key battery NISSAN MAXIMA 2021 Owner´s Manual

If the Intelligent Key is within the operating
range, it is possible for anyone, even some-
one who does not carry the Intelligent Key,
to push the ignition switch to start the
engine.
The operating range of the engine start
function is inside of the vehicle
O1.
• The luggage area is not included in the operating range, but the Intelligent Key
may function.
• If the Intelligent Key is placed on the in- strument panel, inside the glove box,
storage bin or door pocket, the Intelligent
Key may not function.
• If the Intelligent Key is placed near the door or window outside the vehicle, the
Intelligent Key may function.
PUSH-BUTTON IGNITION SWITCH
POSITIONS
LOCK (Normal parking position)
The ignition switch can only be locked in
this position.
The ignition switch will be unlocked when it
is pushed to the ACC position while carry-
ing the Intelligent Key. The ignition switch will lock when any door
is opened or closed with the ignition
switched off.
ACC (Accessories)
This position activates electrical accesso-
ries, such as the radio, when the engine is
not running.
ACC has a battery saver feature that will
place the ignition switch in the OFF position
af ter a period of time under the following
conditions:
• All doors are closed.
• The shif t lever is in P (Park).
• The hazard lamps are off.
• The turn signals are off.
The battery saver feature will be canceled if
any of the following occur:
• Any door is opened.
• The shif t lever is moved out of P (Park).
• The ignition switch changes position.
• The hazard lamps are turned on.
ON (Normal operating position)
This position turns on the ignition system
and electrical accessories.
ON has a battery saver feature that will
place the ignition switch in the OFF posi-
tion, if the vehicle is not running, af ter some
time under the following conditions:
• All doors are closed.
• The shif t lever is in P (Park).
• The hazard lamps are off.
• The turn signals are off.
The battery saver feature will be canceled if
any of the following occur:
• Any door is opened.
• The shif t lever is moved out of the P (Park)
position.
• The ignition switch changes position.
• The hazard lamps are turned on.
• The turn signals are turned on.
CAUTION
Do not leave the vehicle with the igni-
tion switch in the ACC or ON position
when the engine is not running for an
extended period. This can discharge
the battery.
5-12Starting and driving

OFF
The ignition switch is in the OFF position
when the engine is turned off using the
ignition switch. The ignition switch heart
beat function (pulsed illumination) may ac-
tivate for a period of time when any door is
unlocked and when the door opened/
closed status changes in the OFF and ACC
positions.
EMERGENCY ENGINE SHUT OFF
To shut off the engine in an emergency
situation while driving, perform the follow-
ing procedure:
• Rapidly push the ignition switch threeconsecutive times in less than 1.5 sec-
onds, or
• Push and hold the ignition switch for more than 2 seconds.
NISSAN INTELLIGENT KEY®
BATTERY DISCHARGE
If the battery of the NISSAN Intelligent Key®
is discharged, or environmental conditions
interfere with the Intelligent Key operation,
start the engine according to the following
procedure:
1. Place the shif t lever in the P (Park) position.
2. Firmly apply the foot brake.
3. Touch the ignition switch with the Intel- ligent Key as illustrated. (A chime will
sound.) (Af ter step 3 is performed, when the ig-
nition 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 tothe ON position or the engine is started
by the above procedure, the Intelligent
Key battery discharge indicator ap-
pears in the vehicle information dis-
play even when the Intelligent Key is
inside the vehicle. This is not a mal-
function. To turn off the Intelligent Key
battery discharge indicator, touch the
ignition switch with the Intelligent Key
again.
• If the Intelligent Key battery discharge indicator appears, replace the battery
as soon as possible. For additional in-
formation, see “Battery replacement”
(P. 8-21).
SSD0860
Starting and driving5-13

