2021 RAM 1500 ECO mode

STARTING AND OPERATING175
FUEL SAVER TECHNOLOGY 5.7L ENGINES
ONLY — IF EQUIPPED
This feature offers improved fuel economy by
shutting off four of the engine's eight cylinders
during light load and cruise conditions. The
system is automatic with no driver inputs or
additional driving skills required.
NOTE:
This system may take some time to return to full
functionality after a battery disconnect.
STOP/START SYSTEM — IF EQUIPPED
The Stop/Start function is developed to save
fuel and reduce emissions. The system will stop
the engine automatically during a vehicle stop if
the required conditions are met. Releasing the
brake pedal or shifting out of DRIVE will
automatically restart the engine.
Vehicles equipped with eTorque contain a
heavy duty motor generator and an additional
hybrid electric battery to store energy from
vehicle deceleration for use on engine startup
after a stop as well as providing launch torque
assist.
AUTOSTOP MODE

The Stop/Start feature is enabled after every
normal customer engine start. It will remain in
STOP/START NOT READY until you drive
forward with a vehicle speed greater than
2 mph (3 km/h). At that time, the system will
go into STOP/START READY.

To Activate The Autostop Mode, The Following
Must Occur:

1. The system must be in STOP/START READY
state. A STOP/START READY message will
be displayed in the instrument cluster
within the Stop/Start section
Ú
page 114.

2. The vehicle must be completely stopped.
3. The transmission gear selector must be in DRIVE and the brake pedal pressed.
The engine will shut down, the tachometer will
move to the zero position and the stop/start
telltale will illuminate indicating you are in an
Autostop. While in an Autostop, the Climate
Controls system may automatically adjust
airflow to maintain cabin comfort. Customer
settings will be maintained upon return to an
engine running condition.
POSSIBLE REASONS THE ENGINE DOES
N
OT AUTOSTOP
Prior to engine shut down, the system will check
many safety and comfort conditions to see if
they are fulfilled. In following situations, the
engine will not Autostop:
Driver’s seat belt is not buckled
Driver’s door is not closed
The vehicle is on a steep grade
Cabin heating or cooling is in process and an
acceptable cabin temperature has not been
achieved
HVAC is set to full defrost mode at a high
blower speed
Engine has not reached normal operating
temperature
Engine temperature too high
The battery is charging
The transmission is not in DRIVE
Hood is open
Transfer case is in 4WD LOW
4

21_DT_OM_EN_USC_t.book Page 175

178STARTING AND OPERATING
second time. The cruise indicator light will turn
off. The system should be turned off when not in
use.
To Set A Desired Speed
Turn the Cruise Control on.
When the vehicle has reached the desired
speed, push the SET (+) or SET (-) button and
release. Release the accelerator and the
vehicle will operate at the selected speed.
NOTE:
The vehicle should be traveling at a steady
speed and on level ground before pushing the
SET (+) or SET (-) button.
To Vary The Speed Setting
To Increase Or Decrease The Set Speed
When the Cruise Control is set, you can increase
speed by pushing the SET (+) button, or
decrease speed by pushing the SET (-) button.
U.S. Speed (mph)
Pushing the SET (+), or SET (-) button once
will result in a 1 mph speed adjustment. Each
subsequent tap of the button results in an
adjustment of 1 mph.
If the button is continually pushed, the set
speed will continue to adjust until the button
is released, then the new set speed will be
established.
Metric Speed (km/h)
Pushing the SET (+), or SET (-) button once
will result in a 1 km/h speed adjustment.
Each subsequent tap of the button results in
an adjustment of 1 km/h.
If the button is continually pushed, the set
speed will continue to adjust until the button
is released, then the new set speed will be
established.
To Accelerate For Passing
While the Cruise Control is set, press the
accelerator to pass as you would normally.
When the pedal is released, the vehicle will
return to the set speed.
Using Cruise Control On Hills
The transmission may downshift on hills to
maintain the vehicle set speed.
NOTE:
The Cruise Control system maintains speed up
and down hills. A slight speed change on
moderate hills is normal.
On steep hills, a greater speed loss or gain may
occur so it may be preferable to drive without
Cruise Control.
WARNING!
Leaving the Cruise Control system on when
not in use is dangerous. You could
accidentally set the system or cause it to go
faster than you want. You could lose control
and have an accident. Always ensure the
system is off when you are not using it.
WARNING!
Cruise Control can be dangerous where the
system cannot maintain a constant speed.
Your vehicle could go too fast for the
conditions, and you could lose control and
have an accident. Do not use Cruise Control
in heavy traffic or on roads that are winding,
icy, snow-covered or slippery.

