ECO mode RAM 1500 2021 Owner's Manual

80GETTING TO KNOW YOUR VEHICLE
WIND BUFFETING
Wind buffeting can be described as the
perception of pressure on the ears or a
helicopter-type sound in the ears. Your vehicle
may exhibit wind buffeting with the windows
down, or the sunroof (if equipped) in certain
open or partially open positions. This is a normal
occurrence and can be minimized. If the
buffeting occurs with the rear windows open,
open the front and rear windows together to
minimize the buffeting. If the buffeting occurs
with the sunroof open, adjust the sunroof
opening to minimize the buffeting or open any
window.
POWER SUNROOF — IF EQUIPPED
SINGLE PANE POWER SUNROOF — IF
E
QUIPPED
The power sunroof switches are located on the
overhead console between the courtesy/
reading lights.

Power Sunroof Switches

1 — Opening/Closing Sunroof
2 — Venting Sunroof
WARNING!
Never leave children unattended in a
vehicle, or with access to an unlocked
vehicle. Never leave the key fob in or near
the vehicle, or in a location accessible to
children. Do not leave the ignition of a
vehicle equipped with Keyless Enter-N-Go
in the ACC or ON/RUN mode. Occupants,
particularly unattended children, can
become entrapped by the power sunroof
while operating the power sunroof switch.
Such entrapment may result in serious
injury or death.
In a collision, there is a greater risk of being
thrown from a vehicle with an open sunroof.
You could also be seriously injured or killed.
Always fasten your seat belt properly and
make sure all passengers are also properly
secured.
Do not allow small children to operate the
sunroof. Never allow your fingers, other
body parts, or any object, to project through
the sunroof opening. Injury may result.

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GETTING TO KNOW YOUR VEHICLE81
Opening And Closing The Sunroof
Express Open/Close
Push the switch rearward and release it within
one-half second and the sunroof will open
automatically from any position. The sunroof
will open fully and stop automatically.
Push the switch forward and release it within
one-half second and the sunroof will close
automatically from any position. The sunroof
will close fully and stop automatically.
During Express Open or Express Close
operation, any other movement of the sunroof
switch will stop the sunroof.
Manual Open/Close
To open the sunroof, push and hold the switch
rearward to full open.
To close the sunroof, push and hold the switch
in the forward position.
Any release of the switch during open or close
operation will stop the sunroof movement. The
sunroof will remain in a partially opened
position until the switch is operated and held
again. NOTE:
If the sunshade is in the closed position when
Express or Manual Open operation is initiated
the sunshade will automatically open to the half
open position prior to the sunroof opening.
Pinch Protect Feature
This feature will detect an obstruction in the
opening of the sunroof during Express Close
operation. If an obstruction in the path of the
sunroof is detected, the sunroof will
automatically retract. Remove the obstruction if
this occurs.
NOTE:
If three consecutive sunroof close attempts
result in Pinch Protect reversals, Pinch Protect
will disable and the sunroof must be closed in
Manual Mode.
Venting Sunroof — Express
Push and release the Vent button within one
half second and the sunroof will open to the
vent position. This is called “Express Vent”, and
it will occur regardless of sunroof position.
During Express Vent operation, any other
actuation of the switch will stop the sunroof.
Sunshade Operation
The sunshade can be opened manually.
However, the sunshade will open automatically
as the sunroof opens.
NOTE:
The sunshade cannot be closed if the sunroof is
open.
Ignition Off Operation
The power sunroof switch will remain active for
up to approximately 10 minutes after the
ignition switch is placed in the OFF position.
Opening either front door will cancel this
feature.
NOTE:
Ignition Off time is programmable through the
Uconnect system Ú
page 237.
Sunroof Maintenance
Use only a non-abrasive cleaner and a soft cloth
to clean the glass panel. Periodically check for
and clear out any debris that may have
collected in the tracks.
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82GETTING TO KNOW YOUR VEHICLE
DUAL PANE POWER SUNROOF — IF
E
QUIPPED
The power sunroof switches are located on the
overhead console between the courtesy/
reading lights.

