2018 NISSAN TITAN check engine light

Af ter step 3 is performed, when the
ignition switch is pushed without de-
pressing the brake pedal, the ignition
switch position will change to the ON
position.
4. Push the ignition switch while depress- ing the brake pedal within 10 seconds
af ter the chime sounds. The engine will
start.
NOTE: ∙ When the ignition switch is pushed to
the ON position or the engine is
started by the above procedure, the
Intelligent Key battery discharge in-
dicator appears in the vehicle infor-
mation display even when the Intelli-
gent Key is inside the vehicle. This is
not a malfunction. To turn off the In-
telligent Key battery discharge indi-
cator, touch the ignition switch with
the Intelligent Key again.
∙ If the Intelligent Key battery dis-
charge indicator appears, replace the
battery as soon as possible. For addi-
tional information, refer to “Battery
replacement” in the “Do-it-yourself ”
section of this manual.NISSAN VEHICLE IMMOBILIZER
SYSTEM
The NISSAN Vehicle Immobilizer System
will not allow the engine to start without
the use of the registered key.
If the engine fails to start using a registered
key (for example, when interference is
caused by another registered key, an auto-
mated toll road device or automatic pay-
ment device on the key ring), restart the
engine using the following procedures:
1. Leave the ignition switch in the ON po- sition for approximately 5 seconds.
2. Place the ignition switch in the OFF or LOCK position, and wait approximately
10 seconds.
3. Repeat steps 1 and 2.
4. Restart the engine while holding the device (which may have caused the in-
terference) separate from the regis-
tered key.
If the no start condition re-occurs, NISSAN
recommends placing the registered key on
a separate key ring to avoid interference
from other devices. ∙ Make sure the area around the vehicle is
clear.
∙ Check fluid levels such as engine oil, coolant, brake fluid, Diesel Exhaust Fluid
(Diesel only) and windshield-washer
fluid as frequently as possible, or at least
whenever you refuel.
∙ Check that all windows and lights are clean.
∙ Visually inspect tires for their appear- ance and condition. Also check tires for
proper inflation.
∙ Check that all doors are closed.
∙ Position seat and adjust head restraints/headrests.
∙ Adjust inside and outside mirrors.
∙ Fasten seat belts and ask all passen- gers to do likewise.
∙ Check the operation of warning lights when the ignition switch is placed in the
ON position. For additional information,
refer to “Warning lights, indicator lights
and audible reminders” in the “Instru-
ments and controls” section of this
manual.
BEFORE STARTING THE ENGINE
5-14Starting and driving

WARNING
If the shif t lever cannot be moved from
the P (Park) position while the engine is
running and the brake pedal is de-
pressed, the stop lights may not work.
Malfunctioning stop lights could cause
an accident injuring yourself and
others.
Accelerator downshif t
— in D (Drive) position —
For passing or hill climbing, depress the
accelerator pedal to the floor. This shif ts
the transmission down into a lower gear,
depending on the vehicle speed.
Fail-safe
When the fail-safe operation occurs, please
note that the transmission will be locked in
any of the forward gears according to the
condition.If the vehicle is driven under extreme
conditions, such as excessive wheel
spinning and subsequent hard braking,
the fail-safe system may be activated.
This will occur even if all electrical cir-
cuits are functioning properly. In this
case, place the ignition switch in the OFF
position and wait for 3 seconds. Then
place the ignition switch back in the ON
position. The vehicle should return to its
normal operating condition. If it does not
return to its normal operating condition,
have the transmission checked and re-
paired, if necessary. It is recommended
that you visit a NISSAN dealer for this
service.
WARNING
∙ Be sure the parking brake is fully re-
leased before driving. Failure to do so
can cause brake failure and lead to an
accident.
∙ Do not release the parking brake from outside the vehicle.
∙ Do not use the shif t lever in place of the parking brake. When parking, be
sure the parking brake is fully
engaged.
∙ 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.
PARKING BRAKE
5-22Starting and driving

