2020 Ram ProMaster City service indicator

84 GETTING TO KNOW YOUR INSTRUMENT PANEL
NOTE:
The range depends on several factors: driving style, type of
route (freeway, residential, mountain roads, etc.), conditions
of use of the vehicle (load, tire pressure, etc.). Trip planning
must take into account the above notes.
Travel Distance
This value shows the distance covered since the last reset.
Average Fuel Consumption
This value shows the approximate average consumption
since the last reset.
Current Fuel Consumption
This indicates the fuel consumption. The value is constantly
updated. The message “----” will appear on the display if the
vehicle is parked with the engine running.
Average Speed
This value shows the vehicle's average speed as a function of
the overall time elapsed since the last reset.
Travel Time
This value shows the time elapsed since the last reset.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 precau-
tionary 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 appli -
cable. 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
Air Bag Warning Light

This light will turn on for four to eight seconds as a bulb
check when the ignition is placed in the ON/RUN or
MAR/ON/RUN position. 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.
This light will illuminate with a single chime when a fault with
the Air Bag Warning Light has been detected, it will stay on until
the fault is cleared. If the light comes on intermittently or
remains on while driving, have an authorized dealer service the
vehicle immediately.

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86 GETTING TO KNOW YOUR INSTRUMENT PANEL

Operation of the Brake Warning Light can be checked by turning
the ignition switch from the OFF position to the ON/RUN posi-
tion. The light should illuminate for approximately two seconds.
The light should then turn off unless the parking brake is applied
or a brake fault is detected. If the light does not illuminate, have
the light inspected by an authorized dealer.

The light also will turn on when the parking brake is applied
with the ignition switch in the ON/RUN position.
NOTE:
This light shows only that the parking brake is applied. It
does not show the degree of brake application.
Battery Charge Warning Light
This warning light will illuminate when the battery
is not charging properly. If it stays on while the
engine is running, there may be a malfunction with
the charging system. Contact an authorized dealer as soon as
possible.
This indicates a possible problem with the electrical system
or a related component. Door Open Warning Light
This indicator will illuminate when one or more
door(s) are not fully closed.
NOTE:
If the vehicle is moving and a door is opened, there will also
be a single chime.
Electronic Throttle Control (ETC) Warning Light This warning light will illuminate to inform of a
problem with the Electronic Throttle Control (ETC)
system. If a problem is detected while the vehicle is
running, the light will either stay on or flash depending on
the nature of the problem. Cycle the ignition when the
vehicle is safely and completely stopped and the transmis -
sion is placed in the PARK (P) position. The light should turn
off. If the light remains on with the vehicle running, your
vehicle will usually be drivable; however, see an authorized
dealer for service as soon as possible.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 87
If the light continues to flash when the vehicle is running,
immediate service is required and you may experience
reduced performance, an elevated/rough idle, or engine
stall and your vehicle may require towing. The light will
come on when the ignition is placed in the ON/RUN or
MAR/ON/RUN position and remain on briefly as a bulb
check. If the light does not come on during starting, have the
system checked by an authorized dealer.
Engine Coolant Temperature Warning Light This warning light warns of an overheated engine
condition. If the engine coolant temperature is too
high, this indicator will illuminate and a single
chime will sound. If the temperature reaches the upper limit,
a continuous chime will sound for four minutes or until the
engine is able to cool, whichever comes first.
If the light turns on while driving, safely pull over and stop
the vehicle. If the A/C system is on, turn it off. Also, shift the
transmission into NEUTRAL (N) and idle the vehicle. If the
temperature reading does not return to normal, turn the
engine off immediately and call for service.
Refer to “If Your Engine Overheats” in “In Case Of Emer -
gency” for further information. Oil Pressure Warning Light
This warning light will illuminate to indicate low
engine oil pressure. If the light turns on while
driving, stop the vehicle, shut off the engine as soon
as possible, and contact an authorized dealer. A chime will
sound when this light turns on.
Do not operate the vehicle until the cause is corrected. This
light does not indicate how much oil is in the engine. The
engine oil level must be checked under the hood.
Transmission Temperature Warning Light — If Equipped
This warning light will illuminate to warn of a high
transmission fluid temperature. This may occur with
strenuous usage such as trailer towing. If this light
turns on, stop the vehicle and run the engine at idle or
slightly faster, with the transmission in PARK (P) or
NEUTRAL (N), until the light turns off. Once the light turns
off, you may continue to drive normally.
WARNING!
If you continue operating the vehicle when the
Transmission Temperature Warning Light is illuminated
you could cause the fluid to boil over, come in contact
with hot engine or exhaust components and cause a fire.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 91
Engine Check/Malfunction Indicator Warning Light (MIL)
The Engine Check/Malfunction Indicator Light
(MIL) is a part of an Onboard Diagnostic System
called OBD II that monitors engine and automatic
transmission control systems. This warning light will illu -
minate when the ignition is in the ON/RUN position before
engine start. After placing the ignition to the ON/RUN
position, if there is a problem with the Sentry Key System,
the Vehicle Security Light will turn on. This condition will
result in the engine being shut off after two seconds. If the
bulb does not come on when turning the ignition switch
from OFF to ON/RUN, have the condition checked
promptly.

