2020 NISSAN FRONTIER battery replacement

You cannot move the transfer 4WD shif t
switch between 4H and 4LO unless you
stop the vehicle and move the shif t lever to
the N (Neutral) position with the brake
pedal depressed.
Turn signal/hazard
indicator lights
The appropriate light flashes when the turn
signal switch is activated.
NOTE:
In case of turn signal light bulb malfunc-
tion, the turn signal will flash at a higher
frequency when the turn signal switch is
activated.
Both lights flash when the hazard switch is
turned on.
Vehicle Dynamic Control
(VDC) OFF indicator light
This indicator light comes on when the
VDC OFF switch is pushed to the OFF posi-
tion, the transfer case is in the 4LO position
(
model), or when the VDC system is
not functioning properly. This indicates the
VDC system is not operating.
Push the VDC OFF switch again or restart
the engine and the system will operate normally. For additional information, refer
to “Vehicle Dynamic Control (VDC) system”
in the “Starting and driving” section of this
manual.
The VDC light also comes on when the
push-button ignition switch is in the ON
position. The light will turn off af ter about 2
seconds if the system is operational. If the
light stays on or comes on along with the
indicator light while you are driving,
have the VDC system checked. It is recom-
mended that you visit a NISSAN dealer for
this service.
If the battery is removed or discharged, the
VDC system is disabled and the VDC indi-
cator light will not turn off af ter 2 seconds
when the ignition switch is placed in the ON
position. To reset the system, you must
perform the reset procedure. For addi-
tional information, refer to “Vehicle Dy-
namic Control (VDC) system” in the “Start-
ing and driving” section of this manual.
If the light does not go off af ter performing
the reset procedure, have the traction con-
trol system checked. It is recommended that
you visit a NISSAN dealer for this service.
While the VDC system is operating, you
might feel slight vibration or hear the sys-
tem working when starting the vehicle or
accelerating, but this is normal. The VDC system will be disabled and the
VDC light will illuminate when the elec-
tronic locking rear differential (E-lock) sys-
tem switch (if so equipped) is turned on
and the E-lock system is engaged. If the
E-lock system disengages or the switch is
turned off, the VDC system will be enabled
and the VDC light will turn off.
AUDIBLE REMINDERS
Brake pad wear warning
The disc brake pads have audible wear
warnings. When a disc brake pad requires
replacement, it makes a high pitched
scraping sound when the vehicle is in mo-
tion, whether or not the brake pedal is de-
pressed. Have the brakes checked as soon
as possible if the warning sound is heard.
Light reminder chime
With the ignition switch placed in the OFF
position, a chime sounds when the driver's
door is opened if the headlights or parking
lights are on.
Turn the headlight control switch off before
leaving the vehicle.
2-24Instruments and controls

WARNING
• Radio waves could adversely affect
electric medical equipment. Those
who use a pacemaker should contact
the electric medical equipment
manufacturer for the possible influ-
ences before use.
• The Intelligent Key transmits radio
waves when the buttons are pressed.
The FAA advises the radio waves may
affect aircraf t navigation and com-
munication systems. Do not operate
the Intelligent Key while on an air-
plane. Make sure the buttons are not
operated unintentionally when the
unit is stored for a flight.
The Intelligent Key can operate all the door
locks using the remote control function. The
operating environment and/or conditions
may affect the Intelligent Key operation.
Be sure to read the following before using
the Intelligent Key.
CAUTION
• Be sure to carry the Intelligent Key
with you when operating the vehicle.
• Never leave the Intelligent Key in the
vehicle when you leave the vehicle. The Intelligent Key is always communicat-
ing with the vehicle as it receives radio
waves. The Intelligent Key transmits weak
radio waves. Environmental conditions
may interfere with the operation of the In-
telligent Key under the following operating
conditions:
• When operating near a location where
strong radio waves are transmitted, such
as a TV tower, power station and broad-
casting station.
• When in possession of wireless equip- ment, such as a cellular telephone, trans-
ceiver, or a CB radio.
• When the Intelligent Key is in contact with or covered by metallic materials.
• When any type of radio wave remote con- trol is used nearby.
• When the Intelligent Key is placed near an electric appliance such as a personal
computer.
• When the vehicle is parked near a parking meter.
In such cases, correct the operating condi-
tions before using the Intelligent Key func-
tion or use the mechanical key.
Although the life of the battery varies de-
pending on the operating conditions, the battery’s life is approximately two years. If
the battery is discharged, replace it with a
new one.
When the Intelligent Key battery is low, the
NISSAN Intelligent Key® warning light will
blink af ter the ignition switch is placed in
the ON position.
Since the Intelligent Key is continuously re-
ceiving radio waves, if the key is lef t near
equipment which transmits strong radio
waves, such as signals from a TV and per-
sonal computer, the battery life may be-
come shorter.
When the battery is discharged, firmly apply
the foot brake and touch the ignition switch
with the Intelligent Key. Then push the igni-
tion switch while depressing the brake pedal
within 10 seconds af ter the chime sound. For
additional information, refer to “Push-button
ignition switch” in the “Starting and driving”
section of this manual.
For additional information, refer to “Battery
replacement” in the “Do-it-yourself ” section
of this manual.
As many as four Intelligent Keys can be
registered and used with one vehicle. For
information about the purchase and use of
additional Intelligent Keys, it is recom-
mended that you visit a NISSAN dealer.
NISSAN INTELLIGENT KEY®
3-8Pre-driving checks and adjustments

