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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 BeltAir Bag-Front
Air Bag-SideChild Seat
Child Seat Installation
WarningChild Seat Tether
Anchorage
Brake SystemAnti-Lock Brake System
Brake Fluid -
Non-Petroleum BasedTraction Control
Master Lighting SwitchHazard Warning Flasher
Fog Lamps-FrontFuse Compartment
Fuel Pump ResetWindshield Wash/Wipe
Windshield
Defrost/DemistRear Window
Defrost/Demist
Power Windows
Front/RearPower Window Lockout
Introduction
4
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WARNING LIGHTS AND CHIMES
Air clean warning (if equipped)
Illuminates when the ignition is
turned to the ON position and the
engine is off. The light also
illuminates when the air system is
restricted (dirty, clogged).
Brake reserve system warning (if equipped)
Illuminates to indicate normal
Hydromax booster reserve system
activation when the engine is OFF
and the service brake pedal is
applied, or when the ignition is in
the ON or START position.
This light may also illuminate momentarily if the engine is running and
the driver turns the steering wheel fully in one direction while braking.
If the light remains on while the engine is running, this indicates
inadequate hydraulic booster pressure or reserve pump system failure.
Stop the vehicle safely as soon as possible and seek service immediately.
Charging system
Illuminates when the ignition is
turned to the ON position and the
engine is off. The light also
illuminates when there is no
alternator output, or an over voltage
condition requiring electrical system service.
BRAKE
0
000000000
MPH20km/h
406080
100
120
140
160
010 20304050
60
70
80
90
100
TRAILERWATER
IN
FUELWAIT
TO
START
STOP
ENGINE
ENGINE
PROTECT
AIR
CLEAN
CHECK
TRANSRANGE
INHIBITSERVICE
ENGINE
SOONCRUISE
LEF
H
RPM1000
DIESEL FUEL ONLY
X012
3
4PRN 218C 18
H
D
BRAKEBRAKE
AIR
CLEAN
BRAKE
Instrumentation
10
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the anti-lock brake system is disabled and normal braking is still effective
unless the brake warning light also remains illuminated.
Wait to start
Indicates the air intake heater is in
operation and special starting
procedures are required. Refer to
theStartingchapter.
If equipped with an air
intake heater, DO NOT use
ether or any other starting fluids.
The use of starting fluids (ether)
in an engine equipped with an air
intake heater could result in
damage and/or personal injury.
Water in fuel (if equipped)
During refueling it is possible for
water-contaminated diesel fuel to be
pumped into your fuel tank. Your
vehicle fuel system is equipped with
a fuel filter/water separator to
remove water from the fuel. The
water in fuel indicator light
illuminates when the fuel
filter/water separator has a
significant quantity of water, or when the ignition key is switched to the
START position. If the light illuminates when the engine is running, stop
the vehicle as soon as safely possible, shut off the engine and drain the
filter bowl. Allowing water to stay in the system could result in extensive
damage to, or failure of, the fuel injection system.
To drain the fuel filter/water separator (refer toMaintenance and Care
section for procedure). Rotate the valve at the bottom of the filter
assembly allowing water to drain from the system. Close the valve upon
completion.
Do not drain water separator while engine is running. Fuel may
ignite if separator is drained while engine is running or vehicle is
moving.
WAIT
TO
START
WATER
IN
FUEL
Instrumentation
13
Page 14 of 208

