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Adding Diesel Exhaust Fluid
The DEF gauge (located on the instrument cluster) will
display the level of DEF remaining in the tank. Refer to
“Instrument Cluster” and “Instrument Cluster Descrip-
tions” in “Understanding Your Instrument Panel” for fur-
ther information.
NOTE:
•Driving conditions (altitude, vehicle speed, load, etc.)
will effect the amount of DEF that is used in your
vehicle.
• Another factor is that 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.
• There is an electric heater inside the DEF tank that
automatically works when necessary. And if the DEF
supply does freeze, the truck will operate normally until
it thaws.
DEF Fill Procedure
NOTE: Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for the correct fluid type.
1. Remove cap from DEF tank (located on drivers side of the vehicle or in fuel door).
DEF Filler Cap And Fuel Fill 1500/2500/3500 Models
1 — Diesel Exhaust Fluid Fill Location
2 — Fuel Fill Location
4
STARTING AND OPERATING 49
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Intervention Regeneration Strategy — Message
Process Flow
This engine meets all required diesel engine emissions
standards. To achieve these emissions standards, 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 Powertrain 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 inter-
action on your part.
Additionally, your vehicle has the ability to alert you to
additional maintenance required on your vehicle or engine.
Refer to “Instrument Cluster Display” in “Understanding
Your Instrument Panel” for further information.
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.
Maintenance-Free Batteries
Your vehicle is equipped with a maintenance-free battery.
The top of the maintenance-free battery is permanently
sealed. You will never have to add water, nor is periodic
maintenance required.
WARNING!
Battery posts, terminals, and related accessories con-
tain lead and lead compounds. Always wash hands
after handling the battery.
CAUTION!
It is essential when replacing the cables on the battery
that the positive cable is attached to the positive post
and the negative cable is attached to the negative post.
Battery posts are marked (+) positive and negative (-)
and are identified on the battery case. Also, if a “fast
charger” is used while the battery is in vehicle, discon-
nect both vehicle battery cables before connecting the
charger to the battery. Do not use a “fast charger” to
provide starting voltage.
64 MAINTAINING YOUR VEHICLE
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MAINTENANCE SCHEDULE
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Operating conditions such as
frequent short-trips, trailer tow, extremely hot or cold
ambient temperatures will influence when the “Oil Change
Required” message is displayed. Severe Operating Condi-
tions can cause the change oil message to illuminate as
early as 3,500 miles (5,600 km) since last reset. Have your
vehicle serviced as soon as possible, within the next
500 miles (805 km).
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other thanyour authorized dealer, the message can be reset by
referring to the steps described under “Instrument Cluster
Display” in “Understanding Your Instrument Panel” for
further information.
NOTE:
Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km) or twelve months,
whichever comes first.
Once A Month Or Before A Long Trip:
• Check engine oil level
• Check windshield washer fluid level
• Check the tire inflation pressures and look for unusual
wear or damage
• Check the fluid levels of the coolant reservoir, brake
master cylinder, and power steering, and fill as needed
• Check function of all interior and exterior lights
78 MAINTENANCE SCHEDULE
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Remote Start Abort Message
The following messages will display in the Instrument
Cluster Display if the vehicle fails to remote start or exits
remote start prematurely:
•Remote Start Aborted - Door Open
• Remote Start Aborted - Hood Open
• Remote Start Aborted - Fuel Low
• Remote Start Aborted - System Fault
The Instrument Cluster Display message stays active until
the ignition is placed in the ON/RUN position.
To Enter Remote Start Mode
Push and release the REMOTE START button on
the key fob twice, within five seconds. The
parking lights will flash and the horn will chirp
twice (if programmed). In cold ambient tempera-
ture conditions, the diesel vehicle may delay crank up to 30
seconds for the fuel and grid heater. Once the vehicle has
started, the engine will run for 15 minutes or 75 seconds in
extreme cold and high elevation. NOTE:
•
The park lamps will turn on and remain on during
Remote Start mode.
