2022 RAM PROMASTER warning light

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.

3

22_VF_OM_EN_USC_t.book Page 63

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.

22_VF_OM_EN_USC_t.book Page 64

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.
3

22_VF_OM_EN_USC_t.book Page 65

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.

22_VF_OM_EN_USC_t.book Page 66

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.
3

22_VF_OM_EN_USC_t.book Page 67

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.

22_VF_OM_EN_USC_t.book Page 68

72STARTING AND OPERATING
(Continued) If exceptional circumstances should make it
necessary to engage the parking brake while the
vehicle is in motion, maintain upward pressure on
the EPB switch for as long as engagement is
desired. The BRAKE telltale light will illuminate,
and a continuous chime will sound. The rear stop
lamps will also be illuminated automatically while
the vehicle remains in motion.
To disengage the parking brake while the vehicle is
in motion, release the switch. If the vehicle is
brought to a complete stop using the parking
brake, when the vehicle reaches approximately
3 mph, (5 km/h) the parking brake will remain
engaged. In the unlikely event of a malfunction of the EPB
system, a yellow EPB fault light will illuminate. This
may be accompanied by the BRAKE telltale light
flashing. In this event, urgent service of the EPB
system is required. Do not rely on the parking
brake to hold the vehicle stationary.
Auto Park Brake
The Electric Park Brake (EPB) can be programmed
to be applied automatically whenever the vehicle is
at a standstill and the automatic transmission is
placed in PARK. Auto Park Brake is enabled and
disabled by customer selection through the
Customer Programmable Features section of the
Uconnect Settings Ú
page 130.
Any single Auto Park Brake application can be
bypassed by pushing the EPB switch to the release
position while the transmission is placed in PARK.
WARNING!
Never use the PARK position as a substitute
for the parking brake. Always apply the
parking brake fully when parked to guard
against vehicle movement and possible injury
or damage.
When exiting the vehicle, always remove the
key fob from the ignition 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 unattended is dangerous for a
number of reasons. A child or others could be seri -
ously 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 a vehicle equipped with Keyless
Enter ‘n Go™ in the ACC or ON/RUN position.
A child could operate power windows, other
controls, or move the vehicle.
Be sure the parking brake is fully disengaged
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 allow 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!WARNING!
Driving the vehicle with the parking brake
engaged, or repeated use of the parking brake
to slow the vehicle, may cause serious damage
to the brake system. Be sure the parking brake
is fully disengaged before driving; failure to do
so can lead to brake failure and a collision.

22_VF_OM_EN_USC_t.book Page 72

STARTING AND OPERATING77
When frequent transmission shifting occurs (such
as when operating the vehicle under heavy loading
conditions, in hilly terrain, traveling into strong
head winds, or while towing a heavy trailer), select
TOW/HAUL mode or use the Electronic Range
Select (ERS) shift control to select a lower gear
range Úpage 77. Under these conditions, using a
lower gear range will improve performance and
extend transmission life by reducing excessive
shifting and heat buildup.
During cold temperatures, transmission operation
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. 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.
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 remains in THIRD gear
regardless of which forward gear is selected.
PARK, REVERSE, and NEUTRAL will continue to operate. The Malfunction Indicator Light (MIL) may
be illuminated. Transmission Limp Home Mode
allows the vehicle to be driven to an authorized
dealer for service without damaging the
transmission.
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 an authorized dealer at
your earliest possible convenience. An authorized
dealer has diagnostic equipment to assess the
condition of your transmission. If the transmission
cannot be reset, authorized dealer service is
required.
Electronic Range Select (ERS) Operation
The ERS shift control allows the driver to
select the max gear limit. For example, if you
set the transmission gear limit to FOURTH gear, the
transmission will not shift above FOURTH gear, but
will shift through the lower gears normally.
You can switch between DRIVE and ERS mode at
any vehicle speed. When the gear selector is in the
DRIVE position, the transmission will operate
automatically, shifting between all available gears.
Moving the gear selector to the ERS position
(beside DRIVE) will activate ERS mode, display the
current gear in the instrument cluster, and set that
gear as the max gear limit. Once in ERS mode,
moving the gear selector forward “-” or rearward
“+” will change the max gear limit.
NOTE:The transmission will still continue to use the
optimal highest gear, for the current driving condi -
tions, within the selected gear range limit.
To exit ERS mode, simply return the gear selector
to the DRIVE position.
WARNING!
Do not downshift for additional engine braking
on a slippery surface. The drive wheels could
lose their grip and the vehicle could skid,
causing a collision or personal injury.
4

22_VF_OM_EN_USC_t.book Page 77