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Locks and Security 64
Keys 64
Locks 64
Seating and Safety Restraints 65
Seating 65
Safety restraints 69
Child restraints 79
Driving 91
Starting 91
Brakes 99
Air suspension 120
Transmission operation 122
Vehicle loading 136
Roadside Emergencies 142
Hazard flasher switch 143
Fuses and relays 143
Jump starting 151
Wrecker towing 155
Customer Assistance 159
Getting assistance outside the U.S. and Canada 161
Ordering additional owner’s literature 162
Reporting safety defects (U.S. only) 162
Reporting safety defects (Canada only) 163
Cleaning 164
Cleaning your vehicle 164
Repairing paint chips 164
Underbody preservation 167
Table of Contents
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USA(fus)
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These are some of the symbols you may see on your vehicle.
Vehicle Symbol Glossary
Safety Alert
See Owner’s Guide
Fasten Safety BeltAirbag - Front
Airbag - SideChild Seat Lower
Anchor
Child Seat Tether
AnchorBrake System
Anti-Lock Brake SystemParking Brake System
Brake Fluid -
Non-Petroleum BasedParking Aid System
Stability Control SystemSpeed Control
Master Lighting SwitchHazard Warning Flasher
Fog Lamps-FrontFuse Compartment
Fuel Pump ResetWindshield Wash/Wipe
Windshield
Defrost/DemistRear Window
Defrost/Demist
Introduction
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USA(fus)
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Engine starting (parking brake applied)
Safety/Emergency
equipment:Prior to entering the cab, verify that the
vehicle is equipped with spare electrical fuses
(if used), three red reflective triangles, a
properly charged and rated fire extinguisher
and wheel chocks. Walk around the vehicle
and check that all steps and grab handles,
inside and out as well as behind, are tight and
clean. Use extreme caution and a three-point
stance at all times. Check door latches for
positive closing, latching and locking.
Starting the engine:Verify the parking brake is set. Press the
clutch (if equipped with a manual
transmission) and verify the transmission is in
neutral. Vehicles equipped with an automatic
transmission should be in N (Neutral) or P
(Park) if equipped with a Park position.
Turn the key to the on position. When the
WAIT TO START indicator light in the
instrument cluster turns off, turn the key to
START.
Oil pressure builds:Make sure engine oil pressure is building to
normal operating range.
Air chime sounds (if
equipped with air
compressor):The low air pressure warning chime should
sound immediately after the engine starts but
before the compressor has built up pressure.
The low air pressure warning chime should
stop when the air pressure reaches 70 psi
(483 kPa) (or more). Let the air pressure
build to governed cut-out pressure, which
should occur between 115–130 psi
(793–896 kPa).
Vehicle Inspection Guide
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USA(fus)
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WARNING:Never adjust the steering wheel when the vehicle is
moving.
AUXILIARY POWER POINT
Power outlets are designed for accessory plugs only. Do not insert
any other object in the power outlet as this will damage the
outlet and blow the fuse. Do not hang any type of accessory or
accessory bracket from the plug. Improper use of the power
outlet can cause damage not covered by your warranty.
The power point is an additional
power source for electrical
accessories. The power points are
located on the instrument panel and
inside the center console storage
bin.
Do not use the power point for
operating the cigarette lighter
element (if equipped).
To prevent the fuse from being blown, do not use the power point(s)
over the vehicle capacity of 12 VDC/180W/15A. If the power point or
cigar lighter socket is not working, a fuse may have blown. Refer to
Fuses and relaysin theRoadside Emergencieschapter for information
on checking and replacing fuses.
To have full capacity usage of your power point, the engine is required to
be running (in a safe manner) to avoid unintentional discharge of the
battery. To prevent the battery from being discharged:
•do not use the power point longer than necessary when the engine is
not running,
•do not leave battery chargers, video game adapters, computers and
other devices plugged in overnight or when the vehicle is parked for
extended periods.
Always keep the power point caps closed when not being used.
Cigarette/Cigar lighter (if equipped)
Do not plug optional electrical accessories into the cigarette lighter
socket.
Do not hold the lighter in with your hand while it is heating, this will
damage the lighter element and socket. The lighter will be released from
its heating position when it is ready to be used.
POWER POINT
Driver Controls
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USA(fus)
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AUTOMATIC TRANSMISSION OPERATION (IF EQUIPPED)
Main transmission, auxiliary transmission, transfer case and power
take-off (PTO) control shift patterns can be found on a placard or decal
on the driver’s sun visor, on the instrument panel or on the shift control
itself.
