2021 RAM PROMASTER CITY brake sensor

3
INSTRUMENT CLUSTER DISPLAY ......................44 Location And Controls ................................. 45
Change Engine Oil — If Equipped................ 46
Instrument Cluster Display Menu Items..... 46
TRIP COMPUTER ...................................................47
Trip Button.................................................... 48
Trip Functions ............................................. 48
Values Displayed ......................................... 49
WARNING LIGHTS AND MESSAGES ..................49
Red Warning Lights...................................... 49
Yellow Warning Lights ................................. 52
Green Indicator Lights ................................. 55
Blue Indicator Lights .................................... 56
ONBOARD DIAGNOSTIC SYSTEM — OBD II .......56
Onboard Diagnostic System (OBD II)
Cybersecurity................................................ 56
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ...........................................................57
STARTING AND OPERATING
STARTING THE ENGINE .......................................58
Automatic Transmission .............................. 58
Normal Starting ............................................ 58
Cold Weather Operation ............................. 58
Extended Park Starting................................ 58
If Engine Fails To Start ................................ 59
After Starting ................................................ 59
ENGINE BLOCK HEATER — IF EQUIPPED ...........59
ENGINE BREAK-IN RECOMMENDATIONS .........60
PARKING BRAKE .................................................60 AUTOMATIC TRANSMISSION ............................. 62
Key Ignition Park Interlock .......................... 62
Brake/Transmission Shift Interlock (BTSI)
System ......................................................... 63 Nine-Speed Automatic Transmission ........ 63
POWER STEERING .............................................. 67
Power Steering Fluid Check ....................... 68
CRUISE CONTROL — IF EQUIPPED ..................... 68
To Activate.................................................... 69
To Set A Desired Speed............................... 69
To Vary The Speed Setting .......................... 69
To Accelerate For Passing ........................... 69
To Resume Speed ....................................... 70
To Deactivate .............................................. 70
PARKSENSE REAR PARK ASSIST —
IF EQUIPPED ......................................................... 70
ParkSense Rear Park Assist Sensors ......... 70
ParkSense Rear Park Assist Alerts ............. 71
ParkSense Rear Park Assist Failure
Indications.................................................... 72 Cleaning The ParkSense Rear Park Assist
System .......................................................... 72 ParkSense Rear Park Assist System Usage
Precautions .................................................. 72
PARKVIEW REAR BACK UP CAMERA ............... 73
REFUELING THE VEHICLE ................................... 74 VEHICLE LOADING ................................................75
Vehicle Certification Label .......................... 75
Gross Vehicle Weight Rating (GVWR) ......... 76
Gross Axle Weight Rating (GAWR) ............. 76
Tire Size ........................................................ 76
Rim Size ....................................................... 76
Inflation Pressure ........................................ 76
Curb Weight ................................................. 76
Overloading .................................................. 76
Loading......................................................... 76
TRAILER TOWING .................................................77
Common Towing Definitions ....................... 77
Trailer Hitch Classification .......................... 78
Trailer Towing Weights (Maximum Trailer
Weight Ratings) ........................................... 79 Trailer And Tongue Weight ......................... 79
Towing Requirements ................................ 79
Towing Tips ................................................. 82
RECREATIONAL TOWING (BEHIND
MOTORHOME) ......................................................83
Towing This Vehicle Behind Another
Vehicle .......................................................... 83 Recreational Towing — Automatic
Transmission................................................ 83
DRIVING TIPS ........................................................84
Driving On Slippery Surfaces ..................... 84
Driving Through Water ............................... 84

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52GETTING TO KNOW YOUR INSTRUMENT PANEL
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 153.
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.
Engine Oil Level Warning Light
This warning light appears on the
panel when the engine oil level falls
below the minimum recommended
value. Restore the correct engine oil
level or contact your authorized dealer for
service.
Yellow Warning Lights
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.
Low Fuel Warning Light
When the fuel level reaches
approximately 2–3 gal (9–11 L) this
light will turn on, and remain on until
fuel is added.
Generic Warning Light
The Generic Warning Light will
illuminate if any of the following
conditions occur: Engine Oil Pressure
Sensor Failure, External Light Failure,
Parking Sensor Failure, Fuel Cut-Off Fail/
Intervention, Generic Failure on Trailer, or Air
Bag telltale recovery.
The telltale will blink in case of an Air Bag
Warning Light Failure. Contact an authorized
dealer immediately for service.
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.

