2021 RAM CHASSIS CAB key

266MULTIMEDIA
Place/Retrieve A Call From Hold
During an active call, press the Hold or Call On
Hold button on the Phone main screen.
Making A Second Call While Current Call Is In
Progress
You can place a call on hold by pressing the
Hold button on the Phone main screen, then
dial a number from the keypad (if supported by
your mobile phone), recent calls, SMS Inbox or
from the phonebooks.
Toggling Between Calls

Uconnect 3 With 5-inch Display

If two calls are in progress (one active and one
on hold), press the Swap Calls button on the
phone main screen. Only one call can be placed
on hold at a time. You can also push the Phone button to toggle
between the active and held phone call.
Join Calls
When two calls are in progress (one active and
one on hold), press the Join/Merge Calls button
on the Phone main screen to combine all calls
into a conference call.
Call Termination

To end a call in progress, momentarily press the
End Call button on the touchscreen or the Phone
End button on the steering wheel. Only the active
call(s) will be terminated and if there is a call on
hold, it will become the new active call.

Redial
Push the VR button and after the “Listening”
prompt and the following beep, say “Redial.”
The Uconnect Phone will call the last number
that was dialed from your mobile phone.
Call Continuation
Call continuation is the progression of a phone
call on the Uconnect Phone after the vehicle
ignition has been switched to OFF.
NOTE:
The call will remain within the vehicle audio
system until the phone becomes out of range
for the Bluetooth® connection. It is recom
-
mended to press the Transfer button on the
touchscreen when leaving the vehicle.
Advanced Phone Connectivity
Transfer Call To And From Mobile Phone
The Uconnect Phone allows ongoing calls to be
transferred from your mobile phone without
terminating the call. To transfer an ongoing call
from your connected mobile phone to the
Uconnect Phone or vice versa, press the
Transfer button on the Phone main screen.

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MULTIMEDIA269

The system is designed to keep your eyes on the
road and your hands on the wheel by letting Siri
help you perform useful tasks.

To enable Siri, push and hold, then release the
Uconnect Voice Recognition (VR) button on the
steering wheel. After you hear a double beep,
you can ask Siri to play podcasts and music, get
directions, read text messages, and many other
useful requests.
Bluetooth® Communication Link

Mobile phones may lose connection to the Uconnect
Phone. When this happens, the connection can
generally be re-established by restarting the mobile
phone. Your mobile phone is recommended to
remain in Bluetooth® ON mode.

Power-Up

After switching the ignition key from OFF to either
the ON/RUN or ACC position, or after a language
change, you must wait at least 15 seconds prior
to using the system
Ú
page 449.
RADIO OPERATION AND MOBILE PHONES

Under certain conditions, the mobile phone being
on in your vehicle can cause erratic or noisy
performance from your radio. This condition may be
lessened or eliminated by relocating the mobile
phone antenna. This condition is not harmful to
the radio. If your radio performance does not
satisfactorily “clear” by the repositioning of the
antenna, it is recommended that the radio volume
be turned down or off during mobile phone
operation when not using Uconnect (if equipped).

REGULATORY AND SAFETY
I
NFORMATION
USA/CANADA
Exposure to Radio Frequency Radiation
The radiated output power of the internal
wireless radio is far below the FCC and IC radio
frequency exposure limits. Nevertheless, the
wireless radio will be used in such a manner
that the radio is 8 in (20 cm) or further from the
human body. The internal wireless radio operates within
guidelines found in radio frequency safety
standards and recommendations, which reflect
the consensus of the scientific community.
The radio manufacturer believes the internal
wireless radio is safe for use by consumers.
The level of energy emitted is far less than the
electromagnetic energy emitted by wireless
devices such as mobile phones. However, the
use of wireless radios may be restricted in some
situations or environments, such as aboard
airplanes. If you are unsure of restrictions, you
are encouraged to ask for authorization before
turning on the wireless radio Ú
page 449.
5

21_DPF_OM_EN_USC_t.book Page 269

282SAFETY
the driver intends to avoid the collision by
braking but has not applied sufficient brake
force, the system will compensate and provide
additional brake force as required.
If an FCW with Mitigation event begins at a
speed below 32 mph (52 km/h), the system
may provide the maximum braking possible to
mitigate the potential forward collision. If the
Forward Collision Warning with Mitigation event
stops the vehicle completely, the system will
hold the vehicle at standstill for two seconds
and then release the brakes.

