2021 NISSAN TITAN transmission

When driving on rough roads,
• Set the 4WD shif t switch to 4H or 4LO.
• Drive carefully according to the road sur-face conditions.
When the vehicle is stuck,
• Set the 4WD shif t switch to 4H or 4LO.
• Place stones or wooden blocks under the tires to free the vehicle.
• Use the Electronic locking rear differential (E-Lock) system (if so equipped). For addi-
tional information, see “Electronic locking
rear differential (E-lock) system” (P. 5-112).
• If it is difficult to free the vehicle, rock the vehicle back and forth between reverse
and drive gears.
• If the vehicle is stuck deep in mud, place stones or wooden blocks under the tires.
Then try the recovery procedures above.
Tire chains may be effective.
CAUTION
• Do not spin the tires excessively. Tires
will sink deep into the mud, making it
difficult to free the vehicle.
• Avoid shif ting gears with the engine
running at high speeds as this may
cause malfunction.
4WD shif t switch operations
• Shif t the 4WD shif t switch to either the 2WD, 4H or 4LO position, depending on
driving conditions.
• If the 4WD shif t switch is operated
while making a turn, accelerating or
decelerating or if the key switch is
turned off while in the 4H or 4LO, you
may feel a jolt. This is not abnormal.
• You may hear some noise as the sys-
tem shif ts or engages. This is not ab-
normal.
CAUTION
• When driving straight, shif t the 4WD
shif t switch to the 2WD or 4H posi-
tion. Do not move the 4WD shif t
switch when making a turn or
reversing.
• Do not shif t the 4WD shif t switch
while driving on steep downhill
grades. Use the engine brake and low
automatic transmission gears (M1 or
M2) for engine braking.
• Do not operate the 4WD shif t switch
with the rear wheels spinning.
• Before placing the 4WD shif t switch
in the 4H position from 2WD, ensure
the vehicle speed is less than 62 mph
(100 km/h). Failure to do so can dam-
age the 4WD system.
• Never shif t the 4WD shif t switch be-
tween 4LO and 4H while driving.
LSD2463
Starting and driving5-109

WARNING
• Do not stop or park the vehicle over
flammable materials such as dry
grass, waste paper or rags. They may
ignite and cause a fire. •
Safe parking procedures require that
both the parking brake be set and the
transmission placed into P (Park).
Failure to do so could cause the ve-
hicle to move unexpectedly or roll
away and result in an accident. Make
sure the shif t lever has been pushed
as far forward as it can go and cannot
be moved without depressing the
foot brake pedal. •
Never leave the engine running while
the vehicle is unattended.
• Do not leave children unattended in-
side the vehicle. They could unknow-
ingly activate switches or controls or
make the vehicle move. Unattended
children could become involved in
serious accidents.
• To help avoid risk of injury or death
through unintended operation of the
vehicle and/or its systems, do not
leave children, people who require
the assistance of others or pets unat-
tended in your vehicle. Additionally,
the temperature inside a closed ve-
hicle on a warm day can quickly be-
come high enough to cause a signifi-
cant risk of injury or death to people
and pets.
1. Firmly apply the parking brake.
2. Move the shif t lever to the P (Park) position.
WSD0050
PARKING/PARKING ON HILLS
5-114Starting and driving

Do not attempt to start the engine by
pushing.
CAUTION
• Automatic transmission models can-
not be push-started or tow-started.
Attempting to do so may cause
transmission damage.
• Three way catalyst equipped models
should not be started by pushing
since the three way catalyst may be
damaged.
• Never try to start the vehicle by tow-
ing it; when the engine starts, the for-
ward surge could cause the vehicle to
collide with the tow vehicle.
WARNING
• Do not continue to drive if your ve-
hicle overheats. Doing so could cause
engine damage or a vehicle fire.
• To avoid the danger of being scalded,
never remove the radiator or coolant
reservoir cap while the engine is still
hot. When the radiator or coolant res-
ervoir cap is removed, pressurized
hot water will spurt out, possibly
causing serious injury.
• Do not open the hood if steam is
coming out.
If your vehicle is overheating (indicated by
an extremely high temperature gauge
reading), or if you feel a lack of engine
power, detect abnormal noise, etc. take the
following steps:
1. Move the vehicle safely off the road, ap- ply the parking brake and move the shif t
lever to P (Park).
Do not stop the engine.
2. Turn off the air conditioner. Open all the windows, move the heater or air condi-
tioner temperature control to maximum
hot and fan control to high speed. 3. If engine overheating is caused by
climbing a long hill on a hot day, run the
engine at a fast idle (approximately 1,500
rpm) until the temperature gauge indi-
cation returns to normal.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from the ra-
diator before opening the hood. If steam
or coolant is escaping, turn off the en-
gine. Do not open the hood further until
no steam or coolant can be seen.
5. Open the engine hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
6. Visually check drive belts for damage or looseness. Also check if the cooling fan
is running. The radiator hoses and radia-
tor should not leak water. If coolant is
leaking, the water pump belt is missing
or loose, or the cooling fan does not run,
stop the engine.
PUSH STARTING IF YOUR VEHICLE OVERHEATS
6-12In case of emergency

WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into con-
tact with, or get caught in, engine belts
or the engine cooling fan. The engine
cooling fan can start at any time.
7. Af ter the engine cools down, check the coolant level in the engine coolant reser-
voir tank with the engine running. Add
coolant to the engine coolant reservoir
tank if necessary. It is recommended
that you visit a NISSAN dealer for this
service. When towing your vehicle, all jurisdictional
and local regulations for towing must be
followed. Incorrect towing equipment
could damage your vehicle. Towing in-
structions are available from a NISSAN
dealer. Local service operators are gener-
ally familiar with the applicable laws and
procedures for towing. To assure proper
towing and to prevent accidental damage
to your vehicle, NISSAN recommends hav-
ing a service operator tow your vehicle. It is
advisable to have the service operator
carefully read the following precautions:
WARNING
• Never ride in a vehicle that is being
towed.
• Never get under your vehicle af ter it
has been lif ted by a tow truck.
• If your vehicle has front recovery
hooks as original factory equipment,
do not remove or modif y them. If it
was not equipped with front recov-
ery hooks, do not install them. Either
action could affect proper operation
of the front air bag system resulting
in injury or death.
CAUTION
• When towing, make sure that the
transmission, axles, steering system
and powertrain are in working condi-
tion. Use dollies or flatbed if any of
the listed systems are not working.
• Always attach safety chains before
towing.
For additional information about towing
your vehicle behind a Recreational Vehicle
(RV), see "Flat towing for 2-Wheel Drive
(2WD) vehicle" (P. 10-55) or "Flat towing for
4-Wheel Drive (4WD) vehicle" (P. 10-55).
TOWING RECOMMENDED BY
NISSAN
NISSAN recommends towing your vehicle
based upon the type of drivetrain. For addi-
tional information, refer to the diagrams in
this section to ensure that your vehicle is
properly towed.
TOWING YOUR VEHICLE
In case of emergency6-13

Four-Wheel Drive (4WD) models
with automatic transmission
NISSAN recommends that towing dollies
be used when towing your vehicle or place
the vehicle on a flatbed truck as illustrated.
CAUTION
Never tow 4WD models equipped with
an automatic transmission with any of
the wheels on the ground as this may
cause serious and expensive damage
to the transfer case and transmission.
NOTE:
If the battery is completely drained the
transmission will not manually shif t to
other positions.
LCE2141
6-14In case of emergency

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 transmission
models with the rear wheels on the
ground or four wheels on the ground
(forward or backward), as this may
cause serious and expensive dam-
age to the transmission. If it is neces-
sary to tow the vehicle with the front
wheels raised always use towing dol-
lies under the rear wheels.
• When towing automatic transmis-
sion models with the front wheels on
the ground or on towing dollies: –
Place the ignition switch in the
OFF position and secure the steer-
ing wheel in a straight-ahead po-
sition with a rope or similar de-
vice. Never secure the steering
wheel by placing the ignition
switch in the LOCK position. This
may cause damage to the lock
mechanism (for models with a
steering lock mechanism).
NOTE:
If the battery is completely drained the
transmission will not manually shif t to
other positions.
When towing long distances or speeds in
excess of 50 mph (80 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 emergency6-15

8 Do-it-yourself
Maintenance precautions.......................8-2
Engine compartment check locations ...........8-3
Engine cooling system ..........................8-5
Checking engine coolant level ................8-6
Changing engine coolant ....................8-6
Engine oil .......................................8-7
Checking engine oil level .....................8-7
Changing engine oil and oil filter ..............8-7
Automatic Transmission Fluid (ATF) .............8-13
Power Steering Fluid (PSF) ......................8-13
Brake fluid ...................................... 8-14
Windshield-washer fluid ........................8-15
Windshield-washer fluid reservoir ...........8-15
Battery......................................... 8-16
Jump starting ............................... 8-18
Variable voltage control system
(if so equipped) ................................. 8-19
Drive belt ....................................... 8-19
Spark plugs .................................... 8-20
Replacing spark plugs .......................8-20
Air cleaner ..................................... 8-21
In-cabin microfilter .......................... 8-21Windshield wiper blades
........................8-22
Cleaning .................................... 8-22
Replacing ................................... 8-22
Brakes ......................................... 8-23
Fuses .......................................... 8-24
Engine compartment .......................8-24
Passenger compartment ...................8-25
Battery replacement ........................... 8-27
NISSAN Intelligent Key® ......................8-27
Lights .......................................... 8-29
Headlights .................................. 8-29
Fog lights (if so equipped) ...................8-29
Daytime Running Light (DRL)
(if so equipped) .............................. 8-30
Exterior and interior lights ...................8-32
Wheels and tires ............................... 8-35
Tire pressure ................................
8-35
Tir

e labeling ................................. 8-39
Types of tires ................................ 8-41
Tire chains .................................. 8-42
Changing wheels and tires ..................8-43

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,
apply 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
jewelry, such as rings, watches, etc.
before working on your vehicle.
• Always wear eye protection when-
ever 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 battery cable before work-
ing 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 nec-
essary to work under the vehicle,
support it with safety stands.
• Keep smoking materials, flame and
sparks away from the fuel tank and
battery.
• Because the fuel lines are under high
pressure even when the engine is off,
it is recommended that you visit a
NISSAN dealer for service of the fuel
filter or fuel lines.
CAUTION
• Do not work under the hood while
the engine 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 ve-
hicle fluids can damage the environ-
ment. Always conform to local regula-
tions for disposal of vehicle fluid.
•
Never leave the engine or automatic
transmission related component
harnesses disconnected while the
ignition switch is in the ON position.
• Never connect or disconnect the bat-
tery or any transistorized compo-
nent while the ignition switch is in
the ON position.
NOTE:
If the battery is dead the transmission
will not manually shif t to other positions.
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, see
“Owner's Manual/Service Manual order in-
formation” (P. 10-60).
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