2018 NISSAN TITAN check engine

Radiator and hosesCheck the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks, defor-
mation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances from the underbody, otherwise
rust may form on the floor pan, frame, fuel
lines and exhaust system. At the end of
winter, the underbody should be thor-
oughly flushed with plain water, in those
areas where mud and dirt may have accu-
mulated. For additional information, refer
to the “Appearance and care” section of this
manual.
Windshield-washer fluid*: Check that
there is adequate fluid in the reservoir.The following descriptions are provided to
give you a better understanding of the sched-
uled maintenance items that should be regu-
larly checked or replaced. The maintenance
schedule indicates at which mileage/time in-
tervals each item requires service.
Items marked with “*”are recommended
by NISSAN for reliable vehicle operation.
You are not required to perform mainte-
nance on these items in order to maintain
the warranties which come with your
NISSAN. Other maintenance items and in-
tervals are required.
When applicable, additional information
can be found in the “Do-it-yourself ” section
of this manual.
NOTE: NISSAN does not advocate the use
of non-OEM approved af termarket flush-ing systems and strongly advises againstperforming these services on a NISSANproduct. Many of the af termarket flushingsystems use non-OEM approved chemi-cals or solvents, the use of which has notbeen validated by NISSAN.
For recommended fuel, lubricants, fluids,
grease, and refrigerant, refer to “Recom-
mended fluids/lubricants and capacities”
in the “Technical and consumer informa-
tion” section of this manual.
EMISSION CONTROL SYSTEM
MAINTENANCE:
Drive Belts*: Check engine drive belts for
wear, fraying or cracking and for proper
tension. Replace any damaged drive belts.
Engine Air Filter: Replace at specified in-
tervals. When driving for prolonged periods
in dusty conditions, check/replace the filter
more frequently.
Engine Coolant*:
Replace coolant at the
specified interval. When adding or replacing
coolant, be sure to use only Genuine NISSAN
Long Life Antifreeze/Coolant (blue) or
equivalent with the proper mixture. (For ad-
ditional information on the proper mixture
for your area, refer to Engine cooling system”
in the “Do-it-yourself ” section of this manual
or the “Titan Diesel Owner’s Manual”.)
NOTE: Mixing any other type of coolant or
the use of non-distilled water may reduce
the recommended service interval of the
coolant.
Engine Oil and Oil Filter: Replace engine
oil and oil filter at the specified intervals. For
recommended oil grade and viscosity refer
to “Recommended fluids/lubricants and
capacities” in the “Technical and consumer
information” section of this manual.
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS
Maintenance and schedules9-5

Engine Valve Clearance* (gasoline en-
gine only):Inspect only if valve noise in-
creases. Adjust valve clearance if neces-
sary.
Evaporative Emissions Control Vapor
Lines* (gasoline engine only): Check va-
por lines for leaks or looseness. Tighten
connections or replace parts as necessary.
Fuel Filter (diesel engine only): Replace
the fuel filter and drain the water at the
specified intervals.
Fuel Lines*: Check the fuel hoses, piping
and connections for leaks, looseness, or
deterioration. Tighten connections or re-
place parts as necessary.
CHASSIS AND BODY
MAINTENANCE:
Brake Lines and Cables: Visually inspect
for proper installation. Check for chafing,
cracks, deterioration, and signs of leaking.
Replace any deteriorated or damaged
parts immediately.
Brake Pads and Rotors: Check for wear,
deterioration and fluid leaks. Replace any
deteriorated or damaged parts immedi-
ately. Exhaust System:
Visually inspect the ex-
haust pipes, muffler and hangers for leaks,
cracks, deterioration, and damage. Tighten
connections or replace parts as necessary.
In-Cabin Microfilter: Replace at specified
intervals. When driving for prolonged peri-
ods in dusty conditions, replace the filter
more frequently.
Propeller Shaf t(s): Check for damage,
looseness, and grease leakage.
(4WD/AWD/RWD).
Steering Gear and Linkage, Axle and Sus-
pension Parts, Drive Shaf t Boots: Check
for damage, looseness, and leakage of oil
or grease. Under severe driving conditions,
inspect more frequently.
Tire Rotation: Tires should be rotated ev-
ery 5,000 miles (8,000 km) according to the
instructions under “General maintenance”
in this section. When rotating tires, check
for damage and uneven wear. Replace if
necessary.
Transmission Fluid/Oil, Differential Oil,
Transfer Case Oil: Visually inspect for signs
of leakage at specified intervals.
Replace automatic transmission fluid at
specified intervals. (For diesel engine models)
If towing a trailer, using a camper or car-top
carrier, or driving on rough or muddy roads:
∙ Replace the differential oil every 20,000 miles (32,000 km) or 24 months.
∙ Replace the automatic transmission fluid ever 30,000 miles (48,000 km) or
24 months. (For gasoline engine mod-
els)
Off-Road Maintenance: Check the follow-
ing items frequently whenever you drive
off-road through deep sand, mud or water:
∙ Brake pads and rotors
∙ Brake lines and hoses
∙ Differential, transmission and transfer case oil
∙ Steering linkage
∙ Propeller shaf t(s) and front drive shaf ts
∙ Engine air filter
∙ Clutch housing drain (4WD only)
9-6Maintenance and schedules

