key battery NISSAN ALTIMA 2012 User Guide

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