2023 RAM CHASSIS CAB buttons

56GETTING TO KNOW YOUR VEHICLE

Front Courtesy/Reading Lights

NOTE:On vehicles equipped with an LED overhead
console, if both the Dome On and Dome Off
buttons are pushed, the Illuminated Entry with
door ajar feature will be disabled, but the Dome
Lights inside the vehicle will turn on.
Three types of Rear Courtesy/Reading Lights are
available for your vehicle:
Push button on/off
Push lens on/off
No on/off button, just Courtesy Light
NOTE:The Rear Courtesy/Reading Lights will remain on
until the switch is pushed a second time, so be
sure they have been turned off before exiting the
vehicle. If the interior lights are left on after the
ignition is turned off, they will automatically turn off
after 10 minutes.
Dimmer Controls
The dimmer controls are inboard and adjacent to
the headlight switch located on the left side of the
instrument panel.
Dimmer Controls Dimmer Controls (Vehicles Sold In Canada Only)

With the parking lights or headlights on, rotating
the instrument panel dimmer control upward will
increase the brightness of the instrument panel
lights. Rotating the ambient dimmer control will
adjust the interior and ambient light levels when
the headlights are on.
Dimming Of The Uconnect Touchscreen
The brightness of the Uconnect touchscreen can
be dimmed using the instrument panel dimmer
control when the parking lights or headlights are
on.
1 — Driver’s Reading Light On/Off Button
2 — Dome Off Button
3 — Passenger’s Reading Light On/Off Button
4 — Dome On Button
1 — Ambient Light Control (If Equipped)
2 — Instrument Panel Dimmer Control
1 — Ambient Light Control (If Equipped)
2 — Instrument Panel Dimmer Control

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60GETTING TO KNOW YOUR VEHICLE
Auto Button
Set your desired temperature and press
AUTO. AUTO will achieve and maintain
your desired temperature by
automatically adjusting the blower speed
and air distribution. A/C may be active during AUTO
operation to improve performance. AUTO mode is
highly recommended for efficiency.
You can turn AUTO on in one of two ways:

Press and release this button on the touchscreen.

Push the button on the faceplate.
Toggling this function will cause the system to
switch between manual mode and automatic
mode Ú page 64.
Front Defrost Button
Press and release the Front Defrost
button on the touchscreen, or push and
release the button on the faceplate, to
change the current airflow setting to
Defrost mode. The Front Defrost indicator
illuminates when Front Defrost is on. Air comes
from the windshield and side window demist
outlets. When the defrost button is selected, the
blower level may increase. Use Defrost mode with
maximum temperature settings for best
windshield and side window defrosting and
defogging. When toggling the front defrost mode
button, the climate system will return to the
previous setting.
Rear Defrost Button
Press and release the Rear Defrost
button on the touchscreen, or push and
release the button on the faceplate, to
turn on the rear window defroster and the
heated outside mirrors (if equipped). The Rear
Defrost indicator illuminates when the rear window
defroster is on. The rear window defroster
automatically turns off after 10 minutes.
Driver And Passenger Temperature Up And
Down Buttons
These buttons provide the driver and passenger
with independent temperature control.
Push the red button (or rotate knob if
equipped) on the faceplate or
touchscreen, or press and slide the
temperature bar towards the red arrow
button on the touchscreen for warmer
temperature settings.
Push the blue button (or rotate knob if
equipped) on the faceplate or
touchscreen, or press and slide the
temperature bar towards the blue arrow
button on the touchscreen for cooler temperature
settings.
NOTE:
The numbers within the temperature display will
only appear if the system is equipped with an
automatic climate control system.
Up and down buttons are only available on vehi -
cles equipped with a 12-inch display.
CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
Use care when washing the inside of the rear
window. Do not use abrasive window cleaners
on the interior surface of the window. Use a
soft cloth and a mild washing solution, wiping
parallel to the heating elements. Labels can
be peeled off after soaking with warm water.
Do not use scrapers, sharp instruments, or
abrasive window cleaners on the interior
surface of the window.
Keep all objects a safe distance from the
window.

