2021 RAM 1500 ECO mode

GETTING TO KNOW YOUR VEHICLE61
Recirculation Button
Press and release this button on the
touchscreen, or push the button on
the faceplate, to change the system
between Recirculation mode and
outside air mode. The Recirculation indicator
and the A/C indicator illuminate when the
Recirculation button is pressed. Recirculation
can be used when outside conditions, such as
smoke, odors, dust, or high humidity are
present. Recirculation can be used in all modes.
Recirculation may be unavailable (button on the
touchscreen greyed out) if conditions exist that
could create fogging on the inside of the
windshield. The A/C can be deselected
manually without disturbing the mode control
selection. Continuous use of the Recirculation
mode may make the inside air stuffy and
window fogging may occur. Extended use of this
mode is not recommended.
Auto Button
Set your desired temperature and
press AUTO. AUTO will achieve and
maintain your desired temperature by
automatically adjusting the blower speed and air distribution. AUTO mode is highly
recommended for efficiency.
You can turn AUTO on in one of two ways:
Press and release this button on the touch
-
screen.
Push the button on the faceplate.
Toggling this function will cause the system to
switch between manual mode and automatic
mode Ú page 65.
Front Defrost Button
Press and release the Front Defrost
button on the touchscreen, or push
and release the button on the
faceplate, to change the current
airflow setting to Defrost mode. The Front
Defrost indicator illuminates when Front
Defrost is on. Air comes from the windshield
and side window demist outlets. When the
defrost button is selected, the blower level may
increase. Use Defrost mode with maximum
temperature settings for best windshield and
side window defrosting and defogging. When
toggling the front defrost mode button, the
climate system will return to the previous
setting.
Rear Defrost Button
Press and release the Rear Defrost
button on the touchscreen, or push
and release the button on the
faceplate, to turn on the rear window
defroster and the heated outside mirrors (if
equipped). The Rear Defrost indicator
illuminates when the rear window defroster is
on. The rear window defroster automatically
turns off after 15 minutes.
CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
Use care when washing the inside of the
rear window. Do not use abrasive window
cleaners on the interior surface of the
window. Use a soft cloth and a mild
washing solution, wiping parallel to the
heating elements. Labels can be peeled off
after soaking with warm water.
Do not use scrapers, sharp instruments, or
abrasive window cleaners on the interior
surface of the window.
Keep all objects a safe distance from the
window.
2

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64GETTING TO KNOW YOUR VEHICLE
A/C Button
Push the A/C button to engage the Air
Conditioning (A/C). The A/C indicator
illuminates when A/C is on.
NOTE:
For Manual Climate Controls, if the system is
in Mix, Floor or Defrost Mode, the A/C can be
turned off, but the A/C system shall remain
active to prevent fogging of the windows.
If fog or mist appears on the windshield or
side glass, select Defrost mode, and increase
blower speed if needed.
If your air conditioning performance seems
lower than expected, check the front of the
A/C condenser (located in front of the radi -
ator), for an accumulation of dirt or insects.
Clean with a gentle water spray from the front
of the radiator and through the condenser.
Recirculation Button
Push the Recirculation button to
change the system between
recirculation mode and outside air
mode. The Recirculation indicator and
the A/C indicator illuminate when the
Recirculation button is pressed. Recirculation can be used when outside conditions, such as
smoke, odors, dust, or humidity are present.
Recirculation can be used in all modes except
for Defrost. Recirculation may be unavailable if
conditions exist that could create fogging on the
inside of the windshield. The A/C can be
deselected manually without disturbing the
mode control selection. Continuous use of the
Recirculation mode may make the inside air
stuffy and window fogging may occur. Extended
use of this mode is not recommended.
On systems with Manual Climate Controls, the
Recirculation mode is not allowed in Defrost
mode to improve window cleaning operation.
Recirculation is disabled automatically if this
mode is selected. Attempting to use
Recirculation while in this mode causes the LED
in the control button to blink and then turn off.
Front Defrost Setting
Turn the mode control knob to the
Front Defrost mode setting. Air comes
from the windshield and side window
demist outlets. When the defrost
button is selected, the blower level may
increase. Use Defrost mode with maximum
temperature settings for best windshield and
side window defrosting and defogging.
Rear Defrost Button
Push and release the Rear Defrost
Control button to turn on the rear
window defroster and the heated
outside mirrors (if equipped). The
Rear Defrost indicator illuminates when the rear
window defroster is on. The rear window
defroster automatically turns off after
15 minutes.
CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
Use care when washing the inside of the
rear window. Do not use abrasive window
cleaners on the interior surface of the
window. Use a soft cloth and a mild
washing solution, wiping parallel to the
heating elements. Labels can be peeled off
after soaking with warm water.
Do not use scrapers, sharp instruments, or
abrasive window cleaners on the interior
surface of the window.
Keep all objects a safe distance from the
window.