Power Sunroof Switches

Opening And Closing The Sunroof
The sunroof has two programmed automatic
stops for the sunroof open position; a comfort
stop position and a full open position. The
comfort stop position has been optimized to
minimize wind buffeting.
Express Open/Close
Push the switch rearward and release it within
one-half second and the sunroof will open
automatically from any position. The sunroof
will open fully and stop automatically.
Push the switch forward and release it within
one-half second and the sunroof will close
automatically from any position. The sunroof
will close fully and stop automatically.
During Express Open or Express Close
operation, any other movement of the sunroof
switch will stop the sunroof.
1 — Opening/Closing Sunroof
2 — Venting Sunroof
3 — Opening/Closing Sunshade
WARNING!
Never leave children unattended in a
vehicle, or with access to an unlocked
vehicle. Never leave the key fob in or near
the vehicle, or in a location accessible to
children. Do not leave the ignition of a
vehicle equipped with Keyless Enter-N-Go
in the ACC or ON/RUN mode. Occupants,
particularly unattended children, can
become entrapped by the power sunroof
while operating the power sunroof switch.
Such entrapment may result in serious
injury or death.
In a collision, there is a greater risk of being
thrown from a vehicle with an open sunroof.
You could also be seriously injured or killed.
Always fasten your seat belt properly and
make sure all passengers are also properly
secured.
Do not allow small children to operate the
sunroof. Never allow your fingers, other
body parts, or any object, to project through
the sunroof opening. Injury may result.

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GETTING TO KNOW YOUR VEHICLE83
Manual Open/Close
To open the sunroof, push and hold the switch
rearward to full open.
To close the sunroof, push and hold the switch
in the forward position.
Any release of the switch during open or close
operation will stop the sunroof movement. The
sunroof will remain in a partially opened
position until the switch is operated and held
again.
NOTE:
If the sunshade is in the closed position when
Express or Manual Open operation is initiated
the sunshade will automatically open to the half
open position prior to the sunroof opening.
Opening And Closing The Power Sunshade
The sunshade has two programmed positions:
half open and full open positions. When
operating the sunshade from the closed
position, the sunshade will always stop at the
half open position regardless of express or
manual open operation. The switch must be
actuated again to continue on to full open
position. If the sunroof is open or vented, the sunshade
cannot be closed beyond the half open position.
Pushing the sunshade close switch when the
sunroof is open/vented and the sunshade is at
half open position will first automatically close
the sunroof prior to the sunshade closing.
Express Open/Close
Push the sunshade switch rearward and
release it within one-half second, the sunshade
will open to the half open position and stop
automatically. Push and release the switch
again from the half open position and the
sunshade will open to the full open position and
stop automatically.
Push the sunshade switch forward and release
it within one-half second and the sunshade will
close automatically.
During Express Open or Express Close
operation, any other actuation of the sunroof
switches will stop the sunshade in a partially
open position.
Manual Open/Close
Push and hold the sunshade switch rearward,
the sunshade will open to the half open position
and stop automatically. Push and hold the
sunshade switch again and the sunshade will
open to the full open position.
Push and hold the switch forward and the
sunshade will close and stop at full closed
position.
Releasing the switch while the sunshade is in
motion will stop the sunshade in a partially open
position.
Pinch Protect Feature
This feature will detect an obstruction in the
opening of the sunroof during Express Close
operation. If an obstruction in the path of the
sunroof is detected, the sunroof will
automatically retract. Remove the obstruction if
this occurs.
NOTE:
If three consecutive sunroof close attempts
result in Pinch Protect reversals, Pinch Protect
will disable and the sunroof must be closed in
Manual Mode.
2

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GETTING TO KNOW YOUR VEHICLE97
SLIDE-IN CAMPERS
CAMPER APPLICATIONS
Certain truck models are not recommended for
slide-in campers. To determine if your vehicle is
excluded, please refer to the “Consumer
Information Truck-Camper Loading” document
available online at ramtrucks.com. For safety
reasons, follow all instructions in this
document.
NOTE:
When a cap or pickup camper is installed on a
vehicle, an alternate Center High Mounted Stop
Light (CHMSL) must be provided.
TRI-FOLD TONNEAU COVER — IF EQUIPPED
The Tri-Fold Tonneau Cover can be installed on
the truck bed to protect your gear and cargo.
TONNEAU COVER COMPONENTS

Folded Tonneau Components Tonneau Cover Latch Components

WARNING!
To avoid inhaling carbon monoxide, which is
deadly, the exhaust system on vehicles
equipped with “Cap or Slide-In Campers”
should extend beyond the overhanging
camper compartment and be free of leaks.
1 – Stowage Strap
2 – Tonneau Bumper Folded
1 — Handle
2 — Slide Locking Lever
3 — Locating Bumper
4 — Truck Flange Bead
5 — Latch Bumper
6 — J Hook
2

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114GETTING TO KNOW YOUR INSTRUMENT PANEL
INSTRUMENT CLUSTER DISPLAY
Your vehicle will be equipped with an
instrument cluster display, which offers useful
information to the driver. With the ignition in the
OFF mode, opening/closing of a door will
activate the display for viewing, and display the
total miles, or kilometers, in the odometer. Your
instrument cluster display is designed to display
important information about your vehicle’s
systems and features. Using a driver interactive
display located on the instrument panel, your
instrument cluster display can show you how
systems are working and give you warnings
when they are not. The steering wheel mounted
controls allow you to scroll through the main
menus and submenus. You can access the
specific information you want and make
selections and adjustments.
INSTRUMENT CLUSTER DISPLAY
C
ONTROLS
The instrument cluster display features a driver
interactive display that is located in the
instrument cluster.

