2012 NISSAN ALTIMA battery replacement

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 communicating with
the vehicle as it receives radio waves. The Intel-
ligent Key transmits weak radio waves. Environ-
mental conditions may interfere with the opera-
tion of the Intelligent 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 broadcasting
station.
● When in possession of wireless equipment,
such as a cellular telephone, transceiver,
and CB radio.
● When the Intelligent Key is in contact with or
covered by metallic materials.
● When any type of radio wave remote control
is used nearby.
● When the Intelligent Key is placed near an
electric appliance such as a personal com-
puter. ●
When the vehicle is parked near a parking
meter.
In such cases, correct the operating conditions
before using the Intelligent Key function or use
the mechanical key.
Although the life of the battery varies depending
on the operating conditions, the battery’s life is
approximately 2 years. If the battery is dis-
charged, replace it with a new one.
When the Intelligent Key battery is almost dis-
charged, insert the Intelligent Key into the Intelli-
gent Key port to start the engine. Replace the
discharged battery with a new one as soon as
possible. For more details, see “Push-button ig-
nition switch” in the “Starting and driving” sec-
tion.
Since the Intelligent Key is continuously receiving
radio waves, if the key is left near equipment
which transmits strong radio waves, such as sig-
nals from a TV and personal computer, the bat-
tery life may become shorter.
For information regarding replacement of a bat-
tery, see “Battery replacement” in the “Mainte-
nance and do-it-yourself” section.
As many as 4 Intelligent Keys can be registered
and used with one vehicle. For information about
the purchase and use of additional Intelligent
Keys, contact a NISSAN dealer.

8 Maintenance and do-it-yourself
Maintenance requirements..........................8-2
General maintenance ..............................8-2
Explanation of general maintenance items .........8-2
Maintenance precautions ...........................8-5
Engine compartment check locations ................8-6
Engine cooling system .............................8-8
Checking engine coolant level ...................8-9
Changing engine coolant ........................8-9
Engine oil ........................................ 8-10
Checking engine oil level .......................8-10
Changing engine oil ........................... 8-11
Changing engine oil filter .......................8-12
Continuously Variable Transmission (CVT) fluid
(if so equipped) .................................. 8-13
Power steering fluid ............................... 8-14
Brake and clutch (if so equipped) fluid ..............8-14
Brake fluid .................................... 8-15
Clutch fluid (if so equipped) ....................8-15
Windshield-washer fluid ........................... 8-15
Windshield-washer fluid reservoir ...............8-15
Battery .......................................... 8-16
Jump starting ................................. 8-17
Variable voltage control system .....................8-18Drive belt
........................................ 8-18
Spark plugs ...................................... 8-19
Replacing spark plugs ......................... 8-19
Air cleaner ....................................... 8-20
In-cabin microfilter ............................. 8-21
Windshield wiper blades .......................... 8-21
Cleaning ..................................... 8-21
Replacing .................................... 8-22
Brakes .......................................... 8-23
Self-adjusting brakes .......................... 8-23
Brake pad wear indicators ......................8-23
Fuses ........................................... 8-23
Engine compartment ........................... 8-24
Passenger compartment .......................8-25
Battery replacement .............................. 8-27
NISSAN
Intelligent Key™ ....................... 8-27
Lights ........................................... 8-29
Headlights .................................... 8-29
Front park/turn/sidemarker light .................8-29
Exterior and interior lights .......................8-30
Upper tether anchor/key cylinder covers ............8-36
Removing covers from rear parcel shelf ..........8-36
Installing covers to rear parcel shelf ..............8-37

Replace the battery in the Intelligent Key as fol-
lows:1. Remove the mechanical key from the Intelli- gent Key.
2. Insert a small screwdriver
Ainto the slitB
of the corner and twist it to separate the
upper part from the lower part. Use a cloth to
protect the casing.
3. Replace the battery with a new one. Recommended battery: CR2032 or equiva-
lent.
●Do not touch the internal circuit and elec-
tric 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 capacity.
● Make sure that the + side faces the bot-
tom of the case. 4. Close the lid securely as illustrated
CD.
5. Operate the buttons to check the operation.
See a NISSAN dealer if you need assistance for
replacement.
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 interference re-
ceived, 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 authority to operate the
equipment.
For Canada:
This device complies with RSS-210 of In-
dustry Canada. Operation is subject to the
following two conditions: (1) this device
may not cause interference, and (2) this
device must accept any interference, in-
cluding interference that may cause unde-
sired operation of the device.

Continuously Variable Transmission
(CVT) fluid..................8-13
Engine coolant .................8-8
Engine oil ...................8-10
Power steering fluid .............8-14
F.M.V.S.S. certification label ...........9-10
Fog light switch .................2-34
Front air bag system
(See supplemental restraint system) ......1-50
Front seats .....................1-2
Fuel Capacities and recommended
fuel/lubricants .................9-2
Fuel economy ................5-22
Fuel-filler door and cap ...........3-25
Fuel-filler door lock opener lever ......3-25
Fuel gauge ...................2-6
Fuel octane rating ...............9-4
Fuel recommendation .............9-3
Loose fuel cap warning ........2-25, 3-25
Fuses .......................8-23
Fusible links ...................8-25
G
Garage door opener, HomeLink Universal
Transceiver ....................2-51
Gascap .....................3-25
Gauge Engine coolant temperature gauge .....2-5
Fuel gauge ...................2-6
Odometer ...................2-4
Speedometer .................2-4
Tachometer ..................2-5
Trip odometer .................2-4 General maintenance
...............8-2
Glove box .....................2-41
Glove box lock ..................2-41
Grocery hooks ..................2-42
H
Hands-free phone system, Bluetooth . . . .4-92,
4-106
Hazard warning flasher switch .........2-34
Headlight
and turn signal switch ........2-29
Headlight control switch ............2-31
Headlights ....................8-29
Heated seats ...................2-35
Heater Heater and air conditioner
controls ................4-19, 4-26
Heater operation ...........4-20, 4-27
HomeLink Universal Transceiver ........2-51
Hood release ...................3-23
Horn .......................2-35
I
Ignition Switch Push-Button Ignition Switch .........5-7
Immobilizer system .........2-27, 3-3, 5-10
Important vehicle information label .......9-10
In-cabin microfilter ................8-21
Increasing fuel economy .............5-22
Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders) ....................2-10
Inside automatic anti-glare mirror ........3-30Inside mirror
...................3-29
Instrument brightness control ..........2-33
Instrument panel ...............0-8, 2-2
Instrument panel dimmer switch ........2-33
Intelligent Key system Key operating range ..........3-8, 3-18
Key operation .................3-9
Mechanical key ................3-3
Remote keyless entry operation . . .3-12, 3-18
Troubleshooting guide ........3-16, 3-22
Warning signals ............3-16, 3-22
Interior light ....................2-48
Interior trunk lid release .............3-24
iPod Player................4-72, 4-74
ISOFIX child restraints .............1-24
J
Jump starting .................. .6-8
K
K

eyfob battery replacement ...........8-27
Keyless entry With Intelligent Key system
(See Intelligent Key system) .....3-12, 3-18
Keys, For Intelligent Key system .........3-2
L
Labels Air conditioner specification label .....9-12
C.M.V.S.S. certification label ........9-10
10-3