2021 NISSAN ARMADA check engine

9-4Maintenance and schedules
belt system (for example, buckles, an-
chors, adjuster and retractors) operate
properly and smoothly, and are installed
securely. Check the belt webbing for cuts,
fraying, wear or damage.
Steering wheel:Check for changes in the
steering conditions, such as excessive
free play, hard steering or strange noises.
Warning lights and chimes: Make sure
that all warning lights and chimes are
operating properly.
Windshield defroster: Check that the air
comes out of the defroster outlets prop-
erly and in sufficient quantity when oper-
ating the heater or air conditioner.
Windshield wiper and washer*: Check
that the wipers and washer operate
properly and that the wipers do not
streak.
Under the hood and vehicle
The maintenance items listed here should
be checked periodically (for example,
each time you check the engine oil or
refuel).
Battery*: Check the fluid level in each cell.
It should be between the MAX and MIN
lines. Vehicles operated in high tempera-
tures or under severe condition require
frequent checks of the battery fluid level. 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.
Brake fluid level*: Make sure that the
brake fluid level is between the MAX and
MIN lines on the reservoir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Engine drive belts*: Make sure that no
belt is frayed, worn, cracked or oily.
Engine oil level*: Check the level after
parking the vehicle on a level spot and
turning off the engine. Wait more than 15
minutes for the oil to drain back into the
oil pan.
Exhaust system: Make sure there are no
loose supports, cracks or holes. If the
sound of the exhaust seems unusual or
there is a smell of exhaust fumes, im-
mediately have the exhaust system in- spected. It is recommended you visit a
NISSAN dealer for this service. (See “Pre-
cautions when starting and driving” (P.5-
4) for exhaust gas (carbon monoxide).)
Fluid leaks:
Check under the vehicle for
fuel, oil, water or other fluid leaks after the
vehicle has been parked for a while. Water
dripping from the air conditioner after use
is normal. If you should notice any leaks
or if gasoline fumes are evident, check for
the cause and have it corrected immedi-
ately.
Power steering fluid level* and lines:
Check the level when the fluid is cold, with
the engine off. Check the lines for proper
attachment, leaks, cracks, etc.
Radiator and hoses: Check the front of
the radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks,
deformation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control
dust. It is very important to remove these
substances, otherwise rust will form on
the floor pan, frame, fuel lines and around
the exhaust system. At the end of winter,
the underbody should be thoroughly
flushed with plain water, being careful to
clean those areas where mud and dirt
may accumulate. For additional informa-

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

9-6Maintenance and schedules
Engine oil and oil filter:
Replace engine oil and oil filter at the
specified intervals. For recommended oil
grade and viscosity refer to “Capacities
and recommended fluids/lubricants”
(P.10-2).
Engine valve clearance*:
Inspect only if valve noise increases.
Adjust valve clearance if necessary.
Evaporative Emissions Control Vapor
Lines*:
Check vapor lines for leaks or looseness.
Tighten connections or replace parts as
necessary.
Fuel filter:
Periodic maintenance is not required. (in-
tank type filter)
Fuel lines*:
Check the fuel hoses, piping and connec-
tions for leaks, looseness, or deterioration.
Tighten connections or replace parts as
necessary.
Spark plugs:
Replace at specified intervals. Install new
plugs of the type as originally equipped.CHASSIS AND BODY MAINTENANCE
Brake lines and cables:
Visually inspect for proper installation.
Check for chafing, cracks, deterioration,
and signs of leaking. Replace any deterio-
rated or damaged parts immediately.
Brake pads and rotors:
Check for wear, deterioration and fluid
leaks. Replace any deteriorated or da-
maged parts immediately.
Exhaust system:
Visually inspect the exhaust pipes, muffler
and hangers for leaks, cracks, deteriora-
tion, and damage. Tighten connections or
replace parts as necessary.
Propeller shaft(s):
Check for damage, looseness, and grease
leakage.
In-cabin microfilter:
Replace at specified intervals. When driv-
ing for prolonged periods in dusty condi-
tions, replace the filter more frequently.
Steering gear and linkage, axle and
suspension parts:
Check for damage, looseness, and leak-
age of oil or grease. Under severe driving
conditions, inspect more frequently.
Tire rotation:
Rotate tires at the specified interval. Whenrotating tires, check for damage and
uneven wear. Replace if necessary.
Transmission fluid/oil, differential oil:
Visually inspect for signs of leakage at
specified intervals.
Off-road maintenance:
Check the following items frequently
whenever you drive off-road through
deep sand, mud or water:
.
Brake pads and rotors
. Brake linings and drums
. Brake lines and hoses
. Differential, transmission and transfer
case oil
. Steering linkage
. Propeller shaft(s) and front drive
shafts
. Engine air filter
. Clutch housing drain (AWD only)

