2021 NISSAN ARMADA cooling

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 (approxi-
mately 1,500 rpm) until the tempera-
ture gauge indication returns to
normal.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from
the radiator before opening the hood.
(If steam or coolant is escaping, turn
off the engine.) 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 get-
ting burned.
6. Visually check drive belts for damage or looseness. Also check if the cooling
fan is running. The radiator hoses and
radiator should not leak water. If cool-
ant is leaking or the cooling fan does
not run, stop the engine.
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 cooling fan can start at any
time.
7. After the engine cools down, check the coolant level in the reservoir tank
with the engine running. Add coolant
to the reservoir tank if necessary. Have
your vehicle repaired. It is recom-
mended you visit a NISSAN dealer for
this service.
In case of emergency6-15

VEHICLE RECOVERY (freeing 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 in-
jury. Parts of your vehicle could
also overheat and be damaged.
Pulling a stuck vehicle
If your vehicle is stuck in sand, snow, mud,
etc., use a tow strap or other device
designed specifically for vehicle recovery.
Always follow the manufacturer’s instruc-
tions for the recovery device.
Attach the tow strap to the towing hook.
CAUTION
.Tow chains or cables must be
attached only to the main struc-
tural members of the vehicle or
the towing hooks. Otherwise, the
vehicle body will be damaged.
. Use the towing hook only to free
a vehicle stuck in sand, snow, mud, etc. Never tow the vehicle
for a long distance using only the
towing hook.
. The towing hook is under tre-
mendous force when used to free
a stuck vehicle. Never pull the
hook at an angle.
. Always pull the cable straight out
from the front or rear of the
vehicle.
. Pulling devices should be routed
so they do not touch any part of
the suspension, steering, brake or
cooling systems.
. Pulling devices such as ropes or
canvas straps are not recom-
mended for use in vehicle towing
or recovery.
Rocking a stuck vehicle
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 obstruc-
tions.
3. Turn the steering wheel right and left to clear an area around the front tires. 4. Slowly rock the vehicle forward and
backward.
.Shift back and forth between R(Reverse) and D (Drive).
.Apply the accelerator as little as possible to maintain the rocking
motion.
.Release the accelerator pedal be-
fore shifting between R and D.
.Do not spin the tires above 35 MPH(55 km/h).
5. If the vehicle cannot be freed after a few tries, contact a professional tow-
ing service to remove the vehicle.
In case of emergency6-19

8 Do-it-yourself
Maintenance precautions ...................................................... 8-2
Engine compartment check locations ........................ 8-3VK56VD engine ....................................................................... 8-3
Engine cooling system ............................................................. 8-4 Checking engine coolant level .................................... 8-5
Changing engine coolant ................................................ 8-5
Engine oil ........................................................................\
..................... 8-6 Checking engine oil level ................................................. 8-6
Changing engine oil and filter ..................................... 8-6
Automatic Transmission Fluid (ATF) ............................. 8-8
Power steering fluid ................................................................... 8-8
Brake fluid ........................................................................\
.................. 8-9
Window washer fluid .............................................................. 8-10
Battery ........................................................................\
........................ 8-11 Jump starting ........................................................................\
. 8-13
Variable voltage control system ................................... 8-13
Drive belts ........................................................................\
................ 8-13
Spark plugs ........................................................................\
............. 8-14 Replacing spark plugs ..................................................... 8-14
Air cleaner ........................................................................\
............... 8-15 Windshield wiper blades ..................................................... 8-16
Cleaning ........................................................................\
........... 8-16
Replacing ........................................................................\
........ 8-16
Rear window wiper blades ............................................... 8-17
Brakes ........................................................................\
........................ 8-17 Self-adjusting brakes ..................................................... 8-17
Brake pad wear warning ............................................ 8-17
Brake booster ...................................................................... 8-17
Fuses ........................................................................\
........................... 8-18 Engine compartment .................................................... 8-18
Passenger compartment ........................................... 8-20
Intelligent Key battery replacement .......................... 8-21
Lights ........................................................................\
.......................... 8-24
Headlights ........................................................................\
...... 8-26
Exterior and interior lights ........................................ 8-26
Wheels and tires ........................................................................\
8-28
Tire pressure ........................................................................\
8-28
Tire labeling ........................................................................\
.. 8-32
Types of tires ....................................................................... 8-34
Tire chains ........................................................................\
...... 8-35
Changing wheels and tires ...................................... 8-36

