heater Ram 1500 2016 Diesel Supplement

•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.WARNING AND INDICATOR LIGHTS
IMPORTANT: The warning / indicator lights switch on
in the instrument panel together with a dedicated mes-
sage 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 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 telltales 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.
156 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Cooling System Tips — Automatic
Transmission ........................ .215
 ENGINE BLOCK HEATER — IF EQUIPPED . . .217
▫ Block Heater Usage ....................217
 DIESEL EXHAUST BRAKE (ENGINE
BRAKING) .......................... .218
 AUTOMATIC TRANSMISSION —
IF EQUIPPED ........................ .220
▫ Key Ignition Park Interlock ...............222
▫ Brake/Transmission Shift Interlock System . . .222
▫ Six-Speed Automatic Transmission —
If Equipped ........................ .222
 MANUAL TRANSMISSION — IF EQUIPPED . .234
▫ Shifting ............................ .235▫
Downshifting ....................... .236
▫ Reverse Shifting ..................... .238
 AUXILIARY SWITCHES — IF EQUIPPED .....238
 POWER TAKE OFF OPERATION — IF EQUIPPED
(CHASSIS CAB ONLY) ..................239
▫ Stationary Mode ..................... .240
▫ Mobile Mode ........................ .241
 ENGINE RUNAWAY ....................242
 FUEL REQUIREMENTS ..................243
▫ Fuel Specifications ....................244
▫ Bio-Diesel Fuel Requirements .............245

ADDING FUEL — 2500/3500 DIESEL MODELS . . .248
 ADDING FUEL — CHASSIS CAB MODELS . . .251
194 STARTING AND OPERATING

Keyless Enter-N-Go Starting Procedure — Engine
Manifold Air Temperature 0° F To 66° F (–18° C to
19° C)
NOTE:The temperature displayed in the Electronic
Vehicle Information Center (EVIC) or Driver information
Display (DID) does not necessarily reflect the engine
manifold air temperature. Refer to “Electronic Vehicle
Information Center (EVIC)” or Driver Information Dis-
play (DID)” in “Understanding Your Instrument Panel”
for further information. When engine temperatures fall
below 66°F (19°C) the “Wait To Start Light” will remain
on indicating the intake manifold heater system is active. Follow the steps in the “Normal Starting” procedure
except:
1. Pushing the engine start button with the driver ’s foot
on the brake will move the ignition from OFF or ACC
to RUN, and will illuminate the Wait To Starttelltale.
The engine will not immediately crank, this is normal
operation.
2. The “Wait To Start telltale will remain on for a period
of time that varies depending on the engine tempera-
ture.
3. While the Wait to Start telltale is on, the EVIC/DID
will additionally display a gauge or bar whose initial
length represents the full Wait to Starttime period.
Its length will decrease until it disappears when the
Wait to Start time has elapsed.
200 STARTING AND OPERATING

CAUTION!
If the “Water in Fuel Indicator Light” remains on, DO
NOT START 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 fur-
ther information.
4. After the engine “Wait To Start” telltale goes off, the engine will automatically crank.
CAUTION!
The engine may automatically crank when the “Wait
To Start” time has elapsed. To abort the automatic
starting process, ensure the driver ’s foot is fully
removed from the brake pedal prior to pushing the
START/STOP button to cycle the ignition off. 5. After engine start-up, check to see that there is oil
pressure.
6. Allow the engine to idle about three minutes until the manifold heaters have completed the post-heat cycle.
7. Release the parking brake and drive.
NOTE:
• Engine idle speed will automatically increase to
1,000 RPM and engage the Variable Geometry Turbo-
charger at low coolant temperatures to improve engine
warm-up.
• The engine may not automatically crank after the
engine Wait To Start telltale goes off if a door or the
hood is ajar.
• If the engine stalls, or if the ignition switch is left ON
for more than two minutes after the “Wait To Start
Light” goes out, reset the grid heaters by turning the
5
STARTING AND OPERATING 201

ignition switch to the OFF position for at least five
seconds and then back ON. Repeat steps 1 through 7 of
“Keyless Enter-N-Go Starting Procedure – Engine
Manifold Air Temperature Below 66° F (19° C).”
Extreme Cold Weather
The Cummins diesel engine is equipped with several
features designed to assist cold weather starting and
operation:
•The engine block heater is a resistance heater installed
in the water jacket of the engine just above and behind
the oil filter. It requires a 110–115 Volt AC electrical
outlet with a grounded, three-wire extension cord.
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 housings aid in
preventing fuel gelling. It is controlled by a built-in
thermostat.
• A heated intake air system both improves engine
starting and reduces the amount of white smoke
generated by a warming engine.
Normal Starting Procedure — Engine Manifold Air
Temperature Above 66° F (19° C)
Observe the instrument panel cluster lights when starting
the engine.
1. Always apply the parking brake.
2. Shift into PARK for an automatic transmission. For vehicles equipped with a manual transmission, fully
press and hold the clutch pedal and shift into NEU-
TRAL.
202 STARTING AND OPERATING

Starting Procedure — Engine Manifold Air
Temperature 0°F To 66°F (–18°C to 19°C)
NOTE:The temperature displayed in the Electronic
Vehicle Information Center (EVIC) or Driver Information
Display (DID) does not necessarily reflect the engine
manifold air temperature. Refer to “Electronic Vehicle
Information Center (EVIC)” or “Driver Information Dis-
play (DID)” in “Understanding Your Instrument Panel”
for further information. When engine temperatures fall
below 66°F (19°C) the “Wait To Start Light” will remain
on indicating the intake manifold heater system is active.
Follow the steps in the “Normal Starting” procedure
except:
1. The “Wait To Start” telltale will remain on for a period of time that varies depending on the engine tempera-
ture. 2. While the
Wait To Start” telltale is on, the EVIC/DID
will additionally display a gauge or bar whose initial
length represents the full Wait To Starttime period.
Its length will decrease until it disappears when the
Wait To Start time has elapsed.
CAUTION!
If the “Water in Fuel Indicator Light” remains on, DO
NOT START 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 fur-
ther information.
3. After the “Wait To Start” telltale goes off, turn the ignition switch to the START position. Do not press the
accelerator during starting.
204 STARTING AND OPERATING

