2020 RAM CHASSIS CAB engine

184STARTING AND OPERATING
Keyless Enter-N-Go — Ignition

Keyless Push Button Ignition

This feature allows the driver to operate the igni -
tion switch with the push of a button, as long as
the Remote Start/Keyless Enter-N-Go key fob is
in the passenger compartment.
Normal Starting Using ENGINE START/STOP
Button
To Turn On The Engine Using The ENGINE
START/STOP Button

1. The transmission must be in PARK.

2. Press and hold the brake pedal while pushing the ENGINE START/STOP button
once. 3. The system takes over and attempts to start
the vehicle. If the vehicle fails to start, the
starter will disengage automatically after
10 seconds.
4. If you wish to stop the cranking of the engine prior to the engine starting, push the
ENGINE START/STOP button again.
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or pressing
the accelerator pedal.
To Turn Off The Engine Using ENGINE START/
STOP Button

1. Place the gear selector in PARK, then push and release the ENGINE START/STOP
button.

2. The ignition will return to the OFF mode. 3. If the gear selector is not in PARK, the
ENGINE START/STOP button must be held
for two seconds or three short pushes in a
row with the vehicle speed above 5 mph
(8 km/h) before the engine will shut off. The
ignition will remain in the ACC mode until
the gear selector is in PARK and the button
is pushed twice to the OFF mode.
4. If the gear selector is not in PARK and the ENGINE START/STOP button is pushed
once with the vehicle speed above 5 mph
(8 km/h), the instrument cluster will display
a “Vehicle Not In Park ” message and the
engine will remain running. Never leave a
vehicle out of the PARK position, or it could
roll.
NOTE:
If the gear selector is not in PARK, and the
ENGINE START/STOP button is pushed once
with the vehicle speed below 5 mph (8 km/h),
the engine will shut off and the ignition will
remain in the ACC position. If vehicle speed
drops below 1.2 mph (1.9 km/h), the vehicle
may AutoPark. See AutoPark section for further
details.

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STARTING AND OPERATING185
ENGINE START/STOP Button Functions — With
Driver’s Foot OFF The Brake Pedal (In PARK Or
NEUTRAL Position)
The ENGINE START/STOP button operates
similar to an ignition switch. It has three modes:
OFF, ACC, and RUN. To change the ignition
modes without starting the vehicle and use the
accessories, follow these directions:

1. Start with the ignition in the OFF mode.

2. Push the ENGINE START/STOP button once
to place the ignition to the ACC mode.
3. Push the ENGINE START/STOP button a second time to place the ignition to the RUN
mode.
4. Push the ENGINE START/STOP button a third time to return the ignition to the OFF
mode.
AutoPark — Rotary Shifter and 8-Speed
Transmission Only
AutoPark is a supplemental feature to assist in
placing the vehicle in PARK should the situa-
tions on the following pages occur. It is a
backup system and should not be relied upon
as the primary method by which the driver shifts
the vehicle into PARK. The conditions under which AutoPark will
engage are outlined on the following pages.
If the vehicle is not in PARK and the driver turns
off the engine, the vehicle may AutoPark.
AutoPark will engage when all of these condi
-
tions are met:
Vehicle is equipped with a rotary shifter and
an 8-speed transmission
Vehicle is not in PARK
Vehicle speed is 1.2 mph (1.9 km/h) or less
Ignition switched from RUN to ACC
NOTE:
For Keyless Enter-N-Go equipped vehicles, the
engine will turn off and the ignition switch will
change to ACC mode. After 30 minutes the igni -
tion switches to OFF automatically, unless the
driver turns the ignition switch OFF.
If the vehicle is not in PARK and the driver exits
the vehicle with the engine running, the vehicle
may AutoPark.
AutoPark will engage when all of these condi -
tions are met:
Vehicle is equipped with a rotary shifter and
an 8-speed transmission
Vehicle is not in PARK
Vehicle speed is 1.2 mph (1.9 km/h) or less
Driver’s seat belt is unbuckled
Driver’s door is ajar
Brake pedal is not depressed
WARNING!
Driver inattention could lead to failure to
place the vehicle in PARK. ALWAYS DO A
VISUAL CHECK that your vehicle is in PARK
by verifying that a solid (not blinking) “P” is
indicated in the Instrument Cluster Display
and near the gear selector. If the "P" indi -
cator is blinking, your vehicle is not in
PARK. As an added precaution, always
apply the parking brake when exiting the
vehicle.
AutoPark is a supplemental feature. It is not
designed to replace the need to shift your
vehicle into PARK. It is a backup system
and should not be relied upon as the
primary method by which the driver shifts
the vehicle into PARK.
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186STARTING AND OPERATING
The message “ AutoPark Engaged Shift to P
then Shift to Gear ” will display in the instrument
cluster.
NOTE:
In some cases the ParkSense graphic will be
displayed in the instrument cluster, causing the
“ AutoPark Engaged Shift to P then Shift to
Gear ” to not be seen. In these cases, the shifter
must be returned to “P” to select desired gear.
If the driver shifts into PARK while moving, the
vehicle may AutoPark.
AutoPark will engage ONLY when vehicle speed
is 1.2 mph (1.9 km/h) or less.
The message “ Vehicle Speed is Too High to
Shift to P ” will be displayed in the instrument
cluster if vehicle speed is above 1.2 mph
(1.9 km/h). 4WD LOW — If Equipped
AutoPark will be disabled when operating the
vehicle in 4WD LOW.
The message “
AutoPark Disabled ” will be
displayed in the instrument cluster.
Additional customer warnings will be given
when all of these conditions are met:
Vehicle is not in PARK
Driver’s door is ajar
Vehicle is in 4WD LOW range
The message “ AutoPark Not Engaged ” will be
displayed in the instrument cluster. A warning
chime will continue until you shift the vehicle
into PARK or the driver’s door is closed.
ALWAYS DO A VISUAL CHECK
that your vehicle
is in PARK by looking for the “P” in the Instru -
ment Cluster Display and near the shifter. As an
added precaution, always apply the parking
brake when exiting the vehicle.
If Engine Fails To Start
If the engine fails to start after you have
followed the “Normal Starting” procedure, it
may be flooded. Push the accelerator pedal all
the way to the floor and hold it there while the engine is cranking. This should clear any excess
fuel in case the engine is flooded.
The starter motor will engage automatically, run
for 10 seconds, and then disengage. Once this
occurs, release the accelerator pedal and the
brake pedal, wait 10 to 15 seconds, then repeat
the “Normal Starting” procedure.
WARNING!
If vehicle speed is above 1.2 mph (1.9 km/h),
the transmission will default to NEUTRAL until
the vehicle speed drops below 1.2 mph
(1.9 km/h). A vehicle left in the NEUTRAL
position can roll. As an added precaution,
always apply the parking brake when exiting
the vehicle.
WARNING!
Never pour fuel or other flammable liquid
into the throttle body air inlet opening in an
attempt to start the vehicle. This could
result in flash fire causing serious personal
injury.
Do not attempt to push or tow your vehicle
to get it started. Vehicles equipped with an
automatic transmission cannot be started
this way. Unburned fuel could enter the
catalytic converter and once the engine has
started, ignite and damage the converter
and vehicle.
If the vehicle has a discharged battery,
booster cables may be used to obtain a
start from a booster battery or the battery in
another vehicle. This type of start can be
dangerous if done improperly. Refer to
“Jump Starting Procedure” in “In Case Of
Emergency” for further information.

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STARTING AND OPERATING187
(Continued)
If the engine has been flooded, it may start to
run, but not have enough power to continue
running when the ignition button/key is
released. If this occurs, continue cranking with
the accelerator pedal pushed all the way to the
floor. Release the accelerator pedal and the
ignition button/key once the engine is running
smoothly.
If the engine shows no sign of starting after a 10
second period of engine cranking with the
accelerator pedal held to the floor, wait 10 to 15
seconds, then repeat the “Normal Starting”
procedure.
Cold Weather Operation (Below –22°F Or
−30°C)
To ensure reliable starting at these tempera -
tures, use of an externally powered electric
engine block heater (available from your autho -
rized dealer) is recommended.
After Starting
The idle speed is controlled automatically, and
it will decrease as the engine warms up.
STARTING THE ENGINE — DIESEL ENGINE
Before starting your vehicle, adjust your seat,
adjust both inside and outside mirrors, and
fasten your seat belts.
The starter should not be operated for more
than 25-second intervals. Waiting a few
minutes between such intervals will protect the
starter from overheating.
Automatic Transmission
Start the engine with the transmission in the
NEUTRAL or PARK position. Apply the brake
before shifting to any driving range.
CAUTION!
To prevent damage to the starter, do not
crank the engine for more than 10 seconds at
a time. Wait 10 to 15 seconds before trying
again.
WARNING!
Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build up may cause serious injury or
death.
When leaving the vehicle, always remove
the key fob 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. 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. A child could operate power
windows, other controls, or move the
vehicle.
WARNING! (Continued)
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188STARTING AND OPERATING
Tip Start Feature
Do not press the accelerator. Place the ignition
switch briefly to the START position and release
it. The starter motor will continue to run and will
automatically disengage when the engine is
running.
Keyless Enter-N-Go — Ignition

