wheel RAM 1500 2021 Workshop Manual

STARTING AND OPERATING199
The system will cancel the maneuver if the
vehicle speed exceeds 5 mph (7 km/h)
during active steering guidance into the
parking space. The system will provide a
warning to the driver at 3 mph (5 km/h) that
tells them to slow down. The driver is then
responsible for completing the maneuver if
the system is canceled.
If the system is canceled during the
maneuver for any reason, the driver must
take control of the vehicle.
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). The LaneSense system 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
applied), 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 force into the steering
wheel at any time.
When only a single lane marking is detected
and the driver drifts across the 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 or a 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 performing
parallel or perpendicular parking maneuvers
even when using the ParkSense Active Park
Assist system. Always check carefully behind
and in front of your vehicle, look behind and
in front of you, and be sure to check for
pedestrians, animals, other vehicles,
obstructions, and blind spots before backing
up and moving forward. 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.
CAUTION!
The ParkSense Active Park Assist system is
only a parking aid and it is unable to recog
-
nize every obstacle, including small obsta -
cles. 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 prox -
imity.
The vehicle must be driven slowly when
using the ParkSense Active Park Assist
system in order to be able to stop in time
when an obstacle is detected. It is recom -
mended that the driver looks over his/her
shoulder when using the ParkSense Active
Park Assist system.4

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STARTING AND OPERATING201
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 Sensed (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 Approached (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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202STARTING AND OPERATING
CHANGING LANESENSE STATUS
The LaneSense system has settings to adjust
the intensity of the torque warning and the
warning zone sensitivity (Early/Medium/Late)
that you can configure through the Uconnect
system Úpage 237.
NOTE:
When enabled the system operates above
37 mph (60 km/h) and below 112 mph (180 km/h).
The warnings are disabled with use of the
turn signal.
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.
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.
NOTE:
The ParkView Rear Back Up Camera has
programmable modes of operation that may be
selected through the Uconnect system
Ú page 237.
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 after shifting out of REVERSE
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 "Back Up 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.
When enabled, active guidelines are overlaid on
the image to illustrate the width of the vehicle
and its projected back up path based on the
steering wheel position. A dashed center line
overlay indicates the center of the vehicle to

21_DT_OM_EN_USC_t.book Page 202

STARTING AND OPERATING205
If the camera delay is turned off, the camera
image will close and display the previous screen
after shifting out of REVERSE.
If active guidelines are enabled, the lines are
overlaid on the image in the Rear View to
illustrate the width of the vehicle. The view will
also include the side view mirrors and its
projected back up path based on the steering
wheel position.
There are different colored zones to indicate the
distance to the rear of the vehicle. Refer to the
chart below:
Modes Of Operation
Standard Rear View can be manually activated
by selecting “Back Up Camera” through the
Controls menu within the Uconnect system. Top View
The Top View will show in the Uconnect system
with Rear View and Front View in a split screen
display. There are integrated ParkSense arcs in
the image at the front and rear of the vehicle.
The arcs will change color from yellow to red
corresponding the distance zones to the
oncoming object.

Surround View Camera View

NOTE:
Front tires will be seen in the image when the
tires are turned.
Due to wide angle cameras in the mirrors, the
image will appear distorted.
The Top View will show which doors are open.
Open front doors will block the outside
image.
Rear View This is the default view of the system
in REVERSE and is always paired with
the Top View of the vehicle with
optional active guidelines for the
projected path when enabled.
Rear Cross Path View Pressing the Rear Cross Path soft key
will give the driver a wider angle view
of the rear camera system. The Top
View will be disabled when this is
selected.
Front View The Front View will show you what is
immediately in front of the vehicle
and is always paired with the Top View
of the vehicle.
Zone
Distance To The Rear
Of The Vehicle
Red 0 - 1 ft (0 - 30 cm)
Yellow 1 ft - 6.5 ft
(30 cm - 2 m)
Green 6.5 ft or greater
(2 m or greater)
4