cranking the engine, release the accel-
erator pedal. Crank the engine with
your foot off the accelerator pedal by
depressing the brake pedal and push-
ing the ignition switch to start the en-
gine. If the engine starts, but fails to
run, repeat the above procedure.
CAUTION
Do not operate the starter for more
than 15 seconds at a time. If the engine
does not start, push the ignition switch
to the OFF position and wait 10 seconds
before cranking again, otherwise the
starter could be damaged.
4. Warm-up:
Allow the engine to idle for at least 30
seconds af ter starting. Do not race the
engine while warming it up. Drive at a
moderate speed for a short distance
first, especially in cold weather. In cold
weather, keep the engine running for a
minimum of 2 to 3 minutes before shut-
ting it off. Starting and stopping the en-
gine over a short period of time may
make the vehicle more difficult to start. 5. To stop the engine, move the shif t lever
to the P (Park) position and push the
ignition switch to the OFF position.
NOTE:
Care should be taken to avoid situa-
tions that can lead to potential battery
discharge and potential no-start con-
ditions such as:
1. Installation or extended use of elec- tronic accessories that consume bat-
tery power when the engine is not
running (phone chargers, GPS, DVD
players, etc.).
2. The 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.
REMOTE ENGINE START
Vehicles started with the Remote Engine
Start require the ignition switch to be
placed in the ON position before the shif t
lever can be moved from the P (Park) posi-
tion. To place the ignition switch in the ON
position, follow these steps:
1. Make sure that the Intelligent Key is on you.
2. Apply the brake.
3. Push the ignition switch once to the ON position.
For additional information, see “NISSAN In-
telligent Key®” (P. 3-2).
Starting and driving5-15

FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing, apply
de-icer through the key hole. If the lock
becomes frozen, heat the key before in-
serting it into the key hole or use the re-
mote keyless entry function on the Intelli-
gent Key.
ANTIFREEZE
In the winter when it is anticipated that the
temperature will drop below 32°F (0°C),
check the antifreeze to assure proper win-
ter protection. For additional information,
see “Engine cooling system” (P. 8-4).
BATTERY
If the battery is not fully charged during
extremely cold weather conditions, the
battery fluid may freeze and damage the
battery. To maintain maximum efficiency,
the battery should be checked regularly.
For additional information, see “Battery”
(P. 8-13).
DRAINING OF COOLANT WATER
If the vehicle is to be lef t outside without
antifreeze, drain the cooling system, includ-
ing the engine block. Refill before operating
the vehicle. For additional information, see
“Changing engine coolant” (P. 8-5).
TIRE EQUIPMENT
1. SUMMER tires have a tread designed toprovide superior performance on dry
pavement. However, the performance of
these tires will be substantially reduced
in snowy and icy conditions. If you oper-
ate your vehicle on snowy or icy roads,
NISSAN recommends the use of MUD &
SNOW or ALL SEASON TIRES on all four
wheels. It is recommended that you visit
a NISSAN dealer for the tire type, size,
speed rating and availability information.
2. For additional traction on icy roads, studded tires may be used. However,
some U.S. states and Canadian prov-
inces prohibit their use. Check local,
state and provincial laws before install-
ing studded tires.
Skid and traction capabilities of studded
snow tires on wet or dry surfaces may be
poorer than that of non-studded snow
tires.
SPECIAL WINTER EQUIPMENT
It is recommended that the following items
be carried in the vehicle during winter:
• A scraper and stiff-bristled brush to re- move ice and snow from the windows
and wiper blades. • A sturdy, flat board to be placed under the
jack to give it firm support.
• A shovel to dig the vehicle out of snowdrif ts.
• Extra washer fluid to refill the windshield- washer fluid reservoir.
DRIVING ON SNOW OR ICE
WARNING
• Wet ice (32°F, 0°C and freezing rain),
very cold snow or ice can be slick and
very hard to drive on. The vehicle will
have much less traction or “grip” un-
der these conditions. Try to avoid
driving on wet ice until the road is
salted or sanded.
• Whatever the condition, drive with
caution. Accelerate and slow down
with care. If accelerating or down-
shif ting too fast, the drive wheels will
lose even more traction.
• Allow more stopping distance under
these conditions. Braking should be
started sooner than on dry
pavement.
• Allow greater following distances on
slippery roads.
COLD WEATHER DRIVING
5-120Starting 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 ............................... 8-15
Drive belt ....................................... 8-15
Spark plugs .................................... 8-16
Replacing spark plugs .......................8-16
Air cleaner ..................................... 8-16
In-cabin microfilter .......................... 8-17Windshield 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