Intelligent Key button operation
light
The light blinks only when you press any
button on the Intelligent Key. The light illu-
mination only signifies that the key fob has
transmitted a signal. You may look and/or
listen to verif y that the vehicle has per-
formed the intended operation. The num-
ber of blinks identifies each registered key
(i.e. 1 blink = 1st key,...,4 blinks = 4th key) for
your own identification purposes.If the light does not blink, your battery may
be too weak to communicate to the ve-
hicle. If this occurs, the battery may need to
be replaced. For additional information re-
garding the replacement of a battery, refer
to “Battery replacement” in the “Do-it-
yourself ” section of this manual.
WARNING SIGNALS
To help prevent the vehicle from moving
unexpectedly by erroneous operation of
the Intelligent Key or to help prevent the
vehicle from being stolen, a chime or chirp
sounds from inside and outside the vehicle
and a warning is displayed in the instru-
ment panel.
When a chime or beep sounds or a warning
is displayed, be sure to check the vehicle
and the Intelligent Key.
For additional information, refer to
“Troubleshooting guide” in this section and
“Warning lights, indicator lights and audible
reminders” in the “Instruments and con-
trols” section of this manual.
LPD2836
Pre-driving checks and adjustments3-11

TROUBLESHOOTING GUIDE
Verif y the location of all Intelligent Keys that are programmed for the vehicle. If another Intelligent Key is in range or inside the vehicle, the
vehicle system may respond differently than expected.
SymptomPossible CauseRemedy
When pushing the ignition switch to
stop the engine The Shif t P (Park) warning light appears
on the display and the inside warning
chime sounds continuously. The shif t lever is not in the P (Park) po-
sition.
Move the shif t lever to the P (Park) po-
sition.
When opening the driver's door to get
out of the vehicle The door open warning light appears
on the display and the inside warning
chime sounds continuously. The ignition switch is in the AUTO ACC
position.
Place the ignition switch in the ON po-
sition or close the driver’s door.
When closing the door af ter getting
out of the vehicle The NISSAN Intelligent Key® warning
light appears on the display, the out-
side chime sounds three times and the
inside warning chime sounds for ap-
proximately three seconds.
The Intelligent Key is not detected in-
side of the vehicle.
Place the ignition switch in the OFF
position.
The Shif t P (Park) warning light appears
on the display and the inside and out-
side chimes sound continuously. The ignition switch is in the ACC or OFF
position and the shif t lever is not in the
P (Park) position.
Carry the Intelligent Key with you.
When closing the door with the inside
lock knob turned to LOCK The outside chime sounds for approxi-
mately three seconds and all the doors
unlock.
The Intelligent Key is inside the vehicle. Carry the Intelligent Key with you.
When pushing the ignition switch to
start the engine The NISSAN Intelligent Key® warning
light appears on the display.
The battery charge is low.Replace the battery with a new one.
For additional information, refer to
“Battery replacement” in the “Do-it-
yourself ” section of this manual.
The NISSAN Intelligent Key® warning
light appears on the display . The Intelligent Key is not detected in-
side of the vehicle.Carry the registered Intelligent Key
with you.
3-12Pre-driving checks and adjustments

