2018 NISSAN FRONTIER service

WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or
the engine cooling fan. The engine cool-
ing fan can start at any time.6. Af ter the engine cools down, check the coolant level in the engine coolant res-
ervoir tank with the engine running.
Add coolant to the engine coolant res-
ervoir tank if necessary. Have your ve-
hicle repaired. It is recommended that
you visit a NISSAN dealer for this ser-
vice. 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.
CAUTION
∙ When towing, make sure that thetransmission, axles, steering system
and powertrain are in working condi-
tion. If any of these conditions apply,
dollies or a flatbed tow truck must be
used.
∙ Always attach safety chains before towing. For additional information, refer to “Flat
towing — 4WD with automatic transmis-
sion,” “Flat towing — 2WD with automatic
transmission” and “Flat towing — 2WD/4WD
with manual transmission” in the “Technical
and consumer information” section of this
manual.
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 emergency6-15

Pulling a stuck vehicle
WARNING
To avoid vehicle damage, serious per-
sonal injury or death when recovering a
stuck vehicle:
∙ Contact a professional towing serviceto recover the vehicle if you have any
questions regarding the recovery
procedure.
∙ Attach recovery devices only to main structural members of the vehicle or
the recovery hooks.
∙ Do not use the vehicle tie-downs to tow or free a stuck vehicle.
∙ Only use devices specifically designed for vehicle recovery and follow the
manufacturer’s instructions.
∙ Always pull the recovery device straight out from the front of the ve-
hicle. Never pull at an angle.
∙ Route recovery devices so they do not touch any part of the vehicle except
the attachment point. If your vehicle is stuck in sand, snow, mud,
etc., use a tow strap or other device de-
signed specifically for vehicle recovery. Al-
ways follow the manufacturer’s instruc-
tions for the recovery device.
Rocking a stuck vehicle
WARNING
∙ Stand clear of a stuck vehicle.
∙ Do not spin your tires at high speed.
This could cause them to explode and
result in serious injury. Parts of your
vehicle could also overheat and be
damaged.
If your vehicle is stuck in sand, snow, mud,
etc., use the following procedure: 1. Turn off the Vehicle Dynamic Control (VDC) system.
2. Make sure the area in front and behind the vehicle is clear of obstructions.
3. Turn the steering wheel right and lef t to clear an area around the front tires. 4. Slowly rock the vehicle forward and
backward.
∙ Shif t back and forth between R (Re- verse) and D (Drive) (automatic trans-
mission models) or 1st (Low) and R
(Reverse) (manual transmission
models).
∙ Apply the accelerator as little as pos- sible to maintain the rocking motion.
∙ Release the accelerator pedal before shif ting between R and D (automatic
transmission models) or 1st and R
(manual transmission models).
∙ Do not spin the tires above 34 mph (55 km/h).
5. If the vehicle cannot be freed af ter a few tries, contact a professional towing
service to remove the vehicle.
6-20In case of emergency

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. For manual trans-
mission models, move the shif t lever
to N (Neutral). For Automatic Trans-
mission (A/T) move the shif t lever to P
(Park)
∙ Be sure the ignition key is in the OFF or LOCK position when performing 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.
∙ 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.
∙ On gasoline engine models, the fuel filter or fuel lines should be serviced
because the fuel lines are under high
pressure even when the engine is off.
It is recommended that you visit a
NISSAN dealer for this service.
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 the trans- mission related component harness
connector disconnected while the ig-
nition 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

CHECKING ENGINE COOLANT
LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below the MIN level
B, add coolant
to the MAX level
A. If the reservoir is empty,
check the coolant level in the radiator
when the engine is cold. If there is insuffi-
cient coolant in the radiator, fill the radiator
with coolant up to the filler opening and
also add it to the reservoir up to the MAX
level
A. This vehicle contains Genuine NISSAN Long
Life Antifreeze/Coolant (blue). The life ex-
pectancy of the factory-fill coolant is
105,000 miles (168,000 km) or 7 years. Mixing
any other type of coolant or the use of
non-distilled water will reduce the life ex-
pectancy of the factory-fill coolant. For ad-
ditional information, refer to the "Mainte-
nance and schedules" section of this
manual.
If the cooling system frequently requires
coolant, it is recommended that you visit
a NISSAN dealer for this service.
For additional information on the location
of the engine coolant reservoir, refer to “En-
gine compartment check locations” in this
section.
CHANGING ENGINE COOLANT
A NISSAN dealer can change the engine
coolant. The service procedure can be
found in the NISSAN Service Manual.
Improper servicing can result in reduced
heater performance and engine over-
heating.
WARNING
∙ To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
∙ Never remove the radiator or engine coolant reservoir cap when the en-
gine is hot. Serious burns could be
caused by high pressure fluid escap-
ing from the radiator.
∙ Avoid direct skin contact with used coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
∙ Keep coolant out of the reach of chil- dren and pets.
Engine coolant must be disposed of prop-
erly. Check your local regulations.
LDI2831
8-6Do-it-yourself