FCW Message
When the system determines a collision with
the vehicle in front of you is no longer probable,
the warning message will be deactivated
Ú
page 449.
NOTE:
The minimum speed for FCW activation is
3 mph (5 km/h).
The FCW alerts may be triggered on objects
other than vehicles such as guard rails or
sign posts based on the course prediction.
This is expected and is a part of normal FCW
activation and functionality.
It is unsafe to test the FCW system.
To prevent such misuse of the system, after
four Active Braking events within a key cycle,
the Active Braking portion of FCW will be
deactivated until the next key cycle.
The FCW system is intended for on-road use
only. If the vehicle is taken off-road, the FCW
system should be deactivated to prevent
unnecessary warnings to the surroundings.
Turning FCW On or Off
The FCW button is located in the Uconnect
display in the control settings Ú page 228.
NOTE:
When the FCW is “on”, this allows the system
to warn the driver of a possible collision with
the vehicle in front.
When the FCW is “off”, this prevents the
system from warning the driver of a possible
collision with the vehicle in front. If the FCW
is set to “off”, “FCW OFF" will be displayed in
the instrument cluster display.
WARNING!
Forward Collision Warning (FCW) is not
intended to avoid a collision on its own,
nor can FCW detect every type of potential
collision. The driver has the responsibility to
avoid a collision by controlling the vehicle via
braking and steering. Failure to follow this
warning could lead to serious injury or death.

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310SAFETY
Enhanced Accident Response System
In the event of an impact, if the communication
network remains intact, and the power remains
intact, depending on the nature of the event,
the ORC will determine whether to have the
Enhanced Accident Response System perform
the following functions:
Cut off fuel to the engine (if equipped).
Cut off battery power to the electric motor
(if equipped).
Flash hazard lights as long as the battery has
power.
Turn on the interior lights, which remain on
as long as the battery has power or for
15 minutes from the intervention of the
Enhanced Accident Response System.
Unlock the power door locks.
Your vehicle may also be designed to perform
any of these other functions in response to the
Enhanced Accident Response System:
Turn off the Fuel Filter Heater, Turn off the
HVAC Blower Motor, Close the HVAC Circula -
tion Door
Cut off battery power to the:
Engine
Electric Motor (if equipped)
Electric power steering
Brake booster
Electric park brake
Automatic transmission gear selector
Horn
Front wiper
Headlamp washer pump
NOTE:

After an accident, remember to place the ignition
to the STOP (OFF/LOCK) position and remove the
key from the ignition switch to avoid draining the
battery. Carefully check the vehicle for fuel leaks
in the engine compartment and on the ground
near the engine compartment and fuel tank
before resetting the system and starting the
engine. If there are no fuel leaks or damage to
the vehicle electrical devices (e.g. headlights)
after an accident, reset the system by following
the procedure described below. If you have any
doubt, contact an authorized dealer.

Enhanced Accident Response System
Reset Procedure
In order to reset the Enhanced Accident
Response System functions after an event, the
ignition switch must be changed from ignition
START or ON/RUN to ignition OFF. Carefully
check the vehicle for fuel leaks in the engine
compartment and on the ground near the
engine compartment and fuel tank before
resetting the system and starting the engine.
After an accident, if the vehicle will not start
after performing the reset procedure, the
vehicle must be towed to an authorized dealer
to be inspected and to have the Enhanced
Accident Response System reset.

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332SAFETY
(Continued)
PERIODIC SAFETY CHECKS YOU SHOULD
M
AKE OUTSIDE THE VEHICLE
Tires
Examine tires for excessive tread wear and
uneven wear patterns. Check for stones, nails,
glass, or other objects lodged in the tread or
sidewall. Inspect the tread for cuts and cracks.
Inspect sidewalls for cuts, cracks, and bulges.
Check the lug nuts/bolt torque for tightness.
Check the tires (including spare) for proper cold
inflation pressure.
Lights
Have someone observe the operation of brake
lights and exterior lights while you work the
controls. Check turn signal and high beam
indicator lights on the instrument panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight
parking for fuel, coolant, oil, or other fluid leaks.
Also, if gasoline fumes are detected or if fuel or
brake fluid leaks are suspected, the cause
should be located and corrected immediately.
ONLY use the passenger’s side floor mat on
the passenger’s side floor area.

ALWAYS make sure objects cannot fall or
slide into the driver’s side floor area when the
vehicle is moving. Objects can become trapped
under accelerator, brake, or clutch pedals and
could cause a loss of vehicle control.

NEVER place any objects under the floor
mat (e.g., towels, keys, etc.). These objects
could change the position of the floor mat
and may cause interference with the accel -
erator, brake, or clutch pedals.

If the vehicle carpet has been removed and
re-installed, always properly attach carpet to
the floor and check the floor mat fasteners
are secure to the vehicle carpet. Fully
depress each pedal to check for interference
with the accelerator, brake, or clutch pedals
then re-install the floor mats.