Instrument Cluster Display/Controls Location

The instrument cluster display menu items may
consist of the following:
Speedometer
Vehicle Info
Off-Road — If Equipped
Driver Assist (show/hide) — If Equipped
Fuel Economy (show/hide)
Stop/Start — If Equipped
Trip Info (show/hide)
Trailer Tow (show/hide) — If Equipped
Audio (show/hide)
Messages
Screen Set Up
The system allows the driver to select
information by pushing the following instrument
cluster display control buttons located on the
left side of the steering wheel.

Instrument Cluster Display Control Buttons

1 – Instrument Cluster Display Controls
2 – Instrument Cluster Display Screen

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126GETTING TO KNOW YOUR INSTRUMENT PANEL
What to do when an electrical load reduction
action message is present (“Battery Saver On”
or “Battery Saver Mode”)
During a trip:
Reduce power to unnecessary loads if
possible:
Turn off redundant lights (interior or exte-
rior).
Check what may be plugged in to power
outlets +12 Volts, 115 Volts AC, USB
ports.
Check HVAC settings (blower, tempera -
ture).
Check the audio settings (volume).
After a trip:
Check if any aftermarket equipment was
installed (additional lights, upfitter electrical
accessories, audio systems, alarms) and
review specifications if any (load and Ignition
Off Draw currents).
Evaluate the latest driving cycles (distance,
driving time and parking time).
The vehicle should have service performed if
the message is still present during consecu -tive trips and the evaluation of the vehicle
and driving pattern did not help to identify the
cause.
WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in
the instrument panel together with a dedicated
message and/or acoustic signal when
applicable. These indications are indicative and
precautionary and as such must not be
considered as exhaustive and/or alternative to
the information contained in the Owner’s
Manual, which you are advised to read carefully
in all cases. Always refer to the information in
this chapter in the event of a failure indication.
All active telltales will display first if applicable.
The system check menu may appear different
based upon equipment options and current
vehicle status. Some telltales are optional and
may not appear.
RED WARNING LIGHTS
Seat Belt Reminder Warning Light
This warning light indicates when the
driver or passenger seat belt is
unbuckled. When the ignition is first
placed in the ON/RUN or ACC/ON/
RUN position and if the driver’s seat belt is
unbuckled, a chime will sound and the light will
turn on. When driving, if the driver or front
passenger seat belt remains unbuckled, the
Seat Belt Reminder Light will flash or remain on
continuously and a chime will sound
Ú
page 334.
Air Bag Warning Light
This warning light will illuminate to
indicate a fault with the air bag, and
will turn on for four to eight seconds
as a bulb check when the ignition is
placed in the ON/RUN or ACC/ON/RUN
position. This light will illuminate with a single
chime when a fault with the air bag has been
detected, it will stay on until the fault is cleared.
If the light is either not on during startup, stays
on, or turns on while driving, have the system
inspected at an authorized dealer as soon as
possible.
Brake Warning Light
This warning light monitors various
brake functions, including brake fluid
level and parking brake application. If
the brake light turns on it may
indicate that the parking brake is applied, that

