warning lights Ram 1500 2020 Owner's Manual

5
GETTING TO KNOW YOUR INSTRUMENT
PANEL
BASE / MIDLINE INSTRUMENT CLUSTER .............. 161
Base / Midline Instrument Cluster Descriptions.... 162
 PREMIUM INSTRUMENT CLUSTER ........................... 164
Premium Instrument Cluster Descriptions ............. 164
 INSTRUMENT CLUSTER DISPLAY ............................. 166
Instrument Cluster Display Controls ....................... 166
Oil Life Reset ................................................................ 168
Display Menu Items .................................................... 169
Battery Saver On/Battery Saver Mode Message —
Electrical Load Reduction Actions — If
Equipped....................................................................... 176
 WARNING LIGHTS AND MESSAGES ........................ 178
Red Warning Lights .................................................... 179
Yellow Warning Lights............................................... 183
Yellow Indicator Lights .............................................. 188
Green Indicator Lights ................................................ 192
White Indicator Lights ................................................ 193
Blue Indicator Lights ................................................... 194
 ONBOARD DIAGNOSTIC SYSTEM — OBD II ........... 195
Onboard Diagnostic System (OBD II)
Cybersecurity ............................................................... 195
 EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS....................................................................... 196
SAFETY
SAFETY FEATURES .........................................................198
Anti-Lock Brake System (ABS) ................................. 198
Electronic Brake Control System ..............................199
 AUXILIARY DRIVING SYSTEMS ..................................211
Blind Spot Monitoring (BSM) — If Equipped ........211
Forward Collision Warning (FCW) With Mitigation —
If Equipped ...................................................................222
Tire Pressure Monitoring System (TPMS) ............... 227
 OCCUPANT RESTRAINT SYSTEMS ...........................234
Occupant Restraint Systems Features ......................234
Important Safety Precautions.....................................235
Seat Belt Systems .........................................................236
Supplemental Restraint Systems (SRS).....................245
Child Restraints............................................................ 265
Transporting Pets.........................................................285
 SAFETY TIPS......................................................................285
Transporting Passengers ............................................285
Exhaust Gas .................................................................286
Safety Checks You Should Make Inside The
Vehicle ..........................................................................286
Periodic Safety Checks You Should Make Outside
The Vehicle ...................................................................289
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14 INTRODUCTION
tion, that may or may not be applicable to your vehicle, will
be identified with the wording “If Equipped”. All data
contained in this publication are intended to help you use
your vehicle in the best possible way. FCA US LLC aims at a
constant improvement of the vehicles produced. For this
reason, it reserves the right to make changes to the model
described for technical and/or commercial reasons. For
further information, contact an authorized dealer.
When it comes to service, remember that your authorized
dealer knows your vehicle best, has factory-trained techni-
cians and genuine MOPAR® parts, and cares about your
satisfaction.
HOW TO USE THIS MANUAL
Essential Information
Consult the Table of Contents to determine which section
contains the information you desire.
Since the specification of your vehicle depends on the items
of equipment ordered, certain descriptions and illustrations
may differ from your vehicle's equipment.
The detailed Index at the back of this Owner's Manual
contains a complete listing of all subjects.
Symbols
Some vehicle components have colored labels whose
symbols indicate precautions to be observed when using this
component. Refer to “Warning Lights and Messages” in
“Getting To Know Your Instrument Panel” for further infor -
mation on the symbols used in your vehicle.
WARNINGS AND CAUTIONS
This Owner’s Manual contains WARNINGS against oper-
ating procedures that could result in a collision, bodily injury
and/or death. It also contains CAUTIONS against proce -
dures that could result in damage to your vehicle. If you do
