2017 Ram 3500 heater

•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.
Instrument Cluster
16 UNDERSTANDING YOUR INSTRUMENT PANEL

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

STARTING AND OPERATING
CONTENTS
STARTING PROCEDURES ..................32
▫ Normal Starting .........................33
▫ Automatic Transmission ..................33
▫ Keyless Enter-N-Go — Ignition .............33
▫ Extreme Cold Weather ....................34
▫ Starting Fluids ..........................34
 NORMAL OPERATION ....................35
▫ Cold Weather Precautions ..................36
▫ Engine Idling ..........................38
▫ Stopping The Engine .....................38
▫ Cooling System Tips — Automatic Transmission . .39 
ENGINE BLOCK HEATER — IF EQUIPPED .....40
 FUEL REQUIREMENTS ....................40
▫ Fuel Specifications ......................41
▫ Biodiesel Fuel Requirements ................42
 DIESEL EXHAUST FLUID ...................44
▫ System Overview ........................44
 ADDING FUEL — 1500 DIESEL MODELS .......45
▫ Avoid Using Contaminated Fuel .............47
▫ Bulk Fuel Storage — Diesel Fuel ............48
▫ Diesel Exhaust Fluid Storage ................48
▫ Adding Diesel Exhaust Fluid ...............49
4

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

WARNING!
•Do not leave children or animals inside parked
vehicles in hot weather. Interior heat build up may
cause serious injury or death.
• When leaving the vehicle, always make sure the
keyless ignition node is in the “OFF” mode, remove
the key fob from the vehicle and lock the vehicle.
• Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a number
of reasons. A child or others could be seriously or
fatally injured. Children should be warned not to
touch the parking brake, brake pedal or the gear
selector.
• Do not leave the key fob in or near the vehicle, or in
a location accessible to children, and do not leave the
ignition of a vehicle equipped with Keyless Enter-
N-Go in the ACC or ON/RUN mode. A child could
operate power windows, other controls, or move the
vehicle.
NORMAL OPERATION
Observe the following when the diesel engine is operating.
• All message center lights are off.
• Malfunction Indicator Light (MIL) is off.
• Engine Oil Pressure telltale is not illuminated.
• Voltmeter operation:
The voltmeter may show a gauge fluctuation at various
engine temperatures. This is caused by the glow plug
heating system. The number of cycles and the length of the
cycling operation is controlled by the engine control mod-
ule. Glow plug heater operation can run for several min-
utes, once the heater operation is complete the voltmeter
needle will stabilize.
4
STARTING AND OPERATING 35

Do Not Operate The Engine With Failed Parts
All engine failures give some warning before the parts fail.
Be on the alert for changes in performance, sounds, and
visual evidence that the engine requires service. Some
important clues are:
•Engine misfiring or vibrating severely.
• Sudden loss of power.
• Unusual engine noises.
• Fuel, oil or coolant leaks.
• Sudden change, outside the normal operating range, in
the engine operating temperature.
• Excessive smoke.
• Oil pressure drop.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms engine coolant and permits
quicker starts in cold weather. Connect the heater cord to a
ground-fault interrupter protected 110–115 Volt AC electri-
cal 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 for long periods of time and should be plugged in two hours prior to start. Its use is required for
cold starts with temperatures under -20°F (-28°C).
To ensure reliable starting at these temperatures, use of an
externally powered electric engine block heater (available
from your authorized dealer) is recommended.
WARNING!
Remember to disconnect the cord before driving. Dam-
age to the 110–115 Volt electrical cord could cause
electrocution.
NOTE: The block heater will require 110 Volts AC and
6.5 Amps to activate the heater element.
FUEL REQUIREMENTS
Use good quality diesel fuel from a reputable supplier in
your vehicle. Federal law requires that you must fuel this
vehicle with Ultra Low Sulfur Highway Diesel fuel
(15 ppm Sulfur maximum) and prohibits the use of Low
Sulfur Highway Diesel fuel (500 ppm Sulfur maximum) to
avoid damage to the emissions control system.
For most year-round service, No. 2 diesel fuel meeting
ASTM (formerly known as the American Society for Test-
ing and Materials) specification D-975 Grade S15 will
40 STARTING AND OPERATING

Adding Diesel Exhaust Fluid
The DEF gauge (located on the instrument cluster) will
display the level of DEF remaining in the tank. Refer to
“Instrument Cluster” and “Instrument Cluster Descrip-
tions” in “Understanding Your Instrument Panel” for fur-
ther information.
NOTE:
•Driving conditions (altitude, vehicle speed, load, etc.)
will effect the amount of DEF that is used in your
vehicle.
• Another factor is that 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.
• There is an electric heater inside the DEF tank that
automatically works when necessary. And if the DEF
supply does freeze, the truck will operate normally until
it thaws.
DEF Fill Procedure
NOTE: Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for the correct fluid type.
1. Remove cap from DEF tank (located on drivers side of the vehicle or in fuel door).
DEF Filler Cap And Fuel Fill 1500/2500/3500 Models
1 — Diesel Exhaust Fluid Fill Location
2 — Fuel Fill Location
4
STARTING AND OPERATING 49

2. Insert DEF fill adapter/nozzle into DEF tank filler neck.
NOTE:
•The DEF 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.CAUTION!
• To avoid DEF spillage, and possible damage to the
DEF tank from overfilling, do not “top off” the DEF
tank after filling.
• DO NOT OVERFILL. DEF will freeze below 12ºF
(-11ºC). The DEF system is designed to work in
temperatures below the DEF freezing point, how-
ever, if the tank is overfilled and freezes, the system
could be damaged.
• When DEF is spilled, clean the area immediately
with water and use an absorbent material to soak up
the spills on the ground.
• Do not attempt to start your engine if DEF is acci-
dentally added to the diesel fuel tank as it can result
in severe damage to your engine, including but not
limited to failure of the fuel pump and injectors.
(Continued)
50 STARTING AND OPERATING