2021 RAM 1500 engine

20GETTING TO KNOW YOUR VEHICLE
Programming And Requesting Additional
Key Fobs
Programming the key fob may be performed by
an authorized dealer.
NOTE:
Once a key fob is programmed to a vehicle, it
cannot be re-purposed and reprogrammed to
another vehicle.
Only key fobs that are programmed to the
vehicle electronics can be used to start and
operate the vehicle. Once a key fob is
programmed to a vehicle, it cannot be
programmed to any other vehicle.
Duplication of key fobs may be performed at an
authorized dealer. This procedure consists of
programming a blank key fob to the vehicle electronics. A blank key fob is one that has
never been programmed.
NOTE:
When having the Sentry Key Immobilizer system
serviced, bring all vehicle keys with you to an
authorized dealer Ú
page 482.
SENTRY KEY
The Sentry Key Immobilizer system prevents
unauthorized vehicle operation by disabling the
engine. The system does not need to be armed
or activated. Operation is automatic, regardless
of whether the vehicle is locked or unlocked.
The system uses a key fob, keyless push button
ignition and a Radio Frequency (RF) receiver to
prevent unauthorized vehicle operation.
Therefore, only key fobs that are programmed
to the vehicle can be used to start and operate
the vehicle. The system cannot reprogram a key
fob obtained from another vehicle.
After placing the ignition switch in the ON/RUN
position, the vehicle security light will turn on for
three seconds for a bulb check. If the light
remains on after the bulb check, it indicates
that there is a problem with the electronics. In
addition, if the light begins to flash after the
bulb check, it indicates that someone attempted to start the engine with an invalid key
fob. In the event that a valid key fob is used to
start the engine but there is an issue with the
vehicle electronics, the engine will start and
shut off after two seconds.
If the vehicle security light turns on during
normal vehicle operation (vehicle running for
longer than 10 seconds), it indicates that there
is a fault in the electronics. Should this occur,
have the vehicle serviced as soon as possible by
an authorized dealer.
All of the key fobs provided with your new
vehicle have been programmed to the vehicle
electronics Ú
page 482.
WARNING!
Always remove the key fobs from the
vehicle and lock all doors when leaving the
vehicle unattended.
For vehicles equipped with Keyless
Enter-N-Go — Ignition, always remember to
place the ignition in the OFF mode.
CAUTION!
The Sentry Key Immobilizer system is not
compatible with some aftermarket remote
starting systems. Use of these systems may
result in vehicle starting problems and loss of
security protection.

21_DT_OM_EN_USC_t.book Page 20

GETTING TO KNOW YOUR VEHICLE21
(Continued)
IGNITION SWITCH
KEYLESS ENTER-N-GO — IGNITION
This feature allows the driver to operate the
ignition switch with the push of a button as long
as the key fob is in the passenger compartment.
The START/STOP ignition button has several
operating modes that are labeled and will
illuminate when in position. These modes are
OFF, ACC, ON/RUN, and START.
Keyless Push Button Ignition

The push button ignition can be placed in the
following modes: OFF

The engine is stopped
Some electrical devices (e.g. central locking,
alarm, etc.) are still available
ACC
Engine is not started
Some electrical devices are available (e.g.
power sunroof, power windows etc.)
ON/RUN
Driving position
All the electrical devices are available (e.g.
climate controls, heated seats, etc.)
START
The engine will start (when foot is on the
brake)
NOTE:
If the ignition switch does not change the mode
by pushing the button, the key fob may have a
low or depleted battery. In this situation, a back
up method can be used to operate the ignition
switch. Put the nose side (side opposite of the
emergency key) of the key fob against the START/STOP ignition button and push to
operate the ignition switch.

