis solenoids.
10A 2
63
Not used.
—
64
Cargo box lamp.
10A 2
65
Fuel pump.
30A 2
66
Not used.
—
67
Fuel pump relay coil.
10A 2
68
Not used.
—
69
Trailer tow or body builder backup lamps.
10A 2
70
Not used.
—
71
Powertrain control module relay coil.
10A 2
72
Keep-alive power.
Hydromax monitor.
5A 2
73
Chassis solenoids.
Relay
74
Not used.
—
75
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Protected Component
Fuse Rating
Fuse or Relay
Number
Not used.
—
76
Brake switch isolation (hydraulic brakes).
Relay
77
Not used.
—
78
Not used.
—
79
Not used.
—
80
Not used.
—
81
Auxiliary power point #2.
20A 1
82
Auxiliary power point #1.
20A 1
83
Driver air ride seat compressor.
20A 1
84
Hydromax pump.
60A 1
85
Anti-lock brake system modulator valves.
30A 1
86
Not used.
—
87
Not used.
—
88
Starter motor
40A 1
89
Trailer battery feed (air brakes).
30A 1
90
Trailer tow battery charge (hydraulic
brakes).
Cargo box lamp.
Relay
91
Not used.
—
92
Not used.
—
93
Upfitter relay #1.
25A 1
94
Upfitter relay #2.
25A 1
95
Anti-lock brake system pump (hydraulic
brakes).
60A 1
96
Not used.
—
97
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Protected Component
Fuse Rating
Fuse or Relay
Number
Not used.
—
98
Instrument panel 110 volt power inverter.
40A 1
99
Trailer tow turn lamp relays.
30A 1
100
Starter.
Relay
101
Trailer tow battery charge relay (U-Haul).
Relay
102
Trailer tow battery feed (air brakes).
Trailer tow right hand side turn and stop
lamps.
Relay
103
Trailer tow left hand side turn and stop
lamps.
Relay
104
Not used.
—
105
Trailer tow backup lamps.
Relay
106
Passenger air ride seat compressor.
Relay
107
1 J-case fuse.
2 Mini fuse.
Passenger Compartment Fuse
Panel
The fuse panel is in the passenger footwell.
Remove the panel cover to access the
fuses. Pull the fuse panel cover toward you to
remove it. When the clips of the panel
disengage, let the panel fall easily.
Use the provided fuse puller tool to remove
a fuse. It is on the fuse panel cover.
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