21_DT_OM_EN_USC_t.book Page 178

STARTING AND OPERATING181
Adaptive Cruise Control Ready
When ACC is activated, but the vehicle speed
setting has not been selected, the display will
read “Adaptive Cruise Control Ready.”
Adaptive Cruise Control Set
When the SET (+) or the SET (-) button is
pushed, the display will read “ACC SET.”
When ACC is set, the set speed will show in the
instrument cluster display.
The ACC screen may display once again if any of
the following ACC activity occurs:
System Cancel
Driver Override
System Off
ACC Proximity Warning
ACC Unavailable Warning
The instrument cluster display will return to the
last display selected after five seconds of no
ACC display activity.
Activating Adaptive Cruise Control (ACC)
The minimum set speed for the ACC system is
20 mph (32 km/h).
When the system is turned on and in the ready
state, the instrument cluster display will read
“ACC Ready.”
When the system is off, the instrument cluster
display will read “Adaptive Cruise Control (ACC)
Off.”
NOTE:
You cannot engage ACC under the following
conditions:
When in 4WD Low
When the brakes are applied
When the parking brake is applied
When the automatic transmission is in PARK,
REVERSE or NEUTRAL
When the vehicle speed is below the
minimum speed range
When the brakes are overheated
When the driver’s door is open at low speeds
When the driver’s seat belt is unbuckled at
low speeds
When there is a stationary vehicle in front of
your vehicle in close proximity
ESC Full Off mode is active
To Activate/Deactivate
Push and release the Adaptive Cruise Control
(ACC) on/off button. The ACC menu in the
instrument cluster displays “ACC Ready.”
To turn the system off, push and release the
Adaptive Cruise Control (ACC) on/off button
again. At this time, the system will turn off and
the instrument cluster display will show
“Adaptive Cruise Control (ACC) Off.”
WARNING!
Leaving the Adaptive Cruise Control (ACC)
system on when not in use is dangerous. You
could accidentally set the system or cause it
to go faster than you want. You could lose
control and have a collision. Always leave the
system off when you are not using it.
4

21_DT_OM_EN_USC_t.book Page 181

STARTING AND OPERATING183
To Turn Off
The system will turn off and clear the set speed
in memory if:
The Adaptive Cruise Control (ACC) on/off
button is pushed
The Fixed Speed Cruise Control on/off button
is pushed
The ignition is placed in the OFF position
4WD Low is engaged
To Resume
If there is a set speed in memory, push the RES
(resume) button and then remove your foot
from the accelerator pedal. The instrument
cluster display will display the last set speed.
Resume can be used at any speed above
20 mph (32 km/h) when only Fixed Speed
Cruise Control is being used.
Resume can be used at any speed above 0 mph
(0 km/h) when ACC is active. NOTE:
While in ACC mode when the vehicle comes
to a complete stop longer than two seconds,
the system will cancel. The driver will have to
apply the brakes to keep the vehicle at a
standstill.
ACC cannot be resumed if there is a
stationary vehicle in front of your vehicle in
close proximity.
To Vary The Speed Setting
To Increase Or Decrease The Set Speed
After setting a speed, you can increase the set
speed by pushing the SET
(+) button, or
decrease speed by pushing the SET (-) button. U.S. Speed (mph)
Pushing the SET
(+), or SET (-) button once
will result in a 1 mph speed adjustment. Each
subsequent tap of the button results in an
adjustment of 1 mph.
If the button is continually pushed, the set
speed will continue to adjust in 5 mph incre -
ments until the button is released. The new
set speed is reflected in the instrument
cluster display.
Metric Speed (km/h)
Pushing the SET (+), or SET (-) button once
will result in a 1 km/h speed adjustment.
Each subsequent tap of the button results in
an adjustment of 1 km/h.
If the button is continually pushed, the set
speed will continue to adjust in 10 km/h
increments until the button is released. The
new set speed is reflected in the instrument
cluster display.
NOTE:
When you override and push the SET (+) button
or SET (-) buttons, the new set speed will be the
current speed of the vehicle.
WARNING!
The Resume function should only be used if
traffic and road conditions permit. Resuming
a set speed that is too high or too low for
prevailing traffic and road conditions could
cause the vehicle to accelerate or decelerate
too sharply for safe operation. Failure to
follow these warnings can result in a collision
and death or serious personal injury.
4