not read this entire Owner’s Manual, you may miss
important information. Observe all Warnings and Cautions.
VAN CONVERSIONS/CAMPERS
The New Vehicle Limited Warranty does not apply to body
modifications or special equipment installed by van conver -
sion/camper manufacturers/body builders. US residents
refer to the Warranty Information book, Section 2.1.C. Cana -
dian residents refer to the “What Is Not Covered” section of
the Warranty Information book. Such equipment includes
video monitors, VCRs, heaters, stoves, refrigerators, etc. For
warranty coverage and service on these items, contact the
applicable manufacturer.
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98 GETTING TO KNOW YOUR VEHICLE
POWER SUNROOF — IF EQUIPPED
Single Pane Power Sunroof — If Equipped
The power sunroof switches are located on the overhead
console between the courtesy/reading lights.Power Sunroof Switches
1 — Opening/Closing Sunroof
2 — Venting Sunroof
WARNING!
• Never leave children unattended in a vehicle, or with access to an unlocked vehicle. Never leave the key fob
in or near the vehicle, or in a location accessible to chil -
dren. Do not leave the ignition of a vehicle equipped
with Keyless Enter-N-Go in the ACC or ON/RUN
mode. Occupants, particularly unattended children,
can become entrapped by the power sunroof while
operating the power sunroof switch. Such entrapment
may result in serious injury or death.
• In a collision, there is a greater risk of being thrown from a vehicle with an open sunroof. You could also be
seriously injured or killed. Always fasten your seat belt
properly and make sure all passengers are also properly
secured.
• Do not allow small children to operate the sunroof. Never allow your fingers, other body parts, or any
object, to project through the sunroof opening. Injury
may result.
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130 GETTING TO KNOW YOUR VEHICLE
When the vehicle is turned off, be sure to unplug any equip-
ment as to not drain the battery of the vehicle. All accessories
connected to the outlet(s) should be removed or turned off
when the vehicle is not in use to protect the battery against
discharge.
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 discharge the battery
even more quickly. Only use these intermittently and
with greater caution.
• After the use of high power draw accessories, or long periods of the vehicle not being started (with accesso -
ries still plugged in), the vehicle must be driven a suffi -
cient length of time to allow the generator to recharge
the vehicle's battery.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 177
NOTE:
• The charging system is independent from load reduction.The charging system performs a diagnostic on the
charging system continuously.
• If the Battery Charge Warning Light is on it may indicate a problem with the charging system. Refer to “Battery
Charge Warning Light” in “Getting To Know Your Instru -
ment Panel” for further information.
The electrical loads that may be switched off (if equipped),
and vehicle functions which can be affected by load reduc -
tion:
• Heated Seats / Vented Seats / Heated Wheel
• Rear Defroster And Heated Mirrors
• HVAC System
• 115 Volts AC Power Inverter System
• Audio and Telematics System
Loss of the battery charge may indicate one or more of the
following conditions:
• The charging system cannot deliver enough electrical power to the vehicle system because the electrical loads are
larger than the capability of charging system. The charging
system is still functioning properly. • Turning on all possible vehicle electrical loads (e.g. HVAC
to max settings, exterior and interior lights, overloaded
power outlets +12 Volts, 115V AC, USB ports) during
certain driving conditions (city driving, towing, frequent
stopping).
• Installing options like additional lights, upfitter electrical accessories, audio systems, alarms and similar devices.
• Unusual driving cycles (short trips separated by long parking periods).
• The vehicle was parked for an extended period of time (weeks, months).
• The battery was recently replaced and was not charged completely.
• The battery was discharged by an electrical load left on when the vehicle was parked.
• The battery w as used for an extended period with t he engine not running to supply radio, lights, chargers,
+12 Volt portable appliances like vacuum cleaners,
gam e consoles and similar devices.
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178 GETTING TO KNOW YOUR INSTRUMENT PANEL
What to do when an electrical load reduction action
message is present (“Battery Saver On” or “Battery Saver
Mode”)
During a trip:
• Reduce power to unnecessary loads if possible:• Turn off redundant lights (interior or exterior).