21_DT_OM_EN_USC_t.book Page 205

STARTING AND OPERATING213
3. Stop filling the DEF tank immediately when
any of the following happen: DEF stops
flowing from the fill bottle into the DEF tank,
DEF splashes out the filler neck, or a DEF
pump nozzle automatically shuts off.
4. Reinstall cap onto DEF tank.
Filling The Def Tank In Cold Climates
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. Do not overfill the DEF
tank. If the tank is overfilled and freezes, it
could be damaged.
Extra care should be taken when filling with
portable containers to avoid overfilling. Keep an
eye on the DEF gauge in your instrument
cluster. You may safely add a maximum of
2 gallons (7.6 Liters) when your DEF gauge is
reading at the half mark.
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 Gross
Axle Weight Rating (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.
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 contam -
inate 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 is has only
been used for adding DEF. Mopar provides
an attachable nozzle with its DEF for this
purpose.
CAUTION! (Continued)
4

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STARTING AND OPERATING215
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the
weight of all cargo, consumables and
equipment (permanent or temporary) loaded in
or on the trailer in its “loaded and ready for
operation” condition.
The recommended way to measure GTW is to
put your fully loaded trailer on a vehicle scale.
The entire weight of the trailer must be
supported by the scale.
Gross Combination Weight Rating (GCWR)
The GCWR is the total allowable weight of your
vehicle and trailer when weighed in
combination.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum capacity of the front
and rear axles. Distribute the load over the front and rear axles evenly. Make sure that you do
not exceed either front or rear GAWR
Ú
page 213.
Tongue Weight (TW)
The TW is the downward force exerted on the
hitch ball by the trailer. You must consider this
as part of the load on your vehicle.
Trailer Frontal Area
The frontal area is the maximum height
multiplied by the maximum width of the front of
a trailer.
Trailer Sway Control (TSC)
The TSC can be a mechanical telescoping link
that can be installed between the hitch receiver
and the trailer tongue that typically provides
adjustable friction associated with the
telescoping motion to dampen any unwanted
trailer swaying motions while traveling. If equipped, the electronic TSC recognizes a
swaying trailer and automatically applies
individual wheel brakes and/or reduces engine
power to attempt to eliminate the trailer sway.
Weight-Carrying Hitch
A weight-carrying hitch supports the trailer
tongue weight, just as if it were luggage located
at a hitch ball or some other connecting point of
the vehicle. These kinds of hitches are
commonly used to tow small and medium sized
trailers.
Weight-Distributing Hitch
A weight-distributing system works by applying
leverage through spring (load) bars. They are
typically used for heavier loads to distribute
trailer tongue weight to the tow vehicle's front
axle and the trailer axle(s). When used in
accordance with the manufacturer's directions,
it provides for a more level ride, offering more
consistent steering and brake control, thereby
enhancing towing safety. The addition of a
friction/hydraulic sway control also dampens
sway caused by traffic and crosswinds and
contributes positively to tow vehicle and trailer
stability. Trailer sway control and a weight
distributing (load equalizing) hitch are
WARNING!

If the gross trailer weight is 5,000 lbs (2,267 kg)
or more, it is recommended to use a weight-dis
-
tributing hitch to ensure stable handling of your
vehicle. If you use a standard weight-carrying
hitch, you could lose control of your vehicle and
cause a collision.

WARNING!
It is important that you do not exceed the
maximum front or rear GAWR. A dangerous
driving condition can result if either rating is
exceeded. You could lose control of the vehi -
cle and have a collision.
4

21_DT_OM_EN_USC_t.book Page 215

STARTING AND OPERATING217
4. Measure the height of the top of the front
wheel opening on the fender to ground; this
is height H1.

Measuring Height (H)

5. Attach the trailer to the vehicle without the weight distribution bars connected. 6. Measure the height of the top of the front
wheel opening on the fender to ground; this
is height H2.
7. Install and adjust the tension in the weight distributing bars per FCA recommendations
so that the height of the front fender is
approximately (H2-H1)/3+H1 (about 1/3
the difference between H2 and H1 above
normal ride height [H1]).
8. Use the instrument cluster or touchscreen radio settings and switch off tire jack mode.
Make sure the truck returns to normal ride
height. Perform a visual inspection of the
trailer and weight distributing hitch to
confirm FCA recommendations have been
met. 9. The truck can now be driven.
NOTE:
For all towing conditions, we recommend towing
with tow haul mode engaged.
Measurement
Example Example Height
(mm)
H1 925
H2 946
H2-H1 21
(H2-H1)/3 7
(H2-H1)/3 + H1 932
4

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220STARTING AND OPERATING
Once calibrated the driver can shift to PARK,
push the button on top of the TRSC knob and
activate the feature. The knob is then turned
either to the left or right depending on what
direction the driver wants the trailer to go.

