2022 RAM CHASSIS CAB fuel pressure

116STARTING AND OPERATING

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.
STOPPING THE ENGINE
Idle the engine a few minutes before routine
shutdown. After full load operation, idle the engine
three to five minutes before shutting it down. This
idle period will allow the lubricating oil and coolant
to carry excess heat away from the combustion
chamber, bearings, internal components, and
turbocharger. This is especially important for
turbocharged, charge air-cooled engines. Refer to
the following chart for proper engine shutdown:
Driving Condition
Load Turbocharger Temperature Idle Time (min.) Before Engine
Shutdown
Stop and Go EmptyCoolLess than One
Stop and Go Medium -One
Highway Speeds MediumWarmTwo
City Traffic Maximum GCWR -Three
Highway Speeds Maximum GCWR -Four
Uphill Grade Maximum GCWR HotFive

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STARTING AND OPERATING117
IDLE SHUTDOWN
This feature can be enabled so that the truck will
automatically shutdown when the truck has been
idling for a set period of time when the engine is at
operating temperature. Idle time can be set in
5 minute increments between 5 and 60 minutes.
See an authorized dealer to enable this feature.
NOTE:The idle shut down timer is disabled while the PTO
(Power Take-off) is active.
PROGRAMMABLE MAXIMUM VEHICLE
S
PEED
This feature allows the owner to set a maximum
vehicle speed for the vehicle. The 2500 and
3500 Series maximum vehicle speed can be set
between 40 mph to 87 mph (64 km/h to
140 km/h). The 4500/5500 Series maximum
vehicle speed can be set between 40 mph to
85 mph (64 km/h to 136 km/h). See an
authorized dealer to enable this feature.
NOTE:DO NOT set the maximum vehicle speed to a value
greater than what the vehicle tires are rated for.
OPERATING PRECAUTIONS
Avoid Overheating The Engine
The temperature of the engine coolant (antifreeze:
a mixture of 50% ethylene-glycol and 50% water)
must not exceed the normal range of the
temperature gauge 240°F (116°C) with a 21 psi
(145 kPa) coolant pressure cap.
Usually the engine coolant (antifreeze)
temperature indicated during operation will be to
the left of center in the normal range of the gauge.
Avoid Low Coolant Temperature Operation
Continual operation at low engine coolant
(antifreeze) temperature below the normal range
on the gauge 140°F (60°C) can be harmful to the
engine. Low engine coolant (antifreeze)
temperature can cause incomplete combustion
which allows carbon and varnish to form on piston
rings and injector nozzles. Also, the unburned fuel
can enter the crankcase, diluting the lubricating oil
and causing rapid wear to the engine.
COOLING SYSTEM TIPS
To reduce potential for engine and transmission
overheating in high ambient temperature
conditions, take the following actions:
City Driving — When stopped, shift the transmis -
sion into NEUTRAL and increase engine idle
speed.
Highway Driving — Reduce your speed.
Up Steep Hills — Select a lower transmission
gear.
Air Conditioning — Turn it off temporarily.
Do Not Operate The Engine With Low Oil
Pressure
When the engine is at normal operating
temperature, the minimum oil pressures required
are:
Idle 700 to 800 RPM 10 psi (69 kPa)Full speed and load 30 psi (207 kPa)
CAUTION!
If oil pressure falls to less than normal readings,
shut the engine off immediately. Failure to do so
could result in immediate and severe engine
damage.
4

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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 OPERATING119
(Continued)
and not interpreted as a problem. Please check
your oil level with the engine oil indicator often
during the break in period. Add oil as required.
ENGINE BREAK-IN RECOMMENDATIONS —
DIESEL ENGINE
The Cummins® Turbo 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
Ú
page 177.
Because of the construction of the Cummins®
Turbo Diesel engine, engine run-in is enhanced by
loaded operating conditions which allow the
engine parts to achieve final finish and fit during
the first 6,000 miles (10,000 km).
PARKING BRAKE
Before leaving the vehicle, make sure that the
parking brake is fully applied. Also, be certain to
leave the transmission in PARK.
The foot operated parking brake is located below
the lower left corner of the instrument panel. To
apply the parking brake, firmly push the parking
brake pedal fully. To release the parking brake, pull
the parking brake release handle.