The main transmission control is used to select the various gear ratios or
speeds of the transmission. Selecting D (Direct Drive), does not change
the transmission gear ratio, but is used where the gear ratios in the main
transmission are adequate to handle the vehicle operation.
If the transmission fails to shift properly, check the inline 10A fuse
located in the battery cables above the battery.
WARNING:Hold the brake pedal down while you move the
gearshift lever between positions. If you don’t hold the brake
pedal down, your vehicle may move unexpectedly and cause property
damage, personal injury or death.
Allison 2200 with park pawl feature
Note:For Allison automatic transmission-equipped vehicles, also refer to
the separateAllison Transmission Operator’s Manual.
A parking pawl effectively grounds the transmission’s output shaft
preventing rotation of the driveline. If the vehicle is stationary, selecting
the P (Park) position places the transmission in neutral and engages the
parking pawl (always use the parking brake, also).
Note:If the P (Park) position is selected when the vehicle is in motion,
the parking pawl mechanism will ratchet andNOThold the truck.
WARNING:Always set the parking brake fully. Do not use the
gearshift in place of the parking brake.
WARNING: To avoid sudden, unexpected vehicle
movement and possible personal injury or death:
1. Bring the vehicle to a complete stop.
2. Shift the transmission into P (Park). Slowly lift your foot from the
brake pedal to engage the transmission parking pawl mechanism.
3. Apply the parking brake and make sure it is holding properly. Do not
rely solely on the parking mechanism of the transmission.)
4. Turn the engine off when you leave the vehicle.Never leave the
vehicle unattended when the engine is running.
Driving
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HAZARD FLASHER
The hazard flasher control is located
on the steering column, just behind
the steering wheel. The hazard
flashers will operate when the
ignition is off.
Press the flasher control and all
front and rear direction signals will
flash. Press the flasher control again
to turn them off. Use it when your
vehicle is disabled and is creating a
safety hazard for other motorists.
Note:With extended use, the flasher may run down your battery.
FUSING
If electrical components in the vehicle are not working, a fuse may have
blown. Blown fuses are identified by a broken wire within the fuse.
Check the appropriate fuses before replacing any electrical components.
Note:Always replace a fuse with one that has the specified amperage
rating. Using a fuse with a higher amperage rating can cause severe wire
damage and could start a fire.
Roadside Emergencies
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USA(fus)
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Passenger compartment fuse panel
Fuse/Relay
LocationFuse Amp
RatingFuse Description
1 20A Horn
2 15A Flasher relay
3 20A Cigar lighter
4 10A Data Link Connector (DLC), Engine
diagnostic connector, Parking brake warning
5 15A Blend door actuator, Function selector switch
assembly, Trailer tow relay, Trailer ABS,
Daytime Running Lights (DRL), Climate
mode, Heated seats, Exhaust brakes, Back-up
lamps switch
6 — Not used
7 — Not used
8 5A Radio, GEM
9 5A Power window switch LED and relay
10 15A Heated mirrors
11 5A Wiper and washer systems
Roadside Emergencies
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USA(fus)
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Fuse/Relay
LocationFuse Amp
RatingFuse Description
12 10A Brake pedal position switch, Transmission
shift selector, Stoplamp switch, Cruise
switches
13 20A Cluster, Radio
14 10A Interior lamp relay
15 10A Interior lamp relay, Vanity mirror lamps,
Generic Electronic Module (GEM)
16 15A High beams, Indicator
17 — Not used
18 5A Headlamp switch interior lighting
19 15A Engine control
20 5A Starting system
21 10A DRL resistor
22 15A Air horn, Air suspension dump, Two-speed
axle, Driver-controlled locking differential
23 10A Flasher relay
24 15A Vacuum pump motor, ABS relay, Fuel heater
relay, Air dryer
25 10A Function selector switch assembly
26 10A Right hand low beam headlamp
27 — Not used
28 10A Left hand low beam headlamp
29 10A Cluster, GEM
30 15A Allison electronic transmission
31 — Not used
Relay 1 — Interior lamps
Relay 2 — Not used
Relay 3 — Horn
Relay 4 — One-touch down window
Relay 5 — Not used
Roadside Emergencies
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Supplement(supplement), 1st Printing
USA(fus)