2021 RAM CHASSIS CAB display

198STARTING AND OPERATING
(Continued)
NOTE:
The DEF 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.
At 40°F (4°C) you could see some increase
in the DEF gauge due to the tank thawing.
The gauge and level sensor are working prop-
erly and is just updating with proper thawed
DEF.
Excessive overfilling of the DEF tank can
result in a MIL lamp/fault code and inaccu -
rate level readings. Refilling With Nozzles
You can fill up at any DEF distributor.
Proceed as follows:
Insert the DEF nozzle in the filler, start
refilling and stop refilling at the first shut-off
(the shut-off indicates that the DEF tank is
full). DO NOT proceed with the refilling, to
prevent spillage of DEF.
Extract the nozzle.
Refilling With Containers
Proceed as follows:
Check the expiration date.
Read the advice for use on the label before
pouring the content of the bottle into the DEF
tank.
After the indication appears on the instru -
ment panel display Ú page 90 fill the DEF
tank with no more than 6 Gallons (22 liters).
CAUTION!
To avoid DEF spillage, and possible
damage to the DEF tank from overfilling, do
not “top off” the DEF tank after filling.
DO NOT OVERFILL. DEF will freeze below
12ºF (-11ºC). The DEF system is designed
to work in temperatures below the DEF
freezing point, however, if the tank is over -
filled and freezes, the system could be
damaged.
When DEF is spilled, clean the area imme -
diately with water and use an absorbent
material to soak up the spills on the ground.
Do not attempt to start your engine if DEF is
accidentally added to the diesel fuel tank
as it can result in severe damage to your
engine, including but not limited to failure
of the fuel pump and injectors.

21_DPF_OM_EN_USC_t.book Page 198

STARTING AND OPERATING207
Integrated Trailer Brake Module — If
Equipped
Your vehicle may have an Integrated Trailer
Brake Module (ITBM) for Electric and Electric
Over Hydraulic (EOH) trailer brakes.
NOTE:
This module has been designed and verified
with electric trailer brakes and new EOH
systems. Some previous EOH systems may not
be compatible with ITBM.

Integrated Trailer Brake Module (ITBM)
The user interface consists of the following:
Manual Brake Control Lever
Slide the manual brake control lever to the left
to activate power to the trailer's electric brakes
independent of the tow vehicle's brakes. If the
manual brake control lever is activated while
the brake is also applied, the greater of the two
inputs determines the power sent to the trailer
brakes.
The trailer and the vehicle’s stop lamps will
come on when braking normally with the vehicle
brake pedal. Only the trailer stop lamps will
come on when the manual brake control lever is
applied.
Trailer Brake Status Indicator Light
This light indicates the trailer electrical
connection status.

If no electrical connection is detected after the
ignition is turned on, pushing the GAIN adjustment
button or sliding the manual brake control lever will
display the GAIN setting for 10 seconds and the
“Trailer Brake Status Indicator Light” will not be
displayed.

WARNING!
Do not connect trailer brakes to your
vehicle's hydraulic brake lines. It can over
-
load your brake system and cause it to fail.
You might not have brakes when you need
them and could have an accident.
Towing any trailer will increase your stop -
ping distance. When towing, you should
allow for additional space between your
vehicle and the vehicle in front of you.
Failure to do so could result in an accident.
CAUTION!
If the trailer weighs more than 1,000 lbs
(453 kg) loaded, it should have its own
brakes and they should be of adequate
capacity. Failure to do this could lead to
accelerated brake lining wear, higher brake
pedal effort, and longer stopping distances.
1 — GAIN - Adjustment Button
2 — GAIN + Adjustment Button
3 — Manual Brake Control Lever
4

21_DPF_OM_EN_USC_t.book Page 207

208STARTING AND OPERATING
If a fault is detected in the trailer wiring or the
Integrated Trailer Brake Module (ITBM), the
“Trailer Brake Status Indicator Light” will flash.
GAIN Adjustment Buttons (+/-)
Pushing these buttons will adjust the brake
control power output to the trailer brakes in
0.5 increments. The GAIN setting can be
increased to a maximum of 10 or decreased
to a minimum of 0 (no trailer braking).
GAIN
The GAIN setting is used to set the trailer brake
control for the specific towing condition and
should be changed as towing conditions
change. Changes to towing conditions include
trailer load, vehicle load, road conditions and
weather.
Adjusting GAIN
NOTE:
This should only be performed in a traffic-free
environment at speeds of approximately
20–25 mph (30–40 km/h).
1. Make sure the trailer brakes are in good
working condition, functioning normally
and properly adjusted. See a trailer dealer
if necessary.