Parking Brake Release
When the parking brake is applied with the ignition
switch ON, the Brake Warning Light in the
instrument cluster will illuminate.
NOTE:
When the parking brake is applied and the
transmission is placed in gear, the Brake
Warning Light will flash. If vehicle speed is
detected, a chime will sound to alert the driver.
Fully release the parking brake before
attempting to move the vehicle.
This light only shows that the parking brake is
applied. It does not show the degree of brake
application.
When parking on a hill, it is important to turn the
front wheels toward the curb on a downhill grade
and away from the curb on an uphill grade. Apply
the parking brake before placing the gear selector
in PARK, otherwise the load on the transmission
locking mechanism may make it difficult to move
the gear selector out of PARK. The parking brake
should always be applied whenever the driver is
not in the vehicle.
WARNING!
Never use the PARK position as a substitute
for the parking brake. Always apply the
parking brake fully when parked to guard
against vehicle movement and possible injury
or damage.
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172STARTING AND OPERATING
Stop filling the DEF tank immediately if DEF
splashes or wells back in the filler neck.
Reinstall cap onto DEF filler tube.
Filling The Def Tank In Cold Climates
Since DEF will begin to freeze at 12°F (-11°C),
your vehicle is equipped with an automatic DEF
heating system. This allows the DEF injection
system to operate properly at temperatures below
12°F (-11°C). If your vehicle is not in operation for
an extended period of time with temperatures
below 12°F (-11°C), the DEF in the tank may
freeze. If the tank is overfilled and freezes, it could
be damaged. Therefore, do not overfill the DEF
tank. Extra care should be taken when filling with
portable containers to avoid overfilling. Note the
level of the DEF gauge in your instrument cluster.
You may safely add a maximum of 2 gallons
(7.5 liters) of DEF from portable containers when
your DEF gauge is reading ½ full.
VEHICLE LOADING
GROSS VEHICLE WEIGHT RATING
(GVWR)
The GVWR is the total permissible weight of your
vehicle including driver, passengers, vehicle,
options and cargo. The label also specifies
maximum capacities of front and rear axle systems
(GAWR). Total load must be limited so GVWR and
front and rear GAWR are not exceeded.
PAYLOAD
The payload of a vehicle is defined as the allowable
load weight a truck can carry, including the weight
of the driver, all passengers, options and cargo.
GROSS AXLE WEIGHT RATING (GAWR)
The GAWR is the maximum permissible load on the
front and rear axles. The load must be distributed
in the cargo area so that the GAWR of each axle is
not exceeded. Each axle GAWR is determined by the components
in the system with the lowest load carrying capacity
(axle, springs, tires or wheels). Heavier axles or
suspension components sometimes specified by
purchasers for increased durability does not
necessarily increase the vehicle's GVWR.
TIRE SIZE
The tire size on the Vehicle Certification Label
represents the actual tire size on your vehicle.
Replacement tires must be equal to the load
capacity of this tire size.
RIM SIZE
This is the rim size that is appropriate for the tire
size listed.
INFLATION PRESSURE
This is the cold tire inflation pressure for your
vehicle for all loading conditions up to full GAWR.
CURB WEIGHT
The curb weight of a vehicle is defined as the total
weight of the vehicle with all fluids, including
vehicle fuel, at full capacity conditions, and with no
occupants or cargo loaded into the vehicle. The
front and rear curb weight values are determined
by weighing your vehicle on a commercial scale
before any occupants or cargo are added.

Never add anything other than DEF to the tank
– especially any form of hydrocarbon such as
diesel fuel, fuel system additives, gasoline, or
any other petroleum-based product. Even a very
small amount of these, less than 100 parts per
million or less than 1 oz. per 78 gallons
(295 liters) will contaminate the entire DEF
system and will require replacement. If owners
use a container, funnel or nozzle when refilling
the tank, it should either be new or one that has
only been used for adding DEF. Mopar®
provides an attachable nozzle with its DEF for
this purpose.

CAUTION!

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192MULTIMEDIA
My Profile
When the My Profile button is pressed on the touchscreen, the system displays options related to the vehicle’s profiles.
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting Name Description
Language This setting will change the language of the Uconnect system and Instrument
Cluster Display. The available languages are English, Français, and Español.
Display Mode This setting will adjust the display for the radio to “Auto” or “Manual”.
“Manual” allows for more customization with the radio display.
Display Brightness Headlights On This setting will allow you to set the brightness when the headlights are on. To
access this setting, Display Mode must be set to “Manual”. The “+” setting will
increase the brightness; the “-” will decrease the brightness.
Display Brightness Headlights Off This setting will allow you to set the brightness when the headlights are off. To
access this setting, Display Mode must be set to “Manual”. The “+” setting will
increase the brightness; the “-” will decrease the brightness.
Set Theme This setting will allow you to change the display theme.
Units The available settings are “Speed” (MPH or km/h), “Distance” (mi or km),
“Fuel Consumption” (MPG [US], MPG [UK], L/100 km, or km/L), “Pressure”
(psi, kPa, or bar), “Temperature” (°C or °F), Power” (HP [US], Gal HP [UK], or
kW), and “Torque” (lb-ft or Nm) units of measurement independently.
Touchscreen Beep This setting will allow you to turn the touchscreen beep on or off.
Show Main Category Bar Labels This setting will allow the main category bar labels to be shown on or off.
Navigation Next Turn Pop-ups Displayed in Cluster This setting will display navigation prompts in the Instrument Cluster Display.
Phone Pop-ups Displayed In Cluster This setting will display smartphone notifications and messages in the
Instrument Cluster Display.

