2002 NISSAN ALTIMA battery replacement

3 Pre-driving checks and adjustments
Keys .......................................................................3-2
Nissan vehicle immobilizer system
(NVIS) keys .......................................................3-2
Doors ......................................................................3-2
Locking with key ................................................3-3
Locking with inside lock knob............................3-3
Locking with power door lock switch.................3-4
Child safety rear door lock ................................3-4
Remote keyless entry system (if so equipped)......3-5
How to use remote keyless entry
system ...............................................................3-5
Battery replacement ..........................................3-8
Hood .......................................................................3-9
Trunk lid................................................................3-10
Opener operation ............................................3-10Key operation ..................................................3-11
Interior trunk lid release...................................3-11
Fuel filler lid ..........................................................3-12
Opener operation ............................................3-12
Fuel filler cap ...................................................3-12
Steering wheel .....................................................3-13
Tilt operation ....................................................3-13
Telescopic operation .......................................3-14
Sun visors.............................................................3-14
Vanity mirrors ..................................................3-14
Mirrors ..................................................................3-15
Inside mirror.....................................................3-15
Automatic anti-glare inside mirror
(if so equipped)................................................3-15
Outside mirror remote control .........................3-16
ZX

BATTERY REPLACEMENT
Replace the battery in the keyfob as follows:
1. Open the lid using a coin.
2. Replace the battery with a new one.Recommended battery: Sanyo CR2025
or equivalent.
3. Close the lid securely.
4. Press the
button, then thebut-
ton two or three times to check thekeyfob operation.
Each time the
button is pressed, the
hazard lights flash once.
If the battery is removed for any reason
other than replacement, perform step 4.
cAn improperly disposed battery can
hurt the environment. Always confirm
local regulations for battery disposal.
cThe keyfob is water-resistant; how-
ever, if it does get wet, immediately
wipe completely dry.
cThe operational range of the keyfob
extends to approximately 33 ft (10 m)
from the vehicle. This range may vary
with conditions.
FCC Notice:
Changes or modifications not expressly
approved by the manufacturer for com-
pliance could void the user's authority to
operate the equipment.
This device complies with part 15 of the
FCC Rules and RSS-210 of Industry
Canada.
Operation is subject to the following two
conditions: (1) This device may not
LPD0081
3-8Pre-driving checks and adjustments
ZX

8 Maintenance and do-it-yourself
Maintenance requirements .....................................8-2
General maintenance .............................................8-3
Explanation of general maintenance
items ..................................................................8-3
Maintenance precautions .......................................8-5
Engine compartment check locations QR
engine .....................................................................8-7
Engine compartment check locations VQ
engine .....................................................................8-8
Engine cooling system ...........................................8-9
Checking engine coolant level ..........................8-9
Changing engine coolant ................................8-10
Engine oil .............................................................8-10
Checking engine oil level ................................8-10
Changing engine oil ........................................8-11
Changing engine oil filter.................................8-13
Automatic transmission fluid ................................8-14
Temperature conditions for checking ..............8-14
Power steering fluid..............................................8-15
Brake and clutch fluid...........................................8-16
Brake fluid........................................................8-16
Clutch fluid .......................................................8-16Window washer fluid ............................................8-17
Battery ..................................................................8-17
Jump starting ...................................................8-18
Drive belts ............................................................8-19
Spark plugs ..........................................................8-20
Replacing spark plugs (QR25DE) ...................8-20
Replacing spark plugs (VQ35DE) ...................8-20
Air cleaner ............................................................8-21
Cabin air filter (if so equipped) ........................8-21
Windshield wiper blades ......................................8-24
Cleaning ..........................................................8-24
Replacing .........................................................8-24
Parking brake and brake pedal ............................8-25
Checking parking brake...................................8-25
Checking brake pedal .....................................8-25
Brake booster ..................................................8-26
Clutch pedal .........................................................8-26
Checking clutch pedal .....................................8-26
Fuses ....................................................................8-27
Engine compartment .......................................8-27
Passenger compartment .................................8-28
Keyfob battery replacement .................................8-29
ZX