10-6Technical and consumer information
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended above
can cause persistent, heavy spark
knock. (Spark knock is a metallic rap-
ping noise.) If severe, this can lead to
engine damage. If you detect a persis-
tent heavy spark knock even when
using gasoline of the stated octane
rating, or if you hear steady spark knock
while holding a steady speed on level
roads, it is recommended you have a
NISSAN dealer correct the condition.
Failure to correct the condition is mis-
use of the vehicle, for which NISSAN is
not responsible.
Incorrect ignition timing will result in
knocking, after-run or overheating. This
in turn may cause excessive fuel con-
sumption or damage to the engine. If any
of the above symptoms are encountered,
have your vehicle checked. It is recom-
mended you visit a NISSAN dealer for
servicing.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is
no cause for concern, because you get
the greatest fuel benefit when there is
light spark knock for a short time under
heavy engine load.
JVT0342X
API certification markAPI service symbol
ENGINE OIL AND OIL FILTER RE-
COMMENDATION
Selecting the correct oil
It is essential to choose the correct grade,
quality, and viscosity engine oil to ensure
satisfactory engine life and performance,
see “Capacities and recommended fluids/
lubricants” (P.10-2). NISSAN recommends
the use of an energy conserving oil in
order to improve fuel economy.
Select only engine oils that meet the
American Petroleum Institute (API) certifi-
cation or International Lubricant Standar-dization and Approval Committee (ILSAC)
certification and SAE viscosity standard.
These oils have the API certification mark
on the front of the container. Oils which
do not have the specified quality label
should not be used as they could cause
engine damage.
Oil additives
NISSAN does not recommend the use of
oil additives. The use of an oil additive is
not necessary when the proper oil type is
used and maintenance intervals are fol-
lowed.
Oil which may contain foreign matter or
has been previously used should not be
used.

10-32Technical and consumer information
Pre-towing tips
.Be certain your vehicle maintains a
level position when a loaded or un-
loaded trailer is hitched. Do not drive
the vehicle if it has an abnormal nose-
up or nose-down condition; check for
improper tongue load, overload, worn
suspension or other possible causes
of either condition.
. Always secure items in the trailer to
prevent load shift while driving.
. Keep the cargo load as low as possible
in the trailer to keep the trailer center
of gravity low.
. Load the trailer so approximately 60%
of the trailer load is in the front half
and 40% is in the back half. Also make
sure the load is balanced side to side.
. Check your hitch, trailer tire pressure,
vehicle tire pressure, trailer light op-
eration, and trailer wheel lug nuts
every time you attach a trailer to the
vehicle.
. Be certain your rearview mirrors con-
form to all federal, state or local
regulations. If not, install any mirrors
required for towing before driving the
vehicle.
. Determine the overall height of the
vehicle and trailer so the required
clearance is known.
Trailer towing tips
In order to gain skill and an understand-
ing of the vehicle’s behavior, you should
practice turning, stopping and backing up
in an area which is free from traffic.
Steering stability, and braking perfor-
mance will be somewhat different than
under normal driving conditions.
.Always secure items in the trailer to
prevent load shift while driving.
. Lock the trailer hitch coupler with a
pin or lock to prevent the coupler from
inadvertently becoming unlatched.
. Avoid abrupt starts, acceleration or
stops.
. Avoid sharp turns or lane changes.
. Always drive your vehicle at a moder-
ate speed. Some states or provinces
have specific speed limits for vehicles
that are towing trailers. Obey the local
speed limits.
. When backing up, hold the bottom of
the steering wheel with one hand.
Move your hand in the direction in
which you want the trailer to go. Make
small corrections and back up slowly.
If possible, have someone guide you
when you are backing up.
Always block the wheels on both vehicle
and trailer when parking. Parking on a
slope is not recommended; however, if you must do so:
CAUTION
If you move the shift lever to the P
(Park) position before blocking the
wheels and applying the parking
brake, transmission damage could
occur.
1. Apply and hold the brake pedal.
2. Have someone place blocks on the downhill side of the vehicle and trailer
wheels.
3. After the wheel blocks are in place, slowly release the brake pedal until
the blocks absorb the vehicle load.
4. Apply the parking brake.
5. Shift the transmission into P (Park).
6. Four-Wheel Drive (4WD) models:
Make sure that the 4WD shift switch is
engaged in the AUTO, 4HI or 4LO
position and the Automatic Transmis-
sion (AT) park warning light is turned
off.
7. Turn off the engine.
To drive away:
1. Apply and hold the brake pedal.

