fuel cap Ram 2500 2016 Diesel Supplement

•Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory engine coolant (antifreeze)
performance, poor gas mileage, and increased emis-
sions.
Charge Air Cooler — Inter-Cooler
The charge air cooler is positioned in front of the radiator
and the air conditioner condenser. Air enters the engine
through the air cleaner and passes through the turbo-
charger, where it is pressurized. This pressurized air
rapidly reaches high temperature. The air is then directed
through a hose to the charge air cooler and through
another hose to the intake manifold of the engine. This
cooling process enables more efficient burning of fuel
resulting in fewer emissions. To guarantee optimum performance of the system, keep
the surfaces of the charge air cooler, condenser and
radiator clean and free of debris. Periodically check the
hoses leading to and from the charge air cooler for cracks
or loose clamps resulting in loss of pressure and reduced
engine performance.
Brake System
Brake Master Cylinder — Brake Fluid Level Check
The fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the “Brake System Warning Light” indicates
system failure.
The brake master cylinder has a translucent plastic
reservoir. On the outboard side of the reservoir, there is a
“MAX” mark and a “MIN” mark. The fluid level must be
kept within these two marks. Do not add fluid above the
full mark because leakage may occur at the cap.
144 MAINTAINING YOUR VEHICLE

FLUID CAPACITIES
U.S.Metric
Fuel (Approximate)
3.0L Diesel Engine 26 Gallons98.5 Liters
Diesel Exhaust Fluid Tank 8 Gallons30.3 Liters
Engine Oil With Filter
3.0L Liter Diesel Engine (SAE 5W-30 Synthetic, API
Certified Low Ash) 10.5 Quarts
10 Liters
Cooling System
3.0L Turbo Diesel Engine (MOPAR Engine Coolant/
Antifreeze 10 Year/150,000 Mile Formula OAT (Or-
ganic Additive Technology)) 11.6 Quarts
11 Liters
146 MAINTAINING YOUR VEHICLE

Yellow Telltale Indicator Lights
Engine Check/Malfunction Indicator Light (MIL)
Yellow TelltaleLight What It Means
Engine Check/Malfunction Indicator Light (MIL)
The Engine Check/Malfunction Indicator Light (MIL) is a part of an Onboard Diagnostic
System called OBD II that monitors engine and automatic transmission control systems. The
light will illuminate when the ignition is in the ON position before engine start. If the bulb
does not come on when turning the key from OFF to ON/RUN, have the condition checked
promptly.
Certain conditions, such as a loose or missing gas cap, poor quality fuel, etc., may illuminate
the light after engine start. The vehicle should be serviced if the light stays on through sev-
eral typical driving styles. In most situations, the vehicle will drive normally and will not
require towing.
When the engine is running, the MIL may flash to alert serious conditions that could lead to
immediate loss of power or severe catalytic converter damage. The vehicle should be ser-
viced as soon as possible if this occurs.
202 UNDERSTANDING YOUR INSTRUMENT PANEL

Cargo Light — If Equipped
Yellow Tell-tale Light What It Means
Cargo Light
The cargo light will illuminate when the cargo light is activated by pressing the cargo light but-
ton on the headlight switch.
Loose Fuel Filler Cap Indicator Light — If Equipped
Yellow Telltale
Light What It Means
Loose Fuel Filler Cap Indicator Light
This light will illuminate when fuel filler cap is loose. Properly close the filler cap to disen-
gage the light. If the light does not turn off, please see your authorized dealer.
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UNDERSTANDING YOUR INSTRUMENT PANEL 213

CAUTION!
See your authorized dealer, as damage to the exhaust
system could occur soon with continued operation.
Diesel Exhaust Fluid (DEF) Warning Messages
Your vehicle will begin displaying warning messages
when the DEF level reaches a driving range of approxi-
mately 200 miles (322 km). If the following warning
message sequence is ignored, your vehicle may be lim-
ited to a maximum speed of 5 MPH (8 km/H) unless DEF
is added.
•DEF Low Refill Soon — This message will display
when the low level is reached, during vehicle start up,
and with increased frequency during vehicle opera-
tion. It will be accompanied by a single chime. Ap-
proximately 5 gallons (19 Liters) of DEF is required to
refill the tank when this message is initially displayed. on pickup applications, and approximately 7 gallons
(28 Liters) are required on chassis-cab applications.
• Speed Limited to 5 MPH in XXX mi Refill DEF —
This message will continuously display if the “DEF
Low Refill Soon” message is ignored, and the fre-
quency of occurance of the chime will increase unless
up to 2 gallons (7.5 Liters) of DEF is added to the tank.
• 5 MPH Max Speed on Restart, Long Idle or Refuel
Refill DEF — This message will continuously display
when the counter reaches zero, and will be accompa-
nied by a periodic chime.
• The vehicle will only be capable of a maximum speed
of 5 MPH upon the first of the following conditions to
occur:
• If the vehicle is shutoff and restarted.
• If the vehicle is idled for an extended period of time,
approximately one hour or greater.
236 UNDERSTANDING YOUR INSTRUMENT PANEL

