2021 RAM PROMASTER battery

38GETTING TO KNOW YOUR VEHICLE
(Continued)
NOTE:
Do not connect devices with power higher than
180 W to the socket. Do not damage the socket
by using unsuitable adapters.
Power Outlet Fuses — Under Hood
AUXILIARY SWITCHES — IF EQUIPPED
Your vehicle may be equipped with two auxiliary
switches located on the instrument panel to the
left of the steering column which can be used to
power various electronic devices. Connections
to the switches are found in the right central
pillar fuse panel at the base of the passenger
side B-pillar.
Auxiliary Upfitter Switches

Auxiliary Switch 1 is configured to constant
battery feed, while Auxiliary Switch 2 is
configured to ignition feed.
For further information on using the auxiliary
switches, please refer to the Ram Body Builders
Guide by accessing www.rambodybuilder.com
and choosing the appropriate links.
1 — F14 Fuse 20 Amp Yellow Front Power Outlet
2 — F09 Fuse 15 Amp Blue Rear Power Outlet
WARNING!
To avoid serious injury or death:
Only devices designed for use in this type of
outlet should be inserted into any 12 Volt
outlet.
Do not touch with wet hands.
Close the lid when not in use and while
driving the vehicle.
If this outlet is mishandled, it may cause an
electric shock and failure.
CAUTION!
Many accessories that can be plugged in
draw power from the vehicle's battery, even
when not in use (i.e., cellular phones, etc.).
Eventually, if plugged in long enough, the
vehicle's battery will discharge sufficiently
to degrade battery life and/or prevent the
engine from starting.
Accessories that draw higher power (i.e.,
coolers, vacuum cleaners, lights, etc.) will
degrade the battery even more quickly.
Only use these intermittently and with
greater caution.
After the use of high power draw accesso -
ries, or long periods of the vehicle not being
started (with accessories still plugged in),
the vehicle must be driven a sufficient
length of time to allow the generator to
recharge the vehicle's battery.
WARNING! (Continued)

21_VF_OM_EN_USC_t.book Page 38

GETTING TO KNOW YOUR INSTRUMENT PANEL47
NOTE:
The range depends on several factors: driving
style, type of route (freeway, residential, moun-
tain 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.
PERSONAL SETTINGS
(C
USTOMER-PROGRAMMABLE
F
EATURES)
Speed Beep
Buzzer Volume
Seat Belt Buzzer (Just Available After SBR
Disable Made By CHR Service)
Exit Menu
note:
If equipped, some customer programmable
features will display in the Uconnect system
Ú page 89.
TRIP COMPUTER
The Trip Computer is located in the instrument
cluster. It features a driver interactive display
(displays information such as trip information,
range, fuel consumption, average speed, and
travel time).
NOTE:
The Uconnect System also has a Trip Computer
display and menus to customize the informa -
tion displayed in the cluster Ú page 89.
TRIP BUTTON
The TRIP button , located on the right steering
column stalk, can be used to display and to
reset the previously described values.
A short button push displays the different
values.
A long button push resets the system and
then starts a new trip.
New Trip
To reset:
Push and hold the TRIP button to reset the
system manually.

When the “Trip distance” reaches
99999.9 miles or kilometers or when the
“Travel time” reaches 999.59 (999 hours and
59 minutes), the system is reset automatically.

Disconnecting/Reconnecting the battery
resets the system.
NOTE:
If the reset operation occurs in the presence of
the screens concerning Trip A or Trip B, only the
information associated with Trip A or Trip B
functions will be reset.
3

21_VF_OM_EN_USC_t.book Page 47

48GETTING TO KNOW YOUR INSTRUMENT PANEL
Start Of Trip Procedure
With the ignition on, push and hold the TRIP
button for over two seconds to reset trip
information.
Exit Trip
To exit the Trip function, push the TRIP button
until all the trip menu items have been
displayed and the display returns to the main
menu.
TRIP FUNCTIONS
Both trip functions are resettable (reset — start
of new trip).
Trip A/Trip B
Trip Distance
Average Fuel Consumption
Average Speed
Travel Time (Driving Time)
NOTE:
“Trip B” functions may be excluded (see “Trip B
Data”). “Range” and “Instantaneous Fuel
Consumption” cannot be 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 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
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 164.
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.
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.

