RAM PROMASTER 2022 Repair Manual

GETTING TO KNOW YOUR INSTRUMENT PANEL59
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 precautionary 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 applicable. 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.

Brake Warning Light
This warning light monitors various brake
functions, including brake fluid level and
parking brake application. If the brake
light turns on it may indicate that the
parking brake is applied, that the brake fluid level
is low, or that there is a problem with the Anti-Lock
Brake System reservoir.
If the light remains on when the parking brake has
been disengaged, and the fluid level is at the full
mark on the master cylinder reservoir, it indicates
a possible brake hydraulic system malfunction or
that a problem with the Brake Booster has been
detected by the Anti-Lock Brake System (ABS) /
Electronic Stability Control (ESC) system. In this
case, the light will remain on until the condition has
been corrected. If the problem is related to the
brake booster, the ABS pump will run when
applying the brake, and a brake pedal pulsation
may be felt during each stop.
The dual brake system provides a reserve braking
capacity in the event of a failure to a portion of the
hydraulic system. A leak in either half of the dual
brake system is indicated by the Brake Warning
Light, which will turn on when the brake fluid level
in the master cylinder has dropped below a
specified level.
The light will remain on until the cause is corrected.
NOTE:The light may flash momentarily during sharp
cornering maneuvers, which change fluid level
conditions. The vehicle should have service
performed, and the brake fluid level checked.
If brake failure is indicated, immediate repair is
necessary.
Vehicles equipped with the Anti-Lock Brake System
(ABS) are also equipped with Electronic Brake
Force Distribution (EBD). In the event of an EBD
failure, the Brake Warning Light will turn on along
with the ABS Light. Immediate repair to the ABS
system is required.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from the OFF
position to the ON/RUN position. 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.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have
failed. It will take longer to stop the vehicle.
You could have a collision. Have the vehicle
checked immediately.
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60GETTING TO KNOW YOUR INSTRUMENT PANEL
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. A pop-up
appears on the instrument cluster display
showing which door is open.

NOTE:If the vehicle is moving and a door is opened, there
will also be a single chime.
Electric Power Steering (EPS) Fault
Warning Light
This warning light will turn on when
there's a fault with the EPS system
Ú page 78.
Electronic Throttle Control (ETC) Warning
Light

This warning light will illuminate to inform of
a problem with the 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
transmission 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.
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 Temperature Warning Light
This 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 light turns on while driving, safely pull over and
stop the vehicle. If the Air Conditioning (A/C) system is
on, turn it off. Also, shift the transmission into NEUTRAL
and idle the vehicle. If the temperature reading does
not return to normal, turn the engine off immediately
and call for service
Ú
page 194.

Hood Open Warning Light
The telltale turns on when the hood is not
properly closed. Along with the icon, an
image of the vehicle with an open hood
cap appears on the display.
Close the hood properly.
WARNING!
Continued operation with reduced assist could
pose a safety risk to yourself and others. Service
should be obtained as soon as possible.

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GETTING TO KNOW YOUR INSTRUMENT PANEL61
Rear Cargo Door Open Warning Light -
If Equipped
This warning light will illuminate when the
rear cargo door is open.
NOTE:This light will flash at a fast rate for approximately
15 seconds when the vehicle security system is
arming, and then will flash slowly until the vehicle
is disarmed.
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.
Seat Belt Reminder Warning Light
When the ignition is first placed in the
ON/RUN or MAR/ON/RUN position, if the
driver’s seat belt is unbuckled, a chime
will sound and the light will turn on. When
driving, if the driver or front passenger seat belt
remains unbuckled, the Seat Belt Reminder Light
will flash or remain on continuously and a chime
will sound Ú page 154.
Transmission Fault Warning Light

This light will illuminate (together with a
message in the instrument cluster display
and a buzzer) to indicate a transmission
fault. Contact an authorized dealer if the
message remains after restarting the engine.

Vehicle Security Warning Light —
If Equipped

This light will flash at a fast rate for
approximately 15 seconds when the vehicle
security system is arming, and then will flash
slowly until the vehicle is disarmed.

