2021 NISSAN TITAN fuel cap

1. Antenna (P. 4-43)
2. Cargo lamp (P. 2-52)
3. Rear sliding window (P. 2-81)4. Bed liner storage bins (if so equipped)
(P. 2-69)
5. Under rail bed lamps (if so equipped)
(P. 2-52) 6. Truck box (P. 3-36)
Tailgate (P. 3-36)
Rearview camera (P. 4-10)
7. Towing (P. 10-33)
8. Rear sonar sensors (P. 5-122)
9. Replacing bulbs (P. 8-29)
10. Fuel-filler cap (P. 3-25) Fuel-filler door (P. 3-25)
Fuel recommendation (P. 10-4)
11. Child safety rear door lock
(if so equipped) (P. 3-4)
Refer to the page number indicated in
parentheses for operating details.
NOTE:
Crew Cab model shown, King Cab® model
similar.
LII2416
EXTERIOR REAR
0-4Illustrated table of contents

Operation
The MIL will come on in one of two ways:
• MIL on steady — An emission control sys-tem malfunction has been detected.
Check the fuel-filler cap if the Loose Fuel
Cap warning appears in the vehicle infor-
mation display. If the fuel-filler cap is loose
or missing, tighten or install the cap and
continue to drive the vehicle. The
light should turn off af ter a few driving
trips. If thelight does not turn off
af ter a few driving trips, have the vehicle
inspected. It is recommended that you
visit a NISSAN dealer for this service. You
do not need to have your vehicle towed
to the dealer.
• MIL blinking — An engine misfire has been detected which may damage the emis-
sion control system. To reduce or avoid
emission control system damage:– do not drive at speeds above 45 mph (72 km/h).
– avoid hard acceleration or decelera- tion.
– avoid steep uphill grades.
– if possible, reduce the amount of cargo being hauled or towed.
The MIL may stop blinking and come on
steady. Have the vehicle inspected. It is rec-
ommended that you visit a NISSAN dealer for this service. You do not need to have
your vehicle towed to the dealer.
CAUTION
Continued vehicle operation without
having the emission control system
checked and repaired as necessary
could lead to poor driveability, reduced
fuel economy, and possible damage to
the emission control system.
Master warning light
This light comes on when various vehicle
information display warnings appear.
• Parking brake release warning
• Transmission system warning
Seat belt warning light and
chime
The light and chime remind you to fasten
your seat belts. The light illuminates when-
ever the ignition switch is placed in the ON
position and remains illuminated until the
driver's seat belt is fastened. At the same
time, the chime sounds for about 6 sec-
onds unless the driver's seat belt is se-
curely fastened. The seat belt warning light for the front
passenger will illuminate if the seat belt is
not fastened when the front passenger
seat is occupied. The front passenger seat
belt does not activate until 5 seconds af ter
the ignition switch is placed in the ON po-
sition.
For additional information, see “Seat belts”
(P. 1-16).
Security indicator light
This light blinks whenever the ignition
switch is placed in the LOCK, OFF or ACC
position. This function indicates the secu-
rity system equipped on the vehicle is op-
erational.
For additional information, see “Security
systems” (P. 2-37).
Supplemental air bag
warning light
When the ignition switch is placed in the ON
position, the supplemental air bag warning
light illuminates for about 7 seconds and
then turns off. This means the system is
operational.
2-16Instruments and controls