•If the system detects that the level of fuel in the tank
has increased.
• Add a minimum of 2 gallons (9.5 Liters) of DEF to the
tank in order to avoid vehicle operation at a maximum
speed of 5 MPH (8 km/H).
NOTE: A minimum of 2 gallons (9.5 Liters) may be
required to restore normal vehicle operation. Although
the vehicle will start normally and can be placed in gear
after this message has been initially displayed, extreme
caution should be utilized since the vehicle will only be
capable of maneuvering at a maximum speed of 5 MPH
(8 km/H).
Diesel Exhaust Fluid (DEF) Fault Warning
Messages
There are five 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. The
vehicle may be limited to a maximum speed of 5 MPH (8
km/H) if the DEF system is not serviced within less than
200 miles (322 km) of the fault being 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, each time
the vehicle is started, and periodically during driving.
The message will be accompanied by a single chime.
We recommend you drive to your nearest authorized
dealer and have your vehicle serviced as soon as
possible.
• 5 MPH Max Speed in 150 mi Service DEF System See
Dealer — This message will display if the DEF system
has not been serviced after the “Service DEF System –
See Dealer” message is displayed. This message will
continuously display until the mileage counter reaches
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UNDERSTANDING YOUR INSTRUMENT PANEL 237

zero, and will be accompanied by a periodic chime.
The message will continue to countdown until it
reaches zero unless the vehicle is serviced. We recom-
mend you drive to your nearest authorized dealer and
have your vehicle serviced immediately.
NOTE: Under some circumstances this mileage counter
may start with a value of less than 150 miles (241 km). For
example, if recurring faults are detected in a time interval
of less than 40 hours, the counter may restart at the value
where it stopped when a previous fault was temporarily
remedied, or at a minimum of 50 miles (80 km).
• 5 MPH Max Speed on Restart, Long Idle or Refuel
Service DEF See Dealer — This message will continu-
ously display when the mileage counter reaches zero,
and will be accompanied by a periodic chime. •
The vehicle will only be capable of a maximum speed
of 5 MPH upon the first of the following conditions to
occur:
• If the vehicle is shutoff and restarted.
• 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.
238 UNDERSTANDING YOUR INSTRUMENT PANEL

•The vehicle will only be capable of a maximum speed
of 5 MPH upon the first of the following conditions to
occur:
• If the vehicle is shutoff and restarted.
• 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.
• Add a minimum of 2 gallons (9.5 Liters) of DEF to the
tank in order to avoid vehicle operation at a maximum
speed of 5 MPH (8 km/H).
NOTE: A minimum of 2 gallons (9.5 Liters) may be
required to restore normal vehicle operation. Although
the vehicle will start normally and can be placed in gear
after this message has been initially displayed, extreme
caution should be utilized since the vehicle will only be
capable of maneuvering at a maximum speed of 5 MPH
(8 km/H).Diesel Exhaust Fluid (DEF) Fault Warning
Messages
There are four 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. The
vehicle may be limited to a maximum speed of 5 MPH (8
km/H) if the DEF system is not serviced within less than
200 miles (322 km) of the fault being 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, each time
the vehicle is started, and periodically during driving.
The message will be accompanied by a single chime.
We recommend you drive to your nearest authorized
dealer and have your vehicle serviced as soon as
possible.
250 UNDERSTANDING YOUR INSTRUMENT PANEL

•5 MPH Max Speed in 150 mi Service DEF System See
Dealer — This message will display if the DEF system
has not been serviced after the “Service DEF System –
See Dealer” message is displayed. This message will
continuously display until the mileage counter reaches
zero, and will be accompanied by a periodic chime.
The message will continue to countdown until it
reaches zero unless the vehicle is serviced. We recom-
mend you drive to your nearest authorized dealer and
have your vehicle serviced immediately.
NOTE: Under some circumstances this mileage counter
may start with a value of less than 150 miles (241 km). For
example, if recurring faults are detected in a time interval
of less than 40 hours, the counter may restart at the value
where it stopped when a previous fault was temporarily
remedied, or at a minimum of 50 miles (80 km). •
5 MPH Max Speed on Restart, Long Idle or Refuel
Service DEF See Dealer — This message will continu-
ously display when the mileage counter reaches zero,
and will be accompanied by a periodic chime.
• The vehicle will only be capable of a maximum speed
of 5 MPH upon the first of the following conditions to
occur:
• If the vehicle is shutoff and restarted.
• 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
4
UNDERSTANDING YOUR INSTRUMENT PANEL 251

▫Fuel Filler Cap ...................... .316
▫ Avoid Using Contaminated Fuel ...........316
▫ Bulk Fuel Storage — Diesel Fuel ..........316
▫ Diesel Exhaust Fluid Storage ..............317▫
Adding Diesel Exhaust Fluid .............318
 DIESEL EXHAUST FLUID .................322
▫ System Overview ..................... .322
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STARTING AND OPERATING 259