Yellow Warning Lights - RAM 2500 2020 Owner's Manual

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104
GETTING TO KNOW YOUR INSTRUMENT PANEL
CAUTION!
Continuous driving with the Transmission Tempera-
ture Warning Light illuminated will eventually cause
severe transmission damage or transmission failure.
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.
Refer to "Air Suspension System —
If Equipped" in "Starting And Operating" for
further information.
Engine Check/Malfunction Indicator
Warning Light (MIL)
The Engine Check/Malfunction Indicator
Light (MIL) is a part of an Onboard Diagnos-
tic System called OBD II that monitors
engine and automatic transmission control
systems. This warning light will illuminate when the igni-
tion 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.
WARNING!
A malfunctioning catalytic converter, as referenced
above, can reach higher temperatures than in normal
operating conditions. This can cause a fire if you drive
slowly or park over flammable substances such as
dry plants, wood, cardboard, etc. This could result in
death or serious injury to the driver, occupants or
others.
CAUTION!
Prolonged driving with the Malfunction Indicator Light
(MIL) on could cause damage to the vehicle control
system. It also could affect fuel economy and drive-
ability. If the MIL is flashing, severe catalytic converter
damage and power loss will soon occur. Immediate
service is required.
Electronic Stability Control (ESC) Active
Warning Light — If Equipped
This warning light will indicate when the
Electronic Stability Control system is Active.
The "ESC Indicator Light" in the instrument
cluster will come on when the ignition is
placed in the ON/RUN or ACC/ON/RUN position, and
when ESC is activated. It should go out with the engine
running. If the "ESC Indicator Light" comes on continu-
ously with the engine running, a malfunction has been
detected in the ESC system. If this warning 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 an authorized
dealer as soon as possible to have the problem diag-
nosed and corrected.
The "ESC OFF Indicator Light" and the "ESC Indica-
tor Light" come on momentarily each time the igni-
tion is placed in the ON/RUN or ACC/ON/RUN
position.
The ESC system will make buzzing or clicking
sounds when it is active. This is normal; the sounds
will stop when ESC becomes inactive.
This light will come on when the vehicle is in an ESC
event.

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