10-34Technical and consumer information
— the Blind Spot Warning (BSW) sys-tem
(See “How to enable/disable the I-
BSI system” (P.5-48).)
— the Intelligent Blind Spot Interven- tion (I-BSI) system
(See “How to enable/disable the I-
BSI system” (P.5-48).)
— the Intelligent Back-up Intervention (I-BI) system
(See “I-BI system operation” (P.5-
65).)
— the Intelligent Cruise Control (ICC) system
(See “Intelligent Cruise Control
(ICC)” (P.5-74).)
— the Rear Automatic Braking (RAB) system
(See “RAB system operation” (P.5-
118).)
— the Rear Cross Traffic Alert (RCTA) system
(See “How to enable/disable the
RCTA system” (P.5-59).)
. Some states or provinces have speci-
fic regulations and speed limits for
vehicles that are towing trailers. Obey
the local speed limits.
. Check your hitch, trailer wiring har-
ness connections, and trailer wheel
lug nuts after 50 miles (80 km) of travel and at every break.
. When launching a boat, do not allow
the water level to go over the exhaust
tail pipe or rear bumper.
. Make sure you disconnect the trailer
lights (if so equipped) before backing
the trailer into the water or the trailer
lights may burn out.
When towing a trailer, the transmission
fluid should be changed more fre-
quently. For additional information,
see the "9. Maintenance and schedules"
section.
TOW mode
Using TOW mode is recommended when
pulling a heavy trailer or hauling a heavy
load. Push the TOW MODE switch to
activate tow mode. The TOW MODE
indicator light in the meter illuminates
when TOW mode is selected. Push the
TOW MODE switch again to turn TOW
mode off. TOW mode is automatically
cancelled when the ignition switch is
placed in the OFF position.
TOW mode includes the following fea-
tures:
. Grade logic — Adjusts transmission
shifts when pulling a trailer or hauling
a load up a grade. .
Downhill Speed Control (DSC) — auto-
matically downshifts when driving
down a grade with a trailer or heavy
load to help control vehicle speed.
Driving the vehicle in the TOW mode with
no trailer/load or light trailer/light load
will not cause any damage. However, fuel
economy may be reduced and the trans-
mission/engine driving characteristics
may feel unusual.
When towing a trailer, the transmission
fluid should be changed more fre-
quently. For additional information,
see the "9. Maintenance and schedules"
section.Trailer Sway Control
To minimize trailer sway, your vehicle may
apply braking to individual wheels based
on input from your vehicle sensors and
vehicle speed. Trailer Sway Control is a
function of the Vehicle Dynamic Control
(VDC) system and is active when the VDC
function is enabled.
CAUTION
If the VDC OFF switch is on (meaning
VDC system OFF), the Trailer Sway
Control is also disabled.

the vehicle may be reset to a “not ready
condition”. Before taking the I/M test,
check the vehicle’s inspection/mainte-
nance test readiness condition. Place the
ignition switch in the ON position without
starting the engine. If the Malfunction
Indicator Light (MIL) comes on steady for
20 seconds and then blinks for 10 sec-
onds, the I/M test condition is “not ready”.
If the MIL does not blink after 20 seconds,
the I/M test condition is “ready”.
It is recommended you visit a NISSAN
dealer to set “ready condition” or to
prepare the vehicle for testing.This vehicle is equipped with an Event
Data Recorder (EDR). The main purpose of
an EDR is to record, in certain crash or
near crash-like situations, such as an air
bag deployment or hitting a road obsta-
cle, data that will assist in understanding
how a vehicle’s systems performed. The
EDR is designed to record data related to
vehicle dynamics and safety systems for a
short period of time, typically 30 seconds
or less. The EDR in this vehicle is designed
to record such data as:
.How various systems in your vehicle
were operating;
. Whether or not the driver and passen-
ger safety belts were buckled/fas-
tened;
. How far (if at all) the driver was
depressing the accelerator and/or
brake pedal; and,
. How fast the vehicle was traveling.
. Sounds are not recorded.
These data can help provide a better
understanding of the circumstances in
which crashes and injuries occur.
NOTE: EDR data are recorded by your
vehicle only if a nontrivial crash situation
occurs; no data are recorded by the EDR
under normal driving conditions and no
personal data (e.g. name, gender, age and
crash location) are recorded. However,
other parties, such as law enforcement, could combine the EDR data with the type
of personally identifying data routinely
acquired during a crash investigation.
To read data recorded by an EDR, special
equipment is required and access to the
vehicle or the EDR is needed. In addition
to the vehicle manufacturer and NISSAN
dealer, other parties, such as law enforce-
ment, that have the special equipment,
can read the information if they have
access to the vehicle or the EDR. EDR data
will only be accessed with the consent of
the vehicle owner or lessee or as other-
wise required or permitted by law.
Technical and consumer information10-39
EVENT DATA RECORDERS (EDR)

