service NISSAN TITAN 2019 Owner´s Manual

CALIFORNIA PROPOSITION 65 WARNING
WARNING
Operating, servicing and maintaining a passenger
vehicle or off-highway motor vehicle can expose you to
chemicals including engine exhaust, carbon monoxide,
phthalates, and lead, which are known to the State of
California to cause cancer and birth defects or other
reproductive harm. To minimize exposure, avoid
breathing exhaust, do not idle the engine except as
necessary, service your vehicle in a well-ventilated area
and wear gloves or wash your hands frequently when
servicing your vehicle. For more information go to
www.P65Warnings.ca.gov/passenger-vehicle.

This diesel engine supplement includes in-
formation needed to correctly operate and
maintain all Cummins diesel engine sys-
tems available on this model. For addi-
tional information about vehicle specific
systems, refer to the Owner’s Manual pro-
vided with your vehicle.
All information, specifications and illustra-
tions in this manual are those in effect at
the time of printing. NISSAN reserves the
right to change specifications, perfor-
mance, design, or component suppliers
without notice and without obligation.
From time to time, NISSAN may update or
revise this manual to provide Owners with
the most accurate information currently
available. Please carefully read and retain
with this manual all revision updates sent
to you by NISSAN to ensure you have ac-
cess to accurate and up-to-date informa-
tion regarding your vehicle. Current ver-
sions of vehicle Owner’s Manuals and any
updates can also be found in the Owner
section of the NISSAN website at
https://owners.nissanusa.com/nowners/
navigation/manualsGuide.If you have questions concerning any infor-
mation in your Owner’s Manual, it is recom-
mended that you contact NISSAN Con-
sumer Affairs for this service. For additional
information, refer to the NISSAN CUS-
TOMER CARE PROGRAM page in your 2019
TITAN Owner’s Manual for contact informa-
tion.
IMPORTANT INFORMATION ABOUT
THIS MANUAL
You will see various symbols in this manual.
They are used in the following ways:
WARNING
This is used to indicate the presence of
a hazard that could cause death or seri-
ous personal injury. To avoid or reduce
the risk, the procedures must be fol-
lowed precisely.
CAUTION
This is used to indicate the presence of
a hazard that could cause minor or
moderate personal injury or damage to
your vehicle. To avoid or reduce the risk,
the procedures must be followed
carefully.
FOREWORD
WHEN READING THIS SUPPLEMENT

Preventive maintenance is the easiest and
least expensive type of maintenance. Keep
records of regularly scheduled mainte-
nance and follow the maintenance sched-
ule recommendations outlined in the Titan
Owner’s Manual.
Use the correct fuel, lubricating oil, and
coolant in your engine. Blending engine oil
with fuel is prohibited for engines with an
af tertreatment system. For additional in-
formation, refer to the “Capacities and
specifications” section of this manual.
A NISSAN dealership knows your vehicle.
When you require any service or have any
questions, they will be glad to assist you
with the extensive resources available to
them.
DIESEL ENGINE OPERATION
The operation of the diesel engine in your
new vehicle varies from the operation of
traditional gasoline engines found in other
vehicles. Reading this supplement will fa-
miliarize you and other operators of the
vehicle with the unique maintenance and
operating procedures that will prolong the
life of the diesel engine and related sys-
tems.
ENGINE BREAK-IN
RECOMMENDATIONS
∙ Warm up the engine before operating itunder load
∙ Do not operate the engine at idle for extended periods
∙ Prevent engine lugging by selecting the appropriate transmission gear
∙ Monitor the vehicle oil pressure and temperature gauges
∙ Check fluid levels frequently (Oil & Cool- ant)
∙ Vary the throttle position at highway speeds when carrying weight or towing
NOTE:
Extended light or no load operation will
extend the time before the engine
reaches its full efficiency. If the engine is
operated in this manner, reduced fuel
economy and power may be observed.
The aforementioned procedure should be
observed for the first 6,000 miles. The en-
gine run-in is improved by operating the
vehicle under load.
DIESEL FUEL SYSTEM
The diesel engine fuel system is a pressur-
ized two-stage filtration system and con-
sists of: ∙ A frame-mounted primary (stage 1) fuel filter containing water/fuel separator,
electric fuel pump, and water in fuel
drain valve
∙ An engine-mounted secondary (stage 2) fuel filter
∙ A fuel injector for each cylinder (8 total)
∙ A high-pressure fuel pump
∙ A high-pressure fuel rail for each cylin- der bank (2 total)
∙ High-pressure fuel lines from the high- pressure fuel pump to the right bank
fuel rail, right bank fuel rail to the lef t
bank fuel rail, and fuel rails to fuel injec-
tors.
GENERAL INFORMATION
1-2Introduction