8-2Do-it-yourself
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 following are general precau-
tions which should be closely observed.
WARNING
.Park the vehicle on a level sur-
face, apply the parking brake
securely and block the wheels to
prevent the vehicle from moving.
Move the shift lever to P (Park).
. Be sure the ignition switch is in
the OFF or LOCK position when
performing any parts replace-
ment or repairs.
. Never connect or disconnect the
battery or any transistorized
component while the ignition
switch is in the ON position.
. Never leave the engine or auto-
matic transmission related com-
ponent harnesses disconnected
while the ignition switch is in the
ON position.
. If you must work with the engine
running, keep your hands, cloth-
ing, hair and tools away from
moving fans, belts and any other moving parts.
. It is advisable to secure or re-
move any loose clothing and
remove any jewelry, such as
rings, watches, etc. before work-
ing on your vehicle.
. Always wear eye protection
whenever you work on your ve-
hicle.
. If you must run the engine in an
enclosed 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 necessary to work under the
vehicle, support it with safety
stands.
. Keep smoking materials, flame
and sparks away from fuel tank
and the battery.
. Your vehicle is equipped with an
automatic engine cooling fan. It
may come on at any time without
warning, even if the ignition key is
in the OFF position and the en-
gine is not running. To avoid
injury, always disconnect the ne-
gative battery cable before work-
ing near the fan. .
Because the fuel lines are under
high pressure even when the
engine is off, it is recommended
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 direct contact with used
engine oil and coolant. Impro-
perly disposed engine oil, coolant,
and/or other vehicle fluids can
damage the environment. Always
conform to local regulations for
disposal of vehicle fluid.
This “8. Do-it-yourself” section gives in-
structions regarding only those items
which are relatively easy for an owner to
perform.
A genuine NISSAN Service Manual is also
available. (See “Owner’s Manual/Service
Manual order information” (P.10-40).)
You should be aware that incomplete or
improper servicing may result in operat-
ing difficulties or excessive emissions, and
MAINTENANCE PRECAUTIONS

8-4Do-it-yourself
The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/
Coolant (blue) and 50% water to provide
year-round anti-freeze and coolant pro-
tection. The antifreeze solution contains
rust and corrosion inhibitors. Additional
engine cooling system additives are not
necessary.
WARNING
.Never remove the radiator or
coolant reservoir cap when the
engine is hot. Wait until the en-
gine and radiator cool down.
Serious burns could be caused
by high pressure fluid escaping
from the radiator. See precau-
tions in “If your vehicle overheats”
(P.6-14).
. The radiator is equipped with a
pressure type radiator cap. To
prevent engine damage, use only
a genuine NISSAN radiator cap.
CAUTION
.Never use any cooling system
additives such as radiator sealer.
Additives may clog the cooling
system and cause damage to
the engine, transmission and/or
cooling system.
. When adding or replacing cool-
ant, be sure to use only Genuine
NISSAN Long Life Antifreeze/
Coolant (blue) or equivalent. Gen-
uine NISSAN Long Life Antifreeze/
Coolant (blue) is pre-diluted to
provide antifreeze protection to
−34°F (−37°C). If additional freeze
protection is needed due to
weather where you operate your
vehicle, add Genuine NISSAN Long
Life Antifreeze/Coolant (blue)
concentrate following the direc-
tions on the container. If an
equivalent coolant other than
Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) is used, fol-
low the coolant manufacturer’s
instructions to maintain mini-
mum antifreeze protection to
−34°F (−37°C). The use of other
types of coolant solutions other
than Genuine NISSAN Long Life Antifreeze/Coolant (blue) or
equivalent may damage the en-
gine cooling system.
. The life expectancy of the fac-
tory-fill coolant is 105,000 miles
(168,000 km) or 7 years. Mixing
any other type of coolant other
than Genuine NISSAN Long Life
Antifreeze/Coolant (blue) (or
equivalent coolant), including
Genuine NISSAN Long Life Anti-
freeze/Coolant (green), or the use
of non-distilled water will reduce
the life expectancy of the factory-
fill coolant. Refer to the “9. Main-
tenance and schedules” section
of this manual for more details.
ENGINE COOLING SYSTEM

