2022 RAM CHASSIS CAB ECO mode

60GETTING TO KNOW YOUR VEHICLE
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 191. 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
NOTE: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.
Vacation/Storage
For information on maintaining the Climate Control
system when the vehicle is being stored for an
extended period of time, see Ú page 393.

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GETTING TO KNOW YOUR INSTRUMENT PANEL81
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 Ú page 81.
The display always shows one of the main
menu item after the ignition is placed on.
3. Speedometer
Indicates vehicle speed.
4. Diesel Exhaust Fluid (DEF) Gauge
The DEF Gauge displays the actual level of
Diesel Exhaust Fluid in the DEF tank. DEF is
required to maintain normal vehicle opera -
tion and emissions compliance. If some -
thing is wrong with the gauge, a DEF
Warning Message or Malfunction Indicator
Light (MIL) will be displayed. More informa -
tion is available in the instrument cluster
display section under the heading of Diesel
Exhaust Fluid (DEF) Warning Messages. 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.
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 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.
INSTRUMENT CLUSTER DISPLAY
Your vehicle is equipped with an instrument cluster
display, which offers useful information 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 selections
and adjustments.
3

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GETTING TO KNOW YOUR INSTRUMENT PANEL91
By simply driving your vehicle at highway speeds
for as little as 45 minutes, you can remedy the
condition in the particulate filter system and
allow your Cummins® diesel engine and
exhaust after-treatment system to remove the
trapped PM and restore the system to normal
operating condition.
Exhaust System — Regeneration In Process
Exhaust Filter XX% Full — Indicates that the DPF
is self-cleaning. Maintain your current driving
condition until regeneration is completed.
Exhaust System — Regeneration Completed —
This message indicates that the DPF
self-cleaning is completed. If this message is
displayed, you will hear one chime to assist in
alerting you of this condition.
Exhaust Service Required — See Dealer Now —
This message indicates regeneration has been
disabled due to a system malfunction. At this
point the engine Powertrain Control Module
(PCM) will register a fault code, the instrument
panel will display a MIL light.
Exhaust Filter Full — Power Reduced See
Dealer — This message indicates the PCM has
derated the engine to limit the likelihood of
permanent damage to the after-treatment
system. If this condition is not corrected and a
dealer service is not performed, extensive
exhaust after-treatment damage can occur. To
correct this condition it will be necessary to have
your vehicle serviced by an authorized dealer.
NOTE:Failing to follow the oil change indicator, changing
your oil and resetting the oil change indicator by
0 miles remaining will prevent the diesel exhaust
filter from performing it's cleaning routine. This will
shortly result in a Malfunction Indicator Light (MIL)
and reduced engine power. Only an authorized
dealer will be able to correct this condition.
Cold Ambient Derate Mode Messages
The vehicle will display messages when a derate
(engine power reduction) is activated to protect the
engine during start-up in cold ambient
temperatures.
Engine Power Reduced During Warm-up — This
message 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 Warm-up — 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 Warm-up — This message will display
during start-up when the ambient temperature
is -25°F (-32°C) and below.
Your vehicle is equipped with an engine warm
up protection feature that may limit engine
performance after cold starting at low ambient
temperatures. The length of time engine speed
is limited is dependent upon engine coolant
temperature. Engine speed may be briefly
limited to 1,000 RPM after starting with coolant
temperature below freezing conditions, and
may be limited to 1,000 RPM for up to approxi -
mately two minutes under more severe cold
conditions.
Coolant Low — This telltale will turn on to indi -
cate the vehicle coolant level is low
Ú page 341.CAUTION!
See an authorized dealer, as damage to the
exhaust system could occur soon with continued
operation.
CAUTION!
See an authorized dealer, as damage to the
exhaust system could occur soon with continued
operation.
3