Back Up Starting Method

1 — OFF
2 — ACC (Accessory)
3 — ON/RUN
WARNING!
When exiting the vehicle, always remove
the key fob from the vehicle and lock your
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.
2

21_DT_OM_EN_USC_t.book Page 21

22GETTING TO KNOW YOUR VEHICLE
NOTE:
The key fob may not be detected by the
vehicle Keyless Enter-N-Go system if it is
located next to a mobile phone, laptop or
other electronic device; these devices may
block the key fob’s wireless signal and prevent the Keyless Enter-N-Go system from
starting the vehicle.
Engine starting procedure Ú
page 140.
When opening the driver's door and the igni -
tion is in the ON/RUN position (engine not
running), a chime will sound to remind you to
place the ignition in the OFF position. In addi -
tion to the chime, the message “Ignition or
Accessory ON” will display in the cluster.
REMOTE START — IF EQUIPPED
(GASOLINE)
This system uses the key fob to start
the engine conveniently from outside
the vehicle while still maintaining
security. The system has a range of
approximately 300 ft (91 m).
Remote start is used to defrost windows in cold
weather and to reach a comfortable climate in
all ambient conditions before the customer
enters the vehicle. NOTE:
Obstructions between the vehicle and key fob
may reduce this range.
HOW TO USE REMOTE START
Push and release the Remote Start button on
the key fob twice within five seconds. The
vehicle doors will lock, the parking lights will
flash, and the horn will chirp twice (if
programmed). Then, the engine will start, and
the vehicle will remain in the Remote Start
mode for a 15 minute cycle.
Pushing the remote start button a third time
shuts the engine off.
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 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.
CAUTION!
An unlocked vehicle is an invitation for
thieves. Always remove key fob from the
vehicle and lock all doors when leaving the
vehicle unattended.
WARNING!
(Continued)
WARNING!
Do not start or run an engine in a closed
garage or confined area. Exhaust gas
contains Carbon Monoxide (CO) which is
odorless and colorless. Carbon Monoxide is
poisonous and can cause serious injury or
death when inhaled.
Keep key fobs away from children. Opera -
tion of the Remote Start System, windows,
door locks or other controls could cause
serious injury or death.

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GETTING TO KNOW YOUR VEHICLE23
To drive the vehicle, push the unlock button,
insert the key into the ignition, and turn to the
ON/RUN position.
NOTE:
With Remote Start, the engine will only run
for 15 minutes.
Remote Start can only be used twice.
If an engine fault is present or fuel level is
low, the vehicle will start and then shut down
in 10 seconds.
The parking lights will turn on and remain on
during Remote Start mode.
For security, power window and power
sunroof operation (if equipped) are disabled
when the vehicle is in the Remote Start
mode.
The ignition must be placed in the ON/RUN
position before the Remote Start sequence
can be repeated for a third cycle. All of the following conditions must be met
before the engine will remote start:
Gear selector in PARK
Doors closed
Hood closed
Hazard switch off
Brake switch inactive (brake pedal not
pushed)
Battery at an acceptable charge level
PANIC button not pushed
Fuel meets minimum requirement
System not disabled from previous remote
start event
Vehicle Security system not active
Malfunction Indicator Light is not illuminated
TO EXIT REMOTE START MODE
To drive the vehicle after starting the Remote
Start system, either push and release the
unlock button on the key fob to unlock the
doors, or unlock the vehicle using Keyless
Enter-N-Go — Passive Entry via the door
handles, and disarm the vehicle security system
(if equipped). Then, prior to the end of the
15 minute cycle, press the brake pedal and
push and release the START/STOP ignition
button.
WARNING!
Do not start or run an engine in a closed
garage or confined area. Exhaust gas
contains Carbon Monoxide (CO) which is
odorless and colorless. Carbon Monoxide is
poisonous and can cause serious injury or
death when inhaled.
Keep key fobs away from children. Opera
-
tion of the Remote Start System, windows,
door locks or other controls could cause
serious injury or death.
2