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GETTING TO KNOW YOUR INSTRUMENT PANEL133
Service Stop/Start System Warning Light —
If Equipped
This warning light will illuminate when
the Stop/Start system is not
functioning properly and service is
required. Contact an authorized
dealer for service.
Service 4WD Warning Light — If Equipped
This warning light will illuminate to
signal a fault with the 4WD system. If
the light stays on or comes on during
driving, it means that the 4WD system
is not functioning properly and that service is
required. We recommend you drive to the
nearest service center and have the vehicle
serviced immediately.
Cruise Control Fault Warning Light
This warning light will illuminate to
indicate the Cruise Control System is
not functioning properly and service is
required. Contact an authorized
dealer.
YELLOW INDICATOR LIGHTS
Forward Collision Warning Off Indicator
Light — If Equipped
This indicator light illuminates to
indicate that Forward Collision
Warning is off.
Air Suspension Payload Protection
Indicator Light — If Equipped
This indicator light will illuminate to
indicate that the maximum payload
may have been exceeded or load
leveling cannot be achieved at its
current ride height. Protection Mode will
automatically be selected to “protect” the air
suspension system, air suspension adjustment
is limited due to payload.
Trailer Merge Assist Indicator Light — If
Equipped
This indicator light will illuminate to
indicate when Trailer Merge Assist
has been activated Ú page 318.
TOW/HAUL Indicator Light
This indicator light will illuminate
when TOW/HAUL mode is selected.
Cargo Light — If Equipped
This indicator light will illuminate
when the cargo light is activated by
pushing the cargo light button on the
headlight switch.
Air Suspension Off-Road 1 Indicator Light
— If Equipped
This light will illuminate when the air
suspension system is set to the
Off-Road 1 setting Úpage 165.
Air Suspension Off-Road 2 Indicator Light
— If Equipped
This light will illuminate when the air
suspension system is set to the
Off-Road 2 setting Úpage 165.
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GETTING TO KNOW YOUR INSTRUMENT PANEL135
Wait To Start Light — If Equipped
This indicator light will illuminate for
approximately two seconds when the
ignition is turned to the RUN position.
Its duration may be longer based on
colder operating conditions. Vehicle will not
initiate start until telltale is no longer displayed
Ú page 146.
NOTE:
The “Wait To Start” telltale may not illuminate if
the intake manifold temperature is warm
enough.
Water In Fuel Indicator Light — If Equipped
The “Water In Fuel Indicator Light” will
illuminate when there is water
detected in the fuel filter. If this light
remains on, DO NOT start the vehicle
before you drain the water from the fuel filter to
prevent engine damage, and please see an
authorized dealer.GREEN INDICATOR LIGHTS
Adaptive Cruise Control (ACC) Set With
Target Light — If Equipped
This will display when the ACC is set
and a target vehicle is detected
Ú page 179.
Adaptive Cruise Control (ACC) Set With No
Target Detected Indicator Light — If
Equipped
This light will turn on when the ACC is
SET and there is no target vehicle
detected Ú page 179.
ECO Mode Indicator Light
This light will turn on when ECO Mode
is active.
Park/Headlight On Indicator Light
This indicator light will illuminate
when the park lights or headlights are
turned on.
LaneSense Indicator Light — If Equipped
The LaneSense indicator light
illuminates solid green when both
lane markings have been detected
and the system is “armed” and ready
to provide visual and torque warnings if an
unintentional lane departure occurs
Ú page 199.
CAUTION!
The presence of water in the fuel system
circuit may cause severe damage to the
injection system and irregular engine
operation. If the indicator light is illuminated,
contact an authorized dealer as soon as
possible to bleed the system. If the above
indications come on immediately after
refuelling, water has probably been poured
into the tank: switch the engine off
immediately and contact an authorized
dealer.
3

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140 (Continued)
(Continued)
STARTING AND OPERATING
STARTING THE ENGINE
GASOLINE ENGINE
Before starting your vehicle, adjust your seat,
adjust both inside and outside mirrors, and
fasten your seat belt.
The starter should not be operated for more
than 10-second intervals. Waiting a few
seconds between such intervals will protect the
starter from overheating. DIESEL ENGINE
Before starting your vehicle, adjust your seat,
both inside and outside mirrors, and fasten your
seat belts.
The starter is allowed to crank for up to
25-second intervals. Waiting a few minutes
between such intervals will protect the starter
from overheating.
WARNING!
When leaving the vehicle, always make
sure the keyless ignition node is in the OFF
mode, remove the key fob from the vehicle
and lock the vehicle.
Never leave children alone in a vehicle, or
with access to an unlocked vehicle.
Allowing children to be in a vehicle unat-
tended is dangerous for a number of
reasons. A child or others could be seriously
or fatally injured. Children should be
warned not to touch the parking brake,
brake pedal or the gear selector.
Do not leave the key fob in or near the
vehicle, or in a location accessible to chil-
dren, and do not leave the ignition of a
vehicle equipped with Keyless Enter-N-Go
in the ACC or ON/RUN mode. A child could
operate power windows, other controls, or
move the vehicle.
Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build-up may cause serious injury or
death.
WARNING! (Continued)WARNING!
Before exiting a vehicle, always come to a
complete stop, then shift the automatic
transmission into PARK and apply the
parking brake.
Always make sure the ENGINE START/STOP
button is in the OFF mode, key fob is
removed from the vehicle and vehicle is
locked.
Never leave children alone in a vehicle, or
with access to an unlocked vehicle. Leaving
children in a vehicle unattended is
dangerous for a number of reasons. A child
or others could be seriously or fatally
injured. Children should be warned not to
touch the parking brake, brake pedal or the
gear selector.

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