warning Ram 4500 Chassis Cab 2020 Owner's Manual

STARTING AND OPERATING255
When you move the gear selector to the
REVERSE position and Front or Rear Park -
Sense is turned off, the instrument cluster
display will show "Off" on the vehicle graphic
arcs. This vehicle graphic will be displayed for
as long as the vehicle is in REVERSE.
ParkSense, when on, will reduce the volume
of the radio when it is sounding a tone.
Clean the ParkSense sensors regularly,
taking care not to scratch or damage them.
The sensors must not be covered with ice,
snow, slush, mud, dirt or debris. Failure to do
so can result in the system not working prop -
erly. The ParkSense system might not detect
an obstacle behind or in front of the fascia/
bumper, or it could provide a false indication
that an obstacle is behind or in front of the
fascia/bumper.
Ensure the ParkSense system is off if objects
such as bicycle carriers, trailer hitches, etc.,
are placed on the fascia/bumper while
driving the vehicle. Failure to do so can result
in the system misinterpreting a close
obstacle as a sensor problem, causing the
“Wipe Front/Rear Sensors” message or
providing false alerts.
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 is 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 loudspeaker 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.
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256STARTING AND OPERATING
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 posi -
tion within the lane boundaries.
When both lane markings are detected and the
driver unintentionally drifts out of the lane while
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
to prompt the driver to remain within the lane
boundaries. The LaneSense system will also
provide a visual warning through 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 unintentionally drifts across that
lane marking (no turn signal applied), the Lane
-
Sense 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 provides
an audible and visual warning to the driver
when the driver’s hands are not detected on the
steering wheel. The system will cancel if the
driver does not return their hands to the wheel.
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 “Lane
-
Sense On” message is shown in the instrument
cluster display.

Lane Sense On Message

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.

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STARTING AND OPERATING257
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 tell -
tale 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.
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

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258STARTING AND OPERATING
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.
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 screen. Refer to
“Uconnect Settings” in “Multimedia” for further
information. 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 warn -
ings.
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
Your vehicle may be equipped with the
ParkView Rear Back Up Camera that allows you
to see a image of the rear surroundings of your
vehicle whenever the gear selector is put into
REVERSE or whenever it is initiated through the
"Backup Camera" button in the "Controls"
menu. Whenever the gear selector is put into
REVERSE, the image will be displayed in the
rearview mirror display (if equipped) or
Uconnect screen (if equipped). If the image is
displayed in the Uconnect screen, a caution
note to “check entire surroundings” will display
across the top of the screen. After five seconds
this note will disappear.

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260STARTING AND OPERATING
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:
NOTE:
If snow, ice, mud, or any foreign substance
builds up on the camera lens, clean the lens,
rinse with water, and dry with a soft cloth. Do
not cover the lens.
Zoom ViewWhen the Rear View Camera image is
being displayed, and the vehicle
speed is below 8 mph (13 km/h)
while in any gear selector position,
Zoom View is available. By pressing the “magni -
fying glass” icon in the upper left of the display
screen, the image will zoom in to four times the
standard view. Pressing the icon a second time will return the view to the standard Backup
Camera display.
When Zoom View is selected while the vehicle is
in REVERSE, then shifted to DRIVE, the camera
delay view will display the standard Backup
Camera view. If the vehicle is then returned to
REVERSE gear from DRIVE, the Zoom View
selection will automatically resume.
Shifting to NEUTRAL from any gear will maintain
the selected view (Zoom or Standard) as long as
the vehicle is below 8 mph (13 km/h).
If the vehicle is in PARK, Zoom View is available
until the gear selector is placed in DRIVE or
REVERSE.
NOTE:
If the vehicle is in DRIVE, NEUTRAL, or
REVERSE, and speed is greater than or equal
to 8 mph (13 km/h), Zoom View is unavail
-
able and the icon will appear gray.
While in Zoom View, the guidelines will not be
visible.
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.

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266STARTING AND OPERATING
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 equiv -
alent 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 Guid -
ance 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 after shifting out of REVERSE
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 touch screen 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 below deactiva
-
tion conditions are applied:
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
NOTE:
If the vehicle is not equipped with a Pickup Box:
The bottom wedge of the Top view will be
displayed in black.
The Rear Cross Path soft button will be
greyed out.
The guide lines will not be overlaid on Top
view/Rear view and Full Screen of Backup
Camera view.
Black video will be displayed for the right side
of the Top and Rear view, and full screen of
the Backup Camera view when the Rear View
Camera is not connected.
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.
CAUTION!
To avoid vehicle damage, Surround View
should only be used as a parking aid. The
Surround View 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 Surround View
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 Surround View.

