2021 RAM CHASSIS CAB warning

STARTING AND OPERATING183
LANESENSE — IF EQUIPPED
LANESENSE OPERATION
The LaneSense system is operational at speeds
above 37 mph (60 km/h) and below 112 mph
(180 km/h). It uses a forward looking camera to
detect lane markings and measure vehicle
position within the lane boundaries.
When both lane markings are detected and the
driver drifts out of the lane (no turn signal has
been applied) OR the driver departs the lane on
the opposite side of the applied turn signal (if the left turn signal is applied and the vehicle
departs to the right), the LaneSense system
provides a haptic warning in the form of torque
applied to the steering wheel, as well as a visual
warning in the instrument cluster display to
prompt the driver to remain within the lane
boundaries.
The driver may manually override the haptic
warning by applying torque into the steering
wheel at any time.
When only a single lane marking is detected
and the driver drifts across that lane marking
(no turn signal applied), the LaneSense system
provides a visual warning through the
instrument cluster display to prompt the driver
to remain within the lane.
When only a single lane marking is detected, a
haptic (torque) warning will not be provided.
NOTE:
When operating conditions have been met, the
LaneSense system will monitor if the driver’s
hands are on the steering wheel and provide
an audible and visual warning to the driver if
removed. The system will cancel if the driver
does not return their hands to the wheel.
WARNING!

Drivers must be careful when backing up
even when using ParkSense. Always check
carefully behind your vehicle, look behind
you, and be sure to check for pedestrians,
animals, other vehicles, obstructions, and
blind spots before backing up. You are
responsible for safety and must continue to
pay attention to your surroundings. Failure to
do so can result in serious injury or death.

Before using ParkSense, it is strongly
recommended that the ball mount and
hitch ball assembly be disconnected from
the vehicle when the vehicle is not used for
towing. Failure to do so can result in injury
or damage to vehicles or obstacles
because the hitch ball will be much closer
to the obstacle than the rear fascia when
the vehicle sounds the continuous tone.
Also, the sensors could detect the ball
mount and hitch ball assembly, depending
on its size and shape, giving a false indica
-
tion that an obstacle is behind the vehicle.
CAUTION!

ParkSense is only a parking aid and it is
unable to recognize every obstacle, including
small obstacles. Parking curbs might be
temporarily detected or not detected at all.
Obstacles located above or below the
sensors will not be detected when they are in
close proximity.

The vehicle must be driven slowly when
using ParkSense in order to be able to stop
in time when an obstacle is detected. It is
recommended that the driver looks over
his/her shoulder when using ParkSense.4

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184STARTING AND OPERATING
TURNING LANESENSE ON OR OFF
The LaneSense button is located on
the switch panel below the Uconnect
display.
NOTE:
If your vehicle is equipped with a 12–inch
Uconnect Display screen, the LaneSense button
is located above the display.

To turn the LaneSense system on, push the
LaneSense button (LED turns off). A “LaneSense
On” message is shown in the instrument cluster
display.

To turn the LaneSense system off, push the
LaneSense button again (LED turns on).
NOTE:
The LaneSense system will retain the last
system state (on or off) from the last ignition
cycle when the ignition is changed to the
ON/RUN position.
LANESENSE WARNING MESSAGE
The LaneSense system will indicate the current
lane drift condition through the instrument
cluster display.
When the LaneSense system is on, the lane
lines are gray when both of the lane boundaries
have not been detected and the LaneSense
telltale is solid white.

System ON (Gray Lines) With White Telltale
Left Lane Departure — Only Left Lane Detected

When the LaneSense system is on, the Lane -
Sense Telltale is solid white when only the
left lane marking has been detected and the
system is ready to provide visual warnings in
the instrument cluster display if an uninten -
tional lane departure occurs on the left side.
When the LaneSense system senses the lane
has been approached and is in a lane depar -
ture situation, the visual warning in the
instrument cluster display will show the left
lane line flashing yellow (on/off). The Lane -
Sense telltale changes from solid white to
flashing yellow.

Lane Crossed (Flashing Yellow Lane Line) With Yellow Telltale

NOTE:
The LaneSense system operates with similar
behavior for a right lane departure when only
the right lane marking has been detected.

