2020 NISSAN ARMADA suspension

The Vehicle Dynamic Control (VDC) sys-
tem uses various sensors to monitor
driver inputs and vehicle motion. Under
certain driving conditions, the VDC sys-
tem helps to perform the following func-
tions.
.Controls brake pressure to reduce
wheel slip on one slipping drive wheel
so power is transferred to a non
slipping drive wheel on the same axle.
. Controls brake pressure and engine
output to reduce drive wheel slip
based on vehicle speed (traction con-
trol function).
. Controls brake pressure at individual
wheels and engine output to help the
driver maintain control of the vehicle
in the following conditions:
— understeer (vehicle tends to not
follow the steered path despite
increased steering input)
— oversteer (vehicle tends to spin due to certain road or driving condi-
tions).
The VDC system can help the driver to
maintain control of the vehicle, but it
cannot prevent loss of vehicle control in
all driving situations.
When the VDC system operates, the VDC
warning light
in the instrument panel
flashes so note the following: .
The road may be slippery or the
system may determine some action
is required to help keep the vehicle on
the steered path.
. You may feel a pulsation in the brake
pedal and hear a noise or vibration
from under the hood. This is normal
and indicates that the VDC system is
working properly.
. Adjust your speed and driving to the
road conditions.
If a malfunction occurs in the system, the
VDC warning light
illuminates in the
instrument panel. The VDC system auto-
matically turns off.
The VDC OFF switch is used to turn off the
VDC system. The VDC off indicator
illuminates to indicate the VDC system is
off. When the VDC switch is used to turn
off the system, the VDC system still
operates to prevent one drive wheel from
slipping by transferring power to a non
slipping drive wheel. The VDC warning
light
flashes if this occurs. All other
VDC functions are off, and the VDC
warning light
will not flash. The VDC
system is automatically reset to on when
the ignition switch is placed in the OFF
position then back to the ON position.
When the 4L position is selected with the
4WD shift switch, the VDC system is
disabled and the VDC off indicator light illuminates (for 4WD models).
See “Vehicle Dynamic Control (VDC) warn-
ing light” (P.2-17) and “Vehicle Dynamic
Control (VDC) off indicator light” (P.2-20).
The computer has a built-in diagnostic
feature that tests the system each time
you start the engine and move the vehicle
forward or in reverse at a slow speed.
When the self-test occurs, you may hear a
“clunk” noise and/or feel a pulsation in the
brake pedal. This is normal and is not an
indication of a malfunction.
WARNING
.
The VDC system is designed to
help improve driving stability but
does not prevent accidents due
to abrupt steering operation at
high speeds or by careless or
dangerous driving techniques.
Reduce vehicle speed and be
especially careful when driving
and cornering on slippery sur-
faces and always drive carefully.
. Do not modify the vehicle’s sus-
pension. If suspension parts such
as shock absorbers, struts,
springs, stabilizer bars, bushings
and wheels are not NISSAN re-
commended for your vehicle or
Starting and driving5-133
VEHICLE DYNAMIC CONTROL (VDC) SYSTEM

SCE0876
2. Loosen each wheel nut one or twoturns by turning counterclockwise
with the wheel nut wrench. Do not
remove the wheel nuts until the tire
is off the ground.
NCE130
3. Install the assembled jack rod into the
jack as shown.
4. Carefully raise the vehicle until the clearance between the tire and
ground is achieved.
5. To lift the vehicle, securely hold the jack lever and rod with both hands
and turn the jack lever.
NOTE:
Before jacking up the vehicle, make
sure the ignition switch is placed in
the OFF position. If the vehicle is lifted
up with the engine running, the auto-
leveling suspension will become dis-
abled after 120 seconds. To reset the
auto-leveling suspension, cycle the
In case of emergency6-9

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

tires. Skid and traction capabilities of
studded snow tires, on wet or dry sur-
faces, may be poorer than that of non-
studded snow tires.
TIRE CHAINS
Use of tire chains may be prohibited
according to location. Check the local
laws before installing tire chains. When
installing tire chains, make sure they are
the proper size for the tires on your
vehicle and are installed according to
the chain manufacturer’s suggestions.
Use only SAE Class S chains.Class “S”
chains are used on vehicles with re-
stricted tire to vehicle clearance. Vehicles
that can use Class “S” chains are designed
to meet the SAE standard minimum
clearances between the tire and the
closest vehicle suspension or body com-
ponent required to accommodate the
use of a winter traction device (tire chains
or cables). The minimum clearances are
determined using the factory equipped
tire size. Other types may damage your
vehicle. Use chain tensioners when re-
commended by the tire chain manufac-
turer to ensure a tight fit. Loose end links
of the tire chain must be secured or
removed to prevent the possibility of
whipping action damage to the fenders
or underbody. If possible, avoid fully load-
ing your vehicle when using tire chains. In addition, drive at a reduced speed. Other-
wise, your vehicle may be damaged and/
or vehicle handling and performance may
be adversely affected.
Tire chains must be installed only on
the rear wheels and not on the front
wheels.
Never install tire chains on the full-size
temporary use only spare tire (if so
equipped).
Do not use tire chains on dry roads.
Driving with tire chains in such conditions
can cause damage to the various me-
chanisms of the vehicle due to some
overstress.
SDI1662
CHANGING WHEELS AND TIRES
Tire rotation
NISSAN recommends rotating the
tires every 7,500 miles (12,000 km).
(See “Flat tire” (P.6-3) for tire repla-
cing procedures.)
As soon as possible, tighten the
wheel nuts to the specified torque
with a torque wrench.
Wheel nut tightening torque:98 ft-lb (133 N·m)
The wheel nuts must be kept
tightened to the specification at
Do-it-yourself8-37