2. Hook up the trailer and make the electrical connections according to the trailer
manufacturer's instructions.
3. When a trailer with electric/EOH brakes is plugged in, the trailer connected message
should appear in the instrument cluster
display (if the connection is not recognized
by the ITBM, braking functions will not be
available), the GAIN setting will illuminate
and the correct type of trailer must be
selected from the instrument cluster display
options.
4. Push the UP or DOWN button on the steering wheel until “TRAILER TOW”
appears on the screen.
5. Push the RIGHT arrow on the steering wheel to enter “TRAILER TOW”. 6. Push the UP or DOWN buttons until the
Trailer Brake Type appears on the screen.
7. Push the RIGHT arrow and then push the UP or DOWN buttons until the proper Trailer
Brake Type appears on the screen.
8. In a traffic-free environment, tow the trailer on a dry, level surface at a speed of
20–25 mph (30–40 km/h) and squeeze
the manual brake control lever completely.
9. If the trailer wheels lockup (indicated by squealing tires), reduce the GAIN setting; if
the trailer wheels turn freely, increase the
GAIN setting.
Repeat steps 8 and 9 until the GAIN setting is at
a point just below trailer wheel lockup. If towing
a heavier trailer, trailer wheel lockup may not be
attainable even with the maximum GAIN setting
of 10.

21_DPF_OM_EN_USC_t.book Page 208

STARTING AND OPERATING209
* The suggested selection depends and
may change depending on the customer
preferences for braking performance. Condition
of the trailer brakes, driving and road state may
also affect the selection.
Display Messages
The trailer brake control interacts with the
instrument cluster display. Display messages,
along with a single chime, will be displayed
when a malfunction is determined in the trailer
connection, trailer brake control, or on the
trailer Úpage 90. NOTE:
An aftermarket controller may be available
for use with trailers with air or EOH trailer
brake systems. To determine the type of
brakes on your trailer and the availability of
controllers, check with your trailer manufac
-
turer or dealer.
Removal of the ITBM will cause errors and it
may cause damage to the electrical system
and electronic modules of the vehicle. See an
authorized dealer if an aftermarket module is
to be installed.
Towing Requirements — Trailer Lights And
Wiring
Whenever you pull a trailer, regardless of the
trailer size, stoplights and turn signals on the
trailer are required for motoring safety.
The Trailer Tow Package may include a four- and
seven-pin wiring harness. Use a factory
approved trailer harness and connector.
NOTE:
Do not cut or splice wiring into the vehicle’s
wiring harness.
The electrical connections are all complete to
the vehicle but you must mate the harness
to a trailer connector. Refer to the following
illustrations.
Light Electric Heavy Electric Light EOHHeavy EOH
Type of Trailer Brakes Electric Trailer Brakes Electric Trailer Brakes Electric over Hydraulic
Trailer BrakesElectric over Hydraulic
Trailer Brakes
Load
*Under 10,000 lbs (4,536 kg) *Above 10,000 lbs (4,536 kg) *Under 10,000 lbs (4,536 kg) *Above 10,000 lbs (4,536 kg)

WARNING!

Connecting a trailer that is not compatible with
the ITBM system may result in reduced or
complete loss of trailer braking. There may be a
increase in stopping distance or trailer instability
which could result in personal injury.

CAUTION!
Connecting a trailer that is not compatible
with the ITBM system may result in reduced
or complete loss of trailer braking. There may
be a increase in stopping distance or trailer
instability which could result in damage to
your vehicle, trailer, or other property.4

21_DPF_OM_EN_USC_t.book Page 209

220
MULTIMEDIA
UCONNECT SYSTEMS

For detailed information about your Uconnect 3.0

Ú
page 221.