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STARTING AND OPERATING185
Left Lane Departure — Both Lane Lines
Detected
When the LaneSense system is on, and both
the lane markings have been detected, the
system is "armed" to provide visual warnings
in the instrument cluster display and a torque
warning in the steering wheel if an uninten -
tional lane departure occurs. The lane lines
turn from gray to white and the LaneSense
telltale is solid green.

Lanes Sensed (White Lines) With Green Telltale

When the LaneSense system senses a lane
drift situation, the left lane line turns solid
yellow. The LaneSense telltale changes
from solid green to solid yellow. At this time
torque is applied to the steering wheel in the
opposite direction of the lane boundary.

For example: If approaching the left side of the
lane the steering wheel will turn to the right.
Lane Approached (Solid Yellow Lane Line) With Solid Yellow Telltale
When the LaneSense system senses the lane
has been approached and is in a lane depar -
ture situation, the left lane line flashes yellow
(on/off). The LaneSense telltale changes
from solid yellow to flashing yellow. At this
time torque is applied to the steering wheel in
the opposite direction of the lane boundary.

For example: If approaching the left side of the
lane the steering wheel will turn to the right.
Lane Crossed (Flashing Yellow Lane Line) With Flashing Yellow Telltale

NOTE:
The LaneSense system operates with similar
behavior for a right lane departure.
4

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186STARTING AND OPERATING
CHANGING LANESENSE STATUS
The LaneSense system has settings to adjust
the intensity (Low/Medium/High) of the torque
warning and the warning zone sensitivity (Early/
Medium/Late) that you can configure through
the Uconnect system Úpage 228.
NOTE:
When enabled the system operates above
37 mph (60 km/h) and below 112 mph (180 km/h).

Use of the turn signal suppresses the warnings.

The system will not apply torque to the
steering wheel whenever a safety system
engages (Anti-Lock Brakes, Traction Control
System, Electronic Stability Control, Forward
Collision Warning, etc.).
PARKVIEW REAR BACK UP CAMERA
The ParkView Rear Back Up Camera allows
you to see an on-screen image of the rear
surroundings of your vehicle whenever the gear
selector is put into REVERSE. The image will be
displayed on the Navigation/Multimedia radio
display screen along with a caution note to
“Check Entire Surroundings” across the top of
the screen. After five seconds this note will
disappear. The ParkView Camera is located in
the center of the tailgate handle.
NOTE:
For the 3500, 4500, and 5500 Chassis Cab
vehicles, the Rear Backup Camera is shipped
loose and not installed. Please refer to the Ram
Body Builders Guide for more information.
Manual Activation Of The Rear View
Camera:

1. Press the "Controls" button located on the bottom of the Uconnect display.

2. Press the "Back Up Camera" icon to turn the Rear View Camera system on.

When the vehicle is shifted out of REVERSE (with
camera delay turned off), the rear camera mode is exited and the previous screen appears. When
the vehicle is shifted out of REVERSE (with
camera delay turned on), the camera image will
continue to be displayed for up to 10 seconds
unless the following conditions occur: The vehicle
speed exceeds 8 mph (13 km/h), the vehicle is
shifted into PARK, the vehicle’s ignition is placed
in the OFF position, or the user presses image
defeat “X” to exit out of the camera video display.

Whenever the Rear View Camera image is
activated through the "Backup Camera" button
in the Controls menu, and the vehicle speed is
greater than, or equal to, 8 mph (13 km/h), a
display timer for the image is initiated. The
image will continue to be displayed until the
display timer exceeds 10 seconds.
NOTE:
If the vehicle speed remains below 8 mph
(13 km/h), the Rear View Camera image will
be displayed continuously until deactivated
via the touchscreen button "X", the transmis -
sion is shifted into PARK, or the ignition is
placed in the OFF position.
The touchscreen button "X" to disable display
of the camera image is made available ONLY
when the vehicle is not in REVERSE.

