2019 NISSAN TITAN ECU

4. Lower the vehicle slowly until the tiretouches the ground. Then, with the
wheel nut wrench, tighten the wheel
nuts securely in the sequence illus-
trated (
1,2,3,4,5,6). Lower the
vehicle completely.
WARNING
∙ Incorrect wheel nuts or improperly tightened wheel nuts can cause the
wheel to become loose or come off.
This could cause an accident.
∙ Do not use oil or grease on the wheel studs or nuts. This could cause the
nuts to become loose.
∙ Retighten the wheel nuts when the vehicle has been driven for 600 miles
(1,000 km) (also in cases of a flat tire,
etc.).
As soon as possible, tighten the wheel
nuts to the specified torque with a
torque wrench.
Wheel nut tightening torque:
Non-XD models: 98 f t-lb (133 N·m) XD models:
131 f t-lb (177 N·m)
The wheel nuts must be kept tightened
to specification at all times. It is recom-
mended that wheel nuts be tightened to
specifications at each lubrication inter-
val.
Adjust tire pressure to the COLD pres-
sure.
COLD pressure: Af ter vehicle has been
parked for 3 hours or more or driven less
than 1 mi. (1.6 km).
COLD tire pressures are shown on the
Tire and Loading Information label af-
fixed to the driver side center pillar.
Af ter adjusting tire pressure to the COLD
tire pressure, the display (if so equipped)
of the tire pressure information may
show higher pressure than the COLD tire
pressure af ter the vehicle has been
driven more than 1 mi. (1.6 km). This is
because the tire pressure increases as
the tire temperature rises. This does not
indicate a system malfunction. 5. Securely store the tools and jacking
equipment in the vehicle. For additional
information, refer to the “Getting the
spare tire and tools (Crew and King
Cab® models),” “Getting the spare tire
and tools (Single Cab models)” or “Get-
ting the spare tire and tools (King Cab®
models not equipped with rear seat)” in
this section.
WARNING
∙ Always make sure that the spare tireand jacking equipment are properly
secured af ter use. Such items can be-
come dangerous projectiles in an ac-
cident or sudden stop.
∙ The spare tire is designed for emer- gency use. For additional information,
refer to “Wheels and tires” in the “Do-
it-yourself ” section of this manual.
In case of emergency6-13

Two-Wheel Drive models with
automatic transmission
NISSAN recommends that your vehicle be
towed with the driving (rear) wheels off the
ground or place the vehicle on a flatbed
truck as illustrated.
CAUTION
∙ Never tow automatic transmissionmodels with the rear wheels on the
ground or four wheels on the ground
(forward or backward), as this may
cause serious and expensive damage
to the transmission. If it is necessary
to tow the vehicle with the front
wheels raised always use towing dol-
lies under the rear wheels.
∙ When towing automatic transmission models with the front wheels on the
ground or on towing dollies: – Place the ignition switch in the OFF
position and secure the steering
wheel in a straight-ahead position
with a rope or similar device. Never
secure the steering wheel by plac-
ing the ignition switch in the LOCK
position. This may cause damage
to the lock mechanism (for models
with a steering lock mechanism).
When towing long distances or speeds in
excess of 60 mph (97 km/h), remove the
propeller shaf t before towing to prevent
damage to the transmission. It is recom-
mended that you visit a NISSAN dealer for
additional information.VEHICLE RECOVERY (freeing a
stuck vehicle)
There are two options to recover a stuck
vehicle: pulling and rocking. For additional
information regarding these options,
please refer to the following sections.
LCE2311
In case of emergency6-19

When installing Genuine NISSAN floor mats,
follow the installation instructions provided
with the mat and the following:1. With the ignition in the OFF position, the shif t lever in P (Park) position and with
the parking brake fully applied, position
the floor mat in the floorwell so that the
floor mat grommet holes are aligned
with the hook(s).
2. Secure the grommet holes into the hook(s) and ensure that the floor mat is
properly positioned.
3. Make sure the floor mat does not inter- fere with pedal operation. With the igni-
tion still in the OFF position, the shif t
lever in the P (Park) position and with
the parking brake applied, fully apply
and release all pedals. The floor mat
must not interfere with pedal opera-
tion or prevent the pedal from return-
ing to its normal position.
It is recommended that you visit a NISSAN
dealer for details about installing the floor
mats in your vehicle. The illustration shows the location of the
floor mat positioning hooks.
SEAT BELTS
The seat belts can be cleaned by wiping
them with a sponge dampened in a mild
soap solution. Allow the belts to dry com-
pletely in the shade before using them. For
additional information, refer to “Seat belt
maintenance” in the “Safety—Seats, seat
belts and supplemental restraint system”
section of this manual.
WARNING
Do not allow wet seat belts to roll up in
the retractor. NEVER use bleach, dye or
chemical solvents to clean the seat
belts, since these materials may se-
verely weaken the seat belt webbing.
Positioning hooks
LAI2088
7-6Appearance and care

