2019 NISSAN MAXIMA battery replacement

Key Battery Low
This indicator illuminates when the Intelli-
gent Key battery is running out of power.
If this indicator illuminates, replace the bat-
tery with a new one. For additional infor-
mation, refer to “Battery replacement” in
the “Do-it-yourself ” section of this manual.
Key System Fault See Owner’s Manual
Af ter the ignition switch is pushed to the
ON position, this light comes on for a period
of time and then turns off.
The Key System Fault message warns of a
malfunction with the Intelligent Key sys-
tem. If the light comes on while the engine
is stopped, it may be impossible to start
the engine.
If the light comes on while the engine is
running, you can drive the vehicle. However,
in these cases, have the system checked. It
is recommended that you visit a NISSAN
dealer for this service.
Shif t to Park
This warning illuminates when the ignition
switch is in the ACC or OFF position and the
shif t lever is not in the P (Park) position. Also,
a chime sounds when the ignition switch is
in the ACC or OFF position.If this warning illuminates, move the shif t
lever to the P (Park) position and start the
engine.
Push brake and start switch to drive
This indicator appears when the shif t lever
is in the P (Park) position.
This indicator also appears when the ve-
hicle has been started using the Remote
Engine Start function.
This indicator means that the engine will
start by pushing the ignition switch with
the brake pedal depressed. You can start
the engine from any position of the ignition
switch.
Engine start operation for Intelligent
Key system (if I-Key battery level is low)
This indicator appears when the battery of
the Intelligent Key is low and when the In-
telligent Key system and the vehicle are not
communicating normally.
If this appears, touch the ignition switch
with the Intelligent Key while depressing
the brake pedal. For additional information,
refer to “NISSAN Intelligent Key® battery dis-
charge” in the “Starting and driving” section
of this manual.
Release Parking Brake
This warning illuminates in the message
area of the vehicle information display
when the parking brake is set and the ve-
hicle is driven.
Low Fuel
This warning illuminates when the fuel level
in the fuel tank is getting low. Refuel as
soon as it is convenient, preferably before
the fuel gauge reaches 0 (Empty).
There
will be a small reserve of fuel in the tank
when the fuel gauge needle reaches 0
(Empty).
Low Washer Fluid
This warning illuminates when the
windshield-washer fluid is at a low level.
Add windshield-washer fluid as necessary.
For additional information, refer to
“Windshield-washer fluid” in the “Do-it-
yourself ” section of this manual.
Tire Pressure Low - Add Air
This warning appears when the low tire
pressure warning light in the meter illumi-
nates and low tire pressure is detected. The
warning appears each time the ignition
switch is placed in the ON position as long
as the low tire pressure warning light re-
Instruments and controls2-31

Mechanical key
The Intelligent Key contains the mechani-
cal key, which can be used in case of a
discharged battery.
To remove the mechanical key, release the
lock knob on the back of the Intelligent Key.
To install the mechanical key, firmly insert it
into the Intelligent Key until the lock knob
returns to the lock position.
The mechanical key can be used for opera-
tion in the same way as an ordinary key.
CAUTION
Always carry the mechanical key in-
stalled in the Intelligent Key slot.
For additional information, refer to “Doors”
in this section and “Storage” in the “Instru-
ments and controls” section of this manual.
Valet hand-off
When you have to leave a key with a valet,
give them the Intelligent Key itself and keep
the mechanical key with you to protect
your belongings.
To prevent the glove box from being
opened during valet hand-off, follow the
procedures below. 1. Remove the mechanical key from the Intelligent Key.
2. Lock the glove box with the mechani- cal key.
3. Hand the Intelligent Key to the valet and keep the mechanical key with you.
For additional information, refer to “Stor-
age” in the “Instruments and controls” sec-
tion of this manual.
NISSAN VEHICLE IMMOBILIZER
SYSTEM KEYS
You can only drive your vehicle using the
Intelligent Keys which are registered to the
NISSAN Vehicle Immobilizer System com-
ponents in your vehicle.
The mechanical key can be used for all the
locks.
Never leave the keys in the vehicle.
Additional or replacement keys:
If you still have a key, the key number is not
necessary when you need extra NISSAN
Vehicle Immobilizer System keys. Your ex-
isting key can be duplicated without know-
ing the key number. As many as four
NISSAN Vehicle Immobilizer System keys
can be used with one vehicle. You should
bring all NISSAN Vehicle Immobilizer Sys-
tem keys that you have to the NISSAN
dealer for registration. This is because the
registration process will erase the memory
of all key codes previously registered into
the NISSAN Vehicle Immobilizer System. Af-
ter the registration process, these compo-
nents will only recognize keys coded into
the NISSAN Vehicle Immobilizer System
during registration. Any key that is not
SPA1951
Pre-driving checks and adjustments3-3

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, a
yellow indicator illuminates with the mes-
sage “Key Battery Low” in the vehicle infor-
mation display. For additional information,
refer to “Vehicle information display warn-
ings and indicators” in the “Instruments
and controls” section of this manual.
Since the Intelligent Key is capable of 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.
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.
OPERATING RANGE
The Intelligent Key functions can only be
used when the Intelligent Key is within the
specified operating range from the request
switch
1.
LPD2073
3-8Pre-driving checks and adjustments

