2015 Ram 1500 Fuel system

•If the vehicle is idled for an extended period of time,
approximately one hour or greater.
• If the system detects that the level of fuel in the tank
has increased.
• 5 MPH Max Speed Service DEF System See Dealer —
This message will continuously display, and will be
accompanied by a periodic chime. Although the ve-
hicle can be started and placed in gear, the vehicle will
only operate at a maximum speed of 5 MPH. Your
vehicle will require towing, see your authorized dealer
for service.
• 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 ac-
companied by a single chime. Your Malfunction Indi-
cator Light will be continuously illumined. We highly
recommend you drive to your nearest authorized
dealer if the message appears while engine is running.
NOTE: When this message is displayed, the engine can
still be started. However, the vehicle will only operate at
a maximum speed of 5 MPH.
RAM Active Air System
Your vehicle is equipped with an advanced Ram Active
Air system that provides enhanced performance, espe-
cially when towing under demanding hot or high alti-
tude conditions. If the DID displays the message “Active
Airbox Service Required See Dealer”, vehicle perfor-
mance may be reduced until service is performed by an
authorized RAM dealer.
198 UNDERSTANDING YOUR INSTRUMENT PANEL

4. Press and hold theRIGHTarrow button for one
second to access the ”Fuel Filter Life Reset” screen.
5. Press and hold the RIGHTarrow button for one
second to access the Reset Confirmation screen.
6. Press and release the UPorDOWN arrow button to
select “Yes” or “No” then press and hold the RIGHT
arrow button to reset the Fuel Filter Life.
7. Press and release the Uparrow button to exit the EVIC
screen once the Fuel Filter Life is 100%
NOTE: If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary, repeat this procedure.
Oil Life Reset
Your vehicle is equipped with an engine oil change
indicator system. The “Oil Change Required” message
will flash in the DID display for approximately 10 seconds after a single chime has sounded, to indicate the
next scheduled oil change interval. The engine oil change
indicator system is duty cycle based, which means the
engine oil change interval may fluctuate, dependent
upon your personal driving style.
NOTE:
Use the steering wheel DID controls for the
following procedure(s)
Vehicles Equipped With Passive Entry
1. Without Pushing the brake pedal, push the ENGINE START/STOP button and cycle the ignition to the
ON/RUN position (do not start the engine.)
2. Push and release the DOWNarrow button to scroll
downward through the main menu to “Vehicle Info”.
3. Push and release the RIGHTarrow button to access
the ”Oil Life” screen.
200 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Cooling System Tips — Automatic
Transmission ........................ .225
 ENGINE BLOCK HEATER — IF EQUIPPED . . .227
▫ Block Heater Usage ....................227
 DIESEL EXHAUST BRAKE
(ENGINE BRAKING) ....................227
 AUTOMATIC TRANSMISSION — IF
EQUIPPED .......................... .230
▫ Key Ignition Park Interlock ...............232
▫ Brake/Transmission Shift Interlock System . . .232
▫ Six-Speed Automatic Transmission — If
Equipped .......................... .232
 MANUAL TRANSMISSION — IF EQUIPPED . .244
▫ Shifting ............................ .244▫
Downshifting ....................... .246
▫ Reverse Shifting ..................... .247
 AUXILIARY SWITCHES — IF EQUIPPED .....248
 POWER TAKE OFF OPERATION — IF
EQUIPPED (CHASSIS CAB ONLY) ..........248
▫ Stationary Mode ..................... .249
▫ Mobile Mode ........................ .250
 ENGINE RUNAWAY ....................251
 FUEL REQUIREMENTS ..................252
▫ Fuel Specifications ....................253
▫ Bio-Diesel Fuel Requirements .............254
 ADDING FUEL — 2500/3500 DIESEL
MODELS ........................... .257
 ADDING FUEL — CHASSIS CAB MODELS . . .260
204 STARTING AND OPERATING

▫Fuel Filler Cap ...................... .261
▫ Avoid Using Contaminated Fuel ...........261
▫ Bulk Fuel Storage — Diesel Fuel ..........261
▫ Diesel Exhaust Fluid Storage ..............262▫
Adding Diesel Exhaust Fluid .............263
 DIESEL EXHAUST FLUID .................266
▫ System Overview ..................... .266
4
STARTING AND OPERATING 205

•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. 3. Turn the ignition switch to the ON position and watch
the instrument panel cluster lights.
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 fur-
ther information.
4. Turn the ignition switch to the START position and crank the engine. Do not press the accelerator during
starting.
212 STARTING AND OPERATING

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. 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.
• 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).”
216 STARTING AND OPERATING

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, start-
ing 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.
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
ignition is in the OFF position, remove the key fob
from the vehicle, and lock the vehicle.
(Continued)
4
STARTING AND OPERATING 217

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.
• Climatized Ultra Low Sulfur Diesel Fuel is a blend of
Number 2 Ultra Low Sulfur and Number 1 Ultra Low
Sulfur Diesel Fuels which reduces the temperature at
which wax crystals form in fuel.
• The fuel grade should be clearly marked on the pump
at the fuel station.
• The engine requires the use of “Ultra Low Sulfur
Diesel Fuel”. Use of incorrect fuel could result in
engine and exhaust system damage. Refer to “Fuel
Requirements” in “Starting And Operating” for fur-
ther information.
• Commercially available fuel additives are not neces-
sary for the proper operation of your Cummins®
Fuel Operating Range Chart
4
STARTING AND OPERATING 219