UNDERSTANDING YOUR INSTRUMENT PANEL
CONTENTS
INSTRUMENT CLUSTER ..................102
WARNING AND INDICATOR LIGHTS ........107
▫ Yellow Telltale Indicator Lights .............107
INSTRUMENT CLUSTER DISPLAY ...........109
▫ Oil Life Reset ..........................111
▫ Fuel Filter Life Reset .....................112
▫ Diesel Particulate Filter (DPF) Messages ......113▫
Instrument Cluster Display Messages ........115
▫ Cold Ambient Derate Mode Messages ........116
▫ Diesel Exhaust Fluid (DEF) Warning Messages . .116
▫ Diesel Exhaust Fluid (DEF) Fault Warning
Messages .............................117
▫ RAM Active Air System ..................118
4
3. Speedometer•Indicates vehicle speed.
4. Fuel Gauge •The pointer shows the level of fuel in the fuel tank
when the ignition switch is in the ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel filler door is located.
5. DEF Gauge •The DEF Gauge displays the actual level of Diesel
Exhaust Fluid in the DEF tank. Diesel Exhaust Fluid
(DEF) is required to maintain normal vehicle operation
and emissions compliance. If something is wrong with
the gauge, a DEF Warning Message or Malfunction
Indicator Light (MIL) will be displayed. More infor-
mation is available in the Instrument Cluster Display
section under the heading of Diesel Exhaust Fluid
(DEF) Warning Messages.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
(Continued)
WARNING! (Continued)
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Maintaining Your Ve-
hicle.” Follow the warnings under the “Cooling Sys-
tem Pressure Cap” paragraph.
CAUTION!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reads “H”
pull over and stop the vehicle. Idle the vehicle with the
air conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on the
“H”, turn the engine off immediately and call an
authorized dealer for service.
NOTE:
• The gauge may take up to five seconds to update after
adding a gallon or more of Diesel Exhaust Fluid (DEF) to
the DEF tank. If you have a fault related to the DEF
system, the gauge may not update to the new level. See
your authorized dealer for service.
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UNDERSTANDING YOUR INSTRUMENT PANEL 103
1. Tachometer•Indicates the engine speed in revolutions per minute
(RPM x 1000).
2. Engine Coolant Temperature •This gauge shows the engine coolant temperature. The
gauge pointer will likely show higher temperatures
when driving in hot weather, up mountain grades, or
in heavy stop and go traffic. If the red Warning Light
turns on while driving, safely bring the vehicle to a
stop, and turn off the engine. DO NOT operate the
vehicle until the cause is corrected.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Maintaining Your Ve-
hicle.” Follow the warnings under the “Cooling Sys-
tem Pressure Cap” paragraph.
CAUTION!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reads “H”
pull over and stop the vehicle. Idle the vehicle with the
air conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on the
“H”, turn the engine off immediately and call an
authorized dealer for service.
3. Oil Pressure Gauge •The pointer should always indicate some oil pressure
when the engine is running. A continuous high or low
reading under normal driving conditions may indicate
a lubrication system malfunction. Immediate service
should be obtained from an authorized dealer.
4. Speedometer •Indicates vehicle speed.
5. Fuel Gauge •The pointer shows the level of fuel in the fuel tank
when the ignition switch is in the ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel filler door is located.
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UNDERSTANDING YOUR INSTRUMENT PANEL 105
6. Instrument Cluster Display•When the appropriate conditions exist, this display
shows the Instrument Cluster Display messages. Refer
to “Instrument Cluster Display” in “Understanding
Your Instrument Panel” for further information.
7. DEF Gauge •The DEF Gauge displays the actual level of Diesel
Exhaust Fluid in the DEF tank. Diesel Exhaust Fluid
(DEF) is required to maintain normal vehicle operation
and emissions compliance. If something is wrong with
the gauge, a DEF Warning Message or Malfunction
Indicator Light (MIL) will be displayed. More infor-
mation is available in the Instrument Cluster Display
section under the heading of Diesel Exhaust Fluid
(DEF) Warning Messages.