Keyless Push Button Ignition

This feature allows the driver to operate the igni -
tion switch with the push of a button, as long as
the Remote Start/Keyless Enter-N-Go key fob is
in the passenger compartment.
Normal Starting
Using The ENGINE START/STOP Button

1. The transmission must be in PARK or NEUTRAL.

2. Press and hold the brake pedal while pushing the ENGINE START/STOP button
once.
3. The system takes over and attempts to start the vehicle. If the vehicle fails to start, the
starter will disengage automatically after 25
seconds.
4. If you wish to stop the cranking of the engine prior to the engine starting, remove
your foot from the brake pedal and push the
ENGINE START/STOP button again.
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or
pressing the accelerator pedal.
Under cold weather conditions, the engine
may not immediately crank if the "Wait to
Start" telltale is illuminated. This is normal
operation. For vehicles equipped with
Keyless Enter-N-Go, the vehicle will automat -
ically crank when the "Wait to Start" time has
elapsed. See the section "Starting Procedure
Engine Manifold Air Temperature 0°F to
66°F (18° C to 19°C)" for more information.
To Turn Off The Engine Using ENGINE START/
STOP Button

1. Place the gear selector in PARK, then push and release the ENGINE START/STOP
button.

2. The ignition will return to the OFF mode.
3. If the gear selector is not in PARK and the ENGINE START/STOP button is pushed
once, the instrument cluster will display a
“Vehicle Not In Park” message and the
engine will remain running. Never leave a
vehicle out of the PARK position, or it could
roll.

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STARTING AND OPERATING189
4. If the gear selector is in NEUTRAL, and the
vehicle speed below 5 mph (8 km/h),
pushing the ENGINE START/STOP button
once will turn the engine off. The ignition will
remain in the ACC mode.
5. If the vehicle speed is above 5 mph (8 km/ h), the ENGINE START/STOP button must be
held for two seconds (or three short pushes
in a row) to turn the engine off. The ignition
will remain in the ACC mode (NOT the OFF
mode) if the engine is turned off when the
transmission is not in PARK.
NOTE:
If the ignition is left in the ACC or ON/RUN
(engine not running) mode and the transmis -
sion is in PARK, the system will automatically
time out after 30 minutes of inactivity and the
ignition return to the OFF mode. ENGINE START/STOP Button Functions — With
Driver’s Foot OFF The Brake Pedal (In PARK Or
NEUTRAL Position)
The ENGINE START/STOP button operates
similar to an ignition switch. It has three posi
-
tions, OFF, ACC, RUN. To change the ignition
switch positions without starting the vehicle and
use the accessories follow these steps:

1. Starting with the ignition in the OFF posi -
tion:

2. Push the ENGINE START/STOP button once to change the ignition to the ACC position.
3. Push the ENGINE START/STOP button a second time to change the ignition to the
RUN position.
4. Push the ENGINE START/STOP button a third time to return the ignition to the OFF
position.Keyless Enter-N-Go Starting Procedure —
Engine Manifold Air Temperature 0°F To
66°F (–18°C to 19°C)
NOTE:
The temperature displayed in the instrument
cluster does not necessarily reflect the engine
manifold air temperature. Refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.
When engine temperatures fall below 66°F
(19°C) the “Wait To Start” telltale will remain on
indicating the intake air heater system is active.
Follow the steps in the “Normal Starting” proce -
dure except:

1. Pushing the engine start button with the driver’s foot on the brake will move the
ignition from OFF or ACC to RUN, and will
illuminate the "Wait to Start" telltale. The
engine will not immediately crank, this is
normal operation.