For detailed information about your Uconnect 3
With 5-inch Display Ú page 244.
For detailed information about your Uconnect
4/4C/4C NAV With 8.4-inch Display system or
your Uconnect 4C NAV With 12-inch Display
system, refer to your Uconnect Owner’s Manual
Supplement.
NOTE:
Uconnect screen images are for illustration
purposes only and may not reflect exact soft -
ware for your vehicle.
CYBERSECURITY
Your vehicle may be a connected vehicle and
may be equipped with both wired and wireless
networks. These networks allow your vehicle to
send and receive information. This information
allows systems and features in your vehicle to
function properly.

Your vehicle may be equipped with certain security
features to reduce the risk of unauthorized and
unlawful access to vehicle systems and wireless
communications. Vehicle software technology
continues to evolve over time and FCA US LLC,
working with its suppliers, evaluates and takes
appropriate steps as needed. Similar to a computer
or other devices, your vehicle may require software
updates to improve the usability and performance
of your systems or to reduce the potential risk of
unauthorized and unlawful access to your vehicle
systems.

The risk of unauthorized and unlawful access to
your vehicle systems may still exist, even if the
most recent version of vehicle software (such as
Uconnect software) is installed.
WARNING!
It is not possible to know or to predict all of
the possible outcomes if your vehicle’s
systems are breached. It may be possible
that vehicle systems, including safety
related systems, could be impaired or a
loss of vehicle control could occur that may
result in an accident involving serious injury
or death.
ONLY insert media (e.g., USB or CD) into
your vehicle if it came from a trusted
source. Media of unknown origin could
possibly contain malicious software, and
if installed in your vehicle, it may increase
the possibility for vehicle systems to be
breached.
As always, if you experience unusual
vehicle behavior, take your vehicle to your
nearest authorized dealer immediately.

21_DPF_OM_EN_USC_t.book Page 220

MULTIMEDIA221
NOTE:
FCA US LLC or your dealer may contact you
directly regarding software updates.
To help further improve vehicle security and
minimize the potential risk of a security
breach, vehicle owners should:
Routinely check www.driveuconnect.com
(US Residents) or www.driveuconnect.ca
(Canadian Residents) to learn about
available Uconnect software updates.
Only connect and use trusted media
devices (e.g. personal mobile phones,
USBs, CDs).
Privacy of any wireless and wired
communications cannot be assured. Third
parties may unlawfully intercept information
and private communications without your
consent Ú page 116.
UCONNECT 3.0
INTRODUCTION

Uconnect 3.0
1 — RADIO
Push the RADIO button on the faceplate to enter
the Radio Mode. The different tuner modes, AM,
FM, and SXM (if equipped), can be selected by
pushing the RADIO button on the faceplate until
the desired tuner mode is displayed.
2 — MEDIA
Pushing the MEDIA button on the faceplate will
allow you to switch from AM/FM/SXM modes to
Media mode (USB/AUX).
3 — Play/Pause/MUTE
Push to Play, Pause or Mute music or an active
phone call.
4 — Presets 1–6
These buttons on the faceplate tune the radio to
the stations that you commit to memory AM (A,
B, C), FM (A, B, C) and Satellite (A, B, C) — 15 AM,
15 FM and 15 SAT stations.
5 — Seek Down
Push the SEEK DOWN button on the faceplate
to tune the radio to the previous listenable
station or channel.
WARNING!
ALWAYS drive safely with your hands on the
steering wheel. You have full responsibility
and assume all risks related to the use of the
Uconnect features and applications in this
vehicle. Only use Uconnect when it is safe
to do so. Failure to do so may result in an
accident involving serious injury or death.
5

