CAUTION!
•Diesel fuel will damage blacktop paving surfaces. Drain the filter into an appro-
priate container.
•Do not prefill the fuel filter when installing a new fuel filter. There is a possibility
debris could be introduced into the fuel filter during this action. It is best to install
the filter dry and allow the in-tank lift pump to prime the fuel system.
• If the “Water In Fuel Indicator Light” remains on, DO NOT START the enginebefore you drain water from the fuel filter to avoid engine damage.
EXHAUST REGENERATION
Under certain conditions, your Cummins®diesel engine and exhaust after-treatment
system may never reach the conditions required to remove the trapped particulate
matter. If this occurs, the “Exhaust System — Regeneration Required Now” message
will be displayed on the EVIC screen in your cluster and you will hear one chime to
alert you of this condition. Driving your vehicle at highway speeds for as little as
45 minutes can remedy the condition and allow the engine and exhaust after-
treatment system to remove the trapped particulate matter.
NOTE:
Under typical operating conditions, NO indications of regeneration state will be
displayed. If you do reach 80% of filter capacity, the following messages will assist
you in inducing and understanding the regeneration process.
Perform Service
Your vehicle will require emissions maintenance at a set interval. To help remind you
when this maintenance is due, the Electronic Vehicle Information Center (EVIC) will
display “Perform Service”. When the “Perform Service” message is displayed on the
EVIC it is necessary to have the emissions maintenance performed. Emissions mainte-
nance may include replacing the Closed Crankcase Ventilation (CCV) filter element, and
cleaning of the EGR Cooler. The procedure for clearing and resetting the “Perform
Service” indicator message is located in the appropriate Service Information.
Exhaust System — Regeneration Required Now
“Exhaust System—Regeneration Required Now” will be displayed on the EVIC if the
exhaust particulate filter reaches 80% of its maximum storage capacity.
Exhaust Filter XX% Full
Indicates that the Diesel Particulate Filter (DPF) is approaching full.
Exhaust System — Regeneration in Process Exhaust Filter XX% Full
Indicates that the Diesel Particulate Filter (DPF) is self-cleaning. Maintain your
current driving condition until regeneration is completed.
6.7L CUMMINS® DIESEL
161
ADDING FUEL — DIESEL ENGINE ONLY
• Your vehicle is equipped with a cap-less fuel system.
•
Most fuel cans will not open the flapper
door.
•A funnel is provided to open the flapper
door to allow emergency refueling with a
fuel can.
Emergency Fuel Can Refueling
1. Retrieve funnel from the jack storage
area under the passenger seat.
2. Insert the funnel into same filler pipe opening as the fuel nozzle.
3. Ensure the funnel is inserted fully to hold flapper door open.
4. Pour fuel into funnel opening.
5. Remove the funnel from filler pipe, clean off prior to putting back in the
jack storage area under the passenger
seat.
6.7L CUMMINS® DIESEL
163
DIESEL EXHAUST FLUID
Diesel Exhaust Fluid (DEF) sometimes known simply by the name of its active
component, UREA – is a key component of selective catalytic reduction (SCR)
systems, which help diesel vehicles meet stringent emission regulations. DEF is a
liquid reducing agent that reacts with engine exhaust in the presence of a catalyst to
convert smog-forming nitrogen oxides (NOx) into harmless nitrogen and water vapor.
Your vehicle is equipped with a Selective Catalytic Reduction system in order to meet
the very stringent diesel emissions standards required by the Environmental Protec-
tion Agency. Selective Catalytic Reduction (SCR) is the first and only technology in
decades to be as good for the environment as it is good for business and vehicle
performance.
The purpose of the SCR system is to reduce levels of NOx (oxides of nitrogen emitted
from engines) that are harmful to our health and the environment to an almost near-zero
level. Small quantities of Diesel Exhaust Fluid (DEF) are injected into the exhaust
upstream of a catalyst where, when vaporized, convert 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 Reduction (SCR) catalyst to meet the emission requirements.
The DEF injection system consists of the following components:
• DEF tank
• DEF pump
• DEF injector
• Electronically-heated DEF lines
• DEF control module
• NOx sensors
• NH3 sensor
• Temperature sensors
• SCR catalyst
The DEF injection system and SCR catalyst enable the achievement of diesel
emissions requirements; while maintaining outstanding fuel economy, drivability,
torque and power ratings.
6.7L CUMMINS® DIESEL
164
DEF Fill Procedure
• Remove cap from DEF tank (located behind the fuel door on drivers side of thevehicle).
• Insert DEF container or fill nozzle into DEF fill location and fill DEF tank.
• Reinstall cap onto DEF tank.
• Refer to your Diesel Supplement on the DVD for further details.
CAUTION!
• To avoid DEF spillage and overfilling, do not “top off” the DEF tank after filling.