YELLOW WARNING LIGHTS
Adaptive Cruise Control (ACC) Fault
Warning Light — If Equipped
This warning light will illuminate to
indicate a fault in the ACC system.
Contact a local authorized dealer for
service Ú page 82.
Anti-Lock Brake System (ABS) Warning
Light
This light monitors the ABS. The light will
turn on when the ignition is placed in the
ON/RUN or MAR/ON/RUN position and
may stay on for as long as four seconds.
If the ABS light remains on or turns on while
driving, then the Anti-Lock portion of the brake
system is not functioning and service is required.
However, the conventional brake system will
continue to operate normally if the brake warning
light is not on.
If the ABS light is on, the brake system should be
serviced as soon as possible to restore the
benefits of Anti-Lock Brakes. If the ABS light
does not turn on when the ignition is placed in the
ON/RUN or MAR/ON/RUN position, have the light
inspected by an authorized dealer.
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62GETTING TO KNOW YOUR INSTRUMENT PANEL
Immobilizer Fail / VPS Electrical Alarm
Indicator Light
This telltale will illuminate when the
vehicle security system has detected an
attempt to break into the vehicle.
NOTE:After cycling the ignition to the ON/RUN position,
the Vehicle Security Warning Light could illuminate
if a problem with the system is detected. This
condition will result in the engine being shut off
after two seconds.
Electronic Stability Control (ESC) Warning
Light

The ESC Indicator Light in the instrument
cluster will come on when the ignition is
placed in the ON/RUN or MAR (ACC/ON/
RUN) position, and when ESC is activated.
It should turn off with the engine running. If the ESC
Indicator Light comes on continuously with the engine
running, a malfunction has been detected in the ESC
system. If this light remains on after several ignition
cycles, and the vehicle has been driven several miles
(kilometers) at speeds greater than 30 mph (48 km/h),
see an authorized dealer as soon as possible to have
the problem diagnosed and corrected.

The ESC OFF Indicator Light and the ESC Indi -
cator Light come on momentarily each time
the ignition is placed in the ON/RUN or MAR
(ACC/ON/RUN) position.
Each time the ignition is turned to ON/RUN or
MAR (ACC/ON/RUN), the ESC system will be on,
even if it was turned off previously.
The ESC system will make buzzing or clicking
sounds when it is active. This is normal; the
sounds will stop when ESC becomes inactive.
This light will come on when the vehicle is in an
ESC event.
Electronic Stability Control (ESC) OFF
Warning Light
This light indicates the ESC is off.
Each time the ignition is turned to ON/RUN or
MAR/ON/RUN, the ESC system will be on, even if it
was turned off previously.
Generic Warning Light
The Generic Warning Light will illuminate
if any of the following conditions occur:
Engine Oil Pressure Sensor Failure,
External Light Failure, Fuel Cut-Off
intervention or fail, Parking Sensor Failure,
Dynamic Steering Torque System Failure.
The telltale will remain on fixed in case of swivel
seat failure and on blinking in case of Air Bag
Warning Light Failure. Contact an authorized
dealer immediately for service.
Low Fuel Warning Light
When the fuel level reaches the low
threshold, this light will turn on and
remain on until fuel is added.

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GETTING TO KNOW YOUR INSTRUMENT PANEL63
Engine Check/Malfunction Indicator (MIL)
Warning Light
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 illuminate when the ignition is in the ON/RUN
position before engine start. If the bulb does not
come on when turning the ignition switch from OFF
to ON/RUN, have the condition checked promptly.
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.

Service Active Lane Management Warning
Light — If Equipped
This warning light will illuminate when the
Active Lane Management system is not
operating and requires service. Please
see an authorized dealer.
Service Forward Collision Warning (FCW)
Light — If Equipped
This warning light will illuminate to
indicate a fault in the FCW System.
Contact an authorized dealer for service.
Service Required/Call For Service Warning
Light

This warning light will illuminate when
service is needed. A pop-up will appear in
the display to signal the need for service.
Contact an authorized dealer as soon as
possible.

