2017 Ram 3500 warning light

WARNING!
•Do not start or run an engine in a closed garage or
confined area. Exhaust gas contains Carbon Monox-
ide (CO) which is odorless and colorless. Carbon
Monoxide is poisonous and can cause serious injury
or death when inhaled.
• Keep Remote Keyless Entry key fobs away from
children. Operation of the Remote Start System,
windows, door locks or other controls could cause
serious injury or death.
ENGINE BREAK-IN RECOMMENDATIONS
The diesel engine does not require a break-in period due to
its construction. Normal operation is allowed, providing
the following recommendations are followed:
• Warm up the engine before placing it under load.
• Do not operate the engine at idle for prolonged periods.
• Use the appropriate transmission gear to prevent engine
lugging. •
Observe vehicle oil pressure and temperature indicators.
• Check the coolant and oil levels frequently.
• Vary throttle position at highway speeds when carrying
or towing significant weight.
NOTE: Light duty operation such as light trailer towing or
no load operation will extend the time before the engine is
at full efficiency. Reduced fuel economy and power may be
seen at this time.
The engine oil installed in the engine at the factory is a
high-quality energy conserving type lubricant. Oil changes
should be consistent with anticipated climate conditions
under which vehicle operations will occur. The recom-
mended viscosity and quality grades are shown under
“Fluids, Lubricants and Genuine Parts”, under “Maintain-
ing Your Vehicle” in this manual. NON-DETERGENT OR
STRAIGHT MINERAL OILS MUST NEVER BE USED.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 11

UNDERSTANDING YOUR INSTRUMENT PANEL
CONTENTS
INSTRUMENT CLUSTER ...................14
 WARNING AND INDICATOR LIGHTS .........19
▫ Yellow Telltale Indicator Lights ..............19
 INSTRUMENT CLUSTER DISPLAY ............21
▫ Oil Life Reset ..........................23
▫ Fuel Filter Life Reset .....................24
▫ Diesel Particulate Filter (DPF) Messages .......25▫
Displays ..............................26
▫ Vehicle Information (Customer Information
Features) ..............................27
▫ Diesel Exhaust Fluid (DEF) Warning Messages . . .28
▫ Diesel Exhaust Fluid (DEF) Fault Warning
Messages .............................293

3. Speedometer•Indicates vehicle speed.
4. Fuel Gauge •The pointer shows the level of fuel in the fuel tank
when the ignition switch is in the ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel filler door is located.
5. DEF Gauge •The DEF Gauge displays the actual level of Diesel
Exhaust Fluid in the DEF tank. Diesel Exhaust Fluid
(DEF) is required to maintain normal vehicle operation
and emissions compliance. If something is wrong with
the gauge, a DEF Warning Message or Malfunction
Indicator Light (MIL) will be displayed. More infor-
mation is available in the Instrument Cluster Display
section under the heading of Diesel Exhaust Fluid
(DEF) Warning Messages.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
(Continued)
WARNING! (Continued)
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Maintaining Your Ve-
hicle.” Follow the warnings under the “Cooling Sys-
tem Pressure Cap” paragraph.
CAUTION!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reads “H”
pull over and stop the vehicle. Idle the vehicle with the
air conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on the
“H”, turn the engine off immediately and call an
authorized dealer for service.
NOTE:
• The gauge may take up to five seconds to update after
adding a gallon or more of Diesel Exhaust Fluid (DEF) to
the DEF tank. If you have a fault related to the DEF
system, the gauge may not update to the new level. See
your authorized dealer for service.
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UNDERSTANDING YOUR INSTRUMENT PANEL 15

