2020 Ram ProMaster transmission

54GETTING TO KNOW YOUR INSTRUMENT PANEL
ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated
Onboard Diagnostic system called OBD II. This
system monitors the performance of the emis -
sions, engine, and transmission control
systems. When these systems are operating
properly, your vehicle will provide excellent
performance and fuel economy, as well as
engine emissions well within current govern -
ment regulations.
If any of these systems require service, the OBD
II system will turn on the Malfunction Indicator
Light (MIL). It will also store diagnostic codes
and other information to assist your service
technician in making repairs. Although your
vehicle will usually be drivable and not need
towing, see an authorized dealer for service as
soon as possible.
Onboard Diagnostic System (OBD II)
Cybersecurity
Your vehicle is required to have an Onboard
Diagnostic system (OBD II) and a connection
port to allow access to information related to
the performance of your emissions controls.
Authorized service technicians may need to
access this information to assist with the diag -
nosis and service of your vehicle and emissions
system. For further information, refer to “Cybersecurity”
in “Multimedia”.
CAUTION!
Prolonged driving with the MIL on could
cause further damage to the emission
control system. It could also affect fuel
economy and driveability. The vehicle must
be serviced before any emissions tests can
be performed.
If the MIL is flashing while the vehicle is
running, severe catalytic converter damage
and power loss will soon occur. Immediate
service is required.
WARNING!
ONLY an authorized service technician
should connect equipment to the OBD II
connection port in order to read the VIN,
diagnose, or service your vehicle.
If unauthorized equipment is connected to
the OBD II connection port, such as a
driver-behavior tracking device, it may:
Be possible that vehicle systems,
including safety related systems, could
be impaired or a loss of vehicle control
could occur that may result in an acci-
dent involving serious injury or death.
Access, or allow others to access, infor- mation stored in your vehicle systems,
including personal information.

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92
STARTING AND OPERATING
STARTING THE ENGINE
Before starting your vehicle, adjust your seat,
adjust both inside and outside mirrors, and
fasten your seat belts.
Automatic Transmission
The gear selector must be in the PARK or
NEUTRAL position before you can start the
engine. Press the brake pedal before shifting to
any driving gear.
NOTE:
You must press the brake pedal before shifting
out of PARK.
Normal Starting
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or pressing
the accelerator pedal.
Turn the ignition switch to the AVV (START) posi-
tion and release it when the engine starts. If the
engine fails to start within 10 seconds, turn the
ignition switch to the STOP (OFF/LOCK) posi -
tion, 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.
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. Crank the
engine for no more than 15 seconds. This
should clear any excess fuel in case the engine
is flooded. Leave the ignition key in the RUN
position, release the accelerator pedal and
repeat the “Normal Starting” procedure.
WARNING!
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 transmission gear
selector.
Do not leave the key fob in or near the
vehicle (or in a location accessible to chil -
dren). A child could operate power
windows, other controls, or move the
vehicle.

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STARTING AND OPERATING93
After Starting
The idle speed is controlled automatically, and
it will decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and
permits quicker starts in cold weather. Connect
the cord to a standard 110-115 Volt AC elec -
trical outlet with a grounded, three-wire exten -
sion cord.
The engine block heater must be plugged in at
least one hour to have an adequate warming
effect on the engine.
ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the
engine and drivetrain (transmission and axle) in
your vehicle.
Drive moderately during the first 300 miles
(500 km). After the initial 60 miles (100 km),
speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
While cruising, brief full-throttle acceleration
within the limits of local traffic laws contributes
to a good break-in. Wide-open throttle accelera-
tion in low gear can be detrimental and should
be avoided.
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.
CAUTION!
To prevent damage to the starter, do not
continuously crank the engine for more than
25 seconds at a time. Wait 60 seconds
before trying again.
WARNING!
Remember to disconnect the engine block
heater cord before driving. Damage to the
110-115 Volt electrical cord could cause
electrocution.
5

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STARTING AND OPERATING95
(Continued)
AUTOMATIC TRANSMISSION
Do not leave the key fob in or near the
vehicle, or in a location accessible to chil-
dren, and do not leave 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.
Be sure the parking brake is fully disen -
gaged before driving; failure to do so can
lead to brake failure and a collision.
Always fully apply the parking brake when
leaving your vehicle or it may roll and cause
damage or injury. Also, be certain to leave
the transmission in PARK. Failure to do so
may cause the vehicle to roll and cause
damage or injury.
CAUTION!
If the Brake System Warning Light remains on
with the parking brake released, a brake
system malfunction is indicated. Have the
brake system serviced by an authorized
dealer immediately.
WARNING!
(Continued)