∙ Keep your engine tuned up.
∙ Follow the recommended scheduledmaintenance.
∙ Keep the tires inflated to the correct pressure. Low tire pressure increases
tire wear and lowers fuel economy.
∙ Keep the wheels in correct alignment. Improper alignment increases tire wear
and lowers fuel economy.
∙ For vehicles equipped with
, use
4H or 4L position only when necessary.
4-wheel drive operation lowers fuel
economy.
∙ Use the recommended viscosity engine oil. For additional information, refer to
“Engine oil and oil filter recommenda-
tions” in the “Technical and consumer
information” section of this manual.
WARNING
∙ For 4WD equipped vehicles, do not at-tempt to raise two wheels off the
ground and shif t the transmission to
any drive or reverse position with the
engine running. Doing so may result
in drivetrain damage or unexpected
vehicle movement which could result
in serious vehicle damage or personal
injury.
∙ Do not attempt to test a 4WD equipped vehicle on a 2-wheel dyna-
mometer (such as the dynamometers
used by some states for emissions
testing), or similar equipment even if
the other two wheels are raised off the
ground. Make sure you inform 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 drive-
train damage or unexpected vehicle
movement which could result in seri-
ous vehicle damage or personal
injury.
CAUTION
∙ Do not drive the vehicle in the 4H or4LO position on dry hard surface
roads. Driving on dry, hard surfaces in
4H or 4LO may cause unnecessary
noise, tire wear and increased fuel
consumption.
If the 4WD warning light or vehicle in-
formation display warning message
turns on when you are driving on dry
hard surface roads:
– in the 4H position, shif t the 4WD shif t switch to 2WD.
– in the 4LO position, stop the ve- hicle, move the shif t lever to the N
(Neutral) position with the brake
pedal depressed, and shif t the
4WD shif t switch to 2WD.
∙ If the warning light or vehicle infor- mation display warning message is
still on af ter the above operation,
have your vehicle checked as soon as
possible. It is recommended that you
visit a NISSAN dealer for this service.
INCREASING FUEL ECONOMY USING 4–WHEEL DRIVE (4WD) (if so
equipped)
Starting and driving5-45

*1: Before moving the shif t lever from N (Neutral), wait until the 4LO indicator light stays on steady. This indicates that the 4WD shif tprocedure is completed and the transfer gear is correctly set in the 4LO position. If the vehicle is shif ted into gear before the indicator
is on steady, the transfer gear may grind, not engage correctly or stay in the N (Neutral) position.
- If the 4WD warning light or vehicle information display warning message illuminates, perform the following procedure to return the
transfer case to the correct operating condition.
1. Turn off the engine by placing the ignition switch in the OFF position.
2. Start the engine.
- Check that the 4WD warning light or vehicle information display warning message turns off. If the 4WD light illuminates, have the
system checked. It is recommended that you visit a NISSAN dealer for this service.
3. Apply the parking brake, depress the brake pedal and move the shif t lever to the N (Neutral) position.
4. With the brake pedal depressed, move the 4WD shif t switch to the desired mode.
- Be sure to wait until the transfer gear change completes before shif ting the shif t lever from the N (Neutral) position.
*2: While changing in and out of 4LO, the ignition switch must be in the ON position and the vehicle’s engine must be running for a shif t to take place and for the indicator lights (4WD shif t and 4LO position indicator) to be operable. Otherwise, the shif t will not take place and
no indicator lights will be on or flashing.
*3: Make sure the transfer 4LO position indicator light turns on when you shif t the 4WD shif t switch to 4LO. The
indicator light will also
turn on when 4LO is selected. For additional information, refer to “Vehicle Dynamic Control (VDC) system” in this section.
Starting and driving5-47

4WD shif t indicator light
The 4WD shif t indicator light is located in
the vehicle information display.
While the engine is running, the 4WD shif t
indicator light will illuminate the position
selected by the 4WD shif t switch.∙ The 4WD shif t indicator light may
come on while shif ting from one drive
mode to the other. When the shif ting
is completed, the 4WD shif t indicator
light will stay on. ∙ If the 4WD warning light or the vehicle
information display warning message
comes on, the 4WD indicator light goes
out.
CAUTION
∙ If the 4WD shif t indicator light indica-tion changes to 2WD when the 4WD
shif t switch is shif ted to the 4H posi-
tion at low ambient temperatures, the
2WD mode may be being engaged
due to malfunctioning drive system. If
the indicator does not return to nor-
mal and the 4WD warning light or the
vehicle information display warning
message comes on, have the system
checked. It is recommended that you
visit a NISSAN dealer for this service.
LSD2328
5-50Starting and driving