E–15 fuel
E-15 fuel is a mixture of approximately 15%
fuel ethanol and 85% unleaded gasoline.
E-15 can only be used in vehicles designed
to run on E-15 fuel. Do not use E-15 in your
vehicle. U.S. government regulations re-
quire fuel ethanol dispensing pumps to be
identified with small, square, orange and
black label with the common abbreviation
or the appropriate percentage for that re-
gion.
E–85 fuel
E-85 fuel is a mixture of approximately 85%
fuel ethanol and 15% unleaded gasoline.
E-85 can only be used in a Flexible Fuel
Vehicle (FFV). Do not use E-85 in your ve-
hicle. U.S. government regulations require
fuel ethanol dispensing pumps to be iden-
tified by a small, square, orange and black
label with the common abbreviation or the
appropriate percentage for that region.
Fuel containing MMT
MMT, or methylcyclopentadienyl manga-
nese tricarbonyl, is an octane boosting ad-
ditive. NISSAN does not recommend the
use of fuel containing MMT. Such fuel may
adversely affect vehicle performance, in-
cluding the emissions control system. Notethat while some fuel pumps label MMT
content, not all do, so you may have to
consult your gasoline retailer for more de-
tails.
Af termarket fuel additives
NISSAN does not recommend the use of
any af termarket fuel additives (for ex-
ample, fuel injector cleaner, octane
booster, intake valve deposit removers,
etc.) which are sold commercially. Many of
these additives intended for gum, varnish
or deposit removal may contain active sol-
vents or similar ingredients that can be
harmful to the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended can
cause persistent, heavy “spark knock.”
(“Spark knock” is a metallic rapping
noise.) If severe, this can lead to engine
damage. If you detect a persistent heavy
spark knock even when using gasoline
of the stated octane rating, or if you hear
steady spark knock while holding a
steady speed on level roads, it is recom-
mended that you have a NISSAN dealer
correct the condition. Failure to correct
the condition is misuse of the vehicle, for
which NISSAN is not responsible.Incorrect ignition timing may result in
spark knock, af ter-run and/or overheating,
which may cause excessive fuel consump-
tion or engine damage. If any of the above
symptoms are encountered, have your ve-
hicle checked. It is recommended that you
visit a NISSAN dealer for servicing.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is not
a cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
10-6Technical and consumer information