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STARTING AND OPERATING267
AUX Camera — If Equipped
Your vehicle may be equipped with one or two
AUX Cameras, which display a rearview image
from the trailer on the touchscreen.
Activation
The AUX Camera is activated by first pressing
the Backup Camera, Cargo Camera (if
equipped), or Surround View Camera (if
equipped) button on the touchscreen, followed
by the AUX button located in the upper left
corner of the rearview display. The AUX camera
can also be activated when the vehicle is in
REVERSE by pressing the AUX button.
If equipped with two AUX Cameras, you can
switch between each camera by then pressing
the AUX1 or AUX2 buttons on the Trailer Camera
display.
AUX1 Camera Button
AUX2 Camera Button Deactivation
The AUX Camera is deactivated by pressing the
“X” in the upper right corner of the touchscreen.
This will return the display back to the previ
-
ously displayed screen.
NOTE:
If the AUX button is pressed and no AUX
Camera is connected, the touchscreen will
display a blue screen along with the message
“Camera System Unavailable.” The screen
can be exited out by pressing the “X” in the
upper right hand corner. This will return the
display back to the previously displayed
screen.
Zoom View is not available with the AUX
Camera feature.
The display will always default to the Trailer
Camera display (AUX 1).
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.
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.
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268STARTING AND OPERATING
REFUELING THE VEHICLE — GAS ENGINENOTE:
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.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system deter -
mines that the fuel filler cap is loose,
improperly installed, or damaged, a
loose gASCAP indicator will display in
the instrument cluster telltale display area.
Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” for
further information. 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.
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.

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STARTING AND OPERATING269
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.
Fuel Filler Cap
If the fuel filler cap is lost or damaged, be sure
the replacement cap is for use with this vehicle.
Avoid Using Contaminated Fuel
Fuel that is contaminated by water or dirt can
cause severe damage to the engine fuel
system. Proper maintenance of the engine fuel
filter and fuel tank is essential. Refer to “Dealer
Service” in “Servicing And Maintenance” for
further information.
Bulk Fuel Storage — Diesel Fuel
If you store quantities of fuel, good mainte -
nance of the stored fuel is also essential. Fuel
contaminated with water will promote the
growth of “microbes.” These microbes form
“slime” that will clog the fuel filtration system
and lines. Drain condensation from the supply
tank and change the line filter on a regular
basis.
NOTE:
When a diesel engine is allowed to run out of
fuel, air is pulled into the fuel system.
If the vehicle will not start, refer to “Priming If
The Engine Has Run Out Of Fuel” in “Servicing
And Maintenance” for further information.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.
WARNING!
Never have any smoking materials lit in or
near the vehicle when the fuel filler cap is
removed or the tank filled.
Never add fuel to the vehicle when the
engine is running.
CAUTION!
Damage to the fuel system or emission
control system could result from using an
improper fuel tank filler tube cap. A poorly
fitting cap could let impurities into the fuel
system.
WARNING!
Do not open the high pressure fuel system
with the engine running. Engine operation
causes high fuel pressure. High pressure fuel
spray can cause serious injury or death.
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270STARTING AND OPERATING
Diesel Exhaust Fluid
Your vehicle is equipped with a Selective Cata-
lytic 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 quan -
tity 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
Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” for
system messages and warnings.
NOTE:
Your vehicle is equipped with a DEF injection
system. You may occasionally hear an
audible clicking noise. This is normal opera -
tion.
The DEF pump will run for a period of time
after engine shutdown to purge the DEF
system. This is normal operation.
Diesel Exhaust Fluid Storage
Diesel Exhaust Fluid (DEF) is considered a very
stable product with a long shelf life. If DEF is
kept in temperatures between 10° and 90°F
(-12° and 32°C), it will last a minimum of one
year.
DEF is subject to freezing at the lowest tempera-
tures. For example, DEF may freeze at tempera-
tures at or below 12°F (-11°C). The system has
been designed to operate in this environment.
NOTE:
When working with DEF, it is important to know
that:
Any containers or parts that come into
contact with DEF must be DEF compatible
(plastic or stainless steel). Copper, brass,
aluminum, iron or non-stainless steel should
be avoided as they are subject to corrosion
by DEF.
If DEF is spilled, it should be wiped up
completely.

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