21_VF_OM_EN_USC_t.book Page 48

56GETTING TO KNOW YOUR INSTRUMENT PANEL
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.

21_VF_OM_EN_USC_t.book Page 56

58STARTING AND OPERATING
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
electrical outlet with a grounded, three-wire
extension 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
acceleration in low gear can be detrimental and
should be avoided.
The engine oil installed in the engine at the
factory is a high-quality energy conserving type
lubricant. Oil changes should be consistent with
anticipated climate conditions under which
vehicle operations will occur. For the
recommended viscosity and quality grades see
Ú
page 268.
NOTE:
A new engine may consume some oil during its
first few thousand miles (kilometers) of opera -
tion. This should be considered a normal part of
the break-in and not interpreted as a problem.
Please check your oil level with the engine oil
indicator often during the break-in period. Add
oil as required.
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 Úpage 203.
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! (Continued)
WARNING!
Remember to disconnect the engine block
heater cord before driving. Damage to the
110-115 Volt electrical cord could cause
electrocution.
CAUTION!
Never use Non-Detergent Oil or Straight
Mineral Oil in the engine or damage may
result.

21_VF_OM_EN_USC_t.book Page 58

84STARTING AND OPERATING

Seven-Pin Connector

TOWING TIPS
Before towing, practice turning, stopping, and
backing up the trailer in an area located away
from heavy traffic.
Automatic Transmission
The DRIVE range can be selected when towing.
The transmission controls include a drive
strategy to avoid frequent shifting when towing.
However, if frequent shifting does occur while in
DRIVE, select TOW/HAUL mode or select a lower
gear range (using the Electronic Range Select
(ERS) shift control).
NOTE:
Using TOW/HAUL mode or selecting a lower
gear range (using the ERS shift control) while
operating the vehicle under heavy loading
conditions will improve performance and
extend transmission life by reducing excessive
shifting and heat build-up. This action will also
provide better engine braking.
When towing a loaded trailer up steep grades at
low speeds, holding your vehicle in FIRST gear
(using the ERS shift control) can help to avoid
transmission overheating.
Tow/Haul Mode
To reduce potential for automatic transmission
overheating, activate TOW/HAUL mode when
driving in hilly areas, or select a lower gear
range (using the Electronic Range Select (ERS)
shift control) on more severe grades.
Cruise Control — If Equipped
Do not use on hilly terrain or with heavy
loads.
When using the Cruise Control, if you experi -
ence speed drops greater than 10 mph
(16 km/h), disengage until you can get back
to cruising speed.
Use Cruise Control in flat terrain and with
light loads to maximize fuel efficiency.
1 — Battery
2 — Backup Lamps
3 — Right Stop/Turn
4 — Electric Brakes
5 — Ground
6 — Left Stop/Turn
7 — Tail Lamp

21_VF_OM_EN_USC_t.book Page 84

SAFETY173
Air Bag System Components
Occupant Restraint Controller (ORC)
Air Bag Warning Light
Steering Wheel and Column
Instrument Panel
Driver and Front Passenger Air Bags
Seat Belt Buckle Switch
Supplemental Side Air Bags
Front and Side Impact Sensors
Seat Belt Pretensioners
Air Bag Warning Light
The Occupant Restraint Controller
(ORC) monitors the readiness of the
electronic parts of the air bag system
whenever the ignition switch is in the
AVV/START or MAR/ACC/ON/RUN position. If
the ignition switch is in the STOP/OFF/LOCK
position the air bag system is not on and the air
bags will not inflate. The ORC contains a backup power supply
system that may deploy the air bag system even
if the battery loses power or it becomes
disconnected prior to deployment.