Warning light or warning message
Warning light (if soequipped) Warning message
Warning light or warning
message comes on when:
Trip computer (if so
equipped) Vehicle information dis-
play (if so equipped)
Illuminates 4WD ERROR4WD Error: See Owner’s
Manual There is a malfunction in
the 4–wheel drive sys-
tem
— 4WD TIRES FRT & RR tire size differ-
ence: See Owner’s Manual The difference in wheel
rotation is large
The 4WD warning light comes on when the
ignition switch is placed in the ON position.
It turns off soon af ter the engine is started.
If any malfunction occurs in the 4WD sys-
tem when the igntion switch is in the ON
position, the warning light will either re-
main illuminated or blink.
If the 4WD warning light comes on, the 4WD
shif t indicator light goes out.
If the “4WD TIRES” warning message comes
on, change the 4WD shif t switch into 2WD
and do not drive fast.
CAUTION
∙ If the warning light or warning mes-
sage comes on during operation or
rapidly af ter stopping the vehicle for a
while, have your vehicle checked as
soon as possible. It is recommended
that you visit a NISSAN dealer for this
service.
∙ Shif ting between 4H and 4LO is not recommended when the 4WD warn-
ing light or warning message turns
on.
Starting and driving5-51

WARNING
Do not pump the brake pedal. Doing so
may result in increased stopping
distances.
Self-test feature
The Anti-lock Braking System (ABS) in-
cludes electronic sensors, electric pumps,
hydraulic solenoids and a computer. The
computer has a built-in diagnostic feature
that tests the system each time you start
the engine and move the vehicle at a low
speed in forward or reverse. When the self-
test occurs, you may hear a “clunk” noise
and/or feel a pulsation in the brake pedal.
This is normal and does not indicate a mal-
function. If the computer senses a mal-
function, it switches the ABS off and illumi-
nates the ABS warning light on the
instrument panel. The brake system then
operates normally, but without anti-lock
assistance.
If the ABS warning light illuminates during
the self-test or while driving, have the ve-
hicle checked. It is recommended that you
visit a NISSAN dealer for this service.
Normal operation
The Anti-lock Braking System (ABS) oper-
ates at speeds above3-6mph(5-
10 km/h). The speed varies according to
road conditions.
When the ABS senses that one or more
wheels are close to locking up, the actuator
rapidly applies and releases hydraulic pres-
sure. This action is similar to pumping the
brakes very quickly. You may feel a pulsa-
tion in the brake pedal and hear a noise
from under the hood or feel a vibration
from the actuator when it is operating. This
is normal and indicates that the ABS is op-
erating properly. However, the pulsation
may indicate that road conditions are haz-
ardous and extra care is required while
driving.
BRAKE ASSIST
When the force applied to the brake pedal
exceeds a certain level, the brake assist is
activated generating greater braking force
than a conventional brake booster even
with light pedal force.
WARNING
The brake assist is only an aid to assist
braking operation and is not a collision
warning or avoidance device. It is the
driver’s responsibility to stay alert, drive
safely and be in control of the vehicle at
all times.
5-58Starting and driving

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 ..........................8-8
Changing engine oil filter .....................8-9
Fuel filter (CUMMINS 5.0L) ........................8-11
Fuel filter replacement (stage 1) ...............8-11
Fuel filter replacement (stage 2) ..............8-11
Draining water ............................... 8-11
Fuel system priming .......................... 8-11
Diesel Particulate Filter (DPF) .....................8-11
Automatic regeneration ......................8-11
6-speed Automatic Transmission Fluid (ATF)
(diesel engine only) ............................. 8-12
7-speed Automatic Transmission Fluid (ATF)
(gasoline engine only) .......................... 8-12
Power steering fluid ............................ 8-12
Brake fluid ...................................... 8-13
Windshield-washer fluid ........................8-14
Windshield-washer fluid reservoir ............8-14Battery.........................................
8-15
Jump starting ............................... 8-16
Variable voltage control (if so equipped) ........8-17
Drive belt ....................................... 8-17
Spark plugs (gasoline engine only) ..............8-18
Replacing spark plugs .......................8-18
Air cleaner ...................................... 8-19
In-cabin microfilter .......................... 8-19
Windshield wiper blades ........................8-20
Cleaning .................................... 8-20
Replacing ................................... 8-20
Brakes.......................................... 8-21
Fuses ........................................... 8-22
Engine compartment .......................8-22
Passenger compartment ....................8-24
Batter y

replacement ........................... 8-26
NISSAN Intelligent Key® ......................8-26
Lights .......................................... 8-28
Headlights ................................... 8-28
Fog lights (if so equipped) ...................8-28
Daytime Running Light (DRL)
(if so equipped) .............................. 8-29
Exterior and interior lights ...................8-31