When checking or replacement is required,
it is recommend that you visit a NISSAN
dealer for this service.
CAUTION
∙ Use Genuine NISSAN Matic S ATF. IfGenuine NISSAN Matic S ATF is not
available, Genuine NISSAN Matic J ATF
may also be used.
∙ Using automatic transmission fluid other than Genuine NISSAN Matic S
ATF or Matic J ATF will cause deterio-
ration in driveability and automatic
transmission durability, and may
damage the automatic transmission,
which is not covered by the NISSAN
New Vehicle Limited Warranty.
The specified automatic transmission fluid
is also described on caution labels located
in the engine compartment. The fluid level should be checked using the
HOT MAX range on the power steering fluid
reservoir at fluid temperatures of 122° -
176°F (50° - 80°C) or using the COLD MAX
range on the power steering fluid reservoir
at fluid temperatures of 32° - 86°F (0° - 30°C).
If the fluid is at or below the MIN line, add
Genuine NISSAN PSF-II or equivalent to HOT
MAX or COLD MAX depending on system
fluid temperature. Remove the cap and fill
through the opening.
CAUTION
∙ DO NOT OVERFILL.
∙ Recommended fluid is Genuine
NISSAN PSF-II or equivalent
WDI0256
5-SPEED AUTOMATIC
TRANSMISSION (if so equipped)
FLUID (ATF) POWER STEERING FLUID (PSF)
Do-it-yourself8-11

For additional information on brake fluid
specification, refer to “Recommended
fluids/lubricants and capacities” in the
“Technical and consumer information” sec-
tion of this manual.
WARNING
∙ Use only new fluid from a sealed con-tainer. Old, inferior or contaminated
fluid may damage the brake and
clutch (if so equipped) systems. The
use of improper fluids can damage
the brake and clutch system and af-
fect the vehicle’s stopping ability.
∙ Clean the filler cap before removing.
∙ Brake and clutch fluid is poisonous and should be stored carefully in
marked containers out of reach of
children.
CAUTION
Do not spill the fluid on any painted sur-
faces. This will damage the paint. If fluid
is spilled, immediately wash the surface
with water.
BRAKE FLUID
Check the brake fluid level in the reservoir. If
the fluid level is below the MIN line
Bor the
brake warning light comes on, add Genu-
ine NISSAN Super Heavy Duty Brake Fluid or
equivalent DOT 3fluid up to the MAX line
A.
If fluid must be added frequently, the sys-
tem should be checked. It is recom-
mended that you visit a NISSAN dealer for
this service.
CLUTCH (if so equipped) FLUID
Check the fluid level in the reservoir. The
brake fluid reservoir is shared with the
clutch hydraulic system for manual trans-
missions. If the level is below the MIN line
B,
or the brake warning light comes on, add
Genuine NISSAN Super Heavy Duty Brake
Fluid or equivalent DOT 3fluid up to the
MAX line
A. If fluid must be added fre-
quently, the system should be checked. It is
recommended that you visit a NISSAN
dealer for this service.
LDI2835LDI2835
BRAKE AND CLUTCH (if so equipped)
FLUID
8-12Do-it-yourself

1. Visually inspect the belt for signs of un-usual wear, cuts, fraying or looseness. If
the belt is in poor condition or is loose,
have it replaced or adjusted. It is recom-
mended that you visit a NISSAN dealer
for this service.
2. Have the belt checked regularly for condition and tension in accordance
with the maintenance schedule found
in the "Maintenance and schedules"
section of this manual.
1. Power steering fluid pump pulley
2. Water pump pulley
3. Air conditioner compressor pulley
4. Crankshaf t pulley
5. Generator pulleyREPLACING SPARK PLUGS
Platinum-tipped spark plugs
(QR25DE models)
It is not necessary to replace platinum-
tipped
Aspark plugs as frequently as con-
ventional type spark plugs because they
last much longer. Follow the maintenance
log shown in the "Maintenance and sched-
ules" section of this manual. Do not service
platinum-tipped spark plugs by cleaning or
regapping.
∙ Always replace spark plugs with rec-
ommended or equivalent ones.
QR25DE
LDI0461SDI1895
SPARK PLUGS
Do-it-yourself8-17

If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service.
Iridium-tipped spark plugs
(VQ40DE models)
It is not necessary to replace iridium-
tipped
Aspark plugs as frequently as con-
ventional type spark plugs because they
last much longer. Follow the maintenance
log shown in the "Maintenance and sched-
ules" section of this manual. Do not service
iridium-tipped spark plugs by cleaning or
regapping.
∙ Always replace spark plugs with rec-
ommended or equivalent ones.
If replacement is required, it is recom-
mended that you visit a NISSAN dealer for
this service. The air cleaner filter should not be cleaned
and reused. Replace it according to the
maintenance log shown in the "Mainte-
nance and schedules" section of this
manual. When replacing the filter, wipe the
inside of the air cleaner filter housing and
the cover with a damp cloth.
To remove the VQ40DE air cleaner filter:
1Unlatch the clips and remove the air
cleaner cover. Remove the air cleaner
filter.
To remove the QR25DE air cleaner filter: 1. Unlatch the clips
A,B,C. 2. Push down half of air cleaner to clear
the bottom retainers.
3. Lif t up on half of air cleaner to remove the air cleaner filter
VQ40DE
WDI0686
QR25DE
LDI0465
AIR CLEANER
8-18Do-it-yourself