2021 RAM CHASSIS CAB fuel

94GETTING TO KNOW YOUR INSTRUMENT PANEL
Fuel Economy
Push and release the up or down arrow
button until the Fuel Economy menu item is
highlighted in the instrument cluster display.
Push and Hold the right arrow button to reset
Average Fuel Economy.
Current Fuel Economy Gauge
Average Fuel Economy Value
Range To Empty
Fuel Tank Levels — If Equipped
Trip A/Trip B
Push and release the up or down arrow
button until the Trip menu item is highlighted
in the instrument cluster display. Push and
release the right arrow button to enter the
submenus of Trip A and Trip B. The Trip A or Trip
B information will display the following:
Distance
Average Fuel Economy
Elapsed Time
Push and hold right arrow button to reset all
information.
Trailer Tow
Push and release the up or down arrow
button until the Trailer Tow menu item is
highlighted in the instrument cluster display.
Push and release the right or left arrow
button to cycle through the following trailer tow
information:
Trip (trailer specific) Distance: Push and hold
the OK button to reset the distance.
Integrated Trailer Brake Module (ITBM):
Braking Output
Trailer Type
ITBM Gain
Trailer Light Check: Push and hold the
OK button to begin the Trailer Light Test
sequence Ú page 209.
Trailer Tire Pressure Monitoring: The Instru-
ment Cluster Display will display the Trailer
Tire Pressure for a connected trailer with
sensors that match the active trailer profile.
When a low tire is present, the low tire value
will be displayed in red, and the affected low tire will have a red glow. “Trailer Tire Low“ will
be displayed on the center bottom of the
Instrument Cluster Display screen.
Audio
Push and release the
up or down arrow
button until the Audio Menu icon/title is
highlighted in the instrument cluster display.
This menu will display the audio source
information, including the Song name, Artist
name, and audio source with an accompanying
graphic.
Phone Call Status
When a call is incoming, a Phone Call Status
pop-up will display on the screen. The pop-up
will remain until the phone is answered or
ignored.
NOTE:
The call status will temporarily replace the
previous media source information displayed
on the screen. When the pop-up is no longer
displayed, the display will return to the last used
screen.

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GETTING TO KNOW YOUR INSTRUMENT PANEL95
Stored Messages
Push and release the up or down arrow
button until the Messages Menu item is
highlighted. This feature shows the number of
stored warning messages. Push and release the
right or left arrow button to cycle through
stored messages.
Screen Setup Menu Item
Push and release the up or down arrow
button until the Screen Setup menu item is
highlighted in the instrument cluster display.
Push and release the right arrow button to
enter the Screen Setup submenu. The Screen
Setup feature allows you to change what
information is displayed in the instrument
cluster as well as the location that information
is displayed.
Current Gear — If Equipped
Off
On
Odometer
Unit Without Decimal
Unit With Decimal Favorite Menu
Speedometer
Vehicle Info
Driver Assist (Show/Hide) — If Equipped
Fuel Economy (Show/Hide)
Trip Info (Show/Hide)
Trailer Tow (Show/Hide)
Audio (Show/Hide)
Messages
Screen Setup
Vehicle Settings — If Equipped
Commercial Settings — If Equipped
NOTE:
Menus with (Show/Hide) can push the right
arrow button to choose whether to show or hide
this menu in the instrument cluster display. Upper Left — If Equipped
None
Compass — If Equipped
Outside Temp — If Equipped
Time
Range To Empty
Average Econ
Current Econ
Trip A Distance
Trip B Distance
Trailer Trip — If Equipped
Trailer Brake — If Equipped
Oil Pressure — If Equipped
Coolant Temperature — If Equipped
Oil Temperature — If Equipped
Battery Voltage — If Equipped
Transmission Temperature — If Equipped
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96GETTING TO KNOW YOUR INSTRUMENT PANEL
Oil Life — If Equipped
Exhaust Brake — If Equipped
Turbo Boost — If Equipped
Fuel Filter Life — If Equipped
Center
None
Compass
Outside Temp
Time
Range To Empty
Average Econ
Current Econ
Trip A Distance
Trip B Distance
Trailer Trip — If Equipped
Audio
Speedometer
Menu Title Upper Right
None
Compass — If Equipped
Outside Temp
Time
Range To Empty
Average Econ
Current Econ
Trip A Distance
Trip B Distance
Trailer Trip — If Equipped
Trailer Brake — If Equipped
Oil Pressure — If Equipped
Coolant Temperature — If Equipped
Oil Temperature — If Equipped
Battery Voltage — If Equipped
Transmission Temperature — If Equipped
Oil Life — If Equipped
Exhaust Brake — If Equipped
Turbo Boost — If Equipped
Fuel Filter Life — If Equipped
Left Side — If Equipped
None
Range
Average Econ
Menu Icon
Coolant Temperature
Oil Temperature
Transmission Temperature
Oil Life
Fuel Filter Life — If Equipped

