2019 NISSAN TITAN fuel filter

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

7 Do-it-yourself
Engine compartment check locations........... 7-2
Engine cooling system .......................... 7-3
Checking engine coolant level ................ 7-4
Changing engine coolant ..................... 7-4
Engine oil ........................................ 7-5
Checking engine oil level ..................... 7-5
Changing engine oil ..........................7-6
Changing engine oil filter .....................7-8 Fuel filter (CUMMINS 5.0L)
........................ 7-9
Fuel filter replacement (stage 1 and 2) ........ 7-9
Diesel Particulate Filter (DPF) .................... 7-10
Automatic regeneration ......................7-11
Drive belt ........................................7-11
Air cleaner ...................................... 7-12
In-cabin microfilter .......................... 7-12

1. Windshield-washer fluid reservoir
2. Fuse box
3. Fuse/Fusible link box
4. Engine coolant reservoir
5. Fuel filter (Stage 2)
6. Engine oil filler cap
7. Brake fluid reservoir
8. Air cleaner
9. Battery
10. Power steering fluid reservoir
11. Radiator cap
12. Engine oil dipstick
13. Drive belt location
14. Fuse/Fusible link box
15. Battery
Cummins 5.0L
LDI2870
ENGINE COMPARTMENT CHECK
LOCATIONS
7-2Do-it-yourself

CAUTION
Your vehicle may require more frequent
maintenance if it operates on biodiesel
blends between 6% and 10% (B6 and
B10). To avoid damage to your vehicle,
the oil, oil filter, and fuel filter will need
to be replaced af ter a shorter time in-
terval than if your vehicle was operat-
ing on pure petroleum-based diesel.
For additional information, refer to the
“Maintenance and schedules” section in
the Titan Owner’s Manual.
CHECKING ENGINE OIL LEVEL
NOTE:
The factory fill oil may include a red dye
that is added for manufacturing quality
processes. The dye makes the oil appear
to be red. This is normal. The red dye will
be flushed from the engine af ter ap-
proximately 4–5 oil changes.1. Park the vehicle on a level surface and
apply the parking brake.
2. Start the engine and let it idle until it reaches operating temperature.
3. Turn off the engine. Wait more than
10 minutes for the oil to drain back
into the oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way.
LDI2872
ENGINE OIL
Do-it-yourself7-5

CAUTION
Be sure to remove any old gasket mate-
rial remaining on the sealing surface of
the engine. Failure to do so could lead to
an oil leak and engine damage.7. Fill the new filter with clean engine oil.
8. Coat the gasket on the new filter with clean engine oil.
9. Screw on the oil filter until a slight resis- tance is felt, then tighten an additional
3/4 turn.
10. Start the engine and check for leakage around the oil filter. Correct as required.
11. Install skid plate in reverse order of re- moval.
12. Turn the engine off and wait more than 10 minutes. Check the oil level. Add en-
gine oil if necessary.
CAUTION
Your vehicle may require more frequent
maintenance if it operates on biodiesel
blends between 6% and 10% (B6 and
B10). To avoid damage to your vehicle,
the oil, oil filter, and fuel filter will need
to be replaced af ter a shorter time in-
terval than if your vehicle was operat-
ing on pure petroleum-based diesel.
For additional information, refer to the
“Maintenance and schedules” section in
the Titan Owner’s Manual.
FUEL FILTER REPLACEMENT (stage
1 and 2)
A NISSAN dealer can change the stage 1
and stage 2 fuel filters. The service proce-
dure can be found in the NISSAN Service
Manual.
Improper servicing can result in the vehicle
not starting, fuel leaks and engine stalling.
Fuel filter
LDI2921
FUEL FILTER (CUMMINS 5.0L)
Do-it-yourself7-9

WARNING
∙ Stay clear from the exhaust outlet andexhaust gases. These can cause burns
or personal injury.
∙ To avoid the risk of personal injury or fire, do not park the vehicle over flam-
mable materials such as dry grass,
waste paper or rags, as hot vehicle
components may ignite them.
CAUTION
To maintain maximum Diesel Particu-
late Filter (DPF) performance, follow
these precautions:
∙ Use ultra low-sulfur fuel.
∙ Use an engine oil specified by NISSAN.For additional information, refer to
“Recommended fluids/lubricants and
capacities” in the “Capacities and
specifications” section of this manual.
If an engine oil not specified by
NISSAN is used, it could cause DPF
malfunction or reduced fuel
efficiency. ∙ Do not modif y the DPF, muffler or ex-
haust pipe. Otherwise it could affect
the DPF performance and cause a
malfunction.
∙ Do not kick or hit the DPF. The DPF has a built-in catalyst system in the muf-
fler. Such an impact could cause DPF
damage.
The DPF reduces the amount of materials
that affect the environment by collecting
particulate matter included in exhaust
gases. Normally, particulate matter accu-
mulated in the DPF is automatically burned
and converted to harmless substances
during driving. However, particulate matter
collected in the DPF cannot be burned un-
der the following conditions: ∙ When vehicle speed remains below 5 mph (8 km/h) for a long period of time.
∙ When the engine is frequently stopped and restarted within 10 minutes.
∙ When the vehicle is frequently used for short journeys of 10 minutes or less.
∙ When the engine is frequently stopped before it has warmed up. In these cases, it becomes difficult to burn
particulate matter that has accumulated
in the DPF. As a result, the DPF warning light
will illuminate/blink and one of the follow-
ing messages will display on the vehicle
information display (in order of severity):
∙ Exhaust Filter Overloaded See Owner’s Manual for Drive Pattern
∙ Exhaust Filter Overloaded Engine Power Reduced See Owner’s Manual
∙ Exhaust Filter Overloaded Immediate Service Required
For additional information, refer to “Meters
and gauges" in the “Instrument panel” sec-
tion of this manual.
CAUTION
∙ If the vehicle continues to be driven with the DPF warning light illumi-
nated and without doing the regen-
eration process, the fail-safe will limit
the engine revolutions and/or torque.
In this case, it is recommended to con-
tact a NISSAN dealer to have the Ser-
vice Regeneration procedure
performed.
DIESEL PARTICULATE FILTER (DPF)
7-10Do-it-yourself