
To set the foot pedal parking brake, hold the regular
brake pedal down with your right foot. Push down
the parking brake pedal with your left foot.
To set the hand lever parking brake, hold the regular
brake pedal down with your right foot. Pull up on
the handle with your right hand, until it stops.
If the ignition is on when the parking brake is set, the
brake system warning light will come on.
To release the foot pedal parking brake, hold the
regular brake pedal down. Pull the brake release handle,
located just above the parking brake pedal, to release
the parking brake.
To release the hand lever parking brake, hold the
regular brake pedal down and push down on the handle
until it stops.
If the ignition is on when the parking brake is released,
the brake system warning light will go off.Propshaft Brake Burnish Procedure
It is recommended that the propshaft-mounted parking
brake be burnished as part of the new vehicle break-in.
The parking brake will work best after it has been
burnished following these instructions:
Make 10 stops, using the parking brake hand lever or
foot pedal, from 20 mph (32 km/h) about 2 1/2 miles
(4 km) apart. Between stops, drive the vehicle at 20 mph
(32 km/h) to allow the brake to cool.
Notice:Driving with the parking brake on can
damage the transmission and brake system parts.
Verify that the parking brake is fully released and the
brake warning light is off before driving.
2-41

Rear Wheel Park Brake Burnish
Procedure
It is recommended that the rear wheel mounted parking
brake be burnished as part of the new vehicle
break-in. The parking brake will work best after it has
been burnished following these instructions:
Make one or two stops using the parking brake hand
lever or foot pedal from 55 mph (92 km/h) to a stop
with moderate apply. Each stop should occur within
1/4 of a mile.
Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Verify that
the parking brake is fully released and the brake
warning light is off before driving.
Air Brake
If your vehicle has air
brakes, you will have this
parking brake. It is
located above the radio in
the instrument panel.
Pulling it out applies the parking brake. The parking
brake light will come on when the air parking brake is
applied.
2-42

For driving with a trailer, the yellow and red, if equipped,
knobs must be pushed in. When you are not pulling a
trailer, the red trailer air supply knob must be pulled out.
{CAUTION:
If you apply any one of the air brake parking
controls while the vehicle is moving, your rig
will stop suddenly. If you are not ready for this,
you or others could be injured. Do not apply any
one of these controls while you are driving,
unless you have to make an emergency stop.
If the air pressure drops below 60 to 70 psi
(413 to 482 kPa), the primary brake light and warning
buzzer will come on. If the air pressure drops to
35 to 45 psi (241 to 310 kPa), the red trailer air supply
knob will automatically pop out and apply the spring
brakes on the trailer.
If the air pressure drops to 35 to 45 psi (241 to 310 kPa),
the yellow park brake knob will automatically pop out
and apply the spring brakes on the truck or tractor.
If you ever have a complete loss of air so that your air
brakes automatically apply, there is a way that the
tow operator can release the parking brakes to tow the
vehicle. SeeTowing Your Vehicle on page 4-37.
Air Suspension
Your vehicle may have the Hendrickson HAS Series
single-axle air suspension which is designed for a
single-axle on-highway use. This feature is available in
19,000 lb (8 613.3 kg), 21,000 lb (9 525.4 kg) and
23,000 lb (10 432.6 kg) capacities.
Rear Air Suspension Dump Control
If your vehicle is equipped with the Hendrickson HAS
Series single-axle air suspension, you may have
this control. The air suspension dump control allows the
operator to lower the deck height approximately
4.5 inches (11.5 cm) from the normal frame height.
The switch to deflate and
inflate the air suspension
is located in the instrument
panel.
Press the bottom of the switch to deflate the air
suspension and lower the deck height. Press the top of
the switch to return the suspension to normal deck height.
An indicator light will come on and stay on whenever
the switch is in the dumped position.
2-44

Outside Convex Mirrors
{CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right or left lane,
you could hit a vehicle. Check your regular
outside mirrors (or your inside mirror, if you
have one) before changing lanes.
Your vehicle may have convex mirrors on both the
driver’s side and the passenger’s side. They are curved
to allow more to be seen from the driver’s seat. A
convex mirror can make things look farther away than
they really are.
Outside Heated Mirrors
If your vehicle has this feature, your outside rearview
mirrors can be defrosted.
The switch for this feature
is located in the instrument
panel switchbank.
Push the bottom of the switch to turn the outside heated
rearview mirrors on. The switch indicator light will
come on and stay on whenever the outside heated
rearview mirrors are activated.
If your vehicle has a crew cab, your vehicle may be
equipped with a rear window defogger. It will also come
on each time the outside heated mirror feature is
activated. See “Rear Window Defogger” underClimate
Control System on page 3-20.
2-48