∙ Check your hitch, trailer tire pressure,vehicle tire pressure, trailer light opera-
tion, and trailer wheel lug nuts every
time you attach a trailer to the vehicle.
∙ Be certain your rearview mirrors con- form to all federal, state or local regula-
tions. If not, install any mirrors required
for towing before driving the vehicle.
∙ Determine the overall height of the ve- hicle and trailer so the required clear-
ance is known.
Trailer towing tips
In order to gain skill and an understanding
of the vehicle’s behavior, you should prac-
tice turning, stopping and backing up in an
area which is free from traffic. Steering sta-
bility and braking performance will be
somewhat different than under normal
driving conditions.
∙ Always secure items in the trailer to pre- vent load shif t while driving.
∙ Lock the trailer hitch coupler with a pin or lock to prevent the coupler from in-
advertently becoming unlatched.
∙ Avoid abrupt starts, acceleration or stops.
∙ Avoid sharp turns or lane changes. ∙ Always drive your vehicle at a moderate
speed.
∙ When backing up, hold the bottom of the steering wheel with one hand. Move
your hand in the direction in which you
want the trailer to go. Make small cor-
rections and back up slowly. If possible,
have someone guide you when you are
backing up.
Always block the wheels on both vehicle
and trailer when parking. Parking on a
slope is not recommended; however, if you
must do so:
CAUTION
If you move the shif t selector to the P
(Park) position before blocking the
wheels and applying the parking brake,
transmission damage could occur.
1. Apply and hold the brake pedal.
2. Have someone place blocks on the downhill side of the vehicle and trailer
wheels.
3. Af ter the wheel blocks are in place, slowly release the brake pedal until the
blocks absorb the vehicle load.
4. Apply the parking brake. 5. Shif t the transmission into P (Park).
6. Make sure the
indicator light (if so
equipped) indicates the transfer case is
in 4H, 4LO, or 2H and that the ATP light is
off. If the
indicator light is flashing,
or the ATP light is ON, make sure the
transmission is in P (Park) (A/T) and
turn the 4WD switch to 2WD or 4H. For
additional information, refer to “Auto-
matic transmission park warning light”
in the “Instruments and controls” sec-
tion and “Using 4-wheel drive (4WD)” in
the “Starting and driving” section of this
manual.
7. Turn off the engine.
To drive away:
1. Start the vehicle.
2. Apply and hold the brake pedal.
3. Shif t the transmission into gear.
4. Release the parking brake.
5. Drive slowly until the vehicle and trailer are clear from the blocks.
6. Apply and hold the brake pedal.
7. Have someone retrieve and store the blocks.
10-58Technical and consumer information

NOTE:
Trailer Sway Assist cannot reduce trailer
sway in all situations.∙ Be careful when passing other vehicles. Passing while towing a trailer requires
considerably more distance than nor-
mal passing. Remember, the length of
the trailer must also pass the other ve-
hicle before you can safely change
lanes.
∙ Use the Tow Mode or downshif t the transmission to a lower gear for engine
braking when driving down steep or
long hills. This will help slow the vehicle
without applying the brakes.
∙ Avoid holding the brake pedal down too long or too frequently. This could cause
the brakes to overheat, resulting in re-
duced braking efficiency.
∙ Increase your following distance to al- low for greater stopping distances
while towing a trailer. Anticipate stops
and brake gradually.
∙ NISSAN recommends that the cruise control (if so equipped) not be used
while towing a trailer. ∙ Some states or provinces have specific
regulations and speed limits for ve-
hicles that are towing trailers. Obey the
local speed limits.
∙ Check your hitch, trailer wiring harness connections, and trailer wheel lug nuts
af ter 50 miles (80 km) of travel and at
every break.
∙ When launching a boat, don’t allow the water level to go over the exhaust tail
pipe or rear bumper.
∙ Make sure you disconnect the trailer lights before backing the trailer into the
water or the trailer lights may burn out.
When towing a trailer, final drive gear oil
should be replaced and transmission
oil/fluid should be changed more fre-
quently. For additional information, refer
to the “Do-it-yourself ” section in this
manual.
Tow mode
Using tow mode is recommended when
pulling a heavy trailer or hauling a heavy
load. Press the TOW MODE switch to acti-
vate tow mode. The indicator light on the
TOW MODE switch illuminates when tow
mode is selected. Press the TOW MODE
switch again to turn tow mode off. Tow mode is automatically canceled when the
ignition switch is turned off.
Tow mode includes the following features:
∙ Grade logic — Adjusts transmission shif ts when pulling a trailer or hauling a
load up a grade.
∙ Downhill Speed Control (DSC) — auto- matically downshif ts when driving
down a grade with a trailer or heavy
load to help control vehicle speed.
Driving the vehicle in the tow mode with no
trailer/load or light trailer/light load will not
cause any damage. However, fuel
economy may be reduced and the
transmission/engine driving characteris-
tics may feel unusual.
When towing a trailer, final drive gear oil
should be replaced and transmission
oil/fluid should be changed more fre-
quently. For additional information, refer
to the “Do-it-yourself ” section of this
manual.
10-60Technical and consumer information