21_DPF_OM_EN_USC_t.book Page 221

222MULTIMEDIA
6 — ON/VOLUME
Push the ON/VOLUME control knob to turn on
the radio. Push the ON/VOLUME control knob a
second time to turn off the radio.
The volume control turns continuously
(360 degrees) in either direction without
stopping. Turning the ON/VOLUME control knob
to the right increases the volume and to the left
decreases it.
7 — AUDIO
Push the Audio button on the faceplate to
adjust the Bass, Mid Range, Treble, Balance or
Fade.
8 — MENU
Push the Menu button on the faceplate to scroll
between the setting submenus.
9 — Phone Pick Up
Push the Phone Pick Up button to initiate or
answer a phone call and send or receive a text.
10 — Phone Hang Up
Push the Phone Hang Up button to end a call. 11 — Seek Up
Push the SEEK UP button on the faceplate to
tune the radio to the next listenable station or
channel.
12 — ENTER/BROWSE & TUNE/SCROLL
Push the Enter/Browse button to accept a
highlighted selection on the screen. Rotate the
Tune/Scroll knob to scroll through a list or tune
a radio station.
13 — BACK
Push the Back button on the faceplate to return
to a previous menu or screen.
RADIO MODE
Operating Radio Mode
The radio is equipped with the following modes:
FM
AM
SXM SiriusXM® Satellite Radio (if equipped)
Push the Radio button on the faceplate to enter
the Radio Mode. The different tuner modes, AM,
FM, and SXM, can then be selected by pushing
the Radio button until the desired tuner mode is
displayed.
Switching The System ON/OFF
Push the On/Off Volume Control knob to turn on
the radio. Push the On/Off Volume Control knob
a second time to turn off the radio.
When the audio system is turned on, the sound
will be set at the same volume level as last
played.
Volume Control
The electronic volume control turns
continuously (360 degrees) in either direction
without stopping. Turning the On/Off & Volume
control knob to the right increases the volume
and to the left decreases it.
Enter/Browse And Tune/Scroll Control
Turn the rotary Tune/Scroll control knob
clockwise to increase or counterclockwise to
decrease the radio station frequency.
When scrolling through a list, push the
Enter/Browse button on the faceplate to
choose a selection.

21_DPF_OM_EN_USC_t.book Page 222

224MULTIMEDIA
Audio
Push Audio button. Turning the Tune/Scroll
knob highlights the desired selection.
The Audio Menu shows the following options for
you to customize the audio settings:
Treble, Mid, Bass, Fade And Balance — Select
the desired setting to adjust, then push the
Enter/Browse button. Turn the Tune/Scroll
knob to adjust the setting + or – 9. Push the
BACK button on the faceplate when done.
Speed Adjusted Volume (if equipped) —
Select Speed Adjusted Volume and push the
Enter/Browse button. Turn the Tune/Scroll
knob to adjust the setting to Off, 1, 2, or 3.
Push the Back button on the faceplate when
done.
Loudness (if equipped) — Select Loudness
and push the Enter/Browse button to mark
the check box on or off. Push the Back button
on the faceplate when done.
AUX Volume Offset (if equipped) — Select AUX
Volume Offset and push the Enter/Browse
button. Turn the Tune/Scroll knob to adjust
the setting + or – 3. Push the Back button on
the faceplate when done.
Clock Setting

1. Push the Menu button at the bottom of the
radio, and push the Enter/Browse button
for System Settings. Next, select the Time
and Format setting and then select Set
Time by pushing the Enter/Browse button.

2. Adjust the hours or minutes by turning the Tune/Scroll knob, then pushing the
Enter/Browse button to move to the next
entry. You can also select 12 hr or 24 hr
format by turning the Tune/Scroll knob,
then pushing the Enter/Browse button on
the desired selection.
3. Once the time is set, press the Back button to exit the time screen.
MEDIA MODE
Operating Media Mode
Media Mode is entered by pushing the Media
button on the faceplate located to the left of the
display. Once in Media Mode, press the Media
button in order to select the desired media
source. Audio Source Selection
Push the Media button on the faceplate to
select the desired audio source, AUX, USB or
Bluetooth® audio device.
Seek Up/Seek Down
Push and release the Seek Up button on the
faceplate for the next selection.
Push and release the Seek Down button on
the faceplate to return to the beginning of the
current selection, or return to the beginning of
the previous selection if the Media is within the
first three seconds of the current selection.
Fast Seek Up
Push and hold the Seek Up button on the
faceplate and the desired mode will begin to
fast forward through the current track until the
button on the faceplate is released.
Fast Seek Down
Push and hold the Seek Down button on the
faceplate and the desired mode will begin to
rewind through the current track until the
button on the faceplate is released.

21_DPF_OM_EN_USC_t.book Page 224