21_DT_OM_EN_USC_t.book Page 183

184STARTING AND OPERATING
When An ACC Distance Is Also Set:
When you use the SET (-) button to decel -
erate, if the engine’s braking power does not
slow the vehicle sufficiently to reach the set
speed, the brake system will automatically
slow the vehicle.
The ACC system decelerates the vehicle to a
full stop when following the vehicle in front. If
your vehicle follows the vehicle in front to a
standstill, after two seconds the driver will
either have to push the RES (resume) button,
or apply the accelerator pedal to reengage
the ACC to the existing set speed.
The ACC system maintains set speed when
driving uphill and downhill. However, a slight
speed change on moderate hills is normal. In
addition, downshifting may occur while
climbing uphill or descending downhill. This
is normal operation and necessary to main -
tain set speed. When driving uphill and down -
hill, the ACC system will cancel if the braking
temperature exceeds normal range (over -
heated).
Setting The Following Distance In ACC
The specified following distance for Adaptive
Cruise Control (ACC) can be set by varying the
distance setting between four bars (longest),
three bars (long), two bars (medium) and one
bar (short). Using this distance setting and the
vehicle speed, ACC calculates and sets the
distance to the vehicle ahead. This distance
setting displays in the instrument cluster
display.

Distance Settings
To increase the distance setting, push the
Distance Increase button and release. Each
time the button is pushed, the distance setting
increases by one bar (longer).
To decrease the distance setting, push the
Distance Decrease button and release. Each
time the button is pushed, the distance setting
decreases by one bar (shorter).
If there is no vehicle ahead, the vehicle will
maintain the set speed. If a slower moving
vehicle is detected in the same lane, the
instrument cluster displays the ACC Set With
Target Detected Indicator Light, and the system
adjusts vehicle speed automatically to maintain
the distance setting, regardless of the set
speed.
The vehicle will then maintain the set distance
until:
The vehicle ahead accelerates to a speed
above the set speed.
The vehicle ahead moves out of your lane or
view of the sensor.
The distance setting is changed.
The system disengages.
1 — Longest Distance Setting (Four Bars)
2 — Long Distance Setting (Three Bars)
3 — Medium Distance Setting (Two Bars)
4 — Short Distance Setting (One Bar)

21_DT_OM_EN_USC_t.book Page 184

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

206STARTING AND OPERATING
Front Cross Path View
Pressing the Front Cross Path soft key
will give the driver a wider angle view
of the front camera system. The Top
View will be disabled when this is
selected.
Rear View Camera Pressing the Back Up Camera soft key
will provide a full screen rear view with
Zoom View.
NOTE:
If the Rear View Camera view was selected
through the Surround View Camera menu,
exiting out of the Rear View screen will return to
the Surround View menu. If the Back Up Camera
was manually activated through the Controls
menu of the Uconnect system, exiting out of the
display screen will return to the Controls menu.
Zoom View
When the Rear View Camera image is being
displayed, and the vehicle speed is below
8 mph (13 km/h) while in any gear, Zoom View
is available. By pressing the “magnifying 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 Back Up 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 Back Up
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 and speeds are at or above 8 mph
(13 km/h).
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 grey.
While in Zoom View, the guidelines will not be
visible. Deactivation
The system is deactivated in the following
conditions if it was activated
automatically:
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 touchscreen button “X” to disable
the display of the camera image.
When the vehicle is shifted out of REVERSE
(with camera delay turned off), the Surround
View Camera mode is exited and the last
known screen appears again.
The system is deactivated in the following
conditions if it was activated manually from the
Uconnect controls menu via Surround View
button or Back Up Camera button:
The “X” button on the display is pressed
Vehicle is shifted into PARK
Ignition is placed in the OFF position
Vehicle speed is over 8 mph (13 km/h) for
10 seconds

21_DT_OM_EN_USC_t.book Page 206

216STARTING AND OPERATING
recommended for heavier Tongue Weights (TW)
and may be required depending on vehicle and
trailer configuration/loading to comply with
GAWR requirements.

Without Weight-Distributing Hitch (Incorrect) With Weight-Distributing Hitch (Correct)
Improper Adjustment Of Weight-Distributing Hitch (Incorrect)
Recommended Distribution Hitch Adjustment
Towing With Air Suspension — If Equipped

1. Verify that the vehicle is at the normal ride
height.

NOTE:
The vehicle must remain in the engine run posi -
tion with all doors closed while attaching a
trailer for proper leveling of the air suspension
system.
2. Position the truck to be ready to connect to the trailer (do not connect the trailer).
3. Enable tire jack mode through the instrument cluster or touchscreen radio
settings. Tire jack mode will be canceled
and procedure must be restarted if the
vehicle is driven at speeds above 5mph
(8 km/h).
WARNING!
An improperly adjusted weight distributing
hitch system may reduce handling, stability
and braking performance and could result
in a collision.
Weight distributing systems may not be
compatible with surge brake couplers.
Consult with your hitch and trailer manufac -
turer or a reputable Recreational Vehicle
dealer for additional information.

21_DT_OM_EN_USC_t.book Page 216