WARNING
A vehicle equipped with 4-Wheel Drive
(4WD) should never be tested using a
two wheel dynamometer (such as the
dynamometers used by some states for
emissions testing), or similar equip-
ment. Make sure you inform the test fa-
cility personnel that your vehicle is
equipped with 4WD before it is placed
on a dynamometer. Using the wrong
test equipment may result in transmis-
sion damage or unexpected vehicle
movement which could result in serious
vehicle damage or personal injury.
Due to legal requirements in some states
and Canadian Provinces, your vehicle may
be required to be in what is called the
“ready condition” for an
Inspection/Maintenance (I/M) test of the
emission control system.
The vehicle is set to the “ready condition”
when it is driven through certain driving
patterns. Usually, the ready condition can
be obtained by ordinary usage of the ve-
hicle. If a powertrain system component is re-
paired or the battery is disconnected, the
vehicle may be reset to a “not ready” condi-
tion. Before taking the I/M test, check the
vehicle’s inspection/maintenance test
readiness condition. Place the ignition
switch in the ON position without starting
the engine. If the Malfunction Indicator
Light (MIL) comes on steady for 20 seconds
and then blinks for 10 seconds, the I/M test
condition is “not ready”. If the MIL does not
blink af ter 20 seconds, the I/M test condi-
tion is “ready”. It is recommended that you
visit a NISSAN dealer to set the “ready con-
dition” or to prepare the vehicle for testing.
diesel engine only
For additional information, refer to the “Ti-
tan Diesel Owner’s Manual”.
This vehicle is equipped with an Event Data
Recorder (EDR). The main purpose of an
EDR is to record, in certain crash or near
crash-like situations, such as an air bag
deployment or hitting a road obstacle, data
that will assist in understanding how a ve-
hicle’s systems performed. The EDR is de-
signed to record data related to vehicle dy-
namics and safety systems for a short
period of time, typically 30 seconds or less.
The EDR in this vehicle is designed to re-
cord such data as:
∙ How various systems in your vehicle were operating;
∙ Whether or not the driver and passen- ger safety belts were buckled/fastened;
∙ How far (if at all) the driver was depress- ing the accelerator and/or brake pedal;
and,
∙ How fast the vehicle was traveling.
∙ Sounds are not recorded.
These data can help provide a better un-
derstanding of the circumstances in which
crashes and injuries occur. NOTE: EDR data
are recorded by your vehicle only if a non-
trivial crash situation occurs; no data are
recorded by the EDR under normal driving
conditions and no personal data (e.g.
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST (gas
engine only) EVENT DATA RECORDERS (EDR)
Technical and consumer information10-65

Brakewearindicators.......2-32,8-21
Parking brake operation.........5-22
Self-adjustingbrakes...........8-21
Brake assist ..................5-58
Brakefluid....................8-13
Brakes......................8-21
Brake system ..................5-56
Break-in schedule ...............5-43
Brightness/contrast button .........4-9
Brightness control Instrument panel .............2-58
Bulb check/instrument panel ........2-22
Bulb replacement ...............8-31
C
Capacities and recommended fuel/
lubricants....................10-2
Cargolightswitch...............2-60
Cargo
(See vehicle loading information) .....10-22
Car phone or CB radio ...........4-120
CDcareandcleaning.............4-86
CD player
(See audio system) .......4-59,4-65,4-72
Check tire pressure ..............2-42
Childrestraints........1-24, 1-25, 1-26, 1-29 LATCH (Lower Anchors and Tethers for
CHildren)System............. .1-29
Precautions on child
restraints......1-26, 1-34, 1-40, 1-44, 1-50
Top tether strap anchor point
locations.................. .1-31Child safety rear door lock
..........3-9
Chimes, audible reminders .........2-32
Cleaningexteriorandinterior......7-2,7-4
Climatecontrolseatswitch.........2-60
Clock setting (models with Navigation
System)......................4-7
Clock setting (models without Navigation
System)..................4-58,4-63
C.M.V.S.S. certification label .........10-18
Cold weather driving .............5-69
Compact disc (CD) player . . .4-59, 4-65, 4-72
Compass ....................2-18
Console light ..................2-92
Control panel buttons .............4-4
Back button .................4-7
Brightness/contrast button .......4-9
Enterbutton.................4-4
Withnavigationsystem..........4-4
Controls Audio controls (steering wheel) .....4-87
Heater and air conditioner controls . .4-44
Heater and air conditioner controls
(manual) ...................4-34
Coolant Capacities and recommended
fuel/lubricants...............10-2
Changing engine coolant .........8-6
Checking engine coolant level ......8-6
Engine coolant temperature gauge . .2-9
Corrosionprotection..............7-7
Cruisecontrol...........5-41,5-41,5-42
Cupholders ..................2-82
Curtain side-impact and rollover air
bag........................1-78 D
Daytime Running Light System . . .2-57, 8-29
Diesel Particulate Filter (DPF) .........8-11
DigitalvideodiscDVD ............4-93
Dimensions and weights ..........10-11
Dimmer switch for instrument panel . . .2-58
Display......................2-32
Display controls
(see control panel buttons) ..........4-4
Door locks ..................3-5,3-6
Door open warning light ...........2-25
Drivebelt.....................8-17
Drive positioner, Automatic ......3-42,3-44
Driving Coldweatherdriving...........5-69
Driving with automatic
transmission ................5-17
Precautions when starting and
driving ..................5-2,5-9
Driving the vehicle ...............5-16
E
Eco Drive Report ................5-54
Economy - fuel .................5-45
Electronic locking rear differential (E-Lock)
system......................5-52
Electronic locking rear differential (E-Lock)
systemswitch.................2-67
Emergency engine shutoff .......5-13, 6-2
Emission control information label . . . .10-19
Emission c