The stage 1 fuel filter separates water and
filters impurities from the fuel. The stage 2
fuel filter filters finer impurities from the
diesel fuel. The stage 1 and stage 2 fuel
filters should be changed at the recom-
mended service interval or when indicated
by the information display. For additional
information, refer to “Maintenance and
schedules” and “Instruments and controls”
sections of the Titan Owner’s Manual.
The water/fuel separator should be
drained when indicated by illumination of
the water in fuel warning light.
NOTE:
Proper fuel filter maintenance and
prompt water draining when the water
in the fuel filter warning light illuminates
is essential to prevent damage to fuel
injection system components. Ignoring
the water in fuel warning light can cause
your vehicle to go into a reduced power
mode and has the potential for fuel sys-
tem damage.ENGINE PROTECTION MODE
The diesel engine in this vehicle is equipped
with electronically controlled fuel and
emission systems. Both systems monitor
engine temperatures and pressures, and
then modif y engine operation accordingly.
It is normal for the diesel engine to operate
under these modified conditions for short
durations of time. If the engine operates
under the modified conditions for ex-
tended periods of time, and the service en-
gine soon light is illuminated, have the sys-
tem checked. It is recommended that you
visit a NISSAN dealer for this service as
soon as possible.
LUBRICATION SYSTEM
It is important to change the engine oil at
the recommended service intervals to
maintain oil viscosity. Extending the oil and
filter change interval beyond the recom-
mended interval can negatively affect en-
gine performance, fuel economy and en-
gine life. For additional information, refer to
the “Do-it-yourself ” section of this manual.
GLOW PLUGS
The diesel engine glow plug system con-
sists of:∙ Eight Glow Plugs (one per cylinder)
∙ Glow Plug Control Module - Uses input from the Engine Coolant Temperature
Sensor
The glow plugs are energized momentarily
when the ignition is first turned on. The
length of time that the glow plugs are en-
ergized varies depending on engine and
environmental conditions. The required
time for the glow plugs to be energized
decreases as coolant temperature in-
creases. For additional information, refer to
the “Starting and stopping the engine” sec-
tion of this manual.
Introduction1-3

NISSAN CARES . . .
Both NISSAN and your NISSAN dealer are dedicated to serving all your automotive needs. Your satisfaction with your vehicle and your
NISSAN dealer are our primary concerns. YourNISSAN dealer is always available to assist you with all your automobile sales and service
needs.
However, if there is something that your
NISSAN dealer cannot assist you with or
you would like to provide NISSAN directly
with comments or questions, please con-
tact the NISSAN Consumer Affairs Depart-
ment using our toll-free number:
For U.S. customers
1-800-NISSAN-1
(1-800-647-7261)
For Canadian customers 1-800-387-0122 The Consumer Affairs Department will ask
for the following information:
– Your name, address, and telephone
number
– Vehicle identification number (attached to the top of the instrument panel on the
driver’s side)
– Date of purchase
– Current odometer reading
– Your NISSAN dealer’s name
– Your comments or questions
OR You can write to NISSAN with the informa-
tion at:
For U.S. customers
Nissan North America, Inc.
Consumer Affairs Department
P.O. Box 685003
Franklin, TN 37068-5003
or via e-mail at:
[email protected]
For Canadian customers Nissan Canada Inc.
5290 Orbitor Drive
Mississauga, Ontario L4W 4Z5
or via e-mail at:
[email protected]
If you prefer, visit us at:
www.nissanusa.com (for U.S. customers)
or
www.nissan.ca (for Canadian customers)
We appreciate your interest in NISSAN and thank you for buying a quality NISSAN vehicle.
NISSAN CUSTOMER CARE PROGRAM