CAUTION
• The TPMS is not a substitute for the
regular tire pressure check. Be sure
to check the tire pressure regularly.
• If the vehicle is being driven at
speeds of less than 16 mph (25 km/h),
the TPMS may not operate correctly.
• Be sure to install the specified size of
tires to the four wheels correctly.
Malfunction Indicator Light
(MIL)
If this indicator light comes on steady or
blinks while the engine is running, it may
indicate a potential emission control mal-
function.
If this indicator light comes on steady for 20
seconds and then blinks for 10 seconds
when the engine is not running, it indicates
that the vehicle is not ready for an emission
control system inspection/maintenance
test. For additional information, see “Readi-
ness for inspection/maintenance (I/M)
test” (P. 10-59).
Operation
The MIL will come on in one of two ways:
• MIL on steady — An emission control sys- tem malfunction has been detected.
Check the fuel-filler cap if the Loose Fuel
Cap warning appears in the vehicle infor-
mation display. If the fuel-filler cap is loose
or missing, tighten or install the cap and
continue to drive the vehicle. The
light should turn off af ter a few driving
trips. If thelight does not turn off
af ter a few driving trips, have the vehicle
inspected. It is recommended that you
visit a NISSAN dealer for this service. You
do not need to have your vehicle towed
to the dealer.
• MIL blinking — An engine misfire has been detected which may damage the emis-
sion control system. To reduce or avoid
emission control system damage:– do not drive at speeds above 45 mph (72 km/h).
– avoid hard acceleration or decelera- tion.
– avoid steep uphill grades.
– if possible, reduce the amount of cargo being hauled or towed. The MIL may stop blinking and come on
steady. Have the vehicle inspected. It is rec-
ommended that you visit a NISSAN dealer
for this service. You do not need to have
your vehicle towed to the dealer.
CAUTION
Continued vehicle operation without
having the emission control system
checked and repaired as necessary
could lead to poor driveability, reduced
fuel economy, and possible damage to
the emission control system.
Master warning light
This light comes on when various vehicle
information display warnings appear.
• No key warning
• Low fuel warning
• Low windshield-washer fluid warning
• Loose fuel cap warning
• Low tire pressure warning
• 4WD error (if so equipped)
• Front & rear tire size differences (if so equipped)
2-20Instruments and controls

Loose Fuel Cap
This warning appears when the fuel-filler
cap is not tightened correctly af ter the ve-
hicle has been refueled. For additional in-
formation, see “Fuel-filler door” (P. 3-25).
Low Fuel
This warning appears when the fuel level in
the fuel tank is getting low. Refuel as soon
as it is convenient, preferably before the
fuel gauge reaches 0 (Empty).There will be
a small reserve of fuel in the tank when
the fuel gauge needle reaches 0 (Empty).
Low Tire Pressure Error —
Info
This warning appears when the low tire
pressure warning light in the meter illumi-
nates and low tire pressure is detected.
Press the ENTER button for information
about the low tire pressure. For additional
information, see “Low tire pressure warning
light” (P. 2-18) and “Tire Pressure Monitoring
System (TPMS)” (P. 5-5).
Low Washer Fluid
This warning appears when the
windshield-washer fluid is at a low level.
Add windshield-washer fluid as necessary.
For additional information, see
“Windshield-washer fluid” (P. 8-15).
Maintenance indicators
When engine oil service is due, one or more
of these icons will appear automatically to
remind you. For additional information, see
“Engine oil” (P. 8-7).
These will also appear when the user-set
reminders are met. For additional informa-
tion, see “Vehicle information display”
(P. 2-22).
Power turned off to save the battery
This warning appears af ter the ignition
switch is automatically turned off to save
the battery.
Power will turn off to save the battery
This message appears in the vehicle infor-
mation display af ter a period of time if the
ignition switch is in the ACC or the ON po-
sition and if the vehicle is in P (Park). For
additional information, see “Push-button
ignition switch positions” (P. 5-14).
Push brake and start
button to drive
This indicator appears when the shif t lever
is in the P (Park) position.
This indicator means that the engine will
start by pushing the ignition switch with
the brake pedal depressed. You can start
the engine from any position of the ignition
switch.
Push Ignition to OFF
Af ter the Push ignition to OFF warning ap-
pears, the warning will appear if the ignition
switch is placed in the ACC position when
the shif t lever is moved to the P (Park) po-
sition.
To turn off the Push warning, place the ig-
nition switch in the ON position and then in
the LOCK position.
Range XX miles
This warning appears to indicate the ap-
proximate distance remaining before the
fuel reaches 0 (Empty).
2-32Instruments and controls

