heat Ram 2500 2016 Diesel Supplement

Filling The Def Tank In Cold Climates
Since DEF will begin to freeze at 12°F (-11°C), your
vehicle is equipped with an automatic DEF heating
system. This allows the DEF injection system to operate
properly at temperatures below 12°F (-11°C). If your
vehicle is not in operation for an extended period of time
with temperatures below 12°F (-11°C), the DEF in the
tank may freeze. If the tank is overfilled and freezes, it
could be damaged. Therefore, do not overfill the DEF
tank.
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 difference this makes varies by vehicle. Heavy-duty
pickup trucks have a 5.7-gallon tank that will display a
Full reading when about 90 percent full. This means that
drivers can consume at least 10 percent of a truly full DEF
tank without seeing any visible change in the gauge
reading. Chassis cabs have a larger 9-gallon tank, and
will display a Full reading when about 75 percent full. So
drivers can consume 25 percent of a truly full DEF tank
without seeing any visible change in the gauge reading.
Extra care should be taken when filling with portable
containers to avoid overfilling. Note the level of the DEF
gauge in your instrument cluster. On pickup applica-
tions, you may safely add a maximum of 2 gallons of DEF
from portable containers when your DEF gauge is read-
ing ½ full. On Chassis Cab applications a maximum of 2
gallons may be added when the DEF gauge is reading ¾
full.
5
STARTING AND OPERATING 321

DIESEL EXHAUST FLUID
Your vehicle is equipped with a Selective Catalytic Re-
duction system to meet the very stringent diesel emis-
sions standards required by the Environmental Protec-
tion Agency.
The purpose of the SCR system is to reduce levels of NOx
(oxides of nitrogen emitted from engines) that are harm-
ful to our health and the environment to a near-zero level.
Small quantities of Diesel Exhaust Fluid (DEF) is injected
into the exhaust upstream of a catalyst where, when
vaporized, it converts smog-forming nitrogen oxides
(NOx) into harmless nitrogen (N2) and water vapor
(H2O), two natural components of the air we breathe.
You can operate with the comfort that your vehicle is
contributing to a cleaner, healthier world environment
for this and generations to come.
System Overview
This vehicle is equipped with a Diesel Exhaust Fluid
(DEF) injection system and a Selective Catalytic Reduc-
tion (SCR) catalyst to meet the emission requirements.
The DEF injection system consists of the following com-
ponents:
•DEF tank
• DEF pump
• DEF injector
• Electronically-heated DEF lines
• DEF control module
• NOx sensors
322 STARTING AND OPERATING

JUMP STARTING
WARNING!
•To prevent personal injury or damage to clothing,
do not allow battery fluid to contact eyes, skin or
fabrics. Do not lean over a battery when connecting
jumper cables or allow cable clamps to touch each
other. Keep open flames or sparks away from
battery vent holes. Always wear eye protection
when working with batteries.
• Do not use a booster battery or any other booster
source that has a greater than 12 Volt system, i.e., do
not use a 24 Volt power source.
NOTE: Replacement batteries should both be of equal
size to prevent damage to the vehicle’s charging system.
Your vehicle is equipped with two 12 Volt batteries. If it
becomes necessary to use a booster battery with jumper cables to start a vehicle’s engine because its batteries are
discharged, the following procedure should be used:
Set the parking brake and place an automatic transmis-
sion in PARK (or NEUTRAL for a manual transmission).
Turn off lights, heater and other electrical loads. Observe
charge indicator (if equipped) in both batteries. If the
indicator (if equipped) is light or yellow on either battery,
replace that battery.
CAUTION!
Use the jump start procedure only when the charge
indicator (if equipped) in both batteries is dark in the
center. Do not attempt jump starting when either
battery charge indicator (if equipped) is bright or
yellow. If the charge indicator (if equipped) has a
green dot in the center, failure to start is not due to a
discharged battery and cranking system should be
checked.
326 WHAT TO DO IN EMERGENCIES

•Mixing engine coolant (antifreeze) types is not recom-
mended and can result in cooling system damage. If
HOAT and OAT coolant are mixed in an emergency,
have a authorized dealer drain, flush, and refill with
OAT coolant (conforming to MS.90032) as soon as
possible.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that the engine coolant
(antifreeze) will return to the radiator from the coolant
expansion bottle.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
• Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is
overheated. Do not loosen or remove the cap to cool
an overheated engine. Heat causes pressure to
build up in the cooling system. To prevent scalding
or injury, do not remove the pressure cap while the
system is hot or under pressure.
• Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant (antifreeze) is
a regulated substance requiring proper disposal. Check
with your local authorities to determine the disposal
rules for your community. To prevent ingestion by ani-
mals or children, do not store ethylene glycol-based
358 MAINTAINING YOUR VEHICLE