WARNING!
It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher than
idle speed. If your foot is not firmly pressing
the brake pedal, the vehicle could accel -
erate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and your
foot is firmly pressing the brake pedal.
Unintended movement of a vehicle could
injure those in or near the vehicle. As with
all vehicles, you should never exit a vehicle
while the engine is running. Before exiting a
vehicle always come to a complete stop,
then apply the parking brake, shift the
transmission into PARK, turn the engine
OFF, and remove the ignition key. Once the
key is removed, the transmission is locked
in PARK, securing the vehicle against
unwanted movement.
When leaving the vehicle, always remove
the ignition key 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 transmission gear
selector.
Do not leave the ignition key in or near the
vehicle (or in a location accessible to chil -
dren). A child could operate power
windows, other controls, or move the
vehicle.
WARNING!
(Continued)

5

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96STARTING AND OPERATING
NOTE:
You must press and hold the brake pedal while
shifting out of PARK.
Key Ignition Park Interlock
This vehicle is equipped with a Key Ignition Park
Interlock which requires the transmission to be
in PARK before the ignition can be turned to the
LOCK/OFF (key removal) position. The key can
only be removed from the ignition when the igni -
tion is in the LOCK/OFF position, and once
removed the transmission is locked in PARK. NOTE:
If a malfunction occurs, the system will trap the
key in the ignition to warn you that this safety
feature is inoperable. The engine can be started
and stopped but the key cannot be removed
until you obtain service.
Brake/Transmission Shift Interlock System
This vehicle is equipped with a Brake Transmis
-
sion Shift Interlock System (BTSI) that holds the
transmission gear selector in PARK unless the
brakes are applied. To shift the transmission
out of PARK, the ignition must be turned to the
ON/RUN mode (engine running or not), and the
brake pedal must be pressed.
NOTE:
Swivel seats that are unlocked can also prevent
the transmission gear selector from being
moved out of the PARK position. To shift the
transmission out of the PARK position the first
time after cranking is allowed, ensure swivel
seats are locked in the forward facing position.
Six-Speed Automatic Transmission
The transmission gear position display (located
in the instrument cluster) indicates the trans -
mission gear range. You must press the brake
pedal to move the gear selector out of PARK
(Refer to “Brake/Transmission Shift Interlock
System” in this section). To drive, move the gear
selector from PARK or NEUTRAL to the DRIVE
position.
The electronically-controlled transmission
provides a precise shift schedule. The transmis -
sion electronics are self-calibrating; therefore,
the first few shifts on a new vehicle may be
somewhat abrupt. This is a normal condition,
and precision shifts will develop within a few
hundred miles (kilometers).
Gear SelectorCAUTION!
Shift into or out of PARK or REVERSE only
after the vehicle has come to a complete
stop.
Do not shift between PARK, REVERSE,
NEUTRAL, or DRIVE when the engine is
above idle speed.
Before shifting into any gear, make sure
your foot is firmly pressing the brake pedal.

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STARTING AND OPERATING97
(Continued)
Only shift from DRIVE to PARK or REVERSE
when the accelerator pedal is released and the
vehicle is stopped. Be sure to keep your foot on
the brake pedal when shifting between these
gears.
The transmission gear selector provides PARK,
REVERSE, NEUTRAL, DRIVE, and Electronic
Range Select (ERS) shift positions. Manual
downshifts can be made using the ERS shift
control. Moving the gear selector into the ERS
(-/+) position (beside the DRIVE position) acti -
vates ERS mode, displays the current gear in
the instrument cluster, and prevents automatic
upshifts beyond this gear. In ERS mode,
toggling the gear selector forward (-) or rear -
ward (+) will change the highest available gear.
Refer to "Electronic Range Select (ERS) Opera -
tion" in this section for further information.
NOTE:
If the gear selector cannot be moved to the
PARK, REVERSE, or NEUTRAL position (when
pushed forward) it is probably in the ERS (+/-)
position (beside the DRIVE position). In ERS
mode, the transmission gear limit (1, 2, 3, etc.)
is displayed in the instrument cluster. Move the gear selector to the right (into the DRIVE [D]
position) for access to PARK, REVERSE, and
NEUTRAL.
Gear Ranges
Do not depress the accelerator pedal when
shifting from PARK or NEUTRAL into another
gear range.
NOTE:

After selecting any gear range, wait a moment
to allow the selected gear to engage before
accelerating. This is especially important when
the engine is cold.
PARK (P)
This range supplements the parking brake by
locking the transmission. The engine can be
started in this range. Never attempt to use
PARK while the vehicle is in motion. Apply the
parking brake when exiting the vehicle in this
range.
When parking on a level surface, you may shift
the transmission into PARK first, and then apply
the parking brake. When parking on a hill, apply the parking brake
before shifting the transmission to PARK, other
-
wise the load on the transmission locking mech -
anism may make it difficult to move the gear
selector out of PARK. As an added precaution,
turn the front wheels toward the curb on a
downhill grade, and away from the curb on an
uphill grade.
When exiting the vehicle, always:
Apply the parking brake.
Shift the transmission into PARK.
Turn the engine OFF.
Remove the ignition key.
WARNING!
Never use the PARK position as a substi -
tute for the parking brake. Always apply the
parking brake fully when exiting the vehicle
to guard against vehicle movement and
possible injury or damage.
5

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98STARTING AND OPERATING
(Continued)
The following indicators should be used to
ensure that you have engaged the transmission
into the PARK position:
When shifting into PARK, firmly move the
gear selector all the way forward and to the
left until it stops and is fully seated.
Look at the transmission gear position
display and verify that it indicates the PARK
position (P).
With the brake pedal released, verify that the
gear selector will not move out of PARK.
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the gear selector out of PARK with the
brake pedal released. Make sure the trans -
mission is in PARK before exiting the
vehicle.
It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher than
idle speed. If your foot is not firmly pressing
the brake pedal, the vehicle could accel -
erate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and your
foot is firmly pressing the brake pedal.
Unintended movement of a vehicle could
injure those in or near the vehicle. As with
all vehicles, you should never exit a vehicle
while the engine is running. Before exiting a
vehicle always come to a complete stop,
then apply the parking brake, shift the
transmission into PARK, turn the engine
OFF, and remove the ignition key. Once the
key is removed, the transmission is locked
in PARK, securing the vehicle against
unwanted movement.
WARNING!
(Continued)

When exiting the vehicle, always remove
the ignition key 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 transmission gear
selector.
Do not leave the ignition key in or near the
vehicle (or in a location accessible to chil -
dren). A child could operate power
windows, other controls, or move the
vehicle.
WARNING!
(Continued)

CAUTION!
Before moving the transmission gear
selector out of PARK, you must turn the igni -
tion to the ON/RUN mode, and also press
the brake pedal. Otherwise, damage to the
gear selector could result.
DO NOT race the engine when shifting from
PARK or NEUTRAL into another gear range,
as this can damage the drivetrain.

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STARTING AND OPERATING99
REVERSE (R)
This range is for moving the vehicle backward.
Shift into REVERSE only after the vehicle has
come to a complete stop.
NEUTRAL (N)
Use this range when the vehicle is standing for
prolonged periods with the engine running. The
engine may be started in this range. Apply the
parking brake and shift the transmission into
PARK if you must exit the vehicle.
DRIVE (D)
This range should be used for most city and
highway driving. It provides the smoothest
upshifts and downshifts, and the best fuel
economy. The transmission automatically
upshifts through all forward gears. The DRIVE
position provides optimum driving characteris -
tics under all normal operating conditions. When frequent transmission shifting occurs
(such as when operating the vehicle under
heavy loading conditions, in hilly terrain, trav
-
eling into strong head winds, or while towing a
heavy trailer), select TOW/HAUL mode or use
the Electronic Range Select (ERS) shift control
(refer to “Electronic Range Select (ERS) Opera -
tion” in this section for further information) to
select a lower gear range. Under these condi -
tions, using a lower gear range will improve
performance and extend transmission life by
reducing excessive shifting and heat buildup.
During cold temperatures, transmission opera -
tion may be modified depending on engine and
transmission temperature as well as vehicle
speed. This feature improves warm up time of
the engine and transmission to achieve
maximum efficiency. Engagement of the torque
converter clutch is inhibited until the transmis -
sion fluid is warm refer to the “Note” under
“Torque Converter Clutch” in this section.
During extremely cold temperatures (-16°F
[-27°C] or below), operation may briefly be
limited to third gear only. Normal operation will
resume once the transmission temperature has
risen to a suitable level.WARNING!

Do not coast in NEUTRAL and never turn off
the ignition to coast down a hill. These are
unsafe practices that limit your response to
changing traffic or road conditions. You might
lose control of the vehicle and have a collision.

CAUTION!

Towing the vehicle, coasting, or driving for any
other reason with the transmission in
NEUTRAL can cause severe transmission
damage.

Refer to “Recreational Towing” in “Starting
And Operating” and “Towing A Disabled
Vehicle” in “In Case Of Emergency” for further
information.
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