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GETTING TO KNOW YOUR INSTRUMENT PANEL97
Right Side — If Equipped
None
Range
Average Econ
Menu Icon
Coolant Temperature
Oil Temperature
Transmission Temperature
Oil Life
Fuel Filter Life — If Equipped
Lower Left — If Equipped
None
Compass
Outside Temp
Time
Range To Empty
Average Econ
Current Econ
Trip A Distance
Trip B Distance
Trailer Trip
Trailer Brake
Oil Pressure
Coolant Temperature
Oil Temperature
Battery Voltage
Transmission Temperature
Oil Life
Exhaust Brake — If Equipped
Turbo Boost — If Equipped
Fuel Filter Life — If Equipped
Lower Right — If Equipped
None
Compass
Outside Temp
Time
Range To Empty
Average Econ
Current Econ
Trip A Distance
Trip B Distance
Trailer Trip
Trailer Brake
Oil Pressure
Coolant Temperature
Oil Temperature
Battery Voltage
Transmission Temperature
Oil Life
Exhaust Brake — If Equipped
Turbo Boost — If Equipped
Fuel Filter Life — If Equipped
Restore Defaults
Cancel
Restore
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GETTING TO KNOW YOUR INSTRUMENT PANEL101
Commercial Settings — If Equipped
Commercial Settings allows the driver to set
and recall additional features when the
transmission is in PARK.
Push and release the up or down arrow
button until Commercial Settings displays in the
instrument cluster display.
Follow the prompts to enter the required PIN
and enter the Commercial Settings submenu.
NOTE:
If your vehicle is equipped with a touchscreen
radio, “Commercial Settings” will replace
“Vehicle Settings” in the instrument cluster
display. The Commercial Settings menu will only
include the settings below Ú page 228.Commercial Settings allows you to access the
following features (if equipped):
Power Take Off (PTO)
Remote Ignition
Idle Control
Backup Alarm
ParkSense
Aux Switches
PIN Setup
NOTE:
If the vehicle’s PIN is forgotten or not known,
see an authorized dealer to have the PIN reset.
DIESEL MESSAGES AND WARNINGS
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 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 interaction on your part.
Calibrate Compass
Compass Cal Cancel; Calibrate
Fuel Saver Display Fuel Saver On; Off
Setting NamesSetting Names Abbreviated
(Left Submenu Layer) Submenus (Right Submenu Layer)
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104GETTING TO KNOW YOUR INSTRUMENT PANEL

refill the tank when this message is initially
displayed on pickup applications, and approxi-
mately 7 gallons (26 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 occurrence 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 continu -
ously 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:
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 (7.5 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 (7.5 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 the nearest autho
-
rized 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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GETTING TO KNOW YOUR INSTRUMENT PANEL105
5 MPH Max Speed on Restart, Long Idle
or Refuel Service DEF See Dealer — This
message will continuously display when the
mileage 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:
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.
5 MPH Max Speed Service DEF System See
Dealer — This message will continuously
display, and will be accompanied by a peri -
odic chime. Although the vehicle can be
started and placed in gear, the vehicle will
only operate at a maximum speed of 5 mph.
Your vehicle will require towing, see an
authorized dealer for service.
NOTE:
When this message is displayed, the engine can
still be started. However, the vehicle will only
operate at a maximum speed of 5 mph.
Incorrect DEF Detected 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 the nearest
authorized dealer and have your vehicle
serviced as soon as possible.
RAM Active Air System