NOTE:
• The DEF tank on these vehicles is designed with a large
amount of full reserve. So the level sensor will indicate a
full reading even before the tank is completely full. To
put it another way, there’s additional storage capacity in
the tank above the Full mark that’s not represented in
the gauge. You may not see any movement in the
reading – even after driving up to 2,000 miles in some
cases. •
The gauge may take up to five seconds to update after
adding a gallon or more of Diesel Exhaust Fluid (DEF) to
the DEF tank. If you have a fault related to the DEF
system, the gauge may not update to the new level. See
your authorized dealer for service.
• The DEF gauge may also not immediately update after a
refill if the temperature of the DEF fluid is below 12F
(-11C). The DEF line heater will possibly warm up the
DEF fluid and allow the gauge to update after a period
of run time. Under very cold conditions, it is possible
that the gauge may not reflect the new fill level for
several drives.
• Outside temperature can affect DEF consumption. In
cold conditions, 12° F (-11° C) and below, the DEF gauge
needle can stay on a fixed position and may not move
for extended periods of time. This is a normal function of
the system.
CAUTION!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reads “H”
pull over and stop the vehicle. Idle the vehicle with the
(Continued)
106 UNDERSTANDING YOUR INSTRUMENT PANEL
CAUTION!(Continued)
air conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on the
“H”, turn the engine off immediately and call an
authorized dealer for service.
WARNING AND INDICATOR LIGHTS
IMPORTANT: The warning / indicator lights switch on in
the instrument panel together with a dedicated message
and/or acoustic signal when applicable. These indications are indicative and precautionary and as such must not be
considered as exhaustive and/or alternative to the infor-
mation contained in the Owner ’s Manual, which you are
advised to read carefully in all cases. Always refer to the
information in this chapter in the event of a failure indica-
tion.
All active telltales will display first if applicable. The
system check menu may appear different based upon
equipment options and current vehicle status. Some tell-
tales are optional and may not appear.
Yellow Telltale Indicator Lights
Wait To Start Light — If Equipped
Yellow Telltale
Light What It Means
Wait To Start Light
The “Wait To Start” telltale will illuminate for approximately two seconds when the ignition is
turned to the RUN position. It’s duration may be longer based on colder operating conditions.
Vehicle will not initiate start until telltale is no longer displayed. Refer to “Starting Procedures”
in “Starting and Operating” for further information.
NOTE:
The “Wait To Start” telltale may not illuminate if the intake manifold temperature is
warm enough.
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UNDERSTANDING YOUR INSTRUMENT PANEL 107
3. Push and release theRIGHTarrow button to access
the ”Fuel Filter Life” screen.
4. Push and release the appropriate arrow button to access the “Reset” screen.
5. Push and release the appropriate arrow to select the reset of the Fuel Filter Life.
6. Push and release the UP
arrow button to exit the
Instrument Cluster Display screen.
NOTE: If the indicator message illuminates when you start
the vehicle, the Fuel Filter indicator system did not reset. If
necessary, repeat this procedure.
Diesel Particulate Filter (DPF) Messages
The Cummins diesel engine meets all diesel emissions
standards, resulting in one of the lowest emitting diesel
engines ever produced. To achieve these emissions stan-
dards, your vehicle is equipped with a state-of-the-art
engine and exhaust system. These systems are seamlessly
integrated into your vehicle and managed by the Pow-
ertrain Control Module (PCM). The PCM manages engine
combustion to allow the exhaust system’s catalyst to trap
and burn Particulate Matter (PM) pollutants, with no input
or interaction on your part.
WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be grass
or leaves coming into contact with your exhaust sys-
tem. Do not park or operate your vehicle in areas where
your exhaust system can contact anything that can
burn.
Your vehicle has the ability to alert you to additional
maintenance required on your vehicle or engine. The
following messages may display in your Instrument Clus-
ter Display:
• Perform Service — Your vehicle will require emissions
maintenance at a set interval. To help remind you when
this maintenance is due, the Instrument Cluster Display
will display “Perform Service”. When the “Perform
Service” message is displayed in the Instrument Cluster
Display it is necessary to have the emissions mainte-
nance performed. Emissions maintenance may include
replacing the Closed Crankcase Ventilation (CCV) filter
element. The procedure for clearing and resetting the
Perform Service indicator message is located in the
appropriate Service Information.