21_DT_OM_EN_USC_t.book Page 64

66GETTING TO KNOW YOUR VEHICLE
NOTE:
It is not necessary to move the temperature
settings for cold or hot vehicles. The system
automatically adjusts the temperature,
mode, and blower speed to provide comfort
as quickly as possible.
The temperature can be displayed in US or
Metric units by selecting the US/Metric
customer-programmable feature within
Uconnect Settings Úpage 237.
To provide you with maximum comfort in the
Automatic mode during cold start-ups, the
blower fan will remain on low until the engine
warms up. The blower will increase in speed
and transition into Auto mode.
Manual Operation Override
This system offers a full complement of manual
override features. The AUTO symbol in the front
ATC display will be turned off when the system
is being used in the manual mode.
CLIMATE VOICE RECOGNITION
Adjust vehicle temperatures hands-free and
keep everyone comfortable while you keep
moving ahead. Push the VR button on the steering wheel. After
the beep, say one of the following commands:
“
Set driver temperature to 70 degrees ”
“Set passenger temperature to 70 degrees ”
Did you know: Voice Command for Climate may
only be used to adjust the interior temperature
of your vehicle. Voice Command will not work to
adjust the heated seats or steering wheel if
equipped.
OPERATING TIPS
NOTE:
Refer to the chart at the end of this section for
suggested control settings for various weather
conditions.
Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to provide
proper corrosion protection and to protect
against engine overheating. OAT coolant
(conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and
defroster performance, make sure the engine
cooling system is functioning properly and the proper amount, type, and concentration of
coolant is used. Use of the Air Recirculation
mode during Winter months is not
recommended, because it may cause window
fogging.
Vacation/Storage
For information on maintaining the Climate
Control system when the vehicle is being stored
for an extended period of time, see
Ú
page 461.
Window Fogging
Vehicle windows tend to fog on the inside in
mild, rainy, and/or humid weather. To clear the
windows, select Defrost or Mix mode and
increase the front blower speed. Do not use the
Recirculation mode without A/C for long
periods, as fogging may occur.
Outside Air Intake
Make sure the air intake, located directly in
front of the windshield, is free of obstructions,
such as leaves. Leaves collected in the air
intake may reduce airflow, and if they enter the
air distribution box, they could plug the water
drains. In Winter months, make sure the air
intake is clear of ice, slush, and snow.

21_DT_OM_EN_USC_t.book Page 66

78GETTING TO KNOW YOUR VEHICLE
AUTOMATIC WINDOW FEATURES
Auto-Down Feature
The driver and front passenger door power
window switches have an Auto-Down feature.
Push the window switch down for a short period
of time, then release, and the window will go
down automatically.
To stop the window from going all the way down
during the Auto-Down operation, pull up or push
down on the switch briefly. Auto-Up Feature With Anti-Pinch Protection
Lift the window switch up for a short period of
time and release; the window will go up
automatically.
To stop the window from going all the way up
during the Auto-Up operation, push down on the
switch briefly.
To close the window part way, lift the window
switch briefly and release it when you want the
window to stop.
If the window runs into any obstacle during
auto-closure, it will reverse direction and then
go back down. Remove the obstacle and use
the window switch again to close the window.
NOTE:
Any impact due to rough road conditions may
trigger the auto-reverse function unexpectedly
during auto-closure. If this happens, pull the
switch lightly and hold to close the window
manually.
RESET AUTO-UP
Should the Auto-Up feature stop working, the
window probably needs to be reset. To reset
Auto-Up:

1. Pull the window switch up to close the
window completely and continue to hold
the switch up for an additional two seconds
after the window is closed.

2. Push the window switch down firmly to open the window completely and continue to hold
the switch down for an additional two
seconds after the window is fully open.
WARNING!
Never leave children unattended in a vehicle.
Do not leave the key fob in or near the vehicle
or in a location accessible to children, and do
not leave the ignition of a vehicle equipped
with Keyless Enter-N-Go in the ACC or ON/
RUN mode. Occupants, particularly unat-
tended children, can become entrapped by
the windows while operating the power win -
dow switches. Such entrapment may result in
serious injury or death.
WARNING!
There is no anti-pinch protection when the
window is almost closed. To avoid personal
injury be sure to clear your arms, hands,
fingers and all objects from the window path
before closing.

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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.

21_DT_OM_EN_USC_t.book Page 80

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.
2

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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.

21_DT_OM_EN_USC_t.book Page 82

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

21_DT_OM_EN_USC_t.book Page 83