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100GETTING TO KNOW YOUR INSTRUMENT PANEL
Anti-Lock Brake System (ABS) Warning
Light
This warning light monitors the ABS. The
light will turn on when the ignition is
placed in the ON/RUN or ACC/ON/RUN
position and may stay on for as long as
four seconds.
If the ABS light remains on or turns on while
driving, then the Anti-Lock portion of the brake
system is not functioning and service is required as
soon as possible. However, the conventional brake
system will continue to operate normally,
assuming the Brake Warning Light is not also on. If the ABS light does not turn on when the ignition
is placed in the ON/RUN or ACC/ON/RUN position,
have the brake system inspected by an authorized
dealer.
Service Forward Collision Warning (FCW)
Light — If Equipped
This warning light will illuminate to
indicate a fault in the Forward Collision
Warning System. Contact an authorized
dealer for service Ú
page 266.
Service LaneSense Warning Light —
If Equipped
This warning light will illuminate when the
LaneSense system is not operating and
requires service. Please see an
authorized dealer.
Service 4WD Warning Light — If Equipped
This warning light will illuminate to signal
a fault with the 4WD system. If the light
stays on or comes on during driving, it
means that the 4WD system is not
functioning properly and that service is required.
We recommend you drive to the nearest service
center and have the vehicle serviced immediately.
Cruise Control Fault Warning Light
This warning light will illuminate to
indicate the Cruise Control System is not
functioning properly and service is
required. Contact an authorized dealer.
YELLOW INDICATOR LIGHTS
Forward Collision Warning (FCW) Off
Indicator Light — If Equipped
This indicator light illuminates to indicate
that Forward Collision Warning is off
Ú page 266.
TOW/HAUL Indicator Light
This indicator light will illuminate when
TOW/HAUL mode is selected.
Trailer Merge Assist Indicator Light —
If Equipped
This indicator light will illuminate to
indicate when Trailer Merge Assist has
been activated.
Cargo Light — If Equipped
This indicator light will illuminate when
the cargo light is activated by pushing the
cargo light button on the headlight
switch.
CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures
and warning have been established for the tire
size equipped on your vehicle. Undesirable
system operation or sensor damage may result
when using replacement equipment that is not
of the same size, type, and/or style. Aftermarket
wheels can cause sensor damage. Using
aftermarket tire sealants may cause the Tire
Pressure Monitoring System (TPMS) sensor to
become inoperable. After using an aftermarket
tire sealant it is recommended that you take
your vehicle to an authorized dealer to have your
sensor function checked.

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GETTING TO KNOW YOUR INSTRUMENT PANEL101
Snowplow Mode Indicator Light —
If Equipped
This indicator light will illuminate when
Snowplow Mode has been activated
Úpage 183.
Cold Ambient Derate Mode Indicator
Light — If Equipped

This indicator light will illuminate when a
derate (engine power reduction) is
activated for protection of the turbo-
charger in cold ambient temperatures.