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).
Evaporative Emissions Control Vapor
Lines*:
Check vapor lines for leaks or looseness.
Tighten connections or replace parts as
necessary.
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:
Tires should be rotated every 7,500 miles
(12,000 km). When rotating 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)

9-8Maintenance and schedules
STANDARD MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, L = Lubricate
MAINTENANCE OPERATION
Perform at number of miles, kilometers or months,
whichever comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
7.5
(12) 6 15
(24) 12 22.5
(36) 18 30
(48) 24 37.5
(60) 30 45
(72) 36 52.5
(84) 42 60
(96) 48 67.5
(108) 54 75
(120) 60 82.5
(132) 66 90
(144) 72 97.5
(156) 78 105
(168) 84 112.5
(180) 90 120
(192) 96
Air cleaner filter NOTE (1) R R R R
Automatic transmission fluid NOTE (2)
Brake fluid$ RR RR
Brake lines and cables II II I I I I
Brake pads and rotors$ II II I I I I
Drive belts NOTE (3) I* I* I* I* I*
Engine coolant* NOTE (4)(5)
Engine oil & oil filter$ RRRRRRRRRR RR R RR R
EVAP vapor lines & Fuel lines I* I* I*I*
Exhaust system$ II II
Fuel filter NOTE (2)
In-cabin microfilter RR RR R R R R
Intake & exhaust valve clearance NOTE (6)
Intelligent Key battery IRRRR
Propeller shaft & drive shaft boots (4WD models)$ II II I I I I
Propeller shaft grease (4WD models) L L L L L L L L
Spark plugs NOTE (7) Replace every 105,000 miles (168,000 km)
Steering gear and linkage, axle and suspension parts$ II II
Tire

rotation NOTE (8)
Transfer fluid & differential gear oil See NOTE (9)II II I I II

9-10Maintenance and schedules
The maintenance intervals shown on the
preceding pages are for normal operating
conditions. If the vehicle is mainly oper-
ated under severe driving conditions as
shown below, more frequent mainte-
nance must be performed on the follow-
ing items as shown in the table.
Severe driving conditions
.Repeated short trips of less than 5
miles (8 km).
. Repeated short trips of less than 10
miles (16 km) with outside tempera-
tures remaining below freezing.
. Operating in hot weather in stop-and-
go “rush hour” traffic.
. Extensive idling and/or low speed
driving for long distances, such as
police, taxi or door-to-door delivery
use.
. Driving in dusty conditions.
. Driving on rough, muddy, or salt
spread roads.
. Towing a trailer, or using a camper or
car-top carrier
Maintenance operation: Inspect = Inspect
and correct or replace as necessary.Maintenance item Maintenance opera- tionMaintenance interval
Brake fluid Replace Every 10,000 miles (16,000 km) or 12 months
Brake pads & rotors Inspect Every 5,000 miles (8,000 km) or 6 months
Engine oil & oil filter Replace Every 5,000 miles (8,000 km) or 6 months
Exhaust system Inspect Every 5,000 miles (8,000 km) or 6 months
Propeller shaft & drive shaft
boots (4WD models) Inspect Every 5,000 miles (8,000 km) or 6
months
Steering gear & linkage, axle &
suspension parts Inspect Every 5,000 miles (8,000 km) or 6
months
MAINTENANCE UNDER SEVERE
DRIVING CONDITIONS

10-26Technical and consumer information
trailer lights while using the ve-
hicle tail light, stoplight and turn
signal circuits as a signal source.
The module/converter must draw
no more than 15 milliamps from
the stop and tail lamp circuits.
Using a module/converter that
exceeds these power require-
ments may damage the vehicle’s
electrical system. See a reputable
trailer retailer to obtain the prop-
er equipment and to have it
installed.
. Do not connect electrical devices
that draw more than 40 amps to
the vehicle. The fusible link may
melt.
Trailer lights should comply with federal
and/or local regulations. For assistance in
hooking up trailer lights, contact a NISSAN
dealer or reputable trailer retailer.
Trailer brakes
When towing a trailer load of 3,500 lbs.
(1,587 kg) or more, trailers with a brake
system MUST be used. However, most
states require a separate braking system
on trailers with a loaded weight above a
specific amount. Make sure the trailer
meets the local regulations and the
regulations where you plan to tow. Several types of braking systems are
available.
Surge Brakes -
The surge brake actuator
is mounted on the trailer tongue with a
hydraulic line running to each trailer
wheel. Surge brakes are activated by the
trailer pushing against the hitch ball
when the tow vehicle is braking. Hydraulic
surge brakes are common on rental
trailers and some boat trailers. In this
type of system, there is no hydraulic or
electric connection for brake operation
between the tow vehicle and the trailer.
Electric Trailer Brakes - Electric braking
systems are activated by an electronic
signal sent from a trailer brake controller
(special brake sensing module).
Have a professional supplier of towing
equipment make sure the trailer brakes
are properly installed and demonstrate
proper brake function testing.
WARNING
Never connect a trailer brake system
directly to the vehicle brake system.
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.