Check trans (Allison automatic transmission)
The lamp will illuminate for several
seconds after the ignition is turned
to the ON position. Illumination of
this light indicates that a problem
has been detected and shifting may
be restricted. Depending upon the
severity of the problem, the
read-out digit on the shifter display
may be blank. Operation may
continue in order or reach service assistance. The ECU may not respond
to shift selector requests, since operating limitations are being placed on
the transmission, i.e. upshifts and downshifts may be restricted.
Direction changes will not occur.
Refer to theMaintenance and Carechapter.
Safety belt
Momentarily illuminates when the
ignition is turned to the ON position
to remind you to fasten your safety
belts. For more information, refer to
theSeating and safety restraints
chapter.
Service engine soon
TheService Engine Soonindicator
light illuminates when the ignition is
first turned to the ON position to
check the bulb. If it comes on after
the engine is started, one of the
engine’s control systems may be
malfunctioning. The light may illuminate without a driveability concern
being noted. The vehicle will usually be drivable and will not require
towing.
Temporary malfunctions may cause yourService Engine Soonlight to
illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may misfire or run
poorly.)
2. Poor fuel quality or water in the fuel.
CHECK
TRANS
SERVICE
ENGINE
SOON
Instrumentation
14
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These and other temporary malfunctions can be corrected by filling the
fuel tank with good quality fuel. After three driving cycles without these
or any other temporary malfunctions present, theService Engine Soon
light should turn off. (A driving cycle consists of a cold engine startup
followed by mixed city/highway driving.) No additional vehicle service is
required.
If theService Engine Soonlight remains on, have your vehicle serviced
at the first available opportunity.
Under engine misfire conditions, excessive exhaust temperatures
could damage the fuel system, interior floor coverings or other
vehicle components, possibly causing a fire.
Key-in-ignition warning chime
Sounds when the ignition key is left in the ignition in the OFF/LOCK or
ACC position and the driver’s door is opened.
Headlamps on warning chime
Sounds when the headlamps or parking lamps are on, the ignition is off
(and the key is not in the ignition) and the driver’s door is opened.
Safety belt warning chime
Sounds to remind you to fasten your safety belts.
For information on the safety belt warning chime, refer to theSeating
and safety restraintschapter.
Instrumentation
15
Page 16 of 208

GAUGES
Fuel gauge
Displays approximately how much
fuel is in the fuel tank (when the
key is in the ON position). The fuel
gauge may vary slightly when the
vehicle is in motion. The ignition
should be in the OFF position while
the vehicle is being refueled. When
the gauge first indicates empty,
there is a small amount of reserve
fuel in the tank. When refueling the
vehicle from an empty indication, the amount of fuel that can be added
will be less than the advertised capacity due to the reserve fuel.
Engine coolant temperature gauge
Indicates the temperature of the
engine coolant. At normal operating
temperature, the needle remains
within the normal area (the area
between the“H”and“C”). If it
enters the red section, the engine is
overheating. Stop the vehicle as
soon as safely possible, switch off
the engine immediately and let the
engine cool. Refer toEngine
coolantin theMaintenance and
carechapter.
BRAKE
0
000000000
MPH20km/h
406080
100
120
140
160
010 20304050
60
70
80
90
100
TRAILERWATER
IN
FUELWAIT
TO
START
STOP
ENGINE
ENGINE
PROTECT
AIR
CLEAN
CHECK
TRANSRANGE
INHIBITSERVICE
ENGINE
SOONCRUISE
LEF
H
RPM1000
DIESEL FUEL ONLY
X012
3
4PRN 218C 18
H
D
BRAKEBRAKE
EF
H
C
Instrumentation
16
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Trip odometer
Registers the kilometers (miles) of
individual journeys. To reset,
depress the control.
Tachometer
Indicates the engine speed in
revolutions per minute.
Driving with your tachometer
pointer in the red zone may damage
the engine.
Battery voltage gauge
This shows the battery voltage when
the ignition is in the ON position. If
the pointer moves and stays outside
the normal operating range (as
indicated), have the vehicle’s
electrical system checked as soon as
possible.
0
000000000
MPH
20km/h
406080
100
120
140
160
0
10 20304050
60
70
80
90
100
RPM1000
DIESEL FUEL ONLY
X012
3
4
818
Instrumentation
18
Page 78 of 208

If equipped with an air intake heater, DO NOT use ether or any
other starting fluids. The use of starting fluids (ether) in an
engine equipped with an air intake heater could result in damage
and/or personal injury.
4. Do not depress the accelerator during starting the engine.
5. Start the engine.
If the engine does not start after 30 seconds of cranking, allow two
minutes for the starter to cool before trying again. Excessive cranking
may damage the starter.
After the engine starts:
•On some engines, the Wait to
Start light should illuminate after
the engine starts. Allow the
engine to idle about three
minutes or until the engine
coolant temperature gauge begins
to rise. Maintain idle speed until
the Wait to Start light cycles off
to indicate the air intake heater
has shut off (approximately six minutes). Operating the engine at
higher speeds will reduce the effectiveness of the air inlet heater.
•Do not increase engine speed
until the oil pressure gauge
indicates normal pressure.
•Ensure engine oil pressure is
indicated on the gauge within 15
seconds after starting.
•Idle the engine for three to five
minutes before operating with a
full load.
•Try to limit engine idle to 10
minutes. Excessive idling reduces fuel economy.
•When starting a cold engine, increase the engine speed (RPM) slowly
to make sure adequate lubrication is available to the bearings.
WAIT
TO
START
L
H
Starting
78