2020 Ram 3500 Chassis Cab ignition

86GETTING TO KNOW YOUR INSTRUMENT PANEL
Premium Instrument Cluster Descriptions

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 “Getting To Know Your
Instrument Panel” for further informa -
tion.
3. Speedometer
Indicates vehicle speed. 4. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the ignition is in the ON/
RUN position.
 The fuel pump symbol points
to the side of the vehicle where
the fuel door is located.
Refer to “Refueling The Vehicle — Gas
Engine” in “Starting And Operating” for
further information.
5. Temperature Gauge
The gauge pointer shows engine coolant temperature. The pointer positioned
within the normal range indicates that
the engine cooling system is operating
satisfactorily.
The gauge pointer will likely indicate a higher temperature when driving in hot
weather, up mountain grades, or when
towing a trailer. It should not be allowed
to exceed the upper limits of the normal
operating range.
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 “Servicing And
Maintenance.” Follow the warnings under the
Cooling System Pressure Cap paragraph.
CAUTION!
Driving with a hot engine cooling system
could damage 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.

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GETTING TO KNOW YOUR INSTRUMENT PANEL89
5. Speedometer
Indicates vehicle speed.
6. 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.
Refer to “Refueling The Vehicle — Diesel
Engine” in “Starting And Operating” for
further information. 7. Diesel Exhaust Fluid (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 information
is available in the instrument cluster
display section under the heading of
Diesel Exhaust Fluid (DEF) Warning
Messages. 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 an authorized dealer for service.
The DEF gauge may also not immediately
update after a refill if the temperature of the
DEF fluid is below 39°F (4°C). The DEF tank
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.
3

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GETTING TO KNOW YOUR INSTRUMENT PANEL91
Diesel 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 “Getting To Know Your
Instrument Panel” for further informa -
tion.
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. Refer to “Refueling The Vehicle — Diesel
Engine” in “Starting And Operating” for
further information.
5. Diesel Exhaust Fluid (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 information
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 200 miles
(321 kilometers) 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 an authorized dealer for service.
The DEF gauge may also not immediately
update after a refill if the temperature of the
DEF fluid is below 39°F (4°C). The DEF tank
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.
3

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92GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER DISPLAY
Your vehicle will be equipped with an instru-
ment cluster display, which offers useful infor -
mation to the driver. With the ignition in the OFF
mode, opening/closing of a door will activate
the display for viewing, and display the total
miles, or kilometers, in the odometer. Your
instrument cluster display is designed to display
important information about your vehicle’s
systems and features. Using a driver-interactive
display located on the instrument panel, your
instrument cluster display can show you how
systems are working and give you warnings
when they are not. The steering wheel mounted
controls allow you to scroll through the main
menus and submenus. You can access the
specific information you want and make selec -
tions and adjustments.
Instrument Cluster Display Controls
The instrument cluster display features a
driver-interactive display that is located in the
instrument cluster.

Base Instrument Cluster Display
Premium Instrument Cluster Display
The instrument cluster display menu items may
consist of the following:Speedometer
Vehicle Info
Driver Assist — If Equipped
Fuel Economy
Trip
Trailer Tow
Audio
Stored Messages
Screen Set Up
Vehicle Settings — If Equipped
Commercial Settings — If Equipped

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GETTING TO KNOW YOUR INSTRUMENT PANEL93
The system allows the driver to select informa-
tion by pushing the following instrument cluster
display control buttons located on the left side
of the steering wheel:

Instrument Cluster Display Control Buttons

Up Arrow Button
Push and release the up arrow
button to scroll upward through the
main menu items, submenu
screen, and vehicle settings.
Down Arrow Button
Push and release the down arrow
button to scroll downward through
the main menu items, submenu
screen, and vehicle settings.
Right Arrow Button
Push and release the right arrow
button to access/select the infor -
mation screens or submenu
screens of a main menu item. Push
and hold the RIGHT arrow button for two
seconds to reset displayed/selected features
that can be reset.
Left Arrow Button
Push and release the left arrow
button to access/select the infor -
mation screens, submenu screens
of a main menu item, or to return to
the main menu.
Oil Life Reset
Your vehicle is equipped with an engine oil
change indicator system. The “Oil Change
Required” message will display in the instru -
ment cluster display after a single chime has
sounded, to indicate the next scheduled oil
change interval. The engine oil change indicator
system is duty cycle based, which means the
engine oil change interval may fluctuate, depen -
dent upon your personal driving style. NOTE:
Use the steering wheel instrument cluster
display controls for the following procedure.
Oil Life Reset Procedure

1. Without pushing the brake pedal, push the
ENGINE START/STOP button and place the
ignition to the ON/RUN position (do not
start the engine).