NOTE:
If you change the answer back horn and
light flash feature with the Intelligent
Key, the vehicle information display
screen will show the current mode af ter
the ignition switch has been cycled from
the OFF to the ON position. The vehicle
information display screen can also be
used to change the answer back horn
mode. For additional information, refer
to “Vehicle information display ” in the
“Instruments and controls” section of
this manual.
To deactivate:Press and hold the
andbuttonsfor at least 2 seconds.
The hazard indicator lights will flash three
times to confirm that the answer back
horn feature has been deactivated.
To activate: Press and hold the
andbuttonsfor at least 2 seconds
once more.
The hazard indicator lights will flash once
and the horn will sound once to confirm
that the horn beep feature has been reac-
tivated.
Deactivating the horn beep feature does
not silence the horn if the alarm is trig-
gered.
Intelligent Key button operation
light
The light blinks only when you push 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
buzzer sounds from inside and outside the
vehicle and a warning is displayed in the
instrument 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
“Vehicle information display” in the “Instru-
ments and controls” section of this manual.
LPD2836
Pre-driving checks and adjustments3-17

SymptomPossible CauseRemedy
When pushing the ignition switch to
start the engine The Key Battery Low indicator 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 Key ID Incorrect warning appears
on the vehicle information display. The Intelligent Key is not detected in-
side of the vehicle.Carry the registered Intelligent Key
with you.
When closing the trunk lid The outside chime sounds for approxi-
mately 10 seconds and the trunk lid
opens. The Intelligent Key is inside the trunk. Carry the Intelligent Key with you.
Pre-driving checks and adjustments3-19

(Af ter step 3 is performed, when the
ignition switch is pushed without de-
pressing the brake pedal, the ignition
switch position will change to ON.)
4. Push the ignition switch while depress- ing the brake pedal within 10 seconds
af ter the chime sounds. The engine will
start.
NOTE: ∙ When the ignition switch is pushed to
the ON position or the engine is
started by the above procedure, the
Intelligent Key battery discharge in-
dicator appears in the vehicle infor-
mation display even when the Intelli-
gent Key is inside the vehicle. This is
not a malfunction. To turn off the In-
telligent Key battery discharge indi-
cator, touch the ignition switch with
the Intelligent Key again.
∙ If the Intelligent Key battery dis-
charge indicator appears, replace the
battery as soon as possible. For addi-
tional information, refer to “Battery
replacement” in the “Do-it-yourself ”
section of this manual.NISSAN VEHICLE IMMOBILIZER
SYSTEM
The NISSAN Vehicle Immobilizer System
will not allow the engine to start without
the use of the registered key.
If the engine fails to start using a registered
key (for example, when interference is
caused by another registered key, an auto-
mated toll road device or automatic pay-
ment device on the key ring), restart the
engine using the following procedure:
1. Leave the ignition switch in the ON po- sition for approximately 5 seconds.
2. Place the ignition switch in the OFF or LOCK position, and wait approximately
10 seconds.
3. Repeat steps 1 and 2.
4. Restart the engine while holding the device (which may have caused the in-
terference) separate from the regis-
tered key.
If the no start condition re-occurs, NISSAN
recommends placing the registered key on
a separate key ring to avoid interference
from other devices. ∙ Make sure the area around the vehicle is
clear.
∙ Check fluid levels such as engine oil, coolant, brake fluid, and window washer
fluid as frequently as possible, or at least
whenever you refuel.
∙ Check that all windows and lights are clean.
∙ Visually inspect tires for their appear- ance and condition. Also check tires for
proper inflation.
∙ Lock all doors.
∙ Position seat and adjust head restraints/headrests.
∙ Adjust inside and outside mirrors.
∙ Fasten seat belts and ask all passen- gers to do likewise.
∙ Check the operation of warning lights when the ignition switch is pushed to
the ON position. For additional informa-
tion, refer to “Warning lights, indicator
lights and audible reminders” in the “In-
struments and controls” section of this
manual.
BEFORE STARTING THE ENGINE
5-14Starting and driving

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
Continuously Variable Transmission (CVT)
fluid ............................................ 8-10
Power Steering Fluid (PSF) .......................8-11
Brake fluid ....................................... 8-11
Windshield-washer fluid ........................8-12
Windshield-washer fluid reservoir ............8-12
Battery......................................... 8-13
Jump starting ............................... 8-14
Drive belt ....................................... 8-15
Spark plugs .................................... 8-15
Replacing spark plugs ....................... 8-15
Air cleaner ...................................... 8-16
In-cabin microfilter .......................... 8-16Windshield wiper blades
........................8-17
Cleaning .................................... 8-17
Replacing ................................... 8-17
Brakes.......................................... 8-18
Fuses ........................................... 8-19
Engine compartment ....................... 8-19
Passenger compartment ....................8-20
Battery replacement ........................... 8-21
NISSAN Intelligent Key® ......................8-22
Lights .......................................... 8-23
Headlights ................................... 8-23
Front park/turn signal/side marker
light ......................................... 8-23
Fog lights (if so equipped) ...................8-23
Exterior and interior lights ...................8-24
Wheels and tires ................................ 8-26
Tire pressure ................................ 8-26
Tire labeling ................................. 8-30
T ypes

of tires ................................ 8-33
Tire chains .................................. 8-34
Changing wheels and tires ..................8-34

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, ap-ply 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 key is in the OFF or LOCK position when performing 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 jew-
elry, such as rings, watches, etc. be-
fore working on your vehicle.
∙ Always wear eye protection whenever you work on your vehicle. ∙ Your vehicle is equipped with an auto-
matic engine cooling fan. It may come
on at any time without warning, even
if the ignition key is in the OFF position
and the engine is not running. To
avoid injury, always disconnect the
negative battery cable before work-
ing near the fan.
∙ 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 neces-
sary to work under the vehicle, sup-
port 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. It
is recommended that you visit a
NISSAN dealer for this service because
the fuel lines are under high pressure
even when the engine is off.
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 vehicle
fluids can damage the environment. Al-
ways conform to local regulations 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 component
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.
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.
MAINTENANCE PRECAUTIONS
8-2Do-it-yourself