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UNDERSTANDING YOUR INSTRUMENT PANEL 113
Cold Ambient Derate Mode Messages
The vehicle will display messages when a derate (engine
power reduction) is activated to protect the turbocharger
during engine start up in cold ambient temperatures.
•Engine Power Reduced During Warmup — This mes-
sage will display during start up when the ambient
temperature is between 10° F (-12° C) and -10° F (-23° C).
• Engine Power Reduced Up To 30 Sec (Seconds) During
Warmup — This message will display during start up
when the ambient temperature is between -10° F (-23° C)
and -25 F (-32° C).
• Engine Power Reduced Up To 2 Min (Minutes) During
Warmup — This message will display during start up
when the ambient temperature is -25° F (-32° C) and
below.
• Coolant Low — This telltale will turn on to indicate the
vehicle coolant level is low. See “Adding Coolant” under
the section “Maintaining Your Vehicle” for more infor-
mation.
Diesel Exhaust Fluid (DEF) Warning Messages
Your vehicle will begin displaying warning messages when
the DEF level reaches a driving range of approximately 350 miles (560 km). If the following warning message
sequence is ignored, your vehicle may be limited to a
maximum speed of 5 MPH (8 km/H) unless DEF is added.
•
DEF Low Refill Soon — This message will display
when the low level is reached, during vehicle start up,
and with increased frequency during vehicle operation.
It will be accompanied by a single chime. Approximately
5 gallons (19 Liters) of DEF is required to refill the tank
when this message is initially displayed. on pickup
applications, and approximately 7 gallons (28 Liters) are
required on chassis-cab applications.
• Speed Limited to 5 MPH in XXX mi Refill DEF — This
message will continuously display if the “DEF Low
Refill Soon” message is ignored, and the frequency of
occurance of the chime will increase unless up to
2 gallons (7.5 Liters) of DEF is added to the tank.
• 5 MPH Max Speed on Restart, Long Idle or Refuel
Refill DEF — This message will continuously display
when the counter reaches zero, and will be accompanied
by a periodic chime.
• The vehicle will only be capable of a maximum speed of
5 MPH upon the first of the following conditions to
occur:
116 UNDERSTANDING YOUR INSTRUMENT PANEL
•If the vehicle is shutoff and restarted.
• If the vehicle is idled for an extended period of time,
approximately one hour or greater.
• If the system detects that the level of fuel in the tank
has increased.
• Add a minimum of 2 gallons (9.5 Liters) of DEF to the
tank in order to avoid vehicle operation at a maximum
speed of 5 MPH (8 km/H).
NOTE: A minimum of 2 gallons (9.5 Liters) may be
required to restore normal vehicle operation. Although the
vehicle will start normally and can be placed in gear after
this message has been initially displayed, extreme caution
should be utilized since the vehicle will only be capable of
maneuvering at a maximum speed of 5 MPH (8 km/H).
Diesel Exhaust Fluid (DEF) Fault Warning
Messages
There are five different messages which are displayed if the
vehicle detects that the DEF system has been filled with a
fluid other than DEF, has experienced component failures,
or when tampering has been detected. The vehicle may be
limited to a maximum speed of 5 MPH (8 km/H) if the
DEF system is not serviced within less than 200 miles
(322 km) of the fault being detected. When the DEF system needs to be serviced the following
warnings will display:
•
Service DEF System See Dealer — This message will
display when the fault is initially detected, each time the
vehicle is started, and periodically during driving. The
message will be accompanied by a single chime. We
recommend you drive to your nearest authorized dealer
and have your vehicle serviced as soon as possible.
• 5 MPH Max Speed in 150 mi Service DEF System See
Dealer — This message will display if the DEF system
has not been serviced after the “Service DEF System –
See Dealer” message is displayed. This message will
continuously display until the mileage counter reaches
zero, and will be accompanied by a periodic chime. The
message will continue to countdown until it reaches zero
unless the vehicle is serviced. We recommend you drive
to your nearest authorized dealer and have your vehicle
serviced immediately.
NOTE: Under some circumstances this mileage counter
may start with a value of less than 150 miles (241 km). For
example, if recurring faults are detected in a time interval
of less than 40 hours, the counter may restart at the value
where it stopped when a previous fault was temporarily
remedied, or at a minimum of 50 miles (80 km).
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UNDERSTANDING YOUR INSTRUMENT PANEL 117