ontrol system warranty . . . .10-63
11-2

EngineBefore starting the engine ........5-14
Blockheater.................5-71
Capacities and recommended
fuel/lubricants...............10-2
Changing engine coolant .........8-6
Changing engine oil ............8-8
Changing engine oil filter .........8-9
Checking engine coolant level ......8-6
Checking engine oil level .........8-7
Engine compartment check
locations...................8-3
Engine coolant temperature gauge . .2-9
Engine cooling system ..........8-5
Engine oil ...................8-7
Engine oil and oil filter
recommendation .............10-7
Engine oil pressure gauge .....2-11, 2-12
Engine oil pressure warning light . . .2-25
Engine oil viscosity .............10-7
Engine serial number ..........10-18
Engine specifications ...........10-9
Engine coolant temperature gauge ....2-9
Engine oil pressure gauge .......2-11, 2-12
Enterbutton...................4-4
EventDatarecorders............10-65
Exhaust gas (Carbon monoxide) .......5-2
Explanation of maintenance items .....9-2
Explanation of scheduled maintenance
items .......................9-5
Extended storage switch ..........2-74
Eyeglasscase..................2-81 F
Flashers
(See hazard warning flasher switch) ....6-2
Flattire......................6-3
Floormatpositioningaid...........7-6
Fluid Brakefluid..................8-13
Capacities and recommended
fuel/lubricants...............10-2
Engine coolant ...............8-5
Engine oil ...................8-7
Powersteeringfluid............8-12
Windshield-washer fluid .........8-14
F.M.V.S.S. certification label .........10-18
Foglightswitch................2-59
Four-Wheel Drive ...............5-45
Front air bag system (See supplemental
restraint system) .............1-60, 1-75
Front and rear sonar system ........5-64
Front-door pocket ...............2-75
Front power seat adjustment ........1-5
Frontseats....................1-2
Fuel Capacities and recommended
fuel/lubricants...............10-2
Fuel economy ...............5-45
Fuel gauge .................2-10
Fueloctanerating.............10-6
Fuel recommendation ..........10-4
Loose fuel cap warning .........2-45
Fuel Cell Vehicle (FCV) System Tire pressure ................8-34
Fuel efficient driving tips ...........5-43
Fuel-filler door .................3-25 Fuel gauge
...................2-10
Fuses.......................8-22
Fusiblelinks...................8-24
G
Garage door opener, HomeLink® Universal
Transceiver . .2-93, 2-94, 2-95, 2-96, 2-96, 2-97
Gauge Automatic transmission fluid
temperature gauge ............2-11
Engine coolant temperature gauge . .2-9
Engine oil pressure gauge .....2-11, 2-12
Fuel gauge .................2-10
Odometer ..................2-8
Speedometer ................
2

-8
Tachometer .................2-9
Trip computer ...............2-13
Trip odometer ................2-8
Voltmeter..................2-12
General maintenance .............9-2
Glovebox....................2-78
Grocery hooks .................2-85
H
Hands-free phone system,
Bluetooth®...............4-120,4-133
Hazardwarningflasherswitch........6-2
Headlightaimingcontrol...........2-57
Headlight and turn signal switch ......2-54
Headlightcontrolswitch...........2-54
Headlights...................8-28
Headlights,aimingcontrol..........2-57
11-3