1. Tachometer•Indicates the engine speed in revolutions per minute
(RPM x 1000).
2. Engine Coolant Temperature •This gauge shows the engine coolant temperature. The
gauge pointer will likely show higher temperatures
when driving in hot weather, up mountain grades, or
in heavy stop and go traffic. If the red Warning Light
turns on while driving, safely bring the vehicle to a
stop, and turn off the engine. DO NOT operate the
vehicle until the cause is corrected.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
service if your vehicle overheats. If you decide to look
under the hood yourself, see “Maintaining Your Ve-
hicle.” Follow the warnings under the “Cooling Sys-
tem Pressure Cap” paragraph.
CAUTION!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reads “H”
pull over and stop the vehicle. Idle the vehicle with the
air conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on the
“H”, turn the engine off immediately and call an
authorized dealer for service.
3. Oil Pressure Gauge •The pointer should always indicate some oil pressure
when the engine is running. A continuous high or low
reading under normal driving conditions may indicate
a lubrication system malfunction. Immediate service
should be obtained from an authorized dealer.
4. Speedometer •Indicates vehicle speed.
5. Fuel Gauge •The pointer shows the level of fuel in the fuel tank
when the ignition switch is in the ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel filler door is located.
3
UNDERSTANDING YOUR INSTRUMENT PANEL 17

6. Instrument Cluster Display•When the appropriate conditions exist, this display
shows the Instrument Cluster Display messages. Refer
to “Instrument Cluster Display” in “Understanding
Your Instrument Panel” for further information.
7. DEF Gauge •The DEF Gauge displays the actual level of Diesel
Exhaust Fluid in the DEF tank. Diesel Exhaust Fluid
(DEF) is required to maintain normal vehicle operation
and emissions compliance. If something is wrong with
the gauge, a DEF Warning Message or Malfunction
Indicator Light (MIL) will be displayed. More infor-
mation is available in the Instrument Cluster Display
section under the heading of Diesel Exhaust Fluid
(DEF) Warning Messages.
NOTE:
• The DEF tank on these vehicles is designed with a large
amount of full reserve. So the level sensor will indicate a
full reading even before the tank is completely full. To
put it another way, there’s additional storage capacity in
the tank above the Full mark that’s not represented in
the gauge. You may not see any movement in the
reading – even after driving up to 2,000 miles in some
cases. •
The gauge may take up to five seconds to update after
adding a gallon or more of Diesel Exhaust Fluid (DEF) to
the DEF tank. If you have a fault related to the DEF
system, the gauge may not update to the new level. See
your authorized dealer for service.
• The DEF gauge may also not immediately update after a
refill if the temperature of the DEF fluid is below 12F
(-11C). The DEF line heater will possibly warm up the
DEF fluid and allow the gauge to update after a period
of run time. Under very cold conditions, it is possible
that the gauge may not reflect the new fill level for
several drives.
• Outside temperature can affect DEF consumption. In
cold conditions, 12° F (-11° C) and below, the DEF gauge
needle can stay on a fixed position and may not move
for extended periods of time. This is a normal function of
the system.
CAUTION!
Driving with a hot engine cooling system could dam-
age your vehicle. If the temperature gauge reads “H”
pull over and stop the vehicle. Idle the vehicle with the
(Continued)
18 UNDERSTANDING YOUR INSTRUMENT PANEL

CAUTION!(Continued)
air conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on the
“H”, turn the engine off immediately and call an
authorized dealer for service.
WARNING AND INDICATOR LIGHTS
IMPORTANT:The warning / indicator lights switch on in
the instrument panel together with a dedicated message
and/or acoustic signal when applicable. These indications are indicative and precautionary and as such must not be
considered as exhaustive and/or alternative to the informa-
tion 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 indica-
tion.
All active telltales will display first if applicable. The
system check menu may appear different based upon
equipment options and current vehicle status. Some tell-
tales are optional and may not appear.
Yellow Telltale Indicator Lights
Wait To Start Light — If Equipped
Yellow Telltale
Light What It Means
Wait To Start Light
The “Wait To Start” telltale will illuminate for approximately two seconds when the ignition is
turned to the RUN position. It’s duration may be longer based on colder operating conditions.
Vehicle will not initiate start until telltale is no longer displayed. Refer to “Starting Procedures”
in “Starting and Operating” for further information.
NOTE:
The “Wait To Start” telltale may not illuminate if the intake manifold temperature is
warm enough.
3
UNDERSTANDING YOUR INSTRUMENT PANEL 19