WARNING! (Continued)
It is recommended to only use mild soap
and water to clean your floor mats. After
cleaning, always check your floor mat has
been properly installed and is secured to
your vehicle using the floor mat fasteners
by lightly pulling mat.
WARNING! (Continued)

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350IN CASE OF EMERGENCY
TOWING A DISABLED VEHICLE
This section describes procedures for towing a disabled vehicle using a commercial towing service. If the transmission and drivetrain are operable,
disabled vehicles may also be towed as described Ú page 215.
Proper towing or lifting equipment is required to
prevent damage to your vehicle. Use only tow
bars and other equipment designed for this
purpose, following equipment manufacturer’s
instructions. Use of safety chains is mandatory.
Attach a tow bar or other towing device to main
structural members of the vehicle, not to
fascia/bumpers or associated brackets. State
and local laws regarding vehicles under tow
must be observed. If you must use the accessories (wipers,
defrosters, etc.) while being towed, the ignition
must be in the ON/RUN mode, not the ACC
mode.
If the key fob is unavailable or the vehicle's
battery is discharged, Ú
page 348.
Towing Condition
Wheels OFF The
Ground 2WD Models
4WD Models
Flat Tow NONEIf transmission is operable:

• Transmission in NEUTRAL
• 30 mph (48 km/h) max speed
• 15 miles (24 km) max distance (6–speed transmission)
• 30 miles (48 km) max distance (8–speed transmission) Detailed instructions Ú
page 215
• Auto Transmission in PARK
• Transfer Case in NEUTRAL
• Tow in forward direction
Wheel Lift Or Dolly Tow Front
NOT ALLOWED
Rear OK NOT ALLOWED
Flatbed ALL BEST METHOD BEST METHOD
CAUTION!
Do not use sling type equipment when
towing. Vehicle damage may occur.
When securing the vehicle to a flat bed
truck, do not attach to front or rear suspen-
sion components. Damage to your vehicle
may result from improper towing.

21_DPF_OM_EN_USC_t.book Page 350

SERVICING AND MAINTENANCE379
Use of biodiesel mixture in excess of 20% can
negatively impact the fuel filter's ability to
separate water from the fuel, resulting in
high pressure fuel system corrosion or
damage.
Ethanol blends are not recommended or
approved for use with your Cummins diesel
engine.
In addition, commercially available fuel addi -
tives are not necessary for the proper opera -
tion of your Cummins diesel engine.
INTERVENTION REGENERATION
S
TRATEGY — MESSAGE PROCESS FLOW
The Cummins diesel engine meets all
Environmental Protection Agency (EPA) Heavy
Duty Diesel Engine 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. The engine and exhaust
after-treatment system work together to achieve
the EPA Heavy Duty Diesel Engine Emissions
Standards. These systems are seamlessly
integrated into your vehicle and managed by the Cummins 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.
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.

Additionally, your vehicle has the ability to alert
you to additional maintenance required on your
truck or engine Ú
page 90.
DIESEL EXHAUST FLUID
Diesel Exhaust Fluid (DEF) sometimes known
simply by the name of its active component,
UREA—is a key component of Selective Catalytic
Reduction (SCR) systems, which help diesel
vehicles meet stringent emission regulations.
DEF is a liquid reducing agent that reacts with
engine exhaust in the presence of a catalyst to
convert smog-forming nitrogen oxides (NOx)
into harmless nitrogen and water vapor
Úpage 440.
You can receive assistance in locating DEF in
the United States by calling 866-RAM-INFO
(866-726-4636). In Canada call
1–800–465–2001 (English) or
1–800–387–9983 (French)
WARNING!
A hot exhaust system can start a fire if you
park over materials that can burn. Such
materials might be grass or leaves coming
into contact with your exhaust system. Do not
park or operate your vehicle in areas where
your exhaust system can contact anything
that can burn.
8

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SERVICING AND MAINTENANCE397
F32– –Spare
F33 20 Amp Blue –Trans Control Module – If Equipped
F34 30 Amp Pink –Vehicle System Interface Module #2 – If Equipped
F35 30 Amp Pink –Sunroof – If Equipped
F36 30 Amp Pink –Electric Back Light – If Equipped
F37 30 Amp Pink –Diesel Frame / Fuel Heater #2– If Equipped
F38 30 Amp Pink –Integrated Trailer Brake Module – If Equipped
F39 – –Spare
F40 –10 Amp Red Ventilated Seats – If Equipped
F41 –10 Amp Red Active Grille Shutter / Active Air Dam – If Equipped
F42 –20 Amp Yellow Horn
F43 –15 Amp Blue Heated Steering Wheel – If Equipped
F44 –10 Amp Red Diagnostic Port
F46 –10 Amp Red Upfitters Relay Coil – If Equipped
F47 – –Spare
F48 – –Spare
F49 –10 Amp Red IP Cluster / CSG
F50 –20 Amp Yellow Air Suspension Control Module – If Equipped
F51 –10 Amp RedIgnition Node Module / Keyless Ignition Node Module, Radio Frequency
Hub Module / Electric Steering Column Lock - If Equipped
F52 –5 Amp Tan Battery Sensor
Cavity Cartridge Fuse Micro Fuse Description
8

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