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GETTING TO KNOW YOUR VEHICLE61
SYNC Button
Press the SYNC button on the
touchscreen to toggle the SYNC feature
on/off. The SYNC indicator illuminates
when SYNC is on. SYNC synchronizes the
passenger temperature setting with the driver
temperature setting. Changing the passenger’s
temperature setting while in SYNC will
automatically exit this feature.
NOTE:The SYNC button is only available on the touch-
screen.
Blower Control
Blower Control regulates the amount of
air forced through the climate control
system. There are seven blower speeds
available. Adjusting the blower will cause
automatic mode to switch to manual operation.
The speeds can be selected using either the
blower control knob on the faceplate or the
buttons on the touchscreen.
Faceplate
The blower speed increases as you turn the blower
control knob clockwise from the lowest blower
setting. The blower speed decreases as you turn
the blower control knob counterclockwise. Touchscreen
Use the small blower icon to reduce the blower
setting and the large blower icon to increase the
blower setting. Blower can also be selected by
pressing the blower bar area between the icons.
Mode Control
Select Mode by pressing one of the Mode
buttons on the touchscreen, or pushing
the Mode button on the faceplate, to
change the airflow distribution mode.
The airflow distribution mode can be adjusted so
air comes from the instrument panel outlets, floor
outlets, defrost outlets, and demist outlets.
Faceplate
Push the Mode Button to change the airflow
distribution mode. The airflow distribution mode
can be adjusted so air comes from the instrument
panel outlets, floor outlets, defrost outlets and
demist outlets.
Touchscreen
Press one of the “MODE” buttons to change the
airflow distribution mode. The airflow distribution
mode can be adjusted so air comes from the
instrument panel outlets, floor outlets, defrost
outlets and demist outlets.
Panel Mode
Air comes from the outlets in the
instrument panel. Each of these outlets
can be individually adjusted to direct the
flow of air. The air vanes of the center
outlets and outboard outlets can be moved up and
down or side to side to regulate airflow direction.
There is a shut-off wheel located below the air
vanes to shut off or adjust the amount of airflow
from these outlets.
Bi-Level Mode
Air comes from the instrument panel
outlets and floor outlets. A slight amount
of air is directed through the defrost and
side window demister outlets.
NOTE:Bi-Level mode is designed under comfort condi -
tions to provide cooler air out of the panel outlets
and warmer air from the floor outlets.
Floor Mode
Air comes from the floor outlets. A slight
amount of air is directed through the
defrost and side window demister
outlets.
2

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64GETTING TO KNOW YOUR VEHICLE
Mix Mode
Air is directed through the floor, defrost,
and side window demister outlets. This
setting works best in cold or snowy
conditions that require extra heat to the
windshield. This setting is good for maintaining
comfort while reducing moisture on the
windshield.
AUTOMATIC TEMPERATURE CONTROL
(ATC)
Automatic Operation

1. Push the AUTO button on the faceplate, or the
AUTO button on the touchscreen on the
Automatic Temperature Control (ATC) Panel.

2. Next, adjust the temperature you would like the system to maintain by adjusting the driver
and passenger temperature control buttons.
Once the desired temperature is displayed, the
system will achieve and automatically
maintain that comfort level.
3. When the system is set up for your comfort level, it is not necessary to change the
settings. You will experience the greatest
efficiency by simply allowing the system to
function automatically.
NOTE:
It is not necessary to move the temperature
settings for cold or hot vehicles. The system
automatically adjusts the temperature, mode,
and blower speed to provide comfort as quickly
as possible.
The temperature can be displayed in U.S. or
Metric units by selecting the U.S./Metric within
Uconnect Settings Ú page 199.
To provide you with maximum comfort in the
Automatic mode during cold start-ups, the blower
fan will remain on low until the engine warms up.
The blower will increase in speed and transition
into Auto mode.
Manual Operation Override
This system offers a full complement of manual
override features. The AUTO symbol in the front
ATC display will be turned off when the system is
being used in the manual mode.
CLIMATE VOICE RECOGNITION —
I
F EQUIPPED
Adjust vehicle temperatures hands-free and keep
everyone comfortable while you keep moving
ahead. Push the VR button on the steering wheel. After the
beep, say one of the following commands:
“
Set driver temperature to 70 degrees ”
“Set passenger temperature to 70 degrees ”
Did you know: Voice Command for Climate may
only be used to adjust the interior temperature of
your vehicle. Voice Command will not work to
adjust the heated seats or steering wheel if
equipped.
OPERATING TIPS
Refer to the chart at the end of this section for
suggested control settings for various weather
conditions.
Summer Operation
The engine cooling system must be protected with
a high-quality antifreeze coolant to provide proper
corrosion protection and to protect against engine
overheating. OAT coolant (conforming to
MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and defroster
performance, make sure the engine cooling
system is functioning properly and the proper
amount, type, and concentration of coolant is
used. Use of the Air Recirculation mode during
Winter months is not recommended, because it
may cause window fogging.