11 Index
A
ABS (Anti-lock Braking System) .................... 5-143
Advanced Air Bag System .................................... 1-60
Air bag systemAdvanced Air Bag System ............................. 1-60
Driver and front passenger
supplemental knee air bag system ....... 1-68
Front passenger air bag and
status light................................................................. 1-62
Front-seat mounted side-impact
supplemental air bag system..................... 1-70
Roof-mounted curtain side-impact
and rollover supplemental air
bag system................................................................ 1-70
Air bag warning labels ............................................ 1-72
Air bag warning light................................. 1-73, 2-13
Air cleaner housing filter ....................................... 8-15
Air conditioner Air conditioner operation............................... 4-35
Air conditioner service...................................... 4-41
Air conditioner specification label....... 10-13
Air conditioning system refrigerant
and lubricant recommendations............. 4-41
Air conditioning system refrigerant
and oil recommendations ............................. 10-7
Automatic air conditioner ............................. 4-36
In-cabin microfilter .............................................. 4-41
Alarm, How to stop alarm (see vehicle
security system)............................................................ 2-40
Alcohol, drugs and driving ................................... 5-10
Alert Rear Door Alert....................................................... 2-58
All-mode 4WD.............................................................. 5-124
Android Auto ....................................................................... 4-2 Antenna........................................................................\
....... 4-41
Anti-lock Braking System (ABS) .................... 5-143
Anti-lock Braking System (ABS)
warning light ................................................................... 2-14
Appearance care
Exterior appearance care ................................. 7-2
Interior appearance care................................... 7-5
Apple CarPlay®................................................................... 4-2
Armrest ........................................................................\
........ 1-11
Audible reminders....................................................... 2-19
Auto closure .................................................................... 3-25
Automatic Air conditioner ........................................................ 4-36
Automatic Transmission Fluid (ATF) ........ 8-8
Door locks...................................................................... 3-6
Drive positioner...................................................... 3-40
Driving with
automatic transmission .................................. 5-18
Seat positioner ....................................................... 3-40
Automatic Emergency Braking (AEB)
system warning light................................................ 2-14
Automatic Emergency Braking (AEB) with
pedestrian detection system ............................. 5-96
Average speed ............................................................... 2-36
Avoiding collision and rollover.............................. 5-8
B
Back door (See liftgate) .......................................... 3-22
Battery........................................................................\
.......... 8-11 Battery saver system.......................... 2-49, 2-78
Intelligent Key.......................................................... 8-21
Variable voltage control system .............. 8-13
Before starting the engine................................... 5-16
Belts (See drive belts)............................................... 8-13
Blind Spot Warning (BSW) ..................................... 5-38 Booster seats.................................................................. 1-51
Brake
Anti-lock Braking System (ABS) ............ 5-143
Brake booster.......................................................... 8-17
Brake fluid ..................................................................... 8-9
Brake system ....................................................... 5-142
Parking brake operation................................. 5-22
Warning light............................................................ 2-11
Break-in schedule .................................................... 5-123
Brightness control Instrument panel .................................................. 2-50
Bulb check/instrument panel............................ 2-11
Bulb replacement ........................................................ 8-24
C
Cabin air filter ................................................................. 4-41
Camera aiding sonar function.......................... 4-24
Capacities and
recommended fluids/lubricants...................... 10-2
Car phone or CB radio ............................................ 4-42
Cargo floor box ............................................................. 2-71
Cargo light ........................................................................\
2-80
Catalytic converter, Three way catalyst ....... 5-4
Charger Wireless charger .................................................... 2-62
Child restraints .............................................................. 1-32 Booster seats........................................................... 1-51
LATCH system ......................................................... 1-35
Precautions on child restraints................. 1-33
Top tether strap .................................................... 1-37
Child safety....................................................................... 1-30
Child safety rear door lock ...................................... 3-6
Chimes Audible reminders................................................ 2-19
Seat belt warning light and chime......... 2-13