NOTE:
This warning light will illuminate when the vehicle security
alarm system has detected an attempt to break into the
vehicle.
Certain conditions, such as a loose or missing gas cap, poor
quality fuel, etc., may illuminate the light after engine start.
The vehicle should be serviced if the light stays on through
several typical driving styles. In most situations, the vehicle
will drive normally and will not require towing. When the engine is running, the MIL may flash to alert
serious conditions that could lead to immediate loss of
power or severe catalytic converter damage. The vehicle
should be serviced by an authorized dealer as soon as
possible if this occurs.
WARNING!
A malfunctioning catalytic converter, as referenced
above, can reach higher temperatures than in normal
operating conditions. This can cause a fire if you drive
slowly or park over flammable substances such as dry
plants, wood, cardboard, etc. This could result in death
or serious injury to the driver, occupants or others.
CAUTION!
Prolonged driving with the Malfunction Indicator Light
(MIL) on could cause damage to the vehicle control
system. It also could affect fuel economy and
driveability. If the MIL is flashing, severe catalytic
converter damage and power loss will soon occur.
Immediate service is required.3
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94 GETTING 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 emissions, 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
government 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 diagnosis and service of
your vehicle and emissions system.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.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 95
For further information, refer to “Cybersecurity” in
“Multimedia”.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass an
inspection of your vehicle's emissions control system. Failure
to pass could prevent vehicle registration.For states that require an Inspection and Mainte -
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not on
when the engine is running, and that the OBD II system is
ready for testing.
Normally, the OBD II system will be ready. The OBD II
system may not be ready if your vehicle was recently
serviced, recently had a depleted battery or a battery
replacement. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
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
accident involving serious injury or death.
• Access, or allow others to access, information stored in your vehicle systems, including personal
information.
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96 GETTING TO KNOW YOUR INSTRUMENT PANEL
Your vehicle has a simple ignition actuated test, which you
can use prior to going to the test station. To check if your
vehicle's OBD II system is ready, you must do the following:
1. Cycle the ignition switch to the ON position, but do notcrank or start the engine.
NOTE:
If you crank or start the engine, you will have to start this test
over.
2. As soon as you cycle the ignition switch to the ON posi -
tion, you will see the “Malfunction Indicator Light (MIL)”
symbol come on as part of a normal bulb check.
3. Approximately 15 seconds later, one of two things will happen:
• The MIL will flash for about 10 seconds and then return to being fully illuminated until you turn OFF the igni -
tion or start the engine. This means that your vehicle's
OBD II system is not ready and you should not proceed
to the I/M station.
• The MIL will not flash at all and will remain fully illumi
-
nated until you place the ignition in the off position or
start the engine. This means that your vehicle's OBD II
system is ready and you can proceed to the I/M station.

If your OBD II system is not ready, you should see an autho -
rized dealer or repair facility. If your vehicle was recently
serviced or had a battery failure or replacement, you may
need to do nothing more than drive your vehicle as you
normally would in order for your OBD II system to update.
A recheck with the above test routine may then indicate that
the system is now ready.
Regardless of whether your vehicle's OBD II system is ready
or not, if the MIL is illuminated during normal vehicle
operation you should have your vehicle serviced before
going to the I/M station. The I/M station can fail your
vehicle because the MIL is on with the engine running.
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STARTING AND OPERATING 169
If the transmission becomes extremely hot, the “Transmis-
sion Temperature Warning Light” may illuminate and the
transmission may operate differently until the transmission
cools down.
During cold temperatures, transmission operation may be
modified depending on engine and transmission tempera -
ture 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, and
shifts into 8th or 9th gear, are inhibited until the transmission
fluid is warm refer to the “Note” under “Torque Converter
Clutch” in this section. Normal operation will resume once
the transmission temperature has risen to a suitable level.
Transmission Limp Home Mode
Transmission function is monitored electronically for
abnormal conditions. If a condition is detected that could
result in transmission damage, Transmission Limp Home
Mode is activated. In this mode, the transmission may
operate only in a fixed gear, or may remain in NEUTRAL.
The Malfunction Indicator Light (MIL) may be illuminated.
Limp Home Mode may allow the vehicle to be driven to an
authorized dealer for service without damaging the trans -
mission. In the event of a momentary problem, the transmission can
be reset to regain all forward gears by performing the
following steps:
1. Stop the vehicle.
2. Shift the transmission into PARK.
3. Turn the ignition OFF.
4. Wait approximately 10 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the problem is no
longer detected, the transmission will return to normal
operation.
NOTE:
Even if the transmission can be reset, we recommend that
you visit your authorized dealer at your earliest possible
convenience. Your authorized dealer has diagnostic equip -
ment to assess the condition of your transmission. If the
transmission cannot be reset, authorized dealer service is
required.
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