Diesel Exhaust Fluid (DEF) Fault Warning
Messages
There are different messages which are displayed if the
vehicle detects that the DEF system has been filled with a
fluid other than DEF, has experienced component failures,
or when tampering has been detected.
When the DEF system needs to be serviced the following
warnings will display:
•Service DEF System See Dealer — This message will
display when the fault is initially detected and each time
the vehicle is started. The message will be accompanied
by a single chime and the Malfunction Indicator Light.
We recommend you drive to your nearest authorized
dealer and have your vehicle serviced immediately. If
not corrected in 50 miles, vehicle will enter the “Engine
Will not restart in XXXmi Service DEF See dealer”
warning stage and message.
• Incorrect DEF Detected See Dealer — This message will
display if the DEF system has detected the incorrect
fluid has been introduced to the DEF tank. The message
will be accompanied by a single chime. We recommend
you drive to your nearest authorized dealer and have
your vehicle serviced immediately. If not corrected in 30 miles, vehicle will enter the “Engine Will not restart in
XXX mi Service DEF See dealer” warning stage and
message.
• Engine Will Not Restart in XXX mi Service DEF See
Dealer — This message is first displayed if the fault
detected is not serviced after 50 miles of operation. It is
also displayed at 150 miles 125 miles and 100 miles.
System service is required within the displayed mileage.
The message will be displayed during vehicle start up
with an updated distance mileage, and it will be accom-
panied by a single chime. Starting at 100 miles, remain-
ing range will be continuously displayed while operat-
ing the vehicle. Chimes will also accompany the 75, 50
and 25 mile remaining distances. We recommend you
drive to your nearest authorized dealer and have your
vehicle serviced immediately.
• Engine Will Not Restart Service DEF System See
Dealer — This message will display if DEF system issue
detected is not serviced during the allowed period. Your
engine will not restart unless your vehicle is serviced by
your authorized dealer. This message will be displayed
when under 1 mile until engine will not start and each
time the vehicle is started, and will be continuously
displayed. The message will be accompanied by a single
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UNDERSTANDING YOUR INSTRUMENT PANEL 29

2. Press and hold the brake pedal while pushing theENGINE START/STOP button once.
NOTE: A delay of the start of up to five seconds is possible
under very cold conditions. The Wait to Starttelltale will
be illuminated during the pre-heat process, When the
engine Wait To Start light goes off the engine will auto-
matically crank.
CAUTION!
If the “Water in Fuel Indicator Light” remains on, DO
NOT START the engine before you drain the water
from the fuel filters to avoid engine damage. Refer to
“Maintenance Procedures/Draining Fuel/Water Sepa-
rator Filter” in “Maintaining Your Vehicle” for further
information.
3. The system will automatically engage the starter to crank the engine. If the vehicle fails to start, the starter
will disengage automatically after 25 seconds.
4. If you wish to stop the cranking of the engine prior to the engine starting, push the button again.
5. Check that the oil pressure warning light has turned off.
6. Release the parking brake.
Extreme Cold Weather
The engine block heater is a resistance heater installed in the
water jacket of the engine. It requires a 110–115 Volt AC
electrical outlet with a grounded, three-wire extension cord.
Its use is recommended for environments that routinely fall
below -10°F (-23°C). It should be used when the vehicle has
not been running overnight or longer periods and should be
plugged in two hours prior to start. Its use is required for
cold starts with temperatures under -20°F (-28°C).
NOTE: The engine block heater cord is a factory installed
option. If your vehicle is not equipped, heater cords are
available from your authorized MOPAR dealer.
• A 12 Volt heater built into the fuel filter housing aids in
preventing fuel gelling. It is controlled by a built-in
thermostat.
• A Diesel Pre-Heat system both improves engine starting
and reduces the amount of white smoke generated by a
warming engine.
Starting Fluids
The engine is equipped with a glow plug preheating
system. If the instructions in this manual are followed, the
engine should start in all conditions and no type of starting
fluid should be used.
34 STARTING AND OPERATING