Tire Pressure Monitoring System (TPMS)
Warning Light

The warning light switches on and a message
is displayed to indicate that the tire pressure
is lower than the recommended value and/
or that slow pressure loss is occurring. In
these cases, optimal tire duration and fuel
consumption may not be guaranteed.

Should one or more tires be in the condition
mentioned above, the display will show the
indications corresponding to each tire.
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.

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64GETTING TO KNOW YOUR INSTRUMENT PANEL

Each tire, including the spare (if provided), should be
checked monthly when cold and inflated to the inflation
pressure recommended by the vehicle manufacturer
on the vehicle placard or tire inflation pressure label.
If your vehicle has tires of a different size than the size
indicated on the vehicle placard or tire inflation
pressure label, you should determine the proper tire
inflation pressure for those tires.
As an added safety feature, your vehicle has been
equipped with a TPMS that illuminates a low tire
pressure telltale when one or more of your tires is
significantly underinflated. Accordingly, when the low
tire pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate them
to the proper pressure. Driving on a significantly
underinflated tire causes the tire to overheat and can
lead to tire failure. Underinflation also reduces fuel
efficiency and tire tread life, and may affect the
vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver’s
responsibility to maintain correct tire pressure,
even if underinflation has not reached the level to
trigger illumination of the TPMS low tire pressure
telltale.

Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system
is not operating properly. The TPMS malfunction
indicator is combined with the low tire pressure telltale.
When the system detects a malfunction, the telltale will
flash for approximately one minute and then remain
continuously illuminated. This sequence will continue
upon subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction indicator
is illuminated, the system may not be able to detect
or signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of reasons,
including the installation of replacement or alternate
tires or wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the TPMS
malfunction telltale after replacing one or more tires or
wheels on your vehicle to ensure that the replacement
or alternate tires and wheels allow the TPMS to
continue to function properly.

Towing Hook Breakdown Warning Light —
If Equipped
This light illuminates when there is a
failure with the tow hook. Contact an
authorized dealer for service.
WARNING!
Do not continue driving with one or more flat
tires as handling may be compromised. Stop the
vehicle, avoiding sharp braking and steering. If a
tire puncture occurs, repair immediately using
the dedicated tire repair kit and contact an
authorized dealer as soon as possible.
CAUTION!

The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system
operation or sensor damage may result when using
replacement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage. Using aftermarket tire sealants may
cause the Tire Pressure Monitoring System (TPMS)
sensor to become inoperable. After using an
aftermarket tire sealant it is recommended that you
take your vehicle to an authorized dealer to have
your sensor function checked.

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GETTING TO KNOW YOUR INSTRUMENT PANEL65
Transmission Temperature Warning Light
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.
YELLOW INDICATOR LIGHTS
Forward Collision Warning (FCW) OFF
Indicator Light — If Equipped
This indicator light will illuminate when
you switch FCW off or when driving
conditions obscure the sensor with snow,
heavy rain, or sun.
TOW/HAUL Indicator Light

This indicator light will illuminate when
TOW/HAUL mode is selected
Ú
page 110.

Keyless System Failure Light
The telltale will illuminate in the event of
keyless system failure.
Contact an authorized dealer as soon as possible.
Rain Sensor Failure Light
The telltale will illuminate in the case of
failure of the automatic windshield wiper.
Contact an authorized dealer as soon as
possible.
Exterior Lights Failure Light
The telltale will illuminate to indicate a
failure on the following lights: Daytime
Running Lights (DRLs) / parking lights /
trailer turn signal indicators (if present) /
trailer lights (if present) / side lights / turn signal
indicators / rear fog light / reversing light / brake
lights / license plate lights.
The failure may be caused by a blown bulb, a blown
protection fuse, or an interruption of the electrical
connection. Replace the bulb or the relevant fuse.
Contact an authorized dealer.
Fuel Cutoff Failure Light — If Equipped
This light will illuminate if there is a fuel
cutoff failure. If this light illuminates, take
it to an authorized dealer and have them
inspect it.
GREEN INDICATOR LIGHTS
Active Lane Management Indicator Light —
If Equipped

The Active Lane Management indicator light
illuminates solid green when both lane
markings have been detected and the
system is “armed” and ready to provide
visual and torque warnings if an unintentional lane
departure occurs
Ú
page 102.