21_DT_OM_EN_USC_t.book Page 23

24GETTING TO KNOW YOUR VEHICLE
The Remote Start system will turn the engine off
with another push and release of the Remote
Start button on the key fob, or if the engine is
allowed to run for the entire 15 minute cycle.
Once the ignition is placed in the ON/RUN
position, the climate controls will resume the
previously set operations (temperature, blower
control, etc.).
NOTE:
To avoid unintentional shutdowns, the
system will disable for two seconds after
receiving a valid Remote Start request.
For vehicles equipped with the Keyless
Enter-N-Go — Passive Entry feature, the
message “Remote Start Active — Push Start
Button” will display in the instrument cluster
display until you push the START/STOP igni -
tion button.
REMOTE START FRONT DEFROST
A
CTIVATION — IF EQUIPPED
When remote start is active, and the outside
ambient temperature is 40°F (4.5°C) or below,
the system will automatically activate front
defrost for 15 minutes or less. The time is
dependent on the ambient temperature. Once
the timer expires, the system will automatically adjust the settings depending on ambient
conditions. See “Remote Start Comfort Systems
— If Equipped” in the next section for detailed
operation.
REMOTE START COMFORT SYSTEMS —
I
F EQUIPPED
When remote start is activated, the front and
rear defrost will automatically turn on in cold
weather. The heated steering wheel and driver
heated seat feature will turn on if programmed
in the comfort menu screen within Uconnect
Settings Ú page 237. In warm weather, the
driver vented seat feature will automatically
turn on when the remote start is activated and
is programmed in the comfort menu screen.
The vehicle will adjust the climate control
settings depending on the outside ambient
temperature.
Automatic Temperature Control (ATC) — If
Equipped
The climate controls automatically adjust to an
optimal temperature and mode, dependent on
the outside ambient temperature. When the
ignition is placed in the ON/RUN position, the
climate controls will resume their previous
settings. Manual Temperature Control (MTC) — If
Equipped
In ambient temperatures of 40°F (4.5°C) or
below, the climate settings will default to
maximum heat, with fresh air entering the
cabin. If the front defrost timer expires, the
vehicle will enter Mix Mode.
In ambient temperatures from 40°F (4.5°C)
to 78°F (26°C), the climate settings will be
based on the last settings selected by the
driver.
In ambient temperatures of 78°F (26°C) or
above, the climate settings will default to
MAX A/C, Bi-Level mode, with Recirculation
on.
For more information on ATC, MTC, and climate
control settings, see Ú page 60.
NOTE:
These features will stay on through the duration
of remote start, or until the ignition is placed in
the ON/RUN position. The climate control
settings will change, and exit the automatic
defaults, if manually adjusted by the driver
while the vehicle is in remote start mode. This
includes turning the climate controls off using
the OFF button.

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GETTING TO KNOW YOUR VEHICLE25
REMOTE START WINDSHIELD WIPER
D
E-ICER ACTIVATION — IF EQUIPPED
When the Remote Start system is active and the
outside ambient temperature is less than 33°F
(0.6°C), the Windshield Wiper De-Icer will
activate. Exiting remote start will its resume
previous operation. If the Windshield Wiper
De-Icer was active, the timer and operation will
continue.
REMOTE START ABORT MESSAGE
The following messages will display in the
instrument cluster display if the vehicle fails to
remote start, or exits remote start prematurely:
Remote Start Cancelled — Door Open
Remote Start Cancelled — Hood Open
Remote Start Cancelled — Fuel Low
Remote Start Cancelled — Too Cold
Remote Start Cancelled — Time Expired
Remote Start Disabled — Start Vehicle to
Reset
The message will stay active until the ignition is
placed in the ON/RUN position Ú page 482.
REMOTE START — IF EQUIPPED (DIESEL)
This system uses the key fob to start
the engine conveniently from outside
the vehicle while still maintaining
security. The system has a range of
approximately 300 ft (91 m).
NOTE:
Obstructions between the vehicle and the
key fob may reduce this range.
The Remote Start system will wait for the
Wait To Start indicator light Ú page 135 to
extinguish before cranking the engine. This
allows time for the engine pre-heat cycle to
pre-heat the cylinder air, and is normal in
cold weather. For further information on the
Wait To Start indicator light and the pre-heat
cycle see .
HOW TO USE REMOTE START
All of the following conditions must be met
before the engine will remote start:
Gear selector in PARK
Doors closed
Hood closed
Hazard switch off
Brake switch inactive (brake pedal not
pressed)
Battery at an acceptable charge level
PANIC button not pushed
Fuel meets minimum requirement
System not disabled from previous remote
start event
Vehicle Security system not active
Water In Fuel indicator light is not illuminated
Wait To Start indicator light is not illuminated
Malfunction Indicator Light (MIL) is not illumi -
nated
2