8 Do-it-yourself
Maintenance precautions.......................8-2
Engine compartment check locations ...........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 oil filter ..............8-6
Automatic Transmission Fluid (ATF) .............8-10
Power Steering Fluid (PSF) ......................8-10
Brake fluid ....................................... 8-11
Brake fluid .................................... 8-11
Windshield-washer fluid ........................8-12
Windshield-washer fluid reservoir ...........8-12
Battery......................................... 8-13
Jump starting ............................... 8-14
Variable voltage control system ................8-15
Drive belt ....................................... 8-15
Spark plugs .................................... 8-16
Replacing spark plugs .......................8-16Air cleaner
..................................... 8-17
In-cabin microfilter .......................... 8-17
Windshield wiper blades ........................8-18
Cleaning .................................... 8-18
Replacing ................................... 8-19
Brakes ......................................... 8-20
Fuses .......................................... 8-20
Engine compartment ....................... 8-21
Passenger compartment ...................8-22
Battery replacement ........................... 8-24
NISSAN Intelligent Key® ......................8-24
Lights .......................................... 8-26
Headlights .................................. 8-26
Fog lights (if so equipped) ...................8-27
Exterior and interior lights ...................8-28
Wheels and tires ............................... 8-30
Tire pressure ................................ 8-30
Tire labeling ................................. 8-33
T
ypes of tires ................................ 8-36
Tire chains .................................. 8-37
Changing wheels and tires ..................8-38

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,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. Move the shif t le-
ver to P (Park).
• Be sure the ignition switch is in the
OFF or LOCK position when perform-
ing 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
jewelry, such as rings, watches, etc.
before working on your vehicle.
• Always wear eye protection when-
ever 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 nec-
essary to work under the vehicle,
support 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
the engine 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 ve-
hicle fluids can damage the environ-
ment. Always conform to local regula-
tions 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 compo-
nent 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.
NISSAN recommends the use of Genuine
NISSAN parts or equivalent. The use of parts
that do not meet or exceed NISSAN specifica-
tions, can cause damage to your vehicle, and
have an effect on your warranty coverage. It is
recommended that you visit a NISSAN dealer
parts department who can provide informa-
tion on the proper parts for your vehicle.
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.
NOTE:
If the battery is dead the transmission will
not manually shif t into other positions.
MAINTENANCE PRECAUTIONS
8-2Do-it-yourself

CAUTION
Be careful not to allow children to swal-
low the battery or removed parts.
NISSAN INTELLIGENT KEY®
Replace the battery in the Intelligent Key as
follows:
1. Remove the mechanical key from the Intelligent Key.
2. Insert a small flathead screwdriver
OA
into the slitOBof the corner and twist it
to separate the upper part from the
lower part. Place a cloth over the screw-
driver to protect the casing.
LDI2001
BATTERY REPLACEMENT
8-24Do-it-yourself

3. Replace the battery with a new one.Recommended battery: CR2032 or
equivalent.• Do not touch the internal circuit and electric terminals as doing so could
cause a malfunction.
• Hold the battery by the edges. Holding the battery across the contact points
will seriously deplete the storage ca-
pacity.
• Make sure that the + side faces the bottom of the lower part.
4. Close the lid securely as illustrated with
OCandOD.
5. Operate the buttons to check the operation.
If you need assistance with replacement, it
is recommended that you visit a NISSAN
dealer for this service. FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any interfer-
ence received, including interference
that may cause undesired operation.
Note:
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s author-
ity to operate the equipment.
For Canada:
This device complies with Industry
Canada licence-exempt RSS standard(s).
Operation is subject to the following two
conditions: (1) this device may not cause
interference, and (2) this device must ac-
cept any interference, including interfer-
ence that may cause undesired opera-
tion of the device.
LDI2637
Do-it-yourself8-25