NISSAN INTELLIGENT KEY®
Replace the battery in the Intelligent Key as
follows:
1. Remove the mechanical key from theIntelligent 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.
LDI2001LDI2637
8-22Do-it-yourself

15,000 miles/(24,000 km)/
18 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Not Applicable. Proceed to next interval
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Front drive shaf t boots
• Steering gear & linkage
• Axle & suspension parts
• Horn, lights, signals, wipers, rear hatch/hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essential:
• Replace engine oil & filter
20,000 miles/(32,000 km)/
24 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Not Applicable. Proceed to next interval
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Front drive shaf t boots
• Steering gear & linkage
• Axle & suspension parts
• Horn, lights, signals, wipers, rear hatch/ hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essential:
• Replace engine oil & filter
• Replace brake fluid
22,500 miles/(36,000 km)/
18 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Intelligent key battery
• Horn, lights, signals, wipers, rear hatch/ hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essential:
• Replace engine oil & filter
• Tire rotation
Severe maintenance:
Not Applicable. Proceed to next interval
9-10Maintenance and schedules

40,000 miles/(64,000 km)/
48 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Not Applicable. Proceed to next interval
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Front drive shaf t boots
• Steering gear & linkage
• Axle & suspension parts
• Horn, lights, signals, wipers, rear hatch/hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essential:
• Replace engine oil & filter
• Replace brake fluid
45,000 miles/(72,000 km)/
36 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines and cables
• Brake pads and rotors
• CVT transmission fluid
• Front drive shaf t boots
• Horn, lights, signals, wipers, rear hatch/ hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essential:
• Replace intelligent key battery
• Replace in-cabin microfilter
• Replace engine oil & filter
• Tire rotation Severe maintenance:
Not Applicable. Proceed to next interval
Maintenance and schedules9-13

67,500 miles/(108,000 km)/
54 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Horn, lights, signals, wipers, rear hatch/hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essential:
• Replace engine oil & filter
• Replace intelligent key battery
• Tire rotation
Severe maintenance:
Not Applicable. Proceed to next interval
70,000 miles/(112,000 km)/
84 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Not Applicable. Proceed to next interval
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Front drive shaf t boots
• Steering gear & linkage
• Axle & suspension parts
• Horn, lights, signals, wipers, rear hatch/ hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth Essential:
• Replace engine oil & filter
• Replace brake fluid
Maintenance and schedules9-17

90,000 miles/(144,000 km)/
72 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Inspections:
• Brake lines and cables
• Brake pads and rotors
• CVT transmission fluid
• Engine drive belts*
• Fuel tank vapor vent system*
• Fuel lines/connections*
• Exhaust system
• Front drive shaf t boots
• Steering gear and linkage
• Axle and suspension parts
• Horn, lights, signals, wipers, rear hatch/hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth Essential:
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil & filter
• Replace in-cabin microfilter
• Replace intelligent key battery
• Tire rotation
Severe maintenance:
Not Applicable. Proceed to next interval
(1) If operating mainly in dusty conditions,
more frequent maintenance may be
required.
* Maintenance items and intervals with “*”
are recommended by NISSAN for reliable
vehicle operation. The owner need not per-
form such maintenance in order to main-
tain the emission warranty or manufac-
turer recall liability. Other maintenance
items and intervals are required.
90,000 miles/(144,000 km)/
108 months
Perform at number of miles, kilometers or
months, whichever comes first.
Standard maintenance:
Not Applicable. Proceed to next interval
Severe maintenance:
Inspections:
• Brake pads & rotors
• Exhaust system
• Front drive shaf t boots
• Steering gear & linkage
• Axle & suspension parts
• Horn, lights, signals, wipers, rear hatch/
hood lif t supports
• All fluids inspected (engine, wiper, brake, power steering, coolant)
• Hose inspections
• Engine air filter
• Suspension components (shocks, sub- frame, tie rods)
• Battery terminals and cables, battery test
• Tire pressure, treadwear and depth
Essential:
• Replace engine oil & filter
• Replace brake fluid
9-20Maintenance and schedules