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26GETTING TO KNOW YOUR VEHICLE
VEHICLE SECURITY SYSTEM — IF EQUIPPED
The Vehicle Security system monitors the vehicle
doors, hood, tailgate, and the Keyless Enter-N-Go
— Ignition for unauthorized operation. While the
Vehicle Security system is armed, interior
switches for door locks and tailgate release are
disabled. If something triggers the alarm, the
Vehicle Security system will provide the following
audible and visible signals:
The horn will pulse
The turn signals will flash
The vehicle security light in the instrument
cluster will flash
TO ARM THE SYSTEM
Follow these steps to arm the Vehicle Security
system:

1. Make sure the vehicle’s ignition is placed
in the OFF position.

For vehicles equipped with Keyless Entry,
make sure the vehicle’s keyless ignition
system is OFF.
2. Perform one of the following methods to lock the vehicle:
Push the lock button on the interior
power door lock switch with the driver
and/or passenger door open.
Push the lock button on the exterior
Passive Entry door handle with a valid key
fob available in the same exterior zone
Úpage 28.
Push the lock button on the key fob.
3. If any doors are open, close them.
TO DISARM THE SYSTEM
The Vehicle Security system can be disarmed
using any of the following methods:
Push the unlock button on the key fob.
Grab the Passive Entry door handle to unlock
the door Ú page 28.
Cycle the ignition out of the OFF position to
disarm the system.
NOTE:
The driver's door key cylinder cannot arm or
disarm the Vehicle Security system. Use of
the door key cylinder when the system is
armed will sound the alarm when the door is
opened.
The Vehicle Security system remains armed
when the power tailgate (if equipped) is
opened using the tailgate button on the key
fob.
If Passive Entry (if equipped) is used to
unlock the tailgate, the Vehicle Security
system is disarmed and the rest of the
vehicle doors will remain locked unless
“Unlock All Doors 1st Press” is selected in the
Passive Entry settings.
When the Vehicle Security system is armed,
the interior power door lock switches will not
unlock the doors.
WARNING!
Do not start or run an engine in a closed
garage or confined area. Exhaust gas
contains Carbon Monoxide (CO) which is
odorless and colorless. Carbon Monoxide is
poisonous and can cause serious injury or
death when inhaled.
Keep key fobs away from children. Opera -
tion of the Remote Start System, windows,
door locks or other controls could cause
serious injury or death.

21_DT_OM_EN_USC_t.book Page 26

32GETTING TO KNOW YOUR VEHICLE
(Continued)
downward as desired. To lengthen or shorten
the steering column, pull the steering wheel
outward or push it inward as desired. To lock
the steering column in position, push the
control upward until fully engaged.
HEATED STEERING WHEEL — IF
E
QUIPPED
The steering wheel contains a heating element
that helps warm your hands in cold weather.
The heated steering wheel has only one
temperature setting. Once the heated steering
wheel has been turned on, it will stay on until the operator turns it off. The heated steering
wheel may not turn on when it is already warm.
The heated steering wheel control button is
located within the climate or controls screen of
the touchscreen.
Press the heated steering wheel button
once to turn the heating element on.
Press the heated steering wheel button a
second time to turn the heating element off.
NOTE:
The engine must be running for the heated
steering wheel to operate.
For information on use with the Remote Start
system, see Ú page 24.DRIVER MEMORY SETTINGS — IF EQUIPPED
This feature allows the driver to save up to two
different memory profiles for easy recall
through a memory switch. Each memory profile
saves desired position settings for the following
features:
Driver’s seat
Easy Entry/Exit seat operation (on/off) (if
equipped)
Adjustable pedals (if equipped)
Side mirrors
NOTE:
Your vehicle is equipped with two key fobs, each
can be linked to either memory position 1 or 2.
WARNING!
Do not adjust the steering column while
driving. Adjusting the steering column while
driving or driving with the steering column
unlocked, could cause the driver to lose
control of the vehicle. Failure to follow this
warning may result in serious injury or death.
WARNING!
Persons who are unable to feel pain to the
skin because of advanced age, chronic
illness, diabetes, spinal cord injury, medica -
tion, alcohol use, exhaustion, or other phys -
ical conditions must exercise care when
using the steering wheel heater. It may
cause burns even at low temperatures,
especially if used for long periods.
Do not place anything on the steering wheel
that insulates against heat, such as a
blanket or steering wheel covers of any type
and material. This may cause the steering
wheel heater to overheat.
WARNING! (Continued)

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