checks of the battery fluid level.
Exhaust systemMake sure there are no
loose supports, cracks or holes. If the sound
of the exhaust seems unusual or there is a
smell of exhaust fumes, immediately have
the exhaust system inspected by an autho-
rized NISSAN dealer. See the carbon mon-
oxide warning in the ``Starting and driving''
section of this manual.
UnderbodyThe underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances from the underbody, otherwise rust
may form on the floor pan, frame, fuel lines
and exhaust system. At the end of winter,
the underbody should be thoroughly flushed
with plain water, in those areas where mud
and dirt may have accumulated. See the
``Appearance and care'' section of this
manual.
Fluid leaksCheck under the vehicle for
fuel, oil, water or other fluid leaks after the
vehicle has been parked for a while. Water
dripping from the air conditioner after use is
normal. If you should notice any leaks or if
gasoline fumes are evident, check for the
cause and have it corrected immediately.When performing any inspection or mainte-
nance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
cPark the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For manual trans-
mission models, move the shift lever
to (N) Neutral. For an automatic
transmission models, move the shift
selector lever to P (Park).
cBe sure the ignition key is in the OFF
or LOCK position when performing
any parts replacement or repairs.
cYour vehicle is equipped with an
automatic engine cooling fan. It may
come on at any time without warn-
ing, even if the ignition key is in the
OFF position and the engine is not
running. To avoid injury, always dis-
connect the negative battery cable
before working near the fan.c
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.
cIt is advisable to secure or remove
any loose clothing and remove any
jewelry, such as rings, watches, etc.
before working on your vehicle.
cAlways wear eye protection when-
ever you work on your vehicle.
cIf you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
cNever get under the vehicle while it
is supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
c
Keep smoking materials, flame and
sparks away from the fuel tank and
battery.
cOn gasoline engine models with the
multiport fuel injection (MFI) system,
the fuel filter or fuel lines should be
serviced by an authorized NISSAN
MAINTENANCE
PRECAUTIONS
Maintenance and do-it-yourself8-5
ZX

Platinum-tipped spark plugs
It is not necessary to replace platinum-
tipped spark plugs as frequently as conven-
tional type spark plugs because they last
much longer. Follow the maintenance
schedule, but do not reuse the spark plugs
by cleaning or regapping.
cAlways replace spark plugs with rec-
ommended or equivalent ones.
WARNING
Be sure the engine and ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to
remove the spark plugs. An incorrect
socket can damage the spark plugs.
REPLACING SPARK PLUGS
(QR25DE)
1. Disconnect the negative battery cable.
2. Remove the coil pack bolt.
3. Remove the coil pack/spark plug boot
from the spark plug.
4. Remove the spark plugs with a spark
plug socket.
The plug socket has a rubber seal that
holds the spark plug so it does not fall
when it is pulled out. Make sure each
spark plug is snugly fitted into the spark
plug socket.5. Fit the new plugs, one at a time, into the
spark plug socket and install them.Use
only the specified spark plugs.Turn
each plug several full turns by hand, then
tighten with the spark plug socket to the
correct torque. Do not overtighten.
Spark plug tightening torque:
14 to 22 ft-lb
(20 to 29 Nzm)
6. Install the coil pack/spark plug boot on
the spark plug by pushing it on until you
feel a snap.
7. Install the coil pack bolt.
Coil pack tightening torque:
48-65 in-lb
(5.4 - 7.3 Nzm)
8. Connect the negative battery cable.
REPLACING SPARK PLUGS
(VQ35DE)
If replacement is required, see your NIS-
SAN dealer for servicing.
WDI0005
SPARK PLUGS
8-20Maintenance and do-it-yourself
ZX

Replace the battery in the keyfob as follows:
1. Open the lid using a coin.
2. Replace the battery with a new one.
Recommended battery: Sanyo CR2025
or equivalent.3. Close the lid securely.
4. Press the
button, then thebutton
two or three times to check the keyfob
operation.
Each time the
button is pressed, thehazard lights flash once.
If the battery is removed for any reason
other than replacement, perform step 4.
cAn improperly disposed battery can
hurt the environment. Always confirm
local regulations for battery disposal.
cThe keyfob is water-resistant; how-
ever, if it does get wet, immediately
wipe completely dry.
cThe operational range of the keyfob
extends to approximately 33 ft (10 m)
from the vehicle. This range may vary
with conditions.
FCC Notice:
Changes or modifications not expressly
approved by the manufacturer for com-
pliance could void the user's authority to
operate the equipment.
This device complies with part 15 of the
FCC Rules and RSS-210 of Industry
Canada.
LPD0081
KEYFOB BATTERY
REPLACEMENT
Maintenance and do-it-yourself8-29
ZX