When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The fol-
lowing are general precautions which
should be closely observed.
WARNING
∙ Park the vehicle on a level surface, ap-ply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. Move the shif t le-
ver to P (Park)
∙ Be sure the ignition switch is in the OFF or LOCK position when perform-
ing any parts replacement or repairs.
∙ If you must work with the engine run- ning, keep your hands, clothing, hair
and tools away from moving fans,
belts and any other moving parts.
∙ It is advisable to secure or remove any loose clothing and remove any jew-
elry, such as rings, watches, etc. be-
fore working on your vehicle.
∙ Always wear eye protection whenever you work on your vehicle. ∙
The automatic engine cooling fan (if so
equipped) may come on at any time
without warning, even if the ignition
switch is in the OFF position and the
engine is not running. To avoid injury,
always disconnect the negative bat-
tery cable before working near the fan.
∙ If you must run the engine in an en-
closed space such as a garage, be sure
there is proper ventilation for exhaust
gases to escape.
∙ Never get under the vehicle while it is supported only by a jack. If it is neces-
sary to work under the vehicle, sup-
port it with safety stands.
∙ Keep smoking materials, flame and sparks away from the fuel tank and
battery.
∙ Because the fuel lines on gasoline en- gine models are under high pressure
even when the engine is off, it is rec-
ommended that you visit a NISSAN
dealer for service of the fuel filter or
fuel lines.
CAUTION
∙ Do not work under the hood while theengine is hot. Turn the engine off and
wait until it cools down. ∙
Avoid contact with used engine oil and
coolant. Improperly disposed engine
oil, engine coolant and/or other vehicle
fluids can damage the environment. Al-
ways conform to local regulations for
disposal of vehicle fluid.
∙ Never leave the engine or automatic
transmission related component har-
nesses disconnected while the igni-
tion switch is in the ON position.
∙ Never connect or disconnect the bat- tery or any transistorized component
while the ignition switch is in the ON
position.
This “Do-it-yourself ” section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
A Genuine NISSAN service manual is also
available. For additional information, refer
to “Owner’s Manual/Service Manual order
information” in the “Technical and con-
sumer information” section of this manual.
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and
could affect warranty coverage. If in doubt
about any servicing, it is recommended
that you have it done by a NISSAN dealer.
MAINTENANCE PRECAUTIONS
8-2Do-it-yourself

WARNING
∙ Prolonged and repeated contact withused engine oil may cause skin
cancer.
∙ Try to avoid direct skin contact with used oil. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
∙ Keep used engine oil out of reach of children.
CAUTION
Be careful not to burn yourself. The en-
gine oil may be hot.
7. Clean and reinstall the drain plug and a new washer. Securely tighten the drain
plug with a wrench. Do not use exces-
sive force.
Drain plug tightening torque: 25 f t-lb (34 N·m) 8. Refill engine with recommended oil
through the oil filler opening, then in-
stall the oil filler cap securely.
For additional information on drain
and refill capacity, refer to “Recom-
mended fluids/lubricants and capaci-
ties” in the “Technical and consumer
information” section of this manual.
The drain and refill capacity depends
on the oil temperature and drain time.
Use these specifications for reference
only. Always use the dipstick to deter-
mine when the proper amount of oil is
in the engine.
9. Start the engine. Check for leakage around the drain plug and oil filter. Cor-
rect as required.
10. Turn the engine off and wait more than 15 minutes. Check the oil level with the
dipstick. Add engine oil if necessary.
For additional information on changing the
Cummins 5.0L engine oil, refer to the Titan
Diesel Owner’s Manual.
CHANGING ENGINE OIL FILTER
1. Park the vehicle on a level surface and apply the parking brake.
2. Turn the engine off.
3. Remove bolts
Aand skid plate.
Skid plate (Type A) (if so equipped)
LDI3005
Do-it-yourself8-9