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-8
Windshield Wipers..........................................3-9
Windshield Washer.......................................3-10
Cruise Control..............................................3-10
Exterior Lamps.............................................3-14
Headlamps on Reminder................................3-15
Daytime Running Lamps (DRL).......................3-15
Marker Lamps..............................................3-16
Instrument Panel Brightness...........................3-16
Dome Lamps ...............................................3-16
Entry Lighting...............................................3-17
Reading Lamps............................................3-17
Instrument Panel Switchbank..........................3-18
Accessory Power Outlet(s).............................3-19
Ashtray(s) and Cigarette Lighter......................3-20Climate Controls............................................3-20
Climate Control System.................................3-20
Outlet Adjustment.........................................3-24
Rear Heating System....................................3-24
Warning Lights, Gages, and Indicators............3-25
Instrument Panel Cluster................................3-26
Speedometer and Odometer...........................3-27
Trip Odometer..............................................3-27
Tachometer.................................................3-27
Engine Speed Limiter....................................3-28
Safety Belt Reminder Light.............................3-28
Safety Belt Reminder Tone............................3-28
Airbag Readiness Light..................................3-29
Airbag Off Light............................................3-30
Charging System Light..................................3-31
Voltmeter Gage............................................3-32
Service Transmission Warning Light................3-32
Range Inhibit Warning Indicator......................3-33
Brake System Warning Light..........................3-33
Anti-Lock Brake System Warning Light.............3-35
Trailer Anti-Lock Brake System Warning Light . . .3-36
Engine Coolant Temperature Gage..................3-36
Section 3 Instrument Panel
3-1

Low Coolant Warning Light............................3-37
Wait to Start Indicator (Diesel Engine).............3-37
Malfunction Indicator Lamp.............................3-38
Oil Pressure Gage........................................3-38
Low Oil Level Light.......................................3-39
Change Engine Oil Light................................3-40
Engine Overspeed Warning Light....................3-40
Engine Shutdown Warning Light.....................3-40
Transmission Temperature Gage.....................3-41
Exhaust Brake Indicator Light.........................3-41
Differential Lock Indicator Light.......................3-42
Reduced Engine Power Light.........................3-42
Highbeam On Light.......................................3-43
Daytime Running Lamps (DRL)
Indicator Light...........................................3-43
Low Washer Fluid Warning Light.....................3-44
Check Gages Warning Light...........................3-44Fuel Gage...................................................3-45
Water in Fuel Warning Light...........................3-46
Air Filter Restriction Indicator..........................3-46
Air Pressure Gage........................................3-47
Hourmeter Gage...........................................3-47
Audio System(s).............................................3-48
Setting the Time...........................................3-49
AM-FM Radio...............................................3-50
Radio with Cassette......................................3-53
Radio with CD..............................................3-59
Theft-Deterrent Feature (Non-RDS Radios).......3-64
Radio Reception...........................................3-64
Care of the Cassette Tape Player...................3-65
Care of Your CDs.........................................3-66
Care of the CD Player...................................3-67
Fixed Mast Antenna......................................3-67
Chime Level Adjustment................................3-67
Section 3 Instrument Panel
3-2

A. Air Outlets. SeeOutlet Adjustment on page 3-24.
B. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-26.
C. Shift Lever. SeeAutomatic Transmission Operation
on page 2-30orManual Transmission Operation
on page 2-31.
D. Air Brake Controls. SeeAir Brake on page 2-42.
E. Transfer Case Controls (If Equipped). See
Four-Wheel Drive on page 2-35. Air Filter Gage
(If Equipped). SeeAir Filter Restriction Indicator on
page 3-46.
F. Auxiliary Gages. SeeWarning Lights, Gages, and
Indicators on page 3-25.
G. Exterior Lamp Control. SeeExterior Lamps on
page 3-14.H. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
I. Hazard Warning Flashers Button. SeeHazard
Warning Flashers on page 3-6.
J. Audio System(s). SeeAudio System(s) on
page 3-48.
K. Climate Controls. SeeClimate Control System on
page 3-20.
L. Instrument Panel Switchbank. SeeInstrument Panel
Switchbank on page 3-18.
M. Airbag Off Switch. SeeAirbag Off Switch on
page 1-58.
N. Accessory Power Outlets. SeeAccessory Power
Outlet(s) on page 3-19.
3-5

Turn and Lane-Change Signals
The turn signal has two upward (for right) and
two downward (for left) positions. These positions allow
you to signal a turn or a lane change.
To signal a turn, move the lever all the way up or down.
When the turn is finished, the lever will return
automatically.
An arrow on the instrument
panel cluster will flash in
the direction of the
turn or lane change.
To signal a lane change, just raise or lower the lever
until the arrow starts to flash. Hold it there until you
complete your lane change. The lever will return by itself
when you release it.As you signal a turn or a lane change, if the arrows
don’t flash but just stay on, check the turn signal flasher
and circuit breaker. SeeFuses and Circuit Breakers
on page 5-93.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows don’t go on at all when you signal a
turn, check the circuit breaker and for burned-out bulbs.
Headlamp High/Low-Beam Changer
To change the headlamps from low to high beam or
high to low beam, pull the multifunction lever all the way
toward you, then release it.
When the high beams are
on, this light on the
instrument panel cluster
will also be on.
3-8