Your vehicle is equipped with an advanced
Ram Active Air system that provides enhanced
performance, especially when towing under
demanding hot or high altitude conditions. If the
instrument cluster display displays the message
“Active Airbox Service Required See Dealer”, vehicle
performance may be reduced until service is
performed by an authorized RAM dealer.

BATTERY SAVER ON/BATTERY SAVER
M
ODE MESSAGE — ELECTRICAL LOAD
R
EDUCTION ACTIONS — IF EQUIPPED
This vehicle is equipped with an Intelligent
Battery Sensor (IBS) to perform additional
monitoring of the electrical system and status
of the vehicle battery. In cases when the IBS detects charging system
failure, or the vehicle battery conditions are
deteriorating, electrical load reduction actions
will take place to extend the driving time and
distance of the vehicle. This is done by reducing
power to or turning off non-essential electrical
loads.
Load reduction is only active when the engine is
running. It will display a message if there is a
risk of battery depletion to the point where the
vehicle may stall due to lack of electrical supply,
or will not restart after the current drive cycle.
When load reduction is activated, the message
“Battery Saver On Some Systems May Have
Reduced Power” will appear in the instrument
cluster.
These messages indicate the vehicle battery
has a low state of charge and continues to lose
electrical charge at a rate that the charging
system cannot sustain.
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110GETTING TO KNOW YOUR INSTRUMENT PANEL
Door Open Warning Light
This indicator will illuminate when a
door is ajar/open and not fully closed.
NOTE:
If the vehicle is moving there will also be a single
chime.
YELLOW WARNING LIGHTS
Adaptive Cruise Control (ACC) Fault
Warning Light — If Equipped
This warning light will illuminate to
indicate a fault in the ACC system.
Contact a local authorized dealer for
service Ú page 166.
Engine Check/Malfunction Indicator
Warning Light (MIL)
The Engine Check/Malfunction
Indicator Light (MIL) is a part of an
Onboard Diagnostic System called
OBD II that monitors engine and
automatic transmission control systems. This
warning light will illuminate when the ignition
is in the ON/RUN position before engine start.
If the bulb does not come on when turning the
ignition switch from OFF to ON/RUN, have the
condition checked promptly.
Certain conditions, such as a loose or missing
gas cap, poor quality fuel, etc., may illuminate
the light after engine start. The vehicle should
be serviced if the light stays on through several
typical driving styles. In most situations, the
vehicle will drive normally and will not require
towing.
When the engine is running, the MIL may flash
to alert serious conditions that could lead to
immediate loss of power or severe catalytic
converter damage. The vehicle should be
serviced by an authorized dealer as soon as
possible if this occurs.
CAUTION!
Continuous driving with the Transmission
Temperature Warning Light illuminated will
eventually cause severe transmission
damage or transmission failure.
WARNING!
A malfunctioning catalytic converter, as
referenced above, can reach higher
temperatures than in normal operating
conditions. This can cause a fire if you drive
slowly or park over flammable substances
such as dry plants, wood, cardboard, etc.
This could result in death or serious injury to
the driver, occupants or others.
CAUTION!
Prolonged driving with the Malfunction
Indicator Light (MIL) on could cause damage
to the vehicle control system. It also could
affect fuel economy and driveability. If the
MIL is flashing, severe catalytic converter
damage and power loss will soon occur.
Immediate service is required.

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