The ORC turns on the Air Bag Warning Light in the
instrument panel for approximately four to eight
seconds for a self-check when the ignition switch
is in the MAR/ACC/ON/RUN position. After the
self-check, the Air Bag Warning Light will turn off.
If the ORC detects a malfunction in any part of the
system, it turns on the Air Bag Warning Light,
either momentarily or continuously. A single
chime will sound to alert you if the light comes on
again after initial startup.

The ORC also includes diagnostics that will
illuminate the instrument panel Air Bag Warning
Light if a malfunction is detected that could
affect the air bag system. The diagnostics also
record the nature of the malfunction. While the
air bag system is designed to be maintenance
free, if any of the following occurs, have an
authorized dealer service the air bag system
immediately.
The Air Bag Warning Light does not come on
during the four to eight seconds when the
ignition switch is first in the MAR/ACC/ON/
RUN position.
The Air Bag Warning Light remains on after
the four to eight-second interval.
The Air Bag Warning Light comes on intermit
-
tently or remains on while driving.
NOTE:
If the speedometer, tachometer, or any engine
related gauges are not working, the Occupant
Restraint Controller (ORC) may also be
disabled. In this condition the air bags may not
be ready to inflate for your protection. Have an
authorized dealer service the air bag system
immediately.
WARNING!
Ignoring the Air Bag Warning Light in your
instrument panel could mean you won’t have
the air bag system to protect you in a
collision. If the light does not come on as a
bulb check when the ignition is first turned
on, stays on after you start the vehicle, or if it
comes on as you drive, have an authorized
dealer service the air bag system
immediately.
6

21_VF_OM_EN_USC_t.book Page 173

SAFETY179
(Continued)
Fuel Cut Off Switch
Your vehicle is equipped with a Fuel Cut Off
switch. In the event of an accident, if the
communication network remains intact, and
the power remains intact, depending on the
nature of the event, the Fuel Cut Off Switch may
perform the following functions:
Cut off fuel to the engine and turn off the
engine.
Flash hazard lights as long as the battery has
power or until the hazard light button is
pressed. The hazard lights can be deacti -
vated by pressing the hazard light button.
Turn on the interior lights, which remain on
as long as the battery has power.
Unlock the power door locks.
NOTE:
After an accident, remember to cycle the igni -
tion to the STOP (OFF/LOCK) position and
remove the key from the ignition switch to avoid
draining the battery. Carefully check the vehicle
for fuel leaks in the engine compartment and on
the ground near the engine compartment and
fuel tank before resetting the system and
starting the engine. If there are no fuel leaks or damage to the vehicle electrical devices (e.g.
headlights) after an accident, reset the Fuel Cut
Off Switch by following the procedure described
below. If you have any doubt, contact an autho
-
rized dealer.
Fuel Cut Off Switch Reset Procedure
In order to reset the Fuel Cut Off Switch after an
event push the “A” Button located underneath
the instrument panel on the passenger side.

Fuel Cut Off Switch

Maintaining Your Air Bag System
WARNING!
If, after an accident, you smell fuel or see
leaks from the fuel system, do not reset the
Fuel Cut Off Switch to avoid the risk of fire.
Before resetting the Fuel Cut Off Switch,
carefully check for fuel leaks or damage to
the vehicle electrical devices (e.g.
headlights).
WARNING!
Modifications to any part of the air bag
system could cause it to fail when you need
it. You could be injured if the air bag system
is not there to protect you. Do not modify
the components or wiring, including adding
any kind of badges or stickers to the
steering wheel hub trim cover or the upper
passenger side of the instrument panel. Do
not modify the front bumper, vehicle body
structure, or add aftermarket side steps or
running boards.6

21_VF_OM_EN_USC_t.book Page 179