21_VM_OM_EN_USC_t.book Page 52

58
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 (P) or
NEUTRAL (N) 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
Turn the ignition switch to the AVV (START)
position 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)
position, wait 10 to 15 seconds, then repeat
this procedure.
Cold Weather Operation
To ensure reliable starting at low temperatures,
use of an externally powered electric engine
block heater (available from an authorized
dealer) is recommended.To prevent possible engine damage while
starting at low temperatures, this vehicle will
inhibit engine cranking when the ambient
temperature is less than -31°F (-35° C) and the
oil temperature sensor reading indicates an
engine block heater has not been used. The
message “plug in engine heater” will be
displayed in the instrument cluster when the
ambient temperature is below -25°F (-32° C) at
the time the engine is shut off as a reminder.
Extended Park Starting
NOTE:
Extended Park condition occurs when the
vehicle has not been started or driven for at
least 30 days.

1. Install a battery charger or jumper cables
to the battery to ensure a full battery
charge during the crank cycle.

2. Place the ignition in the AVV (START) position and release it when the engine
starts.
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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70STARTING AND OPERATING
To Resume Speed
To resume a previously set speed, push the
RES (+) button and release. Resume can be used
at any speed above 20 mph (32 km/h) up to the maximum speed of 100 mph (160 km/h).
To Deactivate
A tap on the brake pedal, pushing the CAN
button, or normal brake pressure will deactivate
the Cruise Control system without erasing the
set speed from memory.
Pushing the on/off button or turning the ignition
switch off erases the set speed from memory.
PARKSENSE REAR PARK ASSIST — IF
EQUIPPED
The ParkSense system provides an audible
indication of the distance between the rear
fascia/bumper and a detected obstacle when
backing up (e.g. during a parking maneuver)
Ú page 72.
The ParkSense system is automatically
activated when the transmission is placed into
REVERSE. As the distance from an obstacle
behind the vehicle decreases, the audible alert
becomes more frequent. Interaction With Trailer Towing
The ParkSense system is automatically
deactivated when a trailer equipped by Mopar is
hitched to the vehicle. The system will be
automatically activated as soon as the trailer is
removed. If it does not happen, turning the key
ignition switch to OFF and then to ON again
would be needed. If a non-Mopar trailer hitch is
mounted, the sensor deactivation cannot be
guaranteed.
ParkSense Rear Park Assist Sensors
The four ParkSense sensors, located in the rear
fascia/bumper, monitor the area behind the
vehicle that is within the sensors’ field of view.
The sensors can detect obstacles, in the
horizontal direction, from approximately
12 inches (30 cm) up to 55 inches (140 cm)
from the center of the rear fascia/bumper and
up to 24 inches (60 cm) from the corners of the
rear fascia/bumper, depending on the location,
type and orientation of the obstacle.
ParkSense Rear Park Assist Sensors Locations

If several obstacles are detected, the
ParkSense system indicates the nearest
obstacle.
The minimum height of a detectable obstacle
corresponds to the maximum height of an
obstacle that would clear the underside of the
vehicle during the parking maneuver.