Low Diesel Exhaust Fluid (DEF)
warning light
When this warning light illuminates, the
DEF fluid needs to be topped off.
For additional information, refer to the “Fuel
and refueling” section of this manual.
Diesel Particulate Filter (DPF)
warning light
When the warning light illuminates, it indi-
cates that particulate matter is accumu-
lated to the specified amount of the limit in
the filter and the filter needs to regenerate.
For additional information, refer to “Diesel
Particulate Filter (DPF)” in the “Maintenance”
section of this manual.
CAUTION
If you continue driving with the DPF
warning light on without performing
the filter regeneration, this will lead to
particle matter overload in the filter. If
this happens, the Malfunction Indicator
Light (MIL) will turn on to indicate the
necessity that a NISSAN or qualified
dealer performs the service regenera-
tion. The performance of the engine
might be limited to protect the DPF
system.
Vehicle information display
The vehicle information display shows vari-
ous meters and gauges that pertain to the
diesel engine. The information that can be
found within the vehicle information dis-
play is as follows:
Exhaust temperature gauge
The exhaust temperature gauge is part of
the Auxiliary Gauges in the vehicle informa-
tion display.
Turbo meter
The turbo meter shows the amount of en-
gine boost.Diesel Exhaust Fluid (DEF) LEVEL
This gauge indicates the level of DEF in the
diesel system.
The DEF LEVEL information screen can be
turned on or off in the vehicle information
display. For additional information, refer to
“How to use the vehicle information dis-
play” in the “Vehicle information display”
section of the Titan Owner’s Manual.
Water in Fuel warning light
If this light illuminates, pull off of the road in
a safe area, stop the engine and immedi-
ately drain the water from the fuel sedi-
ment filter. For additional information, refer
to “Draining water” in the “Do-it-yourself ”
section of this manual.
Malfunction warning light (red)
If the warning light illuminates this indi-
cates either coolant temperature is above
a critical threshold or the exhaust tem-
peratures are above a critical threshold.
When illuminated this lamp indicates the
need to stop the engine as soon as it can
be safely done. The engine must remain
shut down until the engine can be repaired.
Instrument Panel2-3

9. DEF System Error 5MPH Speed LimitSee Dealer
10. Exhaust Filter Overloaded See Owner’s Manual For Drive Pattern
11. Exhaust Filter Regeneration Started
12. Exhaust Filter Overloaded Engine Power Reduced See Owner’s Manual
13. Exhaust Filter Overloaded Immediate Service Required
14. Engine Warming Keep Foot on Brake
15. Engine Shutdown Stop Safely
16. Engine Power Reduced
17. Service Air Filter
18. Engine Oil Service Due XX
19. Coolant Level Low: See Owner’s Manual
20. Low Fuel Pressure: See Owner’s Manual
DEF Low XX% Refill Soon
This message appears when the DEF be-
comes low. It is recommended that the
DEF be topped off. For additional informa-
tion, refer to “Diesel Exhaust Fluid (DEF)” in
the “Fueling and refueling” section of this
manual. DEF Low XX% Limited Engine Power
Soon
This message appears as the DEF be-
comes low. Engine power will be limited
soon. It is recommended that the DEF be
topped off. For additional information, refer
to “Diesel Exhaust Fluid (DEF)” in the “Fueling
and refueling” section of this manual.
DEF Low Limited Engine Power In XX
Miles
This message appears when the DEF be-
comes low. Engine power will be limited in
the approximate distance shown. It is rec-
ommended that the DEF be topped off. For
additional information, refer to “Diesel Ex-
haust Fluid (DEF)” in the “Fueling and refuel-
ing” section of this manual.
DEF Empty 5mph Limit Soon See Own-
er’s Manual
This message appears when the DEF be-
comes empty. It is recommended that the
DEF be refilled as soon as possible. The
following conditions will limit the vehicle
speed when this message is shown:
∙ Engine shutdown and restart
∙ Engine is idled for approximately 1 hour ∙ Control module detects a fuel level in-
crease For additional information, refer
to “Diesel Exhaust Fluid (DEF)” in the “Fu-
eling and refueling” section of this
manual.
DEF Empty Refill DEF See Owner’s
Manual
This message appears when the DEF is
empty and the vehicle speed is reduced to
a maximum of 5 mph. It is recommended
that the DEF be refilled as soon as possible.
For additional information, refer to “Diesel
Exhaust Fluid (DEF)” in the “Fueling and re-
fueling” section of this manual.
DEF System Error See Dealer
This message appears when the DEF sys-
tem encounters an error. It is recom-
mended that you have the system
checked by a NISSAN dealer or other quali-
fied technician. For additional information,
refer to “Diesel Exhaust Fluid (DEF)” in the
“Fueling and refueling” section of this
manual.
Instrument Panel2-5