• For security, power window and power sunroof opera-
tion (if equipped) are disabled when the vehicle is in the
Remote Start mode.
• The engine can be started two consecutive times (two
15-minute cycles) with the key fob. However, the igni-
tion switch must be cycled to the ON position before you
can repeat the start sequence for a third cycle.
To Exit Remote Start Mode Without Driving The
Vehicle
Push and release the REMOTE START button one time or
allow the engine to run for the entire fifteen minute cycle.
NOTE: To avoid unintentional shut downs, the system
will disable the one time push of the REMOTE START
button for two seconds after receiving a valid Remote Start
request.
To Exit Remote Start Mode And Drive The Vehicle
To exit Remote Start Mode and drive the vehicle before the
end of the 15-minute cycle, push and release the unlock
button on the key fob to unlock the door and disarm the
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 93
Page 96 of 228

Vehicle Security Alarm System (if equipped). Then, prior to
the end of the 15-minute cycle, place the ignition to the
ON/RUN position.
NOTE:The ignition switch must be in the ON/RUN
position in order to drive the vehicle.
Remote Start Comfort Systems — If Equipped
When remote start is activated, the heated steering wheel,
and driver heated seat features will automatically turn on
in cold weather. In warm weather, the driver vented seat
feature will automatically turn on when the remote start is
activated. These features will stay on through the duration
of remote start or until the ignition switch is turned to the
ON/RUN position.
The Remote Start Comfort System can be activated and
deactivated through the Instrument Cluster Display. For
more information on Remote Start Comfort System opera-
tion refer to your Owners Manual.
ENGINE BREAK-IN RECOMMENDATIONS
The Cummins turbocharged diesel engine does not require
a break-in period due to its construction. Normal operation
is allowed, providing the following recommendations are
followed: •
Warm up the engine before placing it under load.
• Do not operate the engine at idle for prolonged periods.
• Use the appropriate transmission gear to prevent engine
lugging.
• Observe vehicle oil pressure and temperature indicators.
• Check the coolant and oil levels frequently.
• Vary throttle position at highway speeds when carrying
or towing significant weight.
NOTE: Light duty operation such as light trailer towing or
no load operation will extend the time before the engine is
at full efficiency. Reduced fuel economy and power may be
seen at this time.
For additional vehicle break-in requirements, refer to
“Trailer Towing” in “Starting And Operating” of the Own-
ers Manual.
Because of the construction of the Cummins turbocharged
diesel engine, engine run-in is enhanced by loaded oper-
ating conditions which allow the engine parts to achieve
final finish and fit during the first 6,000 miles (10 000 km).
94 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
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ELECTRONIC SPEED CONTROL
When engaged, the Electronic Speed Control takes over
accelerator operations at speeds greater than 25 mph
(40 km/h).
The Electronic Speed Control buttons are located on the
right side of the steering wheel.NOTE:
In order to ensure proper operation, the Electronic
Speed Control System has been designed to shut down if
multiple speed control functions are operated at the same
time. If this occurs, the Electronic Speed Control System
can be reactivated by pushing the Electronic Speed Control
ON/OFF button and resetting the desired vehicle set
speed.
To Activate
Push the on/off button. The cruise control set indicator
light in the instrument cluster display will illuminate. To
turn the system off, push the on/off button a second time.
The cruise control set indicator light will turn off. The
system should be turned off when not in use.
WARNING!
Leaving the Electronic Speed Control system on when
not in use is dangerous. You could accidentally set the
system or cause it to go faster than you want. You could
lose control and have an accident. Always leave the
system off when you are not using it.
Electronic Speed Control Switches
1 — ON/OFF 3 — SET -
2 — RES + 4 — CANCEL
96 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
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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
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INSTRUMENT CLUSTER
1. Tachometer•Indicates the engine speed in revolutions per minute
(RPM x 1000). 2. 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.
Instrument Cluster
102 UNDERSTANDING YOUR INSTRUMENT PANEL