23_DPF_OM_EN_USC_t.book Page 64

90GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER DISPLAY
L
OCATION AND CONTROLS

Instrument Cluster Display/Controls Location

The system allows the driver to select information
by pushing the following instrument cluster display
control buttons located on the left side of the
steering wheel.
Base/Midline Instrument Cluster Display Control Buttons Premium Instrument Cluster Display Control Buttons

Up And Down Arrow Buttons:
Using the up or down arrow button allows
you to cycle through the Main Menu Items.
Left And Right Arrow Buttons:
Using the left or right arrow button allows
you to cycle through the submenu items of the
Main menu item.
1 – Instrument Cluster Display Screen
2 – Instrument Cluster Display Controls
1 — Left Arrow Button
2 — Up Arrow Button
3 — Right Arrow Button
4 — Down Arrow Button
5 — OK Button1 — Left Arrow Button
2 — Up Arrow Button
3 — Right Arrow Button
4 — Down Arrow Button
5 — OK Button
6 — Menu Button

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GETTING TO KNOW YOUR INSTRUMENT PANEL91
NOTE:
Holding the up / down or left / right
arrow button will loop the user through the
currently selected menu or options presented
on the screen.
Main menu and submenus wrap for continuous
scrolling.
Upon returning to a main menu, the last
submenu screen viewed within that main menu
will be displayed.
OK Button:
For Digital Speedometer:
Pushing the OK button changes units (mph or
km/h).
Menu Button
Press Menu button for Home Screen display.
Navigate left or right to highlight desired
tile. Press OK to select desired. Once OK is
pressed, cluster will navigate to selected
submenu (e.g. “Audio”).
NOTE:Exiting Home Screen Speed Limit tile and Navi -
gation tile with no Ethernet navigates to Speed -
ometer submenu.
Press up or down to select different
screen within selected category.
If Menu button is pressed while in this view,
cluster will return to previously displayed
screen.
Press and hold OK button to enter edit mode.
Instruction text may overlay lower tachom -
eter
For Screen Setup:
OK button allows user to enter menu and
submenus.
Within each submenu layer, the up and
down arrow buttons will allow the user to
select the item of interest.
Pushing the OK button makes the selection and
a confirmation screen will appear (returning the
user to the first page of the submenu).
Pushing the left arrow button will exit each
submenu layer and return to the main menu.
Custom Tile Configuration — If Equipped
To customize the instrument cluster further, you
are able to select up to five tiles to display
information based on your needs.
Press the MENU button for the Home Screen
display
Navigate Left or Right to highlight desired
tile
Press OK to select the tile and navigate to the
selected submenu and press OK again to add
your selection to your tile view
The main menu options of the home screen are
Driver Info, Vehicle Info, Navigation —
If Equipped, Audio, and Off Road

Custom Tile Screen Example

3

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124STARTING AND OPERATING
ENGINE IDLING

Avoid prolonged idling. Long periods of idling may be
harmful to your engine because combustion
chamber temperatures can drop so low that the fuel
may not burn completely. Incomplete combustion
allows carbon and varnish to form on piston rings,
engine valves, and injector nozzles. Also, the
unburned fuel can enter the crankcase, diluting the
oil and causing rapid wear to the engine.

If the engine is allowed to idle or the truck is driven
on low engine speed drive cycles for more than two
hours, the system will automatically enter an
emissions operating mode that will increase the
engine idle speed to 900 RPM (1,050 RPM for
Chassis Cab). While in this mode, which is
designed to help maintain the Diesel Particulate
Filter, the engine idle speed will return to normal
when the brake pedal is applied. A small change in
engine tone or a slight change in engine
performance while accelerating may also be
noticeable at speeds below 20 mph (32 km/h).
This operating mode may last for up to an hour of
idle time, or around 20 minutes of driving time.

Your truck may have been ordered with an optional
voltage monitoring idle up feature. If a load is placed
on the electrical system while the truck is in PARK,
this feature will attempt to maintain normal system
voltage by automatically increasing engine idle
speed. You may notice several consecutive increases
in idle speed, up to a maximum of 1,450 RPM, as the system will attempt to utilize the smallest increase in
idle speed necessary to maintain normal system
voltage. The idle speed will return to normal when
either the electrical load is removed, or when the
brake pedal is applied.