Cruise Light..............................58
Diesel Fuel ............................. .108
Diesel Fuel Requirements ....................108
Bulk Storage Of ........................117
Diesel Fuel System, Re-Priming ...............135
Disposal Antifreeze (Engine Coolant) ................142
Door Ajar ...............................35
Door Ajar Light ...........................35
Draining Fuel/Water Separator Filter ...........131
Electronic Throttle Control Warning Light .........32
Electronic Vehicle Information Center (EVIC) ......63
Engine ................................ .124
Air Cleaner .......................... .128
Block Heater ...................... .100 , 107
Break-In Recommendations .................13
Compartment ......................... .124Coolant (Antifreeze)
.....................147
Identification ......................... .124
Idling .............................. .104
Oil............................. .126 , 147
Oil Filler Cap ......................... .127
Filters Air Cleaner .......................... .128
Engine Fuel .......................... .131
Engine Oil ....................... .128 , 147
Engine Oil Disposal .....................128
Flashers Turn Signal ............................57
Fluid Capacities ......................... .146
Fluid Level Checks Brake ............................... .144
Fluid, Brake ............................ .150
Fluids, Lubricants And Genuine Parts ...........147
Fog Lights ...............................46
392 INDEX - RAM 1500

New Vehicle Break-In Period..................13
Oil Pressure Light ..........................31
Oil, Engine ............................. .126
Capacity ............................ .146
Change Interval ....................... .127
Dipstick ............................. .126
Disposal ............................. .128
Filter ........................... .128 , 147
Filter Disposal ........................ .128
Materials Added To ..................... .128
Pressure Warning Light .................31,34
Recommendation ...................... .126
Viscosity ............................ .127
Radiator Cap (Coolant Pressure Cap) ...........139
Remote Starting System ......................12 Schedule, Maintenance
.....................152
Seat Belts Reminder ..............................24
Security Alarm ............................28
Selection Of Coolant (Antifreeze) ..............147
Signals, Turn .............................57
Starting .................................97
Automatic Transmission ...................98
Engine Block Heater .................100 , 107
Remote ...............................12
Starting Procedures .........................97
Starting Procedures (Diesel Engines) .............97
Tip Start ................................98
Ti re s Pressure Warning Light ....................40
Transfer Case Fluid ............................... .150
394 INDEX - RAM 1500

Disposal Of Used Coolant.................358
Drain, Flush, And Refill ...................355
Points To Remember .....................359
Pressure Cap ......................... .358
Radiator Cap ......................... .358
Selection Of Coolant (Antifreeze) ........355 , 374
Cruise Light ............................ .223
Diesel Exhaust Brake ...................... .281
Diesel Fuel ............................. .307
Diesel Fuel Requirements ....................307
Bulk Storage Of ....................... .316
Diesel Fuel System, Re-Priming ...............350
Disposal Antifreeze (Engine Coolant) ................358
Door Ajar .............................. .201
Door Ajar Light ......................... .201
Draining Fuel/Water Separator Filter ...........344Electronic Range Select (ERS)
.................294
Electronic Speed Control (Cruise Control) ........176
Electronic Throttle Control Warning Light ........198
Electronic Vehicle Information Center (EVIC) ......228
Emergency, In Case Of Jump Starting ......................... .326
Engine ................................ .333
Air Cleaner .......................... .340
Block Heater ...................... .265 , 280
Break-In Recommendations ................173
Compartment ..................... .333 , 334
Coolant (Antifreeze) .....................374
Identification ..................... .333 , 334
Idling .............................. .275
Jump Starting ......................... .326
Oil............................. .336 , 374
Oil Filler Cap ......................... .338
Oil Synthetic ......................... .339
Runaway ............................ .306
8
INDEX - RAM 2500 / 3500 / 4500 / 5500 397

Materials Added To..................... .339
Pressure Warning Light ...............197 , 200
Recommendation ...................... .337
Synthetic ............................ .339
Viscosity ............................ .338
Overdrive .............................. .296
Overdrive OFF Switch ..................... .296
Perform Service Indicator, Reset ...............382
Power Take-Off Adapter ...................... .303
Take-Off Operation ..................... .303
PTO (Power Take-Off) ..................... .303
Radiator Cap (Coolant Pressure Cap) ...........355
Remote Starting System .....................170
Resetting Perform Service Indicator ............382Seat Belts
Reminder ............................ .190
Security Alarm .......................... .194
Selection Of Coolant (Antifreeze) ..............374
Shifting ............................... .284
Automatic Transmission ..................286
Manual Transmission ....................298
Signals, Turn ........................... .222
Speed Control Accel/Decel .......................... .180
Cancel .............................. .178
Speed Control (Cruise Control) ................176
Starting ............................... .260
Automatic Transmission ..................261
Engine Block Heater .................265 , 280
Manual Transmission ....................261
Remote ............................. .170
Starting Procedures ....................... .260
400 INDEX - RAM 2500 / 3500 / 4500 / 5500