JVM0733X
CHECKING ENGINE COOLANT LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below MIN
, open the reservoir
tank cap and add coolant up to the MAX
level. If the reservoir tank is empty,
check the coolant level in the radiator
when the engine is cold. If there is
insufficient coolant in the radiator, fill the
radiator with coolant up to the filler
opening and also add it to the reservoir
tank up to the MAX level
.
Tighten the cap securely after adding
engine coolant.
If the cooling system requires coolant
frequently, have it checked. It is recom- mended you visit a NISSAN dealer for
this service.
CHANGING ENGINE COOLANT
It is recommended that major cooling
system repairs be performed by a NISSAN
dealer. The service procedures can be
found in the appropriate NISSAN Service
Manual.
Improper servicing can result in re-
duced heater performance and engine
overheating.
WARNING
.
To avoid the danger of being
scalded, never change the cool-
ant when the engine is hot.
. Never remove the radiator cap or
coolant reservoir cap when the
engine is hot. Serious burns could
be caused by high pressure fluid
escaping 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 pos-
sible.
. Keep coolant out of reach of
children and pets. Engine coolant must be disposed of
properly. Check your local regulations.
Do-it-yourself8-5

tion, see “Cleaning exterior” (P.7-2).
Windshield washer fluid*:Check that
there is adequate fluid in the reservoir.The following descriptions are provided
to give you a better understanding of the
scheduled maintenance items that
should be regularly checked or replaced.
The maintenance schedule indicates at
which mileage/time intervals each item
requires service.
In addition to scheduled maintenance,
your vehicle requires that some items be
checked during normal day-to-day op-
eration. Refer to “General maintenance”
(P.9-2).
Items marked with “*” are recommended
by NISSAN for reliable vehicle operation.
You are not required to perform main-
tenance on these items in order to
maintain the warranties which come with
your vehicle. Other maintenance items
and intervals are required.
When applicable, additional information
can be found in the “8. Do-it yourself”
section of this manual.
NOTE:
NISSAN does not advocate the use of
non-OEM approved aftermarket flush-
ing systems and strongly advises
against performing these services on a
NISSAN product. Many of the aftermar-
ket flushing systems use non-OEM ap-
proved chemicals or solvents, the use of
which has not been validated by
NISSAN. For recommended fuel, lubricants,
fluids, grease, and refrigerant, refer to
“Capacities and recommended fluids/
lubricants” (P.10-2) of this manual.
EMISSION CONTROL SYSTEM MAIN-
TENANCE
Drive belts*:
Check engine drive belts for wear, fraying
or cracking and for proper tension. Re-
place any damaged drive belts.
Engine air filter:
Replace at specified intervals. When driv-
ing for prolonged periods in dusty condi-
tions, check/replace the filter more
frequently.
Engine coolant*:
Replace coolant at the specified interval.
When adding or replacing coolant, be
sure to use only Genuine NISSAN Long
Life Antifreeze/Coolant (blue) or equiva-
lent with the proper mixture. (Refer to
“Engine cooling system” (P.8-4) to deter-
mine the proper mixture for your area.)
NOTE:
Mixing any other type of coolant or the
use of non-distilled water may reduce
the recommended service interval of
the coolant.
Maintenance and schedules9-5
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS

11-2
Circuit breaker, Fusible link ................................. 8-19
Cleaning exterior and interior ................... 7-2, 7-5
Climate control.............................................................. 4-35
Clock ........................................................................\
.............. 2-38
Coat hooks ....................................................................... 2-70
Cockpit ........................................................................\
............. 2-3
Cold weather driving ............................................. 5-146
Console box ..................................................................... 2-69
Console light ................................................................... 2-79
CoolantCapacities and
recommended fluids/lubricants............... 10-2
Changing engine coolant ................................. 8-5
Checking engine coolant level...................... 8-5
Corrosion protection .................................................... 7-7
Cruise control Fixed speed cruise control (on
ICC system)................................................................ 5-92
Intelligent Cruise Control (ICC) ................. 5-74
Cruise indicator............................................................. 2-32
Cup holders...................................................................... 2-66
Current fuel consumption.................................... 2-36
D
Daytime running light system........................... 2-50
Dimensions .................................................................... 10-10
Drive belts...................................................................\
....... 8-13
Drive positioner............................................................. 3-40
Driver and front passenger supplemental
knee air bag..................................................................... 1-68
Driving Cold weather driving ..................................... 5-146
Driving with
automatic transmission .................................. 5-18
On-pavement and off-road driving .......... 5-9 Precautions when starting
and driving.................................................................... 5-4
Safety precautions .............................................. 5-10
E
Economy, Fuel............................................................. 5-124
Elapsed time.................................................................... 2-36
Elapsed time and trip odometer..................... 2-36
Emergency Call (SOS) button ............................ 2-64
Emission control information label............ 10-12
Emission control system warranty ............ 10-37
Engine
Before starting the engine............................ 5-16
Break-in schedule ............................................ 5-123
Capacities and
recommended fluids/lubricants............... 10-2
Changing engine coolant ................................. 8-5
Changing engine oil and filter ...................... 8-6
Checking engine coolant level...................... 8-5
Checking engine oil level................................... 8-6
Coolant temperature gauge .......................... 2-7
Emergency engine shut off.......................... 5-15
Engine block heater ....................................... 5-148
Engine compartment
check locations ......................................................... 8-3
Engine cooling system ........................................ 8-4
Engine oil.....................................................................\
... 8-6
Engine oil and oil
filter recommendation ..................................... 10-6
Engine oil viscosity .............................................. 10-7
Engine serial number .................................... 10-12
Engine specifications......................................... 10-8
Engine start operation indicator.............. 2-29
If your vehicle overheats ................................ 6-14
Oil pressure gauge ................................................. 2-8
Protection mode ................................................... 5-17 Starting the engine............................................. 5-16
Entry/exit function, memory seat .................. 3-40
Event Data Recorders (EDR)............................. 10-39
Exhaust gas (carbon monoxide) ......................... 5-4
Explanation of scheduled
maintenance items ........................................................ 9-5
Extended storage switch ...................................... 8-21
F
F.M.V.S.S./C.M.V.S.S. certification label ...... 10-12
Filter Air cleaner housing filter ................................ 8-15
Changing engine oil and filter ...................... 8-6
Flashers (See hazard warning
flasher switch).................................................................... 6-2
Flat tire........................................................................\
............. 6-3
Flat towing..................................................................... 10-35
Flexible seating.............................................................. 1-12
Floor mat cleaning ......................................................... 7-5
Fluid Automatic Transmission Fluid (ATF) ........ 8-8
Brake fluid ..................................................................... 8-9
Capacities and
recommended fluids/lubricants............... 10-2
Engine coolant........................................................... 8-4
Engine oil.....................................................................\
... 8-6
Power steering fluid .............................................. 8-8
Window washer fluid ......................................... 8-10
Fog light switch ............................................................ 2-52
Four-Wheel Drive (4WD) NISSAN all-mode 4WD®................................ 5-124
Front and rear sonar system.......................... 5-135
Front passenger air bag and
status light........................................................................\
1-62
Front power seat adjustment ............................... 1-4