Trailer Reverse Steering Control Knob

NOTE:
When steering the trailer with the knob, remove
hands from the steering wheel.
There is also a holdover state where if during an
active trailer steering maneuver, the driver
shifts to NEURAL or DRIVE to straighten the
trailer, the driver may shift back to REVERSE
and not need to reactivate the feature. However
the feature will cancel after 10 seconds or when
the vehicle speed reaches 8 mph (12 km/h). Instrument Cluster Messages:
“Drive forward to calibrate trailer” will display
when a trailer is not calibrated and the
vehicle is at standstill while the button is
pushed.
“Calibrating trailer” will display when the
trailer is not calibrated and the vehicle is
moving while the button is pushed.
“To activate trailer steering shift to P” will
display when the trailer is calibrated success
-
fully and the vehicle is not in PARK.
“Trailer Steering ready, shift to reverse” will
display when the button is pushed, trailer is
calibrated and the vehicle is in PARK.
“Trailer steering active” will display after the
driver shifts to REVERSE and indicates the
feature is active.
“Trailer Steering Unavailable” will display if
there is a fault in the system preventing acti -
vation, the driver’s door is open, the driver’s
seat belt is unbuckled, or the tailgate is open. Other reasons the feature may cancel:
The driver overrides steering by placing
hands on the steering wheel.
Trailer tracking is lost.
If the trailer angle becomes excessive, the
brakes apply bringing the vehicle to a stop
and then applying the parking brake.
Trailer steering button is pushed while active.
Vehicle speed goes over 8 mph (12 km/h).
Driver door is open and seat belt is
unbuckled.
Transmission shifted to PARK.
Trailer Memory
The trailer steering system can remember up to
five trailers, so recalibration will not be
necessary.
To store a trailer to memory, calibrate the trailer
and then allow the vehicle to be off for a period
of time. The next time the vehicle is started,
place the vehicle in DRIVE and drive a short
distance. The trailer system can then be
activated.

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222STARTING AND OPERATING
Towing Requirements — Tires
Do not attempt to tow a trailer while using a
compact spare tire.
Do not drive more than 50 mph (80 km/h)
when towing while using a full size spare tire.
Proper tire inflation pressures are essential
to the safe and satisfactory operation of your
vehicle.
Check the trailer tires for proper tire inflation
pressures before trailer usage.
Check for signs of tire wear or visible tire
damage before towing a trailer.
Replacing tires with a higher load carrying
capacity will not increase the vehicle's GVWR
and GAWR limits.
For further information Ú page 443.
Towing Requirements — Trailer Brakes
Do not interconnect the hydraulic brake
system or vacuum system of your vehicle
with that of the trailer.
An electronically actuated trailer brake
controller is required when towing a trailer
with electronically actuated brakes. When
towing a trailer equipped with a hydraulic
surge actuated brake system, an electronic
brake controller is not required.
Trailer brakes are recommended for trailers
over 1,000 lbs (453 kg) and required for
trailers in excess of 2,000 lbs (907 kg).
Vehicles with trailers should not be parked
on a grade. When parking, apply the
parking brake on the tow vehicle. Put the
tow vehicle transmission in PARK. For
four-wheel drive vehicles, make sure the
transfer case is not in NEUTRAL. Always,
block or "chock" the trailer wheels.
GCWR must not be exceeded.
Total weight must be distributed between
the tow vehicle and the trailer such that the
following four ratings are not exceeded :
GVWR
GTW
GAWR
Tongue weight rating for the trailer
hitch utilized.
WARNING! (Continued)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.
21_DT_OM_EN_USC_t.book Page 222

224STARTING AND OPERATING
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 your 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 is plugged in with electric or EOH brakes, 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.
*The suggested selection may change depending on the customer preferences for braking performance. Condition of the trailer brakes, driving and road state may also affect the
selection.
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 *Above 10,000 lbs *Under 10,000 lbs *Above 10,000 lbs

21_DT_OM_EN_USC_t.book Page 224