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.
CAUTION!
Continuous driving with the Transmission
Temperature Warning Light illuminated will
eventually cause severe transmission damage
or transmission failure.
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66GETTING TO KNOW YOUR INSTRUMENT PANEL
Active Speed Limiter Set Indicator Light —
If Equipped With A Premium Instrument
Cluster
This indicator light will illuminate when
the Active Speed Limiter is on and set to
a specific speed Úpage 79.
Automatic High Beam Indicator Light —
If Equipped
This indicator shows that the automatic
high beam headlights are on Úpage 32.
Cruise Control Indicator Light —
If Equipped

This indicator light will illuminate when the
cruise control is activated
Ú
page 80.

NOTE:There will be no change in the indicator light when
the desired speed is set.
Front Fog Indicator Light — If Equipped
This indicator light will illuminate when
the front fog lights are on Ú page 32.
Parking/Headlights On Indicator Light
This indicator light will illuminate when
the parking lights or headlights are
turned on Úpage 32.
Turn Signal Indicator/Hazard Warning
Lights
The turn signal arrows will flash
independently when left or right turn
signals are selected. Turn signals can be
activated when the multifunction lever is
moved down (left) or up (right).
Pressing the Hazard Warning Flashers button will
illuminate both right and left turn signal arrows
simultaneously Ú page 176.
NOTE:Check for an inoperative outside light bulb if either
indicator flashes at a rapid rate.
BLUE INDICATOR LIGHTS
High Beam Indicator Light
This indicator light will illuminate to
indicate that the high beam headlights
are on. With the low beams activated,
push the multifunction lever forward
(toward the front of the vehicle) to turn on the high
beams. Pull the multifunction lever rearward
(toward the rear of the vehicle) to turn off the high
beams. If the high beams are off, pull the lever
toward you for a temporary high beam on, “flash to
pass” scenario.
WHITE INDICATOR LIGHTS
Adaptive Cruise Control (ACC) Set With
Target Indicator Light — If Equipped
This will display when the ACC is set and
a vehicle in front is detected Ú page 82.

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GETTING TO KNOW YOUR INSTRUMENT PANEL67
Active Lane Management Indicator Light —
If Equipped
When the Active Lane Management
system is ON, but not armed, the Active
Lane Management indicator light
illuminates solid white. This occurs when
only left, right, or neither lane line has been
detected. If a single lane line is detected, the
system is ready to provide only visual warnings if
an unintentional lane departure occurs on the
detected lane line Ú page 102.
Active Speed Limiter Ready Indicator
Light — If Equipped With A Premium
Instrument Cluster
This light will illuminate when the Active
Speed Limiter has been turned on, but
not set Úpage 79.
Speed Warning Indicator Light —
If Equipped
When Set Speed Warning is turned on,
the speed warning telltale will illuminate
in the instrument cluster with a number
matching the set speed. When the set
speed is exceeded, a single chime will sound along
with pop-up message of speed warning exceeded.
Speed Warning can be turned on and off in the
instrument cluster display Ú page 55.
NOTE:The number “55” is only an example of a speed
that can be set.
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.
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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68GETTING TO KNOW YOUR INSTRUMENT PANEL
ONBOARD DIAGNOSTIC SYSTEM
(OBD II) C
YBERSECURITY
Your vehicle is required to have an 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 Ú page 119.
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
Maintenance (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.
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.
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. Switch the ignition to the ON position, but do not crank 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 position, 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 ignition 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
illuminated 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 authorized 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.
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, infor -
mation stored in your vehicle systems,
including personal information.

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