CAUTION!
Do not crank engine for more than 15 seconds at a
time or starter motor damage may result. Turn the
ignition switch to the OFF position and wait at least
two minutes for the starter to cool before repeating
start procedure.
4. After engine start-up, check that the oil pressure warning light has turned off.
5. Allow the engine to idle about three minutes until the manifold heaters have completed the post-heat cycle.
6. Release the parking brake and drive.
NOTE:
• Engine idle speed will automatically increase to 1,000
RPM and engage the Variable Geometry Turbocharger
at low coolant temperatures to improve engine warm-
up. •
Automatic equipped vehicles with optional Keyless
Enter-N-Go – If the start button is pushed once while
in park with the ignition off and driver ’s foot on the
brake pedal, the vehicle will automatically crank and
start after the Wait to Start time has elapsed. If it is
desired to abort the start process before it completes,
the driver ’s foot should be fully removed from the
brake pedal prior to pushing the start button again in
order for the ignition to move directly to off.
• If the engine stalls, or if the ignition switch is left ON
for more than two minutes after the “Wait To Start”
telltale goes out, reset the grid heaters by turning the
ignition switch to the OFF position for at least five
seconds and then back ON. Repeat steps 1 through 5 of
“Starting Procedure – Engine Manifold Air Tempera-
ture Below 66°F (19°C).”
5
STARTING AND OPERATING 205

Starting Procedure — Engine Manifold Air
Temperature Below 0°F (-18°C)
In extremely cold weather below 0°F (-18°C) it may be
beneficial to cycle the manifold heaters twice before
attempting to start the engine. This can be accomplished
by turning the ignition OFF for at least five seconds and
then back ON after the “Wait To Start” telltale has turned
off, but before the engine is started. However, excessive
cycling of the manifold heaters will result in damage to
the heater elements or reduced battery voltage.
NOTE:If multiple pre-heat cycles are used before start-
ing, additional engine run time may be required to
maintain battery state of charge at a satisfactory level.
1. If the engine stalls after the initial start, the ignitionmust be turned to the OFF position for at least five
seconds and then to the ON position to recycle the
manifold heaters. NOTE:
Excessive white smoke and poor engine perfor-
mance will result if manifold heaters are not recycled.
2. Heat generated by the manifold heaters dissipates rapidly in a cold engine. If more than two minutes
pass between the time the “Wait To Start” telltale turns
off and the engine is started, recycle the manifold
heaters by turning the ignition switch to the OFF
position for at least five seconds and then back ON.
3. If the vehicle is driven and vehicle speed exceeds 19 mph (31 km/h) before the manifold heater post-
heat (after start) cycle is complete, the manifold heat-
ers will shut off.
4. If the engine is started before the “Wait To Start” telltale turns off, the preheat cycle will turn off.
5. If the engine is cranked for more than 10 seconds, the post-heat cycle will turn off.
206 STARTING AND OPERATING

NOTE:
•Engine idle speed will automatically increase to
1,000 RPM and engage the Variable Geometry Turbo-
charger at low coolant temperatures to improve engine
warm-up.
• When a diesel engine is allowed to run out of fuel or
the fuel gels at low temperatures, air is pulled into the
fuel system. If your engine has run out of fuel, refer to
“Maintenance Procedures/Priming If The Engine Has
Run Out Of Fuel” in “Maintaining Your Vehicle” for
further information.
• If the engine stalls, or if the ignition switch is left ON
for more than two minutes after the “Wait To Start”
telltale goes out, reset the grid heaters by turning the
ignition switch to the OFF position for at least five
seconds and then back ON. Repeat steps 1 through 5 of
“Starting Procedure – Engine Manifold Air Tempera-
ture Below 66°F (19°C).”Starting Fluids
WARNING!
Starting fluids or flammable liquids must never be
used in the Cummins diesel engine (see Warning
label). Never pour diesel fuel, flammable liquid,
starting fluids (ether) into the air cleaner canister, air
intake piping, or turbocharger inlet in an attempt to
start the vehicle. This could result in a flash fire and
explosion causing serious personal injury and engine
damage.
The engine is equipped with an automatic electric air
preheating system. If the instructions in this manual are
followed, the engine should start in all conditions.
5
STARTING AND OPERATING 207

the post-heat cycle of the intake manifold heater system.
The number of cycles and the length of the cycling
operation is controlled by the engine control module.
Post-heat operation can run for several minutes, and then
the electrical system and voltmeter needle will stabilize.
The cycling action will cause temporary dimming of the
headlamps, interior lamps, and also a noticeable reduc-
tion in blower motor speed.
Cold Weather Precautions
Operation in ambient temperature below 32°F (0°C) may
require special considerations. The following charts sug-
gest these options:
Fuel Operating Range
NOTE:Use “Ultra Low Sulfur Diesel Fuels” ONLY.*No. 1 Ultra Low Sulfur Diesel Fuel should only be used
where extended arctic conditions (-10°F/-23°C) exist.
NOTE:
•
Use of Climatized Ultra Low Sulfur Diesel Fuel or
Number 1 Ultra Low Sulfur Diesel Fuel results in a
noticeable decrease in fuel economy.
Fuel Operating Range Chart
5
STARTING AND OPERATING 209