CAUTION
Be careful when opening and exiting
the driver’s side rear door if the fuel-
filler door is open. This may cause dam-
age to the driver’s side rear door or
fuel-filler door if you open fully and
they make contact.
GASOLINE FUEL ENGINES
WARNING
• Gasoline is extremely flammable and
highly explosive under certain condi-
tions. You could be burned or seri-
ously injured if it is misused or mis-
handled. Always stop the engine and
do not smoke or allow open flames
or sparks near the vehicle when
refueling. •
Do not attempt to top off the fuel
tank af ter the fuel pump nozzle
shuts off automatically. Continued
refueling may cause fuel overflow,
resulting in fuel spray and possibly a
fire.
• Use only an original equipment type
fuel-filler cap as a replacement. It has
a built-in safety valve needed for
proper operation of the fuel system
and emission control system. An in-
correct cap can result in a serious
malfunction and possible injury. It
could also cause the
Malfunc-
tion Indicator Light (MIL) to come on.
• Never pour fuel into the throttle body
to attempt to start your vehicle.
• Do not fill a portable fuel container
on a truck bed liner, rubber truck bed
mat or other insulating material.
Static electricity can cause an explo-
sion of flammable liquid, vapor or
gas in any vehicle or trailer. To reduce
the risk of serious injury or death
when filling portable fuel containers:
– Always place the container on the
ground when filling.
– Do not use electronic devices
when filling.LPD2594
King Cab® models only
LPD3100
3-26Pre-driving checks and adjustments

–Keep the pump nozzle in contact
with the container while you are
filling it.
– Use only approved portable fuel
containers for flammable liquid.
CAUTION
• Do not use E-15 or E-85 fuel in your
vehicle. For additional information,
see “Fuel recommendation” (P. 10-4).
• The Loose Fuel Cap warning mes-
sage will appear if the fuel-filler cap
is not properly tightened. It may take
a few driving trips for the message to
be displayed. Failure to tighten the
fuel-filler cap properly af ter the
Loose Fuel Cap warning message ap-
pears may cause the
Malfunc-
tion Indicator Light (MIL) to
illuminate. •
Failure to tighten the fuel-filler cap
properly may cause the
Mal-
function Indicator Light (MIL) to illu-
minate. If the
light illuminates
because the fuel-filler cap is loose or
missing, tighten or install the cap and
continue to drive the vehicle. The
light should turn off af ter a few
driving trips. If thelight does not
turn off af ter a few driving trips, have
the vehicle inspected. It is recom-
mended that you visit a NISSAN
dealer for this service.
• For additional information, see “Mal-
function Indicator Light (MIL)”
(P. 2-15).
• If fuel is spilled on the vehicle body,
flush it away with water to avoid
paint damage. To remove the fuel-filler cap:
1. Turn the fuel-filler cap counterclockwise
to remove.
2. Loop the tether strap around the hook
O1while refueling.
To install the fuel-filler cap:
1. Insert the fuel-filler cap straight into the fuel-filler tube.
2. Turn the fuel-filler cap clockwise until it clicks. The fuel-filler cap is a ratcheting
type.
LPD3101
Pre-driving checks and adjustments3-27

Loose Fuel Cap warning
The Loose Fuel Cap warning appears in the
vehicle information display when the fuel-
filler cap is not tightened correctly af ter the
vehicle has been refueled. It may take a few
driving trips for the message to be dis-
played. To turn off the warning, perform the
following:
1.
Remove and install the fuel-filler cap as
previously described as soon as possible.
2. Tighten the fuel-filler cap until a single click is heard.
WARNING
• Do not adjust the steering wheel
while driving. You could lose control
of your vehicle and cause an
accident.
• Do not adjust the steering wheel any
closer to you than is necessary for
proper steering operation and com-
fort. The driver's air bag inflates with
great force. If you are unrestrained,
leaning forward, sitting sideways or
out of position in any way, you are at
greater risk of injury or death in a
crash. You may also receive serious
or fatal injuries from the air bag if you
are up against it when it inflates. Al-
ways sit back against the seatback
and as far away as practical from the
steering wheel. Always use the seat
belts.
MANUAL OPERATION (if so
equipped)
Tilt and telescopic operation
Push the lock leverO1down:
• Adjust the steering wheel up or down in direction
O2to the desired position.
• Adjust the steering wheel forward or backward in direction
O3to the desired
position.
Pull the lock lever
O1up firmly to lock the
steering wheel in place.
LPD2985LPD2597
STEERING WHEEL
3-28Pre-driving checks and adjustments

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