2019 NISSAN ARMADA ECU

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Two-Wheel Drive (2WD) models
TOWING RECOMMENDED BY
NISSAN
Two-Wheel Drive (2WD) models
NISSAN recommends that your vehicle be
towed with the driving (rear) wheels off
the ground or place the vehicle on a flat
bed truck as illustrated.
CAUTION
.Never tow automatic transmis-
sion models with the rear wheels
on the ground or four wheels on
the ground (forward or back- ward), as this may cause serious
and expensive damage to the
transmission. If it is necessary to
tow the vehicle with the front
wheels raised, always use towing
dollies under the rear wheels.
. When towing rear wheel drive
models with the front wheels on
the ground or on towing dollies:
Place the ignition in the ACC or ON
position, and secure the steering
wheel in a straight-ahead posi-
tion with a rope or similar device.
In case of emergency6-17

6-22In case of emergency
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4WD shift motor harness connector
2. Unlock the upper lockof the har-
ness connector of the 4WD shift motor
assembly, then remove the harness
connector.
3. Cover the connector to prevent it from getting dirty, and then fasten
the connector to the vehicle using a
suitable rope so that the connector
does not contact the exhaust muffler,
etc.
CAUTION
The connector must be fastened
securely. Not doing so may result in
damage to the connector due to
interference with other parts.
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4. Remove the 4 boltsthat secure the
4WD shift motor using the wrench
that is equipped in the vehicle.
5. Remove the 4WD shift motor assem- bly.
CAUTION
Be careful not to allow the assembly
to contact water, dirt or sand.

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6. Completely insert the wrench into theinternal gearof the transfer.
7. Fully turn the wrench clockwise
as
far as it will go. This shifts the transfer
to the 4L position.
8. Install the 4WD shift motor assembly. Securely tighten the 4 bolts using the
wrench.
CAUTION
.Do not connect the harness con-
nector of the 4WD shift motor
after the above procedure has
been performed. .
The 4 bolts are tightened to
temporarily install the 4WD shift
motor so that water, dirt or sand
does not enter inside the system.
Therefore, they should only be
tightened to the proper tighten-
ing torque. It is recommended
you contact a NISSAN dealer for
inspection and repair.
9. With the 4WD system in the 4L posi- tion, free the stuck vehicle. (See “Ve-
hicle recovery (freeing a stuck vehicle)”
(P.6-19) for details.)
CAUTION
After manually shifting the vehicle to
the 4L position, it is recommended
you contact a NISSAN dealer for
inspection and repair as soon as
possible.
In case of emergency6-23

7-6Appearance and care
.Use only genuine NISSAN floor
mats or equivalent floor mats
that are specifically designed for
use in your vehicle model and
model year.
. Properly position the mats in the
floorwell using the floor mat po-
sitioning hooks. See “Floor mat
installation” (P.7-6).
. Make sure the floor mat does not
interfere with pedal operation.
. Periodically check the floor mats
to make sure they are properly
installed.
. After cleaning the vehicle interior,
check the floor mats to make
sure they are properly installed.
The use of genuine NISSAN floor mats can
extend the life of your vehicle carpet and
make it easier to clean the interior. Mats
should be maintained with regular clean-
ing and replaced if they become exces-
sively worn.
JVA0034X
Front (example)
Floor mat installation
Your vehicle is equipped with floor mat
positioning hook(s). The number and
shape of the floor mat positioning hooks
for each seating position varies depend-
ing on the vehicle.
When installing genuine NISSAN floor
mats, follow the installation instructions
provided with the floor mat and the
following:
1. Position the floor mat in the floorwell so that the mat grommet holes are
aligned with the hook(s).
2. Secure the grommet holes into the hook(s) and ensure that the floor mat is properly positioned.
3. Make sure the floor mat does not interfere with pedal operation. With
the ignition in the OFF position and
the shift lever in the P (Park) position,
fully apply and release all pedals. The
floor mat must not interfere with
pedal operation or prevent the pedal
from returning to its normal position.
It is recommended you see a NISSAN
dealer for details about installing the
floor mats in your vehicle.