Caution symbols for batteryWARNING
1No smoking, No exposed flames, NoSparks Do not expose the battery to electrical sparks, flames or smoking. Hydrogen gas generated by the
battery is explosive. Explosive gases can cause blindness or injury.
2Shield eyes Handle the battery cautiously. Always wear eye protection glasses to protect against explosion or
battery acid.
3Keep away from childrenNever allow children to handle the battery. Keep the battery out of the reach of children.
4Battery acidDo not allow battery fluid to contact your skin, eyes, fabrics, or painted surfaces. Sulfuric acid can
cause blindness or severe burns. Af ter touching a battery or battery cap, do not touch or rub your eyes. Thoroughly wash your hands. If the acid contacts your eyes, skin or clothing, immediately
flush with water for at least 15 minutes and seek medical attention. Battery fluid is acid. If the bat- tery fluid gets into your eyes or onto your skin, it could cause loss of your eyesight or burns.
5Note operating instructions Before handling the battery, read this instruction carefully to ensure correct and safe handling.
6Explosive gas Hydrogen gas generated by battery fluid is explosive. Explosive gases can cause blindness or
injury.
∙ If the battery is labeled "do not open" it is maintenance free and battery fluid should not be checked. It is recommended that you visita NISSAN dealer or a qualified specialist workshop to confirm the battery’s performance.
∙ Keep the battery surface clean and dry. Clean the battery with a solution of baking soda and water.
∙ Make certain the terminal connections are clean and securely tightened.
∙ Push the ignition switch to the OFF position and wait 2 minutes before disconnecting the battery.
∙ If the vehicle is not to be used for 30 days or longer, disconnect the negative (-) battery terminal cable to prevent discharge.
BATTERY
Do-it-yourself8-15

WARNING
Be sure the engine and ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to re-
move the spark plugs. An incorrect
socket can damage the spark plugs.
If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.
WARNING
∙ Operating the engine with the air cleaner removed can cause you or
others to be burned. The air cleaner
not only cleans the air, it stops the
flame if the engine backfires. If it isn’t
there, and the engine backfires, you
could be burned. Do not drive with the
air cleaner removed, and be careful
when working on the engine with the
air cleaner removed. ∙ Never pour fuel into the throttle body
or attempt to start the engine with
the air cleaner removed. Doing so
could result in serious injury.
To remove the filter from the air cleaner,
push the tabs and pull the cover upward.
The viscous paper type filter element
should not be cleaned and reused. Replace
the air filter according to the maintenance
log shown in the “Maintenance and sched-
ules” section of this manual.
When replacing the air filter, wipe the inside
of the air cleaner housing and the cover
with a damp cloth.
NOTE:
Af ter installing a new air cleaner filter,
make sure the air cleaner cover is seated
in the housing and latch the tabs.
VK56VD engine
LDI2960
AIR CLEANER
8-20Do-it-yourself

Under some driving or climate conditions,
occasional brake squeak, squeal or other
noise may be heard. Occasional brake
noise during light to moderate stops is nor-
mal and does not affect the function or
performance of the brake system.
Proper brake inspection intervals should
be followed.For additional information on
the appropriate maintenance schedule re-
garding brake inspections, refer to "Gaso-
line standard maintenance" or "Diesel
standard maintenance" in the "Mainte-
nance and schedules" section of this
manual.
Two types of fuses are used. Type
Aand
Bare used in the fuse boxes in the engine
compartment. Type
Bis used in the pas-
senger compartment fuse box.
Type
Bfuses are provided as spare fuses.
They are stored in the passenger compart-
ment fuse box.
Type
Afuses can be installed in the engine
compartment and passenger compart-
ment fuse boxes. If a type
Afuse is used to replace a typeB
fuse, the typeAfuse will not be level with
the fuse pocket as shown in the illustration.
This will not affect the performance of the
fuse. Make sure the fuse is installed in the
fuse box securely.
Type
Bfuses cannot be used to replace
type
Afuses.
LDI0455LDI0457
FUSES
Do-it-yourself8-23