21_DPF_OM_EN_USC_t.book Page 186

STARTING AND OPERATING187
Cargo Camera Icons — If Equipped
Backup Camera Touchscreen Button
Cargo Camera Touchscreen Button
AUX Camera Touchscreen Button
If equipped with a Cargo Camera, a touchscreen
button is made available to indicate the current
active Camera image being displayed whenever
the Rear View Camera image is displayed.
If equipped with a Cargo Camera, a touchscreen
button to switch the display to Cargo Camera
image is made available whenever the Rear
View Camera image is displayed.
A touchscreen button "X" to disable display of
the camera image is made available when the
vehicle is not in REVERSE gear. When enabled, active guidelines are overlaid on
the backup camera image to illustrate the width
of the vehicle and its projected backup path
based on the steering wheel position. The active
guidelines will show separate zones that will
help indicate the distance to the rear of the
vehicle. These settings can be adjusted within
Uconnect Settings Ú
page 228.

A dashed center line overlay indicates the center
of the vehicle to assist with parking or aligning to
a hitch/receiver. The following table shows the
approximate distances for each zone:

Zones Distance To The Rear Of The
Vehicle
Red 0 - 1 ft (0 - 30 cm)
Yellow 1 ft - 6.5 ft (30 cm - 2m)
Green 6.5 ft or greater
(2 m or greater)
WARNING!

Drivers must be careful when backing up even
when using the ParkView Rear Back Up Camera.
Always check carefully behind your vehicle, and
be sure to check for pedestrians, animals, other
vehicles, obstructions, or blind spots before
backing up. You are responsible for the safety of
your surroundings and must continue to pay
attention while backing up. Failure to do so can
result in serious injury or death.

CAUTION!
To avoid vehicle damage, ParkView should
only be used as a parking aid. The ParkView
camera is unable to view every obstacle or
object in your drive path.
To avoid vehicle damage, the vehicle must
be driven slowly when using ParkView to be
able to stop in time when an obstacle is
seen. It is recommended that the driver
look frequently over his/her shoulder when
using ParkView.
4

21_DPF_OM_EN_USC_t.book Page 187

STARTING AND OPERATING193
Activation
The Forward Facing Camera can be activated by
pressing the Forward Camera soft button on the
touchscreen.
Once activated, the camera image will remain
on as long as the vehicle speed is below 8 mph
(13 km/h) and the vehicle is not in 4WD Low.
Deactivation
The Forward Facing Camera is deactivated in
the following conditions:
The vehicle is not in 4WD Low and the vehicle
speed exceeds 8 mph (13 km/h) for
10 seconds.
The “X” button on the display is pressed.
Vehicle is shifted into PARK.
Ignition is placed in the OFF position.
NOTE:
If the vehicle is in 4WD Low, the Forward Facing
Camera image will be displayed until the “X”
button is pressed or the ignition is placed in the
OFF position. If the vehicle goes out of 4WD
Low, then the Forward Facing Camera will deac -
tivate. Trailer Reverse Guidance — If Equipped

The Trailer Reverse Guidance feature assists
the driver in backing up a trailer by providing
adjustable camera views of the trailer and
surrounding area. The cameras are mounted on
the side mirrors and the images will be displayed
side-by-side on the touchscreen. Left and right
camera images are swapped and mirrored on the
touchscreen to show the equivalent area behind
the vehicle as though the driver is using the side
mirrors.

Activation

The Trailer Reverse Guidance feature can
be activated by pressing the Trailer Reverse
Guidance button on the Backup/Cargo Camera
Display.

Deactivation
When the vehicle is shifted out of REVERSE
(with camera delay turned on), the camera
image will continue to be displayed for up to
10 seconds unless the vehicle speed exceeds
8 mph (13 km/h), the vehicle is shifted into
PARK or the ignition is placed in the OFF
position. There is a touchscreen button “X” to
disable the display of the camera image.
If Trailer Reverse Guidance is selected through
manually activated Surround View, Backup
Camera, or Cargo Camera, the following
deactivation conditions apply:
The “X” button on the display is pressed
The vehicle is shifted into PARK
The ignition is placed in the OFF position
The vehicle speed is over 8 mph (13 km/h)
for 10 seconds
WARNING!
Drivers must be careful when backing up
even when using the Surround View Camera.
Always check carefully behind your vehicle,
and be sure to check for pedestrians,
animals, other vehicles, obstructions, or blind
spots before backing up. You are responsible
for the safety of your surroundings and must
continue to pay attention while backing up.
Failure to do so can result in serious injury or
death.
4

