2019 Ram ProMaster brake sensor

If the ABS light remains on or turns on while driving, then
the Anti-Lock portion of the brake system is not function-
ing 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.
— 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, DST 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.
Yellow Indicator Lights
— Stop Light Failure Indicator Light
This light will illuminate if one or more of the stop light
bulb fails.
The failure relating to this light could be:
•One or more blown bulbs.
• A blown protection fuse.
• A break in the electrical connection.
— External Light Failure Indicator Light — If
Equipped
The External Light Failure Indicator will come on when a
failure to one of the following lights is detected:
• Direction Indicators
• Backup Lights
• Parking Lights
• Daytime Running Lights
• Clearance Lights
• License Plate Lights
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GETTING TO KNOW YOUR INSTRUMENT PANEL 81

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.
•Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
• Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
WARNING!
• Electronic Stability Control (ESC) cannot prevent the
natural laws of physics from acting on the vehicle,
nor can it increase the traction afforded by prevailing
road conditions. ESC cannot prevent accidents, in-
cluding those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. ESC also cannot prevent accidents resulting
from loss of vehicle control due to inappropriate
(Continued)
WARNING! (Continued)
driver input for the conditions. Only a safe, attentive,
and skillful driver can prevent accidents. The capa-
bilities of an ESC equipped vehicle must never be
exploited in a reckless or dangerous manner which
could jeopardize the user ’s safety or the safety of
others.
• Vehicle modifications, or failure to properly main-
tain your vehicle, may change the handling charac-
teristics of your vehicle, and may negatively affect
the performance of the ESC system. Changes to the
steering system, suspension, braking system, tire
type and size or wheel size may adversely affect ESC
performance. Improperly inflated and unevenly
worn tires may also degrade ESC performance. Any
vehicle modification or poor vehicle maintenance
that reduces the effectiveness of the ESC system can
increase the risk of loss of vehicle control, vehicle
rollover, personal injury and death.
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SAFETY 91

ESC Activation/Malfunction Indicator Light And
ESC OFF Indicator Light
The ESC Activation/Malfunction Indicator Light
in the instrument cluster will come on when the
ignition is turned to the ON mode. It should go
out with the engine running. If the ESC
Activation/Malfunction Indicator Light comes on continu-
ously 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 your authorized dealer as soon as possible
to have the problem diagnosed and corrected.
The ESC Activation/Malfunction Indicator Light (located
in the instrument cluster) starts to flash as soon as the tires
lose traction and the ESC system becomes active. The ESC
Activation/Malfunction Indicator Light also flashes when
TCS is active. If the ESC Activation/Malfunction Indicator
Light begins to flash during acceleration, ease up on the
accelerator and apply as little throttle as possible. Be sure to
adapt your speed and driving to the prevailing road
conditions. NOTE:
•
The ESC Activation/Malfunction Indicator Light and
the ESC OFF Indicator Light come on momentarily each
time the ignition switch is turned ON.
• Each time the ignition is turned ON, 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 following the maneuver
that caused the ESC activation.
The ESC OFF Indicator Light indicates the Elec-
tronic Stability Control (ESC) is off.
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. TSC will become active
automatically once an excessively swaying trailer is recog-
nized.
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SAFETY 93

STARTING AND OPERATING
CONTENTS
STARTING THE ENGINE ..................137
▫ Automatic Transmission ..................137
▫ Normal Starting ....................... .137
▫ Cold Weather Operation (Below –22°F Or
30°C) ............................. .137
▫ If Engine Fails To Start ..................137
▫ After Starting ......................... .138
 ENGINE BLOCK HEATER — IF EQUIPPED . . . .138
 ENGINE BREAK-IN RECOMMENDATIONS . . . .139
 PARKING BRAKE ...................... .139
 AUTOMATIC TRANSMISSION ..............141
▫ Key Ignition Park Interlock ................142
▫ Brake/Transmission Shift Interlock System . . . .142
▫ Six-Speed Automatic Transmission ...........142
POWER STEERING ..................... .149
▫ Power Steering Fluid Check ...............150
 SPEED CONTROL — IF EQUIPPED ..........151
▫ To Activate .......................... .151
▫ To Set A Desired Speed ...................152
▫ To Vary The Speed Setting ................152
▫ To Accelerate For Passing .................153
▫ To Resume Speed ...................... .153
▫ To Deactivate ......................... .153
 PARKSENSE REAR PARK ASSIST — IF
EQUIPPED ........................... .154
▫ ParkSense Rear Park Assist Sensors ..........154
▫ ParkSense Rear Park Assist Alerts ...........154
▫ ParkSense Rear Park Assist Failure Indications . .156
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