FRONT
PARK/TURN/SIDEMARKER
LIGHT
Bulb replacement requires the removal of
the headlight assembly. If replacement is
required, see your NISSAN dealer.
FOG LIGHTS
Replacing the fog light bulb
1. Disconnect the negative (-) battery cable.
2. Remove the two splash shield screws
(see illustration).
3. Position the splash shield aside to allow
access to the fog light bulb.
4. Disconnect the fog light electrical con-
nector.
5. Rotate the fog light bulb counterclock-
wise and pull it out of the fog light assem-
bly.
6. Follow the instructions in reverse order to
install a new bulb.
LDI0114LDI0115
Maintenance and do-it-yourself8-31
ZX

10 Index
A
Air bag (See supplemental restraint
system) ........................................................ 1-8
Air bag warning light ................. 1-14, 1-19, 2-9
Air cleaner housing filter ............................ 8-21
Air conditioner
Air conditioner operation ........................ 4-5
Air conditioner service .......................... 4-11
Air conditioner specification label ......... 9-12
Air conditioner system refrigerant and
lubrication recommendations.................. 9-7
Heater and air conditioner controls ........ 4-3
Servicing air conditioner ....................... 4-11
Air flow charts .............................................. 4-6
Alarm system (See vehicle security
system) ...................................................... 2-13
Anchor point locations ............................... 1-37
Antenna...................................................... 4-29
Anti-lock brake system (ABS).................... 5-19
Anti-lock brake warning light ..................... 2-10
Armrests....................................................... 1-7
Audio system
FM-AM radio with compact disc (CD)
changer ....................................... 4-16, 4-21
Autolamp switch......................................... 2-20
Automatic
Automatic power window switch .......... 2-32Automatic transmission fluid (ATF) ...... 8-14
Driving with automatic transmission ....... 5-4
B
Battery........................................................ 8-17
Battery
Charge warning light .............................. 2-9
Battery replacement (See remote keyless
entry system) ............................................... 3-8
Before starting the engine ........................... 5-6
Belts (See drive belts) ........................ 8-19, 9-8
Brake
Anti-lock brake system (ABS) .............. 5-19
Brake booster ....................................... 8-26
Brake fluid............................................. 8-16
Brake pedal .......................................... 8-25
Brake system .............................. 2-12, 5-18
Brake warning light ............................... 2-10
Brake wear indicators ................. 2-12, 8-26
Parking brake check ............................. 8-25
Parking brake operation ....................... 5-13
Self-adjusting brakes ............................ 8-26
Break-in schedule ...................................... 5-15
Bulb check/instrument panel ....................... 2-8
Bulb replacement ....................................... 8-32C
Capacities and recommended fuel/
lubricants...................................................... 9-2
Car phone or CB radio .............................. 4-29
Cargo (See vehicle loading information) ... 9-13
Check engine indicator light
(See malfunction indicator light) ................ 2-11
Child restraint with top tether strap ........... 1-37
Child restraints ........................ 1-23, 1-28, 1-35
Child safety rear door lock .......................... 3-4
Cleaning exterior and interior ...................... 7-2
Clutch
Clutch fluid ............................................ 8-16
Clutch pedal.......................................... 8-26
Cold weather driving .................................. 5-21
Controls
Heater and air conditioner controls ........ 4-3
Coolant
Capacities and recommended fuel/
lubricants ................................................ 9-2
Changing engine coolant...................... 8-10
Checking engine coolant level ............... 8-9
Engine coolant temperature gauge ........ 2-6
Corrosion protection .................................... 7-5
Cruise control............................................. 5-14
Cup holders ............................................... 2-27
ZX