2. Push and release the down arrow button to
scroll downward through the main menu to
“Vehicle Info.”
3. Push and release the right arrow button to
access the ”Vehicle Info” screen, then scroll
up or down to select “Oil Life.”
4. Push and hold the right arrow button to
select “Reset”.
5. Push and release the down arrow button to
select “Yes,” then push and release the
right arrow button to reset the Oil Life to
100%.
6. Push and release the up arrow button to exit
the instrument cluster display screen.
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94GETTING TO KNOW YOUR INSTRUMENT PANEL
Secondary Method Of Resetting Engine Oil Life

1. Without pressing the brake pedal, push the
ENGINE START/STOP button and place the
ignition to the ON/RUN position (do not
start the engine).

2. Fully press the accelerator pedal, slowly, three times within ten seconds.
3. Without pushing the brake pedal, push the ENGINE START/STOP button once to return
the ignition to the OFF/LOCK position.
NOTE:
If the indicator message illuminates when you
start the vehicle, the oil change indicator
system did not reset. If necessary, repeat this
procedure.
Display Menu Items
Push and release the up or down arrow button
until the desired selectable menu icon is high -
lighted in the instrument cluster display.
Speedometer
Push and release the up or down arrow button
until the speedometer menu item is highlighted
in the instrument cluster display. Push and
release the right arrow button to cycle the
display between mph and km/h.
Vehicle Info
Push and release the up or down arrow button
until the Vehicle Info menu item is highlighted in
the instrument cluster display. Push and
release the right arrow button to enter the
submenus items of Vehicle Info. Follow the
directional prompts to access or reset any of the
following Vehicle Info submenu items:
Tire Pressure
Coolant Temperature
Transmission Temperature — If Equipped
Oil Temperature
Oil Pressure
Exhaust Brake — If Equipped
Turbo Boost — If Equipped
Diesel Particulate Filter — If Equipped
Oil Life
Fuel Filter Life — If Equipped
Battery Voltage
Gauge Summary
Engine Hours
Driver Assist — If Equipped
The Driver Assist menu displays the status of
the ACC system.
Push and release the up or down arrow button
until the Driver Assist menu is displayed in the
instrument cluster display.
Adaptive Cruise Control (ACC) Feature
The instrument cluster display displays the
current ACC system settings. The information
displayed depends on ACC system status.
Push the Adaptive Cruise Control (ACC) on/off
button (located on the steering wheel) until one
of the following displays in the instrument
cluster display:
Adaptive Cruise Control Off
When ACC is deactivated, the display will read
“Adaptive Cruise Control Off.”

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102GETTING TO KNOW YOUR INSTRUMENT PANEL
Commercial Settings — If Equipped
Commercial Settings allows the driver to set
and recall additional features when the trans-
mission is in PARK.
Push and release the up and down 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. For information on
vehicle settings in vehicles equipped with
touchscreen radios, refer to “Uconnect
Settings” in “Multimedia”.
Commercial Settings allows you to access the
following features (if equipped):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.
Compass Variance
Compass Var 1-15 increments of 1
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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108GETTING TO KNOW YOUR INSTRUMENT PANEL
The battery was discharged by an electrical
load left on when the vehicle was parked.
The battery was used for an extended period
with the engine not running to supply radio,
lights, chargers, +12 Volt portable appli-
ances like vacuum cleaners, game consoles
and similar devices.
What to do when an electrical load reduction
action message is present (“Battery Saver On”
or “Battery Saver Mode”)
During a trip:
Reduce power to unnecessary loads if
possible:
Turn off redundant lights (interior or exte -
rior).
Check what may be plugged in to power outlets +12 Volts, 115 Volt AC, USB ports.
Check HVAC settings (blower, tempera -
ture).
Check the audio settings (volume). After a trip:
Check if any aftermarket equipment was
installed (additional lights, upfitter electrical
accessories, audio systems, alarms) and
review specifications if any (load and Ignition
Off Draw currents).
Evaluate the latest driving cycles (distance,
driving time and parking time).
The vehicle should have service performed if
the message is still present during consecu
-
tive trips and the evaluation of the vehicle
and driving pattern did not help to identify the
cause.
WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in
the instrument panel together with a dedicated
message and/or acoustic signal when appli -
cable. These indications are indicative and
precautionary and as such must not be consid -
ered as exhaustive. Always refer to the informa-
tion in this chapter in the event of a failure
indication. 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.
Red Warning Lights
Seat Belt Reminder Warning Light
This warning light indicates when the
driver or passenger seat belt is
unbuckled. When the ignition is first
placed in the ON/RUN or ACC/ON/
RUN position and if the driver’s seat belt is
unbuckled, a chime will sound and the light will
turn on. When driving, if the driver or front
passenger seat belt remains unbuckled, the
Seat Belt Reminder Light will flash or remain on
continuously and a chime will sound.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
Air Bag Warning Light
This warning light will illuminate to
indicate a fault with the air bag, and
will turn on for four to eight seconds
as a bulb check when the ignition is
placed in the ON/RUN or ACC/ON/RUN posi -
tion. This light will illuminate with a single chime
when a fault with the air bag has been detected,
it will stay on until the fault is cleared. If the light
is either not on during startup, stays on, or turns
on while driving, have the system inspected at
an authorized dealer as soon as possible.

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