DEF System Error 5MPH Speed Limit
XXX Miles
This message appears when the DEF sys-
tem encounters an error. The vehicle
speed will be reduced in the approximate
distance shown. For additional informa-
tion, refer to “Diesel Exhaust Fluid (DEF)” in
the “Fueling and refueling” section of this
manual.
DEF System Error 5MPH Speed Limit
Soon
This message appears when the DEF sys-
tem has encountered an error. The follow-
ing conditions will reduce the vehicle speed
when this message is shown:∙ Engine shutdown and restart
∙ Engine is idled for approximately 1 hour
∙ Control module detects a fuel level in- crease
For additional information, refer to “Diesel
Exhaust Fluid (DEF)” in the “Fueling and re-
fueling” section of this manual.
DEF System Error 5MPH Speed Limit:
See Dealer
This message appears when the DEF sys-
tem encounters an error and the vehicle speed is reduced. It is recommended that
you have the system checked by a NISSAN
dealer or other qualified technician. For ad-
ditional information, refer to “Diesel Ex-
haust Fluid (DEF)” in the “Fueling and refuel-
ing” section of this manual.
Exhaust Filter Overloaded: See Owner’s
Manual For Drive Pattern
This message appears when the diesel
particulate filter starts to overload. The Die-
sel Particulate Filter (DPF) warning light will
also illuminate.
When this message is
seen, the vehicle should be driven on the
highway where the road conditions
safely allow and the speed limit permits,
over 55 mph (90 km/h) for at least
45 minutes. For additional information, re-
fer to “Diesel Particulate Filter (DPF)” in the
“Do-it-yourself ” section of this manual.
Exhaust Filter Regeneration Started
This message appears when the auto-
matic regeneration has started to clean
the exhaust filter. For additional informa-
tion, refer to “Diesel Particulate Filter (DPF)”
in the “Do-it-yourself ” section of this
manual. Exhaust Filter Overloaded Engine Power
Reduced: See Owner’s Manual
This message appears when the diesel
particulate filter starts to overload. Engine
torque and speed will be reduced. The Die-
sel Particulate Filter (DPF) warning light will
also blink.
If the Malfunction Indicator Light (MIL) is off,
the vehicle should be driven on the high-
way where the road conditions safely allow
and the speed limit permits, over 55 mph
(90 km/h) for at least 45 minutes.
If the MIL illuminates, the exhaust filter can-
not be regenerated by driving the vehicle. It
is recommended that you have the system
checked by a NISSAN dealer or other quali-
fied technician.
For additional information, refer to “Diesel
Particulate Filter (DPF)” in the “Do-it-
yourself ” section of this manual.
Exhaust Filter Overloaded Immediate
Service Required
This message appears when the diesel
particulate filter is overloaded. The Diesel
Particulate Filter (DPF) warning light blinks
quickly and the Malfunction Indicator
Lamp (MIL) illuminates. When this message
is displayed, the engine speed and torque
2-6Instrument Panel

will be reduced. It is recommended that
you visit a NISSAN dealer or qualified tech-
nician immediately. For additional informa-
tion, refer to “Diesel Particulate Filter (DPF)”
in the “Do-it-yourself ” section of this
manual.
Engine Warming Keep Foot on Brake
This message appears during cold start
conditions when:∙ Brake pedal is depressed
∙ Push-button start button has been pressed
∙ Coolant temperature is below thresh- old
Keep foot on the brake until the engine
starts, which can take up to approximately
4 seconds. For additional information, refer
to “Starting the diesel engine” in the “Start-
ing and stopping the engine” section of this
manual. Engine Shutdown: Stop Safely
This message appears 30 seconds before
the vehicle is shutdown due to an above
normal operating exhaust temperature.
The Malfunction Indicator Light (MIL) and
malfunction warning light (red) will illumi-
nate. It is recommended that you visit a
NISSAN dealer or other qualified technician
immediately.
Engine Power Reduced
This message appears when the engine is
not operating under normal conditions. For
additional information, refer to “Engine Pro-
tection Mode” in the “Introduction” section
of this manual.
Service Air Filter
This warning appears when the air filter
needs to be serviced. For additional infor-
mation, refer to “Air cleaner” in the ”Mainte-
nance” section of the Titan Diesel Owner’s
Manual.Engine Oil Service due XX
This message is a count down of mileage
until the next engine oil service is due. Mile-
age until next required engine oil service
will be displayed by the vehicle information
display and will decrease at a higher rate as
vehicle operation severity (high duty cycle)
increases.
Coolant Level Low: See Owner’s Manual
This warning appears when the coolant
level in the reservoir is below the MIN level.
For additional information, refer to “Engine
Cooling System” in this manual.
Low Fuel Pressure: See Owner’s Manual
This message appears when low fuel pres-
sure has been detected downstream of
the stage 2 fuel filter. This message can
indicate the fuel filters are restricted and
require replacement. It is recommended
that you have the system checked by a
NISSAN dealer or other qualified technician.
Instrument Panel2-7

ENGINE BLOCK HEATER (if so
equipped)
The power cable to operate the heater is
available as a service part from an autho-
rized NISSAN dealer.
For additional information, refer to “Engine
block heater” in the “Starting and driving”
section of the Titan Owner’s Manual.
3-4Starting and Stopping the Engine