battery NISSAN ALTIMA 2023 Service Manual

Do not attach stickers (including transpar-
ent material), install accessories or apply
additional paint near the sonar sensors.
Do not strike or damage the area around
the sonar sensors. It is recommended that
you visit a NISSAN dealer if the area around
the sonar sensors is damaged due to a
collision.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. 8-5).
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. 8-14).
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. 8-6).
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.
3. Tire chains may be used. For additional information, see “Tire chains” (P. 8-37).
COLD WEATHER DRIVING
Starting and driving5-185

•If you used the Genuine NISSAN
Emergency Tire Sealant to repair a
minor tire puncture, it is recom-
mended that you visit a NISSAN
dealer to replace the TPMS sensor in
addition to repairing or replacing the
tire.
• NISSAN recommends using only
Genuine NISSAN Emergency Tire
Sealant provided with your vehicle.
Other tire sealants may damage the
valve stem seal which can cause the
tire to lose air pressure. To start your engine with a booster battery,
the instructions and precautions below
must be followed.
WARNING
• If done incorrectly, jump starting can
lead to a battery explosion, resulting
in severe injury or death. It could also
damage your vehicle.
• Explosive hydrogen gas is always
present in the vicinity of the battery.
Keep all sparks and flames away
from the battery.
• Do not allow battery fluid to come
into contact with eyes, skin, clothing
or painted surfaces. Battery fluid is a
corrosive sulfuric acid solution which
can cause severe burns. If the fluid
should come into contact with any-
thing, immediately flush the con-
tacted area with water.
• Keep battery out of the reach of
children.
• The booster battery must be rated at
12 volts. Use of an improperly rated
battery can damage your vehicle. •
Whenever working on or near a bat-
tery, always wear suitable eye pro-
tectors (for example, goggles or in-
dustrial safety spectacles) and
remove rings, metal bands, or any
other jewelry. Do not lean over the
battery when jump starting.
• Do not attempt to jump start a frozen
battery. It could explode and cause
serious injury.
• Your vehicle has an automatic engine
cooling fan. It could come on at any
time. Keep hands and other objects
away from it.
JUMP STARTING
In case of emergency6-17

WARNING
Always follow the instructions below.
Failure to do so could result in damage
to the charging system and cause per-
sonal injury.
1. If the booster battery is in another ve- hicle, position the two vehicles to bring
their batteries near each other.
Do not allow the two vehicles to touch.
2. Apply the parking brake. Move the shif t lever to P (Park). Switch off all unneces-
sary electrical systems (lights, heater, air
conditioner, etc.). 3. Place the ignition switch in the LOCK
position.
4. Connect the jumper cables in the se- quence illustrated (
OA,OB,OC,OD).
CAUTION
• Always connect positive (+) to posi-
tive (+) and negative (−) to body
ground (for example, strut mounting
bolt, engine lif t bracket, etc.) — not to
the battery. •
Make sure the jumper cables do not
touch moving parts in the engine
compartment and that the cable
clamps do not contact any other
metal.
5. Start the engine of the booster vehicle and let it run for a few minutes.
6. Keep the engine speed of the booster vehicle at about 2,000 rpm and start the
engine of the vehicle being jump
started.
CAUTION
Do not keep the starter motor engaged
for more than 10 seconds. If the engine
does not start right away, place the ig-
nition switch in the OFF position and
wait 3 to 4 seconds before trying again.
7. Af ter starting the engine, carefully dis- connect the negative cable and then the
positive cable.LCE2223
6-18In case of emergency

8 Do-it-yourself
Maintenance precautions.......................8-2
Engine compartment check locations ...........8-3
Engine cooling system ..........................8-5
Checking engine coolant level ................8-6
Changing engine coolant ....................8-6
Engine oil .......................................8-7
Checking engine oil level .....................8-7
Changing engine oil and oil filter ..............8-8
Continuously Variable Transmission (CVT)
fluid ............................................ 8-12
Brake fluid ...................................... 8-12
Windshield-washer fluid ........................8-13
Windshield-washer fluid reservoir ...........8-13
Battery......................................... 8-14
Jump starting ............................... 8-15
Variable voltage control system ................8-16
Drive belt ....................................... 8-16
Spark plugs .................................... 8-17
Replacing spark plugs ....................... 8-17
Air cleaner ..................................... 8-18In-cabin microfilter
.......................... 8-18
Windshield wiper blades ........................8-19
Cleaning .................................... 8-19
Replacing ................................... 8-19
Brakes ......................................... 8-20
Fuses .......................................... 8-21
Engine compartment ....................... 8-21
Passenger compartment ...................8-22
Battery replacement ........................... 8-23
NISSAN Intelligent Key® ......................8-24
Lights .......................................... 8-25
Headlights .................................. 8-25
Fog lights (if so equipped) ...................8-26
Exterior and interior lights ...................8-26
Wheels and tires ............................... 8-29
Tire pressure ................................ 8-29
Tire labeling ................................. 8-33
Types of tires ................................
8-36
Tir

e chains .................................. 8-37
Changing wheels and tires ..................8-39

