2012 NISSAN ALTIMA key battery

NOTE:
The Intelligent Key port does not charge
the Intelligent Key battery. If you see the
low battery indicator, replace the battery as
soon as possible. See “Battery replace-
ment” in the “Maintenance and do-it-
yourself” section.

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 inserting it into the key
hole or use the remote keyless entry function on
the Intelligent Key.
ANTI-FREEZE
In the winter when it is anticipated that the tem-
perature will drop below 32°F (0°C) , check the
anti-freeze to assure proper winter protection.
For details, see “Engine cooling system” in the
“Maintenance and do-it-yourself” section of this
manual.
BATTERY
If the battery is not fully charged during extremely
cold weather conditions, the battery fluid may
freeze and damage the battery. To maintain maxi-
mum efficiency, the battery should be checked
regularly. For details, see “Battery” in the “Main-
tenance and do-it-yourself” section of this
manual.
DRAINING OF COOLANT WATER
If the vehicle is to be left outside without anti-
freeze, drain the cooling system, including the
engine block. Refill before operating the vehicle.
For details, see “Changing engine coolant” in the
“Maintenance and do-it-yourself” section of this
manual.
TIRE EQUIPMENT
1. SUMMER tires have a tread designed toprovide superior performance on dry pave-
ment. However, the performance of these
tires will be substantially reduced in snowy
and icy conditions. If you operate your ve-
hicle on snowy or icy roads, NISSAN recom-
mends the use of MUD & SNOW or ALL
SEASON TIRES on all four wheels. Please
consult a NISSAN dealer for the tire type,
size, speed rating and availability informa-
tion.
2. For additional traction on icy roads, studded tires may be used. However, some U.S.
states and Canadian provinces prohibit their
use. Check local, state and provincial laws
before installing 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 details see
“Tire chains” in the “Maintenance and do-it-
yourself” section of this manual.
SPECIAL WINTER EQUIPMENT
It is recommended that the following items be
carried in the vehicle during winter:
● A scraper and stiff-bristled brush to remove
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 snowdrifts.
● Extra washer fluid to refill the windshield-
washer fluid reservoir.
DRIVING ON SNOW OR ICE

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