2. The “Wait to Start" telltale will remain on for a period of time that varies depending on
the engine temperature.
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190STARTING AND OPERATING
3. While the "Wait to Start" telltale is on, the
instrument cluster will additionally display a
gauge or bar whose initial length represents
the full "Wait to Start" time period. Its length
will decrease until it disappears when the
"Wait to Start" time has elapsed.
4. After the engine “Wait to Start” telltale goes off, the engine will automatically crank. 5. After engine start-up, check to see that
there is oil pressure.
6. Release the parking brake and drive.
NOTE:
Engine idle speed will automatically increase
to 1,000 RPM and engage the Variable
Geometry Turbocharger at low coolant
temperatures to improve engine warm-up.
The engine will not automatically crank after
the engine "Wait to Start" telltale goes off if a
door or the hood is ajar.
If the engine stalls, or if the ignition switch is
left ON for more than two minutes after the
“Wait to Start” telltale goes out, reset the
intake air heater by turning the ignition
switch to the OFF position for at least 5
seconds and then back ON. Repeat steps 1
through 7 of “Keyless Enter-N-Go Starting
Procedure – Engine Manifold Air Tempera -
ture Below 66°F (19°C).”
Extreme Cold Weather
The Cummins Turbo Diesel engine is equipped
with several features designed to assist cold
weather starting and operation:
The engine block heater is a resistance
heater installed in the water jacket of the
engine just above and behind the oil filter. It
requires a 110–115 Volt AC electrical outlet
with a grounded, three-wire extension cord.
NOTE:
The engine block heater cord is a factory
installed option. If your vehicle is not equipped,
heater cords are available from your authorized
Mopar dealer.
A 12 Volt heater built into the fuel filter hous -
ings aid in preventing fuel gelling. It is
controlled by a built-in thermostat.
An intake air heater system both improves
engine starting and reduces the amount of
white smoke generated by a warming engine.
CAUTION!
If the “Water in Fuel Indicator Light” remains
on, DO NOT START the engine before you
drain the water from the fuel filters to avoid
engine damage. Refer to “Draining Fuel/
Water Separator Filter” in “Servicing And
Maintenance” for further information.
CAUTION!
Do not crank engine for more than 25
seconds at a time or starter motor damage
may result. Turn the ignition switch to the OFF
position and wait at least two minutes for the
starter to cool before repeating start
procedure.

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STARTING AND OPERATING191
Normal Starting Procedure — Engine
Manifold Air Temperature Above 66°F
(19°C)
Observe the instrument panel cluster lights
when starting the engine.

1. Always apply the parking brake.

2. Shift into PARK for an automatic transmis -
sion.
3. Place the ignition switch in the ON position and watch the instrument panel cluster
lights. 4. Place the ignition switch in the START posi
-
tion and crank the engine. Do not press the
accelerator during starting.
5. Check that the oil pressure warning light has turned off.
6. Release the parking brake.
Starting Procedure — Engine Manifold Air
Temperature 0°F To 66°F (–18°C to 19°C)
NOTE:
The temperature displayed in the instrument
cluster does not necessarily reflect the engine
manifold air temperature. Refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.
When engine temperatures fall below 66°F
(19°C) the “Wait To Start” telltale will remain on
indicating the intake air heater system is active.
Follow the steps in the “Normal Starting” proce -
dure except:

1. The “Wait to Start” telltale will remain on for a period of time that varies depending
on the engine temperature.

2. While the “Wait to Start” telltale is on, the instrument cluster will additionally display a
gauge or bar whose initial length represents
the full “Wait to Start” time period. Its length
will decrease until it disappears when the
“Wait to Start” time has elapsed.
CAUTION!
If the “Water in Fuel Indicator Light” remains
on, DO NOT START the engine before you
drain the water from the fuel filters to avoid
engine damage. Refer to “Draining Fuel/
Water Separator Filter” in “Servicing And
Maintenance” for further information.
CAUTION!
Do not crank engine for more than 25
seconds at a time or starter motor damage
may result. Turn the ignition switch to the OFF
position and wait at least two minutes for the
starter to cool before repeating start
procedure.
5

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