2020 Ram ProMaster brake booster

48GETTING TO KNOW YOUR INSTRUMENT PANEL
Electronic Throttle Control (ETC) Warning Light
This warning light will illuminate to
inform of a problem with the Elec -
tronic 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 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.
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 autho -
rized dealer if the message remains after
restarting the engine.
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 A/C system is on,
turn it off. Also, shift the transmission into
NEUTRAL and idle the vehicle. If the tempera -
ture 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 Emergency” for further information.
Brake Warning Light
This warning light monitors various
brake functions, including brake
fluid level and parking brake appli -
cation. 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.

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IN CASE OF EMERGENCY145
JUMP STARTING
If your vehicle has a discharged battery, it can
be jump started using a set of jumper cables
and a battery in another vehicle or by using a
portable battery booster pack. Jump starting
can be dangerous if done improperly, so please
follow the procedures in this section carefully.
NOTE:
When using a portable battery booster pack,
follow the manufacturer’s operating instruc -
tions and precautions.
Preparations For Jump Start
The vehicle’s jump starting remote posts are
located under the hood, in the engine compart -
ment on the driver's side.
The Remote Positive (+) Post is covered with a
protective cap located on the side of the Front
Power Distribution Center.
The Remote Negative (-) Post is located on the
core support closest to the front of the vehicle.
Jump Starting Locations 1. Apply the parking brake, shift the automatic
transmission into PARK (P) and turn the
ignition to the OFF position.
2. Turn off the heater, radio, and all unneces -
sary electrical accessories.
3. If using another vehicle to jump start the battery, park the vehicle within the jumper
cables reach, apply the parking brake and
make sure the ignition is OFF.
WARNING!
Do not attempt jump starting if the battery is
frozen. It could rupture or explode and cause
personal injury.
CAUTION!
Do not use a portable battery booster pack or
any other booster source with a system
voltage greater than 12 Volts or damage to
the battery, starter motor, alternator or
electrical system may occur.(+) — Remote Positive Post
(-) — Remote Negative Post
WARNING!
Take care to avoid the radiator cooling fan
whenever the hood is raised. It can start
anytime the ignition switch is ON. You can
be injured by moving fan blades.
Remove any metal jewelry such as rings,
watch bands and bracelets that could
make an inadvertent electrical contact. You
could be seriously injured.
Batteries contain sulfuric acid that can
burn your skin or eyes and generate
hydrogen gas which is flammable and
explosive. Keep open flames or sparks
away from the battery.
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IN CASE OF EMERGENCY147
3. Disconnect the positive end (+) of the
jumper cable from the positive (+) post of
the booster battery.
4. Disconnect the opposite end of the positive (+) jumper cable from the remote positive
(+) post of the discharged vehicle.
5. Close the cover of the Front Power Distribu -
tion Center.
If frequent jump starting is required to start your
vehicle you should have the battery and
charging system inspected at an authorized
dealer.Battery Location
There are two remote jump starting posts under
the hood which is the recommended jump start
location. If access to the battery is needed, an
access panel on the driver’s side floor will allow
for battery access.
Access Panel
Battery Location
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can
reduce the potential for overheating by taking
the appropriate action.
On the highways — slow down.
In city traffic — while stopped, place the trans -
mission in NEUTRAL (N), but do not increase
the engine idle speed while preventing
vehicle motion with the brakes.
NOTE:
There are steps that you can take to slow down
an impending overheat condition:
If your Air Conditioner (A/C) is on, turn it off.
The A/C system adds heat to the engine
cooling system and turning the A/C off can
help remove this heat.
You can also turn the temperature control to
maximum heat, the mode control to floor and
the blower control to high. This allows the
heater core to act as a supplement to the
radiator and aids in removing heat from the
engine cooling system.
CAUTION!
Accessories plugged into the vehicle power
outlets draw power from the vehicle’s battery,
even when not in use (i.e., cellular devices,
etc.). Eventually, if plugged in long enough
without engine operation, the vehicle’s
battery will discharge sufficiently to degrade
battery life and/or prevent the engine from
starting.
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251

Cargo Area Cover

..................................... 37
Cargo Compartment
.................................. 37
Cargo Light
............................................ 26
Certification Label
.................................. 112
Change Oil Indicator
.................................. 44
Changing A Flat Tire
........................ 133, 168
Chart, Tire Sizing
.................................... 169
Check Engine Light
(Malfunction Indicator Light)
......................... 55
Checking Your Vehicle For Safety
................... 89
Checks, Safety
........................................ 89
Child Restraint
........................................ 83
Child Restraints
Booster Seats.................................... 86Child Seat Installation.......................... 88Infant And Child Restraints................... 85Older Children And Child Restraints........ 85
Clean Air Gasoline
.................................. 192
Cleaning
Wheels........................................... 183
Climate Control
........................................ 28Manual............................................ 28Rear................................................ 32
Cold Weather Operation
.............................. 92
Compact Spare Tire
................................. 181
Contract, Service
.................................... 247
Cooling Pressure Cap (Radiator Cap)
............. 165

Cooling System
...................................... 163Adding Coolant (Antifreeze)................. 164Coolant Level........................... 163, 165Cooling Capacity............................... 195Disposal Of Used Coolant................... 165Drain, Flush, And Refill....................... 163Inspection....................................... 165Points To Remember......................... 165Pressure Cap................................... 165Radiator Cap................................... 165Selection Of Coolant (Antifreeze).. 164, 195
Corrosion Protection
................................ 187
Cruise Light
............................................53
Cupholders
..................................... 38, 190
Customer Assistance
............................... 246
Customer Programmable Features
................ 199
Cybersecurity
........................................ 198
D

Dealer Service
....................................... 158
Defroster, Windshield
.................................90
Diagnostic System, Onboard
......................... 54
Dimmer Control Switch
............................... 27
Dimmer Switch
Headlight..........................................24
Dipsticks
Automatic Transmission..................... 168Power Steering................................. 103
Disable Vehicle Towing
............................. 149

Disposal
Antifreeze (Engine Coolant)................ 165
Door Ajar
.............................................. 47
Door Ajar Light
........................................ 47
Door Locks
............................................ 14Automatic........................................ 15
Doors
.................................................. 14
Driver’s Seat Back Tilt
............................... 15
Driving
Through Flowing, Rising, Or Shallow
Standing Water
............................... 121
E

Electric Brake Control System
....................... 57
Electric Remote Mirrors
.............................. 22
Electrical Power Outlets
............................. 39
Electronic Speed Control (Cruise Control)
....... 103
Electronic Stability Control (ESC)
................... 57
Electronic Throttle Control Warning Light
.......... 48
Emergency, In Case Of
Freeing Vehicle When Stuck............... 149Jacking...................................133, 168Jump Starting.................................. 145
Emission Control System Maintenance
............ 55
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