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146SAFETY
Electronic Brake Control (EBC) System
Your vehicle is equipped with an advanced
Electronic Brake Control (EBC) system that
includes the Brake Assist System (BAS),
Traction Control System (TCS), Hill Start Assist
(HSA), Electronic Stability Control (ESC),
Electronic Roll Mitigation (ERM) and Trailer
Sway Control (TSC). All systems work together to
enhance vehicle stability and control in various
driving conditions and are commonly referred to
as ESC.
Brake Assist System (BAS)
BAS is designed to optimize the vehicle’s
braking capability during emergency braking
maneuvers. The system detects an emergency
braking situation by sensing the rate and
amount of brake application and then applies
optimum pressure to the brakes. This can help
reduce braking distances. The BAS
complements the Anti-Lock Brake System
(ABS). Applying the brakes very quickly results
in the best BAS assistance. To receive the
benefit of the system, you must apply continuous braking pressure during the
stopping sequence (do not “pump” the brakes).
Do not reduce brake pedal pressure unless
braking is no longer desired. Once the brake
pedal is released, the BAS is deactivated.
Electronic Stability Control (ESC)
ESC enhances directional control and stability
of the vehicle under various driving conditions.
ESC corrects for over/under steering of the
vehicle by applying the brake of the appropriate
wheel to counteract the above conditions.
Engine power may also be reduced to help the
vehicle maintain the desired path.
Oversteer - when the vehicle is turning more
than appropriate for the steering wheel posi
-
tion.
Understeer - when the vehicle is turning less
than appropriate for the steering wheel posi -
tion.
ESC uses sensors in the vehicle to determine
the vehicle path intended by the driver and
compares it to the actual path of the vehicle.
When the actual path does not match the
intended path, ESC applies the brake of the
appropriate wheel to assist in counteracting the
oversteer or understeer condition.
WARNING!
The Brake Assist System (BAS) cannot
prevent the natural laws of physics from
acting on the vehicle, nor can it increase the
traction afforded by prevailing road
conditions. BAS cannot prevent collisions,
including those resulting from excessive
speed in turns, driving on very slippery
surfaces, or hydroplaning. The capabilities of
a BAS-equipped vehicle must never be
exploited in a reckless or dangerous manner,
which could jeopardize the user's safety or
the safety of others.

21_VM_OM_EN_USC_t.book Page 146

SAFETY149
HSA will work in REVERSE and all forward gears
when the activation criteria have been met. The
system will not activate if the vehicle is placed
in NEUTRAL or PARK.
Traction Control System (TCS)
TCS monitors the amount of wheel spin of each
of the driven wheels. If wheel spin is detected,
brake pressure is applied to the slipping
wheel(s) and engine power is reduced to
provide enhanced acceleration and stability. A
feature of the TCS system, Brake Limited
Differential (BLD), functions similarly to a
limited slip differential and controls the wheel
spin across a driven axle. If one wheel on a
driven axle is spinning faster than the other, the
system will apply the brake of the spinning wheel. This will allow more engine torque to be
applied to the wheel that is not spinning. This
feature remains active even if TCS and ESC are
in the “Partial Off” mode Ú
page 146.
Trailer Sway Control (TSC) — If Equipped
TSC uses sensors in the vehicle to recognize an
excessively swaying trailer and will take the
appropriate actions to attempt to stop the sway.
The system may reduce engine power and apply
the brake of the appropriate wheel(s) to
counteract the sway of the trailer.
NOTE:
TSC cannot stop all trailers from swaying.
Always use caution when towing a trailer and
follow the trailer tongue weight recommenda -
tions Ú page 77.
When TSC is functioning, the ESC Activation/
Malfunction Indicator Light will flash, the engine
power may be reduced and you may feel the
brakes being applied to individual wheels to
attempt to stop the trailer from swaying. TSC is
disabled when the ESC system is in the “Partial
Off” mode.
AUXILIARY DRIVING SYSTEMS
Tire Pressure Monitoring System (TPMS)
The Tire Pressure Monitoring System (TPMS)
will warn the driver of a low tire pressure based
on the vehicle recommended cold placard
pressure.
The tire pressure will vary with temperature by
about 1 psi (7 kPa) for every 12°F (6.5°C). This
means that when the outside temperature
decreases, the tire pressure will decrease. Tire
pressure should always be set based on cold
inflation tire pressure. This is defined as the tire
pressure after the vehicle has not been driven
for at least three hours, or driven less than
1 mile (1.6 km) after a three hour period. The
cold tire inflation pressure must not exceed the
maximum inflation pressure molded into the
WARNING!
There may be situations on minor hills with a
loaded vehicle, or while pulling a trailer, when
the system will not activate and slight rolling
may occur. This could cause a collision with
another vehicle or object. Always remember
the driver is responsible for braking the
vehicle.
WARNING!
If TSC activates while driving, slow the vehicle
down, stop at the nearest safe location, and
adjust the trailer load to eliminate trailer
sway.
6

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