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. •
Your vehicle is equipped with an au-
tomatic engine cooling fan. It may
come on at any time without
warning, even if the ignition switch is
in the OFF position and the engine is
not running. To avoid injury, always
disconnect the negative battery
cable before working 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 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.
It is recommended that you visit a
NISSAN dealer for this service be-
cause 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. Always conform to lo-
cal 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 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, see
“Owner's Manual/Service Manual order in-
formation” (P. 10-26).
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

2.0L 4 cylinder (KR20DDET engine
model)
1. Engine coolant reservoir
2. Drive belt location
3. Engine oil filler cap
4. Brake fluid reservoir
5. Battery
6. Fuse/Fusible link box
7. Air cleaner
8. Radiator cap
9. Engine oil dipstick
10. Windshield-washer fluid reservoir
NOTE:
Your vehicle may not be equipped with
an engine cover.
LDI3651
ENGINE COMPARTMENT CHECK
LOCATIONS
Do-it-yourself8-3

2.5L 4 cylinder (PR25DD engine model)
1. Engine coolant reservoir
2. Drive belt location
3. Engine oil filler cap
4. Engine oil dipstick
5. Brake fluid reservoir
6. Battery
7. Fuse/Fusible link box
8. Air cleaner
9. Radiator cap
10. Windshield-washer fluid reservoir
NOTE:
Your vehicle may not be equipped with
an engine cover.
LDI3652
8-4Do-it-yourself

Caution symbols for batteryWARNING
O1No smoking, No exposed flames, NoSparks Do not expose the battery to electrical sparks, flames or smoking. Hydrogen gas generated by the
battery is explosive. Explosive gases can cause blindness or injury.
O2Shield eyes Handle the battery cautiously. Always wear eye protection glasses to protect against explosion or
battery acid.
O3Keep away from childrenNever allow children to handle the battery. Keep the battery out of the reach of children.
O4Battery acidDo not allow battery fluid to contact your skin, eyes, fabrics, or painted surfaces. Sulfuric acid can
cause blindness or severe burns. Af ter touching a battery or battery cap, do not touch or rub your eyes. Thoroughly wash your hands. If the acid contacts your eyes, skin or clothing, immediately
flush with water for at least 15 minutes and seek medical attention. Battery fluid is acid. If the bat- tery fluid gets into your eyes or onto your skin, it could cause loss of your eyesight or burns.
O5Note operating instructions Before handling the battery, read this instruction carefully to ensure correct and safe handling.
O6Explosive gas Hydrogen gas generated by battery fluid is explosive. Explosive gases can cause blindness or injury.
BATTERY
8-14Do-it-yourself

• If the battery is labeled “do not open” it ismaintenance free and battery fluid
should not be checked. It is recom-
mended that you visit a NISSAN dealer or
a qualified specialist workshop to con-
firm the battery’s performance.
• Keep the battery surface clean and dry. Clean the battery with a solution of bak-
ing soda and water.
• Make certain the terminal connections are clean and securely tightened.
• If the vehicle is not to be used for 30 days or longer, disconnect the negative (-) bat-
tery terminal cable to prevent discharge.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
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. 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.
WARNING
• Do not expose the battery to flames,
an electrical spark or a cigarette. Hy-
drogen gas generated by the battery
is explosive. Explosive gases can
cause blindness or injury. Do not al-
low battery fluid to contact your skin,
eyes, fabrics or painted surfaces. Sul-
furic acid can cause blindness or in-
jury. Af ter touching a battery or bat-
tery cap, do not touch or rub your
eyes. Thoroughly wash your hands. If
the acid contacts your eyes, skin or
clothing, immediately flush with wa-
ter for at least 15 minutes and seek
medical attention.
• When working on or near a battery,
always wear suitable eye protection
and remove all jewelry.
• Battery posts, terminals and related
accessories contain lead and lead
compounds. Wash hands af ter
handling.
• Keep battery out of the reach of
children.
• Do not tip the battery.
NOTE:
Do not try to open the top of the battery.
This battery is not equipped with remov-
able vent caps.
JUMP STARTING
If jump starting is necessary, see “Jump
starting” (P. 6-17). If the engine does not
start by jump starting, the battery may
have to be replaced. It is recommended
that you visit a NISSAN dealer for this
service.
LDI3302
Do-it-yourself8-15

CAUTION
• Do not ground accessories directly to
the battery terminal. Doing so will
bypass the variable voltage control
system and the vehicle battery may
not charge completely.
• Use electrical accessories with the
engine running to avoid discharging
the vehicle battery. Your vehicle is equipped with a variable
voltage control system. This system mea-
sures the amount of electrical discharge
from the battery and controls voltage gen-
erated by the generator.
The current sensor is located near the bat-
tery along the negative battery cable. If you
add electrical accessories to your vehicle,
be sure to ground them to a suitable body
ground such as the frame or engine block
area.
1. Automatic tensioner pulley
2. Generator pulley
3. Water pump pulley
4. Air conditioner compressor pulley
5. Crankshaf t pulley
WARNING
Be sure the ignition switch is in the OFF
or LOCK position before servicing drive
belt. The engine could rotate
unexpectedly.
LDI3272WDI0638
VARIABLE VOLTAGE CONTROL
SYSTEM DRIVE BELT
8-16Do-it-yourself