Diesel Exhaust Brake Indicator Light —
If Equipped
This indicator light will illuminate when
the Diesel Exhaust Brake has been
activated, and is in full strength mode
Úpage 120.
4WD Lock Indicator Light
This light alerts the driver that the vehicle
is in the 4WD LOCK mode. The front and
rear driveshafts are mechanically locked
together, forcing the front and rear
wheels to rotate at the same speed Ú page 132.
4WD Low Indicator Light — If Equipped
This light alerts the driver that the vehicle
is in the 4WD Low mode. The front and
rear driveshafts are mechanically locked together forcing the front and rear wheels to rotate
at the same speed. Low range provides a greater
gear reduction ratio to provide increased torque at
the wheels Ú
page 132.
4WD High Indicator Light — If Equipped
This light alerts the driver that the vehicle
is in the 4WD High mode. The front and
rear driveshafts are mechanically locked
together forcing the front and rear
wheels to rotate at the same speed.
NEUTRAL Indicator Light — If Equipped
This light alerts the driver that the 4WD
power transfer case is in the NEUTRAL
mode and the front and rear driveshafts
are disengaged from the powertrain.
Low Diesel Exhaust Fluid (DEF) Indicator
Light — If Equipped
The Low DEF Indicator will illuminate if
the vehicle is low on DEF Ú page 351.
Wait To Start Light — If Equipped
This indicator light will illuminate for
approximately two seconds when the
ignition is turned to the RUN position. Its
duration may be longer based on colder
operating conditions. Vehicle will not initiate start
until telltale is no longer displayed Ú page 108.
NOTE:The Wait To Start Light may not illuminate if the
intake manifold temperature is warm enough.
Water In Fuel Indicator Light — If Equipped
The Water In Fuel Indicator Light will
illuminate when there is water detected
in the fuel filter. If this light remains on,
DO NOT start the vehicle before you drain
the water from the fuel filter to prevent engine
damage Ú page 347.
GREEN INDICATOR LIGHTS
Adaptive Cruise Control (ACC) Set With
Target Light — If Equipped
This will display when the ACC is set and
a the vehicle in front is detected
Úpage 143.
Adaptive Cruise Control (ACC) Set With No
Target Detected Indicator Light —
If Equipped
This light will turn on when the Adaptive
Cruise Control is SET and there is no
vehicle in front detected Ú page 143.
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102GETTING TO KNOW YOUR INSTRUMENT PANEL
Automatic Diesel Exhaust Brake Indicator
Light — If Equipped
This indicator light will illuminate when
the Diesel Exhaust Brake has been
activated, and has switched to Automatic
mode Úpage 141.
ECO Mode Indicator Light — If Equipped
This light will turn on when ECO mode is
active.
Parking/Headlights On Indicator Light
This indicator light will illuminate when
the parking lights or headlights are
turned on.
LaneSense Indicator Light — If Equipped
The LaneSense indicator light illuminates
solid green when both lane markings
have been detected and the system is
“armed” and ready to provide visual and
torque warnings if an unintentional lane departure
occurs Ú page 156.
Front Fog Indicator Light — If Equipped
This indicator light will illuminate when
the front fog lights are on.
Turn Signal Indicator Lights
When the left or right turn signal is
activated, the turn signal indicator will
flash independently and the
corresponding exterior turn signal lamps
will flash. Turn signals can be activated when the
multifunction lever is moved down (left) or up
(right).
NOTE:
A continuous chime will sound if the vehicle is
driven more than 1 mile (1.6 km) with either
turn signal on.
Check for an inoperative outside light bulb if
either indicator flashes at a rapid rate.
If equipped with fog lamps, the fog lamp on
the side of the activated turn signal will also
illuminate to provide additional light when
turning.
Cruise Control Set Indicator Light —
If Equipped
This indicator light will illuminate when
the cruise control is set to the desired
speed Ú page 141.
WHITE INDICATOR LIGHTS
Adaptive Cruise Control (ACC) Ready
Light — If Equipped
This light will illuminate when the vehicle
equipped with ACC has been turned on
but not set Ú page 143.
Cruise Control Ready Indicator
This indicator light will illuminate when
the cruise control is ready, but not set
Úpage 141.
Set Speed Display
The Set Speed Display indicator light
indicates the set speed for the Speed
Control and ACC settings.
LaneSense Indicator Light — If Equipped
When the LaneSense system is ON, but
not armed, the LaneSense indicator light
illuminates solid white. This occurs when
only left, right, or neither lane line has
been detected. If a single lane line is detected, the
system is ready to provide only visual warnings if
an unintentional lane departure occurs on the
detected lane line Ú page 156.

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118STARTING AND OPERATING
Do Not Operate The Engine With Failed
Parts
All engine failures give some warning before the
parts fail. Be on the alert for changes in
performance, sounds, and visual evidence that the
engine requires service. Some important clues are:
Engine misfiring or vibrating severely.
Sudden loss of power.
Unusual engine noises.
Fuel, oil or coolant leaks.
Sudden change, outside the normal operating
range, in the engine operating temperature.
Excessive smoke.
Oil pressure drop.
DIESEL PARTICULATE FILTER (DPF)
M
ANUAL REGENERATION — IF EQUIPPED
On equipped Chassis Cabs, a manual regeneration
can be enable through the instrument cluster. The
manual regeneration will allow the DPF to
complete a regeneration, lowering the soot level
without having to drive the vehicle. The vehicle
must be in PARK to access this feature, and the
fuel level must be over 12.5% full. A message
displaying the time left on the regeneration will
appear on the instrument cluster, and the
instrument cluster will display the soot level
Ú page 81.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and
permits quicker starts in cold weather. Connect the
cord to a standard 110-115 Volt AC electrical
outlet with a grounded, three-wire extension cord.
The engine block heater cord is routed behind the
front bumper and accessible through the right hole
of the air dam.
The engine block heater must be plugged in at
least one hour to have an adequate warming effect
on the engine.
It includes a removable cap that is secured by a
tethered strap. It also has a c-clip that is used for
storage when not in use for the Winter months.
During Winter months, remove the heater cord
wiring assembly from itself on the c-clip.
NOTE:The block heater will require 110 Volt AC and
6.5 Amps to activate the heater element.
Block Heater Usage
For ambient temperatures below 0°F (-18°C),
engine block heater usage is recommended.
For ambient temperatures below –20°F (-29°C),
engine block heater usage is required.
ENGINE BREAK-IN RECOMMENDATIONS —
GASOLINE ENGINE
A long break-in period is not required for the engine
and drivetrain (transmission and axle) in your
vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles (100 km),
speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
While cruising, brief full-throttle acceleration within
the limits of local traffic laws contributes to a good
break-in. Wide-open throttle acceleration in low
gear can be detrimental and should be avoided.
The engine oil installed in the engine at the factory
is a high-quality energy conserving type lubricant.
Oil changes should be consistent with anticipated
climate conditions under which vehicle operations
will occur. For the recommended viscosity and
quality grades Ú page 404.
NOTE:A new engine may consume some oil during its first
few thousand miles (kilometers) of operation. This
should be considered a normal part of the break-in
CAUTION!
Never use Non-Detergent Oil or Straight Mineral
Oil in the engine or damage may result.