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.10-34).)
You should be aware that incomplete or
improper servicing may result in operat-
ing difficulties or excessive emissions, and
MAINTENANCE PRECAUTIONS

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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

SDI2528
Engine oil and filter
1. Place a large drain pan under thedrain plug.
2. Remove the oil filler cap.
3. Remove the drain plug
with a
wrench and completely drain the oil.
CAUTION
Be careful not to burn yourself, as
the engine oil is hot.
.Waste oil must be disposed of properly.
.Check your local regulations.
4. (Perform steps 4 to 7 only when the engine oil filter change is needed.)
Loosen the oil filter
with an oil filter
wrench. Remove the oil filter by turn-
ing it by hand.
5. Wipe the engine oil filter mounting surface with a clean rag.
CAUTION
Be sure to remove any old rubber
gasket remaining on the mounting
surface of the engine. Failure to do
so could lead to engine damage.
6. Coat the gasket on the new filter with clean engine oil.
7. Screw in the oil filter clockwise until a slight resistance is felt, then tighten
additionally more than 2/3 turn.
Oil filter tightening torque:11 to 15 ft-lb
(15 to 21 N·m)
8. Clean and re-install the drain plug with a new washer. Securely tighten
the drain plug with a wrench.
Drain plug tightening torque:22 to 29 ft-lb
(29 to 39 N·m) Do not use excessive force.
9. Refill engine with recommended oil and install the oil filler cap securely.
CAUTION
The dipstick must be inserted in
place to prevent oil spillage from
the dipstick hole while filling the
engine with oil.
See “Capacities and recommended
fluids/lubricants” (P.10-2) for drain
and refill capacity. The drain and refill
capacity depends on the oil tempera-
ture and drain time. Use these speci-
fications for reference only. Always
use the dipstick to determine the
proper amount of oil in the engine.
10. Start the engine and check for leak- age around the drain plug and the oil
filter. Correct as required.
11. Turn the engine off and wait more than 15 minutes. Check the oil level
with the dipstick. Add engine oil if
necessary.
Do-it-yourself8-7

Add a washer solvent to the washer for
better cleaning. In the winter season, add
a windshield washer antifreeze. Follow
the manufacturer’s instructions for the
mixture ratio.
Refill the reservoir more frequently when
driving conditions require an increased
amount of window washer fluid.
Recommended fluid is Genuine NISSAN
Windshield Washer Concentrate Cleaner
& Antifreeze or equivalent.
CAUTION
.Do not substitute engine anti-
freeze coolant for window
washer solution. This may result
in damage to the paint.
. Do not fill the window washer
reservoir tank with washer fluid
concentrates at full strength.
Some methyl alcohol based
washer fluid concentrates may
permanently stain the grille if
spilled while filling the window
washer reservoir tank.
. Pre-mix washer fluid concen-
trates with water to the manu-
facturer’s recommended levels
before pouring the fluid into the
window washer reservoir tank. Do not use the window washer re-
servoir tank to mix the washer
fluid concentrate and water.
.
Keep the battery surface clean and
dry. Clean the battery with a solution
of baking soda and water.
. Make certain the terminal connec-
tions are clean and securely tightened.
. If the vehicle is not to be used for 30
days or longer, disconnect the nega-
tive (−) battery terminal cable to pre-
vent discharging it.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start condi-
tions such as:
1. Installation or extended use of elec-
tronic accessories that consume
battery power when the engine is
not running (Phone chargers, GPS,
DVD players, etc.)
2. Vehicle is not driven regularly and/
or only driven short distances.
In these cases, the battery may need to
be charged to maintain battery health.
WARNING
. Do not expose the battery to
flames or electrical sparks. Hy-
drogen gas generated by the
battery is explosive. Do not allow
battery fluid to contact your skin,
Do-it-yourself8-11
BATTERY