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MULTIMEDIA195
Display
When the Display button is pressed on the touchscreen, the system will display the options related to the theme (if equipped), brightness, and color of the
touchscreen. The available settings are:
NOTE:Depending on the vehicle’s options, feature settings may vary.
Setting Name Description
Language This setting will change the language of the Uconnect system and Instrument
Cluster Display. The available languages are English, Français, and Español.
Display Mode This setting will allow you to set the brightness manually or have the system
set it automatically. The “Auto” setting has the system automatically adjust
the display brightness. The “Manual” setting will allow the user to adjust the
brightness of the display.
Display Brightness With Headlights ON/Brightness This setting will allow you to set the brightness when the headlights are on. To
access this setting, Display Mode must be set to Manual. The “+” setting will
increase the brightness; the “-” will decrease the brightness.
Display Brightness With Headlights OFF/Brightness This setting will allow you to set the brightness when the headlights are off. To
access this setting, Display Mode must be set to Manual. The “+” setting will
increase the brightness; the “-” will decrease the brightness.
Set Theme This setting will allow you to change the display theme.
Units The available settings are “Speed” (MPH or km/h), “Distance” (mi or km),
“Fuel Consumption” (MPG [US], MPG [UK], L/100 km, or km/L), “Pressure”
(psi, kPa, or bar), “Temperature” (°C or °F), Power” (HP [US], Gal HP [UK], or
kW), and “Torque” (lb-ft or Nm) units of measurement independently.
Keyboard This setting will change the keyboard type on the display. The selectable
keyboards are “ABCDEF Keyboard”, “QWERTY Keyboard”, and “AZERTY
Keyboard”.
5

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246MULTIMEDIA
Guardian™ connected services. There will be
additional settings to confirm on the following
screen.
7. AUTHORIZE the account to return to the Skill.
You can now begin using the Skill
on Alexa!
Google Assistant — If Equipped
With the Google Assistant, you can get help and
keep tabs on your car. Google Assistant is available
across your devices, including Android™ phones,
iPhone® devices, or voice-activated speakers, like
Google Home. If you need assistance, ask Google
for help, or for a complete list of commands by
saying: “Hey Google, ask for help
with my car.”
Here are a few examples of commands:
“Hey Google, ask to start my
with your Voice Code.”
“Hey Google, ask to lock my
with your Voice Code.”
“Hey Google, ask to send
1000 Chrysler Drive, Auburn Hills, Michigan to
my .”
“Hey Google, ask what is the
fuel level of my .” To link your Uconnect account with Google
Assistant, follow these steps:

1. Download and install the Google Assistant
app on your smart phone from the App
Store® or Google Play.

2. After installation, log in to the Google Assistant app with your Gmail ID. Verify your account by
pressing the icon in the upper right-hand
corner.
3. Press the Discover button in the bottom left corner of the screen. Enter the vehicle brand
name.
4. A prompt will appear to link your Uconnect account. Press “Link Uconnect to Google”.
5. Press “Sign In” and enter the email address and password you created when you activated
SiriusXM Guardian™. There will be additional
settings to confirm on the following screen.
6. Lastly, press “Authorize” to complete the linking process.
Now, you can ask Google Assistant to help you:
Remotely start the engine, or cancel a remote
start
Send a destination to your vehicle’s built-in
Uconnect Navigation system
Monitor vehicle vitals, such as tire pressure, fuel
level and oil life
And more!
Family Drive Alerts — If Equipped
Description
Family Drive Alerts help promote safer driving and
give you peace of mind when your loved ones are
out on the road. You can set boundary limits,
monitor driving speed, and pinpoint your vehicle’s
location any time, any place. Use the Mobile App to
set alerts:
Boundary Alert
Receive a notification the moment your vehicle
is driven either out of or into a geographic
boundary that you set.
Curfew Alert
Receive a notification when your car is being
driven outside of the curfew time.
Speed Alert
Receive a notification whenever your car
exceeds a speed limit you set.
Valet Alert
Receive a notification if and when your vehicle is
driven outside a quarter-mile radius of a valet
drop-off zone.

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