2016 Ram 2500 engine

Oil Pressure Warning Light
Red TelltaleLight What It Means
Oil Pressure Warning Light
This light indicates low engine oil pressure. If the light turns on while driving, stop the ve-
hicle and shut off the engine as soon as possible. A chime will sound when this light turns
on.
Do not operate the vehicle until the cause is corrected. This light does not indicate how
much oil is in the engine. The engine oil level must be checked under the hood.
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Electronic Throttle Control (ETC) Warning Light
Red TelltaleLight What It Means
Electronic Throttle Control (ETC) Warning Light
This light informs you of a problem with the Electronic Throttle Control (ETC) system. If a
problem is detected while the engine is running, the light will either stay on or flash de-
pending on the nature of the problem. Cycle the ignition key when the vehicle is safely and
completely stopped and the transmission is placed in the PARK position. The light should
turn off. If the light remains on with the engine running, your vehicle will usually be driv-
able; however, see an authorized dealer for service as soon as possible.
If the light continues to flash when the engine 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 first turned to ON/
RUN 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.
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Oil Pressure Warning Light
Red TelltaleLight What It Means
Oil Pressure Warning Light
This light indicates low engine oil pressure. If the light turns on while driving, stop the ve-
hicle and shut off the engine as soon as possible. A chime will sound when this light turns
on.
Do not operate the vehicle until the cause is corrected. This light does not indicate how
much oil is in the engine. The engine oil level must be checked under the hood.
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Yellow Telltale Indicator Lights
Engine Check/Malfunction Indicator Light (MIL)
Yellow TelltaleLight What It Means
Engine Check/Malfunction Indicator 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. The
light will illuminate when the ignition is in the ON position before engine start. If the bulb
does not come on when turning the key 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 sev-
eral 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 ser-
viced as soon as possible if this occurs.
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CAUTION!
Prolonged driving with the Malfunction Indicator
Light (MIL) on could cause damage to the engine
control system. It also could affect fuel economy and
driveability. If the MIL is flashing, severe catalytic
converter damage and power loss will soon occur.
Immediate service is required.
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.
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Electronic Stability Control (ESC) Indicator Light — If Equipped
Yellow TelltaleLight What It Means
Electronic Stability Control (ESC) Indicator Light
The “ESC Indicator Light” in the instrument cluster will come on when the ignition switch
is turned to the ON/RUN position. It should go out with the engine running. If the “ESC
Indicator Light” comes on continuously with the engine running, a malfunction has been
detected in the ESC system. If this light remains on after several ignition cycles, and the ve-
hicle 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 Off Indicator Light” and the “ESC Indicator Light” come on momentarily each
time the ignition switch is turned to ON/RUN.
• Each time the ignition is turned to ON/RUN, 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.
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Transmission Temperature Indicator Light
Red TelltaleLight What It Means
Transmission Temperature Indicator Light
This light indicates that the transmission fluid temperature is running hot. This may occur with
severe usage, such as trailer towing. If this light turns on, safely pull over and stop them ve-
hicle. Then, shift the transmission into NEUTRAL and run the engine at idle or faster until the
light turns off.
CAUTION!
Continuous driving with the Transmission Tempera-
ture Warning Light illuminated will eventually cause
severe transmission damage or transmission failure.
WARNING!
If you continue operating the vehicle when the
Transmission Temperature Warning Light is illumi-
nated you could cause the fluid to boil over, come in
contact with hot engine or exhaust components and
cause a fire.
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Water in Fuel Indicator Light — If Equipped
Yellow TelltaleLight What It Means
Water in Fuel Indicator Light
The “Water In Fuel Indicator Light” will illuminate when there is water detected in the fuel
filters. If this light remains on, DO NOT start the vehicle before you drain the water from
the fuel filters to prevent engine damage. Refer to “Maintenance Procedures” in “Maintain-
ing Your Vehicle” for further information.
Low Diesel Exhaust Fluid (DEF) Indicator Light — If Equipped
Yellow Telltale
Light What It Means
Low Diesel Exhaust Fluid (DEF) Indicator Light
The Low Diesel Exhaust Fluid (DEF) Indicator will illuminate if the vehicle is low on Diesel
Exhaust Fluid (DEF). Refer to “Starting And Operating” for further information.
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