• When DEF is spilled, clean the area immediately with water or a mild solvent.
• DO NOT OVERFILL. DEF will freeze below 12 degrees F (-11 degrees C). The
DEF system is designed to work in temperatures below the DEF freezing point,
however, if the tank is overfilled and freezes, the system could be damaged.
6.7L CUMMINS® DIESEL
166
Diesel Exhaust Fluid (DEF) Warning Messages
Your vehicle will begin displaying warning messages when the DEF level reaches a
driving range of approximately 350 miles (563 km). If the following warning message
sequence is ignored, your vehicle may be limited 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 operation.
It will be accompanied by a single chime. Approximately 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 frequency 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 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 orgreater.
• 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).
• 5 MPH Max Speed Refill DEF — The vehicle will only be capable of a maximum
speed of 5 MPH (8 km/H) when this message is displayed. Add up to 2.5 gallons
(9.5 Liters) of DEF to the tank to restore normal vehicle operation.
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).
6.7L CUMMINS® DIESEL
167
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
250 miles (402 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 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 recommend 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 continuously 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 orgreater.
• 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 vehicle 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.
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.
6.7L CUMMINS® DIESEL
168
ROADSIDE ASSISTANCE
Dial toll-free 1-800-521-2779 for U.S. Residents or 1-800-363-4869 for Canadian
Residents.
• Provide your name, vehicle identification number, license plate number, and yourlocation, including the telephone number from which you are calling.
• Briefly describe the nature of the problem and answer a few simple questions.
• You will be given the name of the service provider and an estimated time of arrival. If you feel you are in an “unsafe situation”, please let us know. With your consent,
we will contact local police or safety authorities.
INSTRUMENT CLUSTER WARNING LIGHTS
- Electronic Stability Control (ESC) Activation/Malfunction Indicator
Light
If this indicator light flashes during acceleration, apply as little throttle as possible.
While driving, ease up on the accelerator. Adapt your speed and driving to the
prevailing road conditions. To improve the vehicle's traction when starting off in deep
snow, sand or gravel, it may be desirable to switch the ESC system off.
- Tire Pressure Monitoring System (TPMS) Light
Each tire, including the spare (if provided), should be checked monthly, when cold
and inflated to the inflation pressure recommended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a
different size than the size indicated on the vehicle placard or tire inflation pressure
label, you should determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a Tire Pressure
Monitoring System (TPMS) which display in the Electronic Vehicle Information
Center (EVIC) when one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure EVIC display illuminates, you should stop and
check your tires as soon as possible, and inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes the tire to overheat and can lead to tire
failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
IF THE LIGHT STARTS FLASHING INDICATING A LOW TIRE PRESSURE, ADJUST THE AIR
PRESSURE IN THE LOW TIRE TO THE AIR PRESSURE SHOWN ON THE VEHICLE PLACARD OR
TIRE INFLATION PRESSURE LABEL LOCATED ON THE DRIVER'S DOOR.
NOTE:
After inflation, the vehicle may need to be driven for 20 minutes before the flashing light
will turn off.
WHAT TO DO IN EMERGENCIES
169
- Malfunction Indicator Light (MIL)
The Malfunction Indicator Light (MIL) is part of an onboard diagnostic system called
OBD II that monitors engine and automatic transmission control systems. The light
will illuminate when the key is in the ON/RUN 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, poor fuel quality, etc., may illuminate the light after engine start.
The vehicle should be serviced if the light stays on through several of your typical driving
cycles. In most situations, the vehicle will drive normally and will not require towing.
CAUTION!
Prolonged driving with the Malfunction Indicator Light (MIL) on could cause damage
to the engine control system. It also could affect fuel economy and driveability. If the
MIL is flashing, severe catalytic converter damage and power loss will soon occur.
Immediate service is required.
WARNING!
A malfunctioning catalytic converter, as referenced above, can reach higher tempera-
tures than in normal operating conditions. This can cause a fire if you drive slowly or
park over flammable substances such as dry plants, wood, cardboard, etc. This could
result in death or serious injury to the driver, occupants or others.
- Electronic Stability Control (ESC) OFF Indicator Light
The ESC OFF indicator will illuminate when the Electronic Stability Control (ESC) is
turned off.
- Charging System Light
This light shows the status of the electrical charging system. If the charging system light
remains on, it means that the vehicle is experiencing a problem with the charging
system.
We recommend you do not continue driving if the charging system light is on. Have
the vehicle serviced immediately.
- Oil Pressure Warning Light
This light indicates low engine oil pressure. If the light turns on while driving, stop
the vehicle and shut off the engine as soon as possible. A chime will sound for four
minutes when this light turns on.
We recommend you do not operate the vehicle or engine damage will occur. Have the
vehicle serviced immediately.
WHAT TO DO IN EMERGENCIES
172