NOTE:For instrument cluster display messages related to
the vehicle's exhaust system Ú
page 89.
Idle-Up Feature
The driver-controlled high idle speed feature will
help increase cylinder temperatures and provide
additional cab heat, however, excessive idling may
still cause the exhaust after-treatment system to
not properly regenerate. Extended periods of idle
time should be avoided.
The Idle-Up feature uses the Cruise Control buttons
to increase engine idle speed and quickly warm the
vehicle's interior.

1. With the transmission in PARK, the parking
brake applied, and the engine running, turn
on the Cruise Control, then push the SET (-)
button.

2. The engine RPM will go up to 1,100 RPM. To increase the RPM, push and hold the RES (+)
button and the idle speed will increase to
approximately 1,500 RPM. To decrease the
RPM, push and hold the SET (-) button and the
idle speed will decrease to approximately
1,100 RPM. 3. To cancel the Idle–Up feature, either push the
CANCEL button, push the ON/OFF button, or
press the brake pedal.
NOISE
Diesel engines can create noises that may seem
as a concern. The nature of a diesel engine is
compression ignition where compressed air and
fuel are mixed and ignited. Weather, barometric
pressure, altitude and temperature will affect how
fuel is ignited in the engine. Engines will sound
different from day to day or previous model years.
Clicking, ticking, or light knocking is normal and will
change from day to day, as the engine breaks in,
and can vary with changes in ambient
temperature; this is normal. Diesel equipped
vehicles also have an exhaust after treatment
system to reduce emissions utilizing a Diesel
Particulate Filter (DPF) and a Selective Reduction
Catalyst (SCR). The SCR reduces Nox using the
Diesel Exhaust Fluid (DEF) system. DEF is injected
directly into the SCR through an dosing module.
This process will create a clicking sound and at
times, will make noise even with the vehicle shut
off. This is normal as the DEF dosing module is
purging DEF. If at any time the check engine light is
on, please visit an authorized dealer.

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STARTING AND OPERATING149
Only one Cruise Control feature can operate at a
time. For example, if Fixed Speed Cruise Control
is enabled, Adaptive Cruise Control will be
unavailable, and vice versa.
CRUISE CONTROL
When engaged, the Cruise Control takes over
accelerator operations at speeds greater than
20 mph (32 km/h).
The Cruise Control buttons are located on the right
side of the steering wheel.

Cruise Control Buttons

To Activate
Push the on/off button to activate the Cruise
Control. The cruise indicator light in the instrument
cluster display will illuminate. To turn the system
off, push the on/off button a second time. The
cruise indicator light will turn off. The system
should be turned off when not in use.
To Set A Desired Speed
Turn the Cruise Control on.
When the vehicle has reached the desired speed,
push the SET (+) or SET (-) button and release.
Release the accelerator and the vehicle will
operate at the selected speed.
NOTE:The vehicle should be traveling at a steady speed
and on level ground before pushing the SET (+) or
SET (-) button.
To Vary The Speed Setting
To Increase Or Decrease The Set Speed
After setting a speed, you can increase the set
speed by pushing the SET (+) button, or decrease
speed by pushing the SET (-) button.
U.S. Speed (mph)
Pushing the SET (+) , or SET (-) button once will
result in a 1 mph speed adjustment. Each
subsequent tap of the button results in an
adjustment of 1 mph.
If the button is continually pushed, the set
speed will continue to adjust in 5 mph incre -
ments until the button is released. The new set
speed is reflected in the instrument cluster
display.
Metric Speed (km/h)
Pushing the SET (+) , or SET (-) button once will
result in a 1 km/h speed adjustment. Each
subsequent tap of the button results in an
adjustment of 1 km/h.

If the button is continually pushed, the set speed
will continue to adjust in 10 km/h increments
until the button is released. The new set speed is
reflected in the instrument cluster display.

NOTE:When you override and push the SET (+) or SET (-)
button, the new set speed will be the current speed
of the vehicle.
1 — SET (+)/Accel
2 — CANC/Cancel
3 — SET (-)/Decel
4 — On/Off
5 — RES/Resume
WARNING!
Leaving the Cruise 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 ensure the system is off when
you are not using it.4

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