• Check what may be plugged in to power outlets +12 Volts,115V AC, USB ports.

• Check HVAC settings (blower, temperature).
• Check the audio settings (volume).
After a trip:
• Check if any aftermarket equipment was installed (addi -
tional lights, upfitter electrical accessories, audio systems,
alarms) and review specifications if any (load and Ignition
Off Draw currents).
• Evaluate the latest driving cycles (distance, driving time and parking time).
• The vehicle should have service performed if the message is still present during consecutive trips and the evaluation
of the vehicle and driving pattern did not help to identify
the cause.WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in the instru-
ment panel together with a dedicated message and/or
acoustic signal when applicable. These indications are indic -
ative 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 tell -
tales 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.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 179
Red Warning Lights
— Seat Belt Reminder Warning Light
This warning light indicates when the driver or passenger
seat belt is unbuckled. When the ignition is first placed in the
ON/RUN or ACC/ON/RUN position and 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.
Refer to “Occupant Restraint Systems” in “Safety” for
further information.
— Air Bag Warning Light
This warning light will illuminate to indicate a fault with the
air bag, and will turn on for four to eight seconds as a bulb
check when the ignition is placed in the ON/RUN or ACC/
ON/RUN position. This light will illuminate with a single
chime when a fault with the air bag has been detected, it will
stay on until the fault is cleared. 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. — Brake Warning Light
This warning light monitors various brake functions,
including brake fluid level and parking brake application. 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.
The dual brake system provides a reserve braking capacity in
the event of a failure to a portion of the hydraulic system. A
leak in either half of the dual brake system is indicated by the
Brake Warning Light, which will turn on when the brake
fluid level in the master cylinder has dropped below a spec -
ified level.
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GETTING TO KNOW YOUR INSTRUMENT PANEL 183
— Door Open Warning Light
This indicator will illuminate when a door is ajar/open and
not fully closed.
NOTE:
If the vehicle is moving there will also be a single chime.
Yellow Warning Lights
— Adaptive Cruise Control (ACC) Fault Warning Light
— If Equipped
This warning light will illuminate to indicate a fault in the
ACC system. Contact a local authorized dealer for service.
For further information, refer to “Adaptive Cruise Control
(ACC)” in “Starting And Operating.”
— Air Suspension Fault Warning Light — If Equipped
This light will illuminate when a fault is detected with the air
suspension system. — Engine Check/Malfunction Indicator Warning Light
(MIL)
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.
CAUTION!
Continuous driving with the Transmission Temperature
Warning Light illuminated will eventually cause severe
transmission damage or transmission failure.
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188 GETTING TO KNOW YOUR INSTRUMENT PANEL
— Service Stop/Start System Warning Light — If
Equipped
This warning light will illuminate when the Stop/Start
system is not functioning properly and service is required.
Contact an authorized dealer for service.
— Service 4WD Warning Light — If Equipped

This warning light will illuminate to signal a fault with the 4WD
system. If the light stays on or comes on during driving, it means
that the 4WD system is not functioning properly and that
service is required. We recommend you drive to the nearest
service center and have the vehicle serviced immediately.

— Speed Control Fault Warning Light
This warning light will illuminate to indicate the Speed
Control System is not functioning properly and service is
required. Contact an authorized dealer.
Yellow Indicator Lights
— Forward Collision Warning Off Indicator Light — If
Equipped
This indicator light illuminates to indicate that Forward
Collision Warning is off. — Air Suspension Payload Protection Indicator Light
— If Equipped
This indicator light will illuminate to indicate that the
maximum payload may have been exceeded or load leveling
cannot be achieved at its current ride height. Protection
Mode will automatically be selected to “protect” the air
suspension system, air suspension adjustment is limited due
to payload.
— Trailer Merge Assist Indicator Light — If Equipped
This indicator light will illuminate to indicate when Trailer
Merge Assist has been activated.
Refer to “Blind Spot Monitoring (BSM)” in “Safety” for
further information.
— TOW/HAUL Indicator Light
This indicator light will illuminate when TOW/HAUL mode
is selected.
— Cargo Light — If Equipped
This indicator light will illuminate when the cargo light is
activated by pushing the cargo light button on the headlight
switch.
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192 GETTING TO KNOW YOUR INSTRUMENT PANEL
Refer to “Starting The Engine” in “Starting And Operating”
for further information.
NOTE:
The “Wait To Start” telltale may not illuminate if the intake
manifold temperature is warm enough.
Green Indicator Lights
— Adaptive Cruise Control (ACC) Set With Target
Light — If Equipped
This will display when the ACC is set and a target vehicle is
detected.
Refer to “Adaptive Cruise Control (ACC) — If Equipped” in
“Starting And Operating” for further information.
— Adaptive Cruise Control (ACC) Set With No Target
Detected Indicator Light — If Equipped
This light will turn on when the Adaptive Cruise Control is
SET and there is no target vehicle detected.
Refer to “Adaptive Cruise Control (ACC) — If Equipped” in
“Starting And Operating” for further information. — ECO Mode Indicator Light
This light will turn on when ECO Mode is active.
— Park/Headlight On Indicator Light
This indicator light will illuminate when the park lights or
headlights are turned on.
— LaneSense Indicator Light — If Equipped
The LaneSense 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.
Refer to “LaneSense — If Equipped” in “Starting And Oper -
ating” for further information.
— Front Fog Indicator Light — If Equipped
This indicator light will illuminate when the front fog lights
are on.
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