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STARTING AND OPERATING121
(Continued)
(Continued)
NOTE:For optimum braking power it is recommended to
use the exhaust brake while in TOW/HAUL mode.

The exhaust brake feature can also be used to
reduce the engine warm-up time. To use the exhaust
brake as a warm-up device, the vehicle must be
stopped or moving less than 5 mph (8 km/h), the
Exhaust Brake Indicator must be on, and the coolant
temperature must be below 180°F (82°C) and
ambient temperature below 60°F (16°C).

Automatic “Smart” Exhaust Brake
Automatic “Smart” Exhaust Brake technology
delivers smoother, less aggressive exhaust
braking characteristics during downhill descents.
Although it can apply full exhaust braking force if
needed, Automatic “Smart” Exhaust Brake may
not apply obvious braking if the vehicle speed is
not increasing. Automatic “Smart” Exhaust Brake
is intended to maintain vehicle speed, while Full
Exhaust Brake is intended to reduce vehicle speed.
Automatic “Smart” Exhaust Brake can be enabled
by pushing the exhaust brake button (on the center
stack) again anytime after the normal Full Exhaust
Brake has been turned on. The “Exhaust Brake Indicator” in the instrument cluster display will
change from Yellow to Green when Automatic
“Smart” Exhaust Brake is enabled. Pushing the
exhaust brake button again will toggle the exhaust
brake mode to off.AUTOMATIC TRANSMISSION
You must press and hold the brake pedal while
shifting out of PARK.
CAUTION!
Use of aftermarket exhaust brakes is not recom
-
mended and could lead to engine damage.
WARNING!
It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher than
idle speed. If your foot is not firmly pressing
the brake pedal, the vehicle could accelerate
quickly forward or in reverse. You could lose
control of the vehicle and hit someone or
something. Only shift into gear when the
engine is idling normally and your foot is firmly
pressing the brake pedal.
The transmission may not engage PARK if the
vehicle is moving. Always bring the vehicle to a
complete stop before shifting to PARK, and
verify that the transmission gear position indi -
cator solidly indicates PARK (P) without
blinking. Ensure that the vehicle is completely
stopped, and the PARK position is properly
indicated, before exiting the vehicle.
Unintended movement of a vehicle could
injure those in or near the vehicle. As with all
vehicles, you should never exit a vehicle while
the engine is running. Before exiting a vehicle,
always come to a complete stop, then apply
the parking brake, shift the transmission into
PARK, turn the engine OFF, and remove the
key fob. When the ignition is in the LOCK/OFF
(key removal) position, (or, with Keyless Enter
‘n Go™, when the ignition is in the OFF posi -
tion) the transmission is locked in PARK,
securing the vehicle against unwanted move -
ment.
When leaving the vehicle, always make sure
the ignition is in the OFF position, remove the
key fob from the vehicle, and lock the vehicle.
Never use the PARK position as a substitute
for the parking brake. Always apply the
parking brake fully when exiting the vehicle to
guard against vehicle movement and possible
injury or damage.
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the gear selector out of PARK with the
brake pedal released. Make sure the trans -
mission is in PARK before exiting the vehicle.
WARNING!
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