21_DPF_OM_EN_USC_t.book Page 193

STARTING AND OPERATING195
ENGINE RUNAWAY
Diesel engine runaway is a rare condition
affecting diesel engines, where the engine
consumes its own lubrication oil and runs at
higher and higher RPM until it overspeeds to
a point where it destroys itself due to either
mechanical failure or engine seizure through
lack of lubrication.
REFUELING THE VEHICLE — GASOLINE
ENGINE
NOTE:
When the fuel nozzle “clicks” or shuts off the
fuel tank is full. NOTE:
Tighten the gas cap a quarter turn until you hear
one click. This is an indication that the cap is
properly tightened.
If the gas cap is not tightened properly, the
Malfunction Indicator Light will come on.
Be sure the gas cap is tightened every time the
vehicle is refueled.
WARNING!
In case of engine runaway due to flammable
fumes from fuel spills or turbocharger oil
leaks being sucked into the engine, do the
following to help avoid personal injury and/or
vehicle damage:
Turn the ignition switch to the OFF position.

Using a CO2 or dry chemical type fire extin
-
guisher, direct the spray from the fire extin -
guisher into the grille on the passenger side so
that the spray enters the engine air intake.

The inlet for the engine air intake is located
behind the passenger side headlamp and
receives air through the grille.
CAUTION!
Damage to the fuel system or emissions
control system could result from using an
improper fuel tank filler tube cap (fuel filler
cap). A poorly fitting cap could let impurities
into the fuel system. Also, a poorly-fitted
aftermarket cap can cause the MIL
(Malfunction Indicator Light) to illuminate
due to fuel vapors escaping from the
system.
A poorly fitting fuel filler cap may cause the
MIL to turn on.
To avoid fuel spillage and overfilling, do not
“top off” the fuel tank after filling.
WARNING!
Never have any smoking materials lit in
or near the vehicle when the gas cap is
removed or the tank is being filled.
Never add fuel to the vehicle when the
engine is running. This is in violation of
most state and federal fire regulations and
may cause the MIL to turn on.
WARNING!
A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle.
You could be burned. Always place gas
containers on the ground while filling.
4

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196STARTING AND OPERATING
LOOSE FUEL FILLER CAP MESSAGE
If the vehicle diagnostic system
determines that the fuel filler cap
is loose, improperly installed, or
damaged, a loose gASCAP indicator
will display in the instrument cluster telltale
display area Ú page 90. Tighten the fuel filler
cap properly and push the RIGHT button to turn
off the message. If the problem continues, the
message will appear the next time the vehicle is
started.
REFUELING THE VEHICLE — DIESEL ENGINE
NOTE:
When the fuel nozzle “clicks” or shuts off, the
fuel tank is full.
Tighten the fuel filler cap until you hear a
“clicking” sound. This is an indication that the
fuel filler cap is properly tightened.
Make sure that the fuel filler cap is tightened
each time the vehicle is refueled.
DIESEL EXHAUST FLUID
Your vehicle is equipped with a Selective
Catalytic Reduction (SCR) system to meet the
very stringent diesel emissions standards
required by the Environmental Protection
Agency.

The purpose of the SCR system is to reduce levels
of NOx (oxides of nitrogen emitted from engines)
that are harmful to our health and the
environment to a near-zero level. A small quantity
of Diesel Exhaust Fluid (DEF) is injected into the
exhaust upstream of a catalyst where, when
vaporized, it converts smog-forming nitrogen
oxides (NOx) into harmless nitrogen (N2) and
water vapor (H2O), two natural components of
the air we breathe. You can operate with the
comfort that your vehicle is contributing to a
cleaner, healthier world environment for this and
generations to come.

System Overview
This vehicle is equipped with a Diesel Exhaust
Fluid (DEF) injection system and a Selective
Catalytic Reduction (SCR) catalyst to meet the
emission requirements.
The DEF injection system consists of the
following components:
DEF tank
DEF pump
DEF injector
Electronically-heated DEF lines
DEF control module
NOx sensors
Temperature sensors
SCR catalyst
UQS Sensor
For system messages and warnings Úpage 90.
CAUTION!
To avoid fuel spillage and overfilling, do not
“top off” the fuel tank after filling.
WARNING!
A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle.
You could be burned. Always place gas
containers on the ground while filling.

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