2012 INFINITI FX key battery

5 Starting and driving
Precautions when starting and driving ................. 5-3Exhaust gas (carbon monoxide) ....................... 5-3
Three-way catalyst........................................... 5-3
Tire Pressure Monitoring System (TPMS).......... 5-4Avoiding collision and rollover......................... 5-6On-pavement and off-road
driving precautions.......................................... 5-7Off-road recovery............................................. 5-7
Rapid air pressure loss ................................... 5-7
Drinking alcohol/drugs and driving ................. 5-8
Driving safety precautions ............................... 5-8
Push-button ignition switch ............................... 5-10 Operating range for engine start function ...... 5-11
Push-button ignition switch operation ........... 5-11
Push-button ignition switch positions ............ 5-12 Emergency engine shut off ............................ 5-12
Intelligent Key battery discharge ................... 5-13
Before starting the engine ................................. 5-13
Starting the engine ............................................ 5-14
Driving the vehicle ............................................. 5-15
Automatic transmission ................................. 5-15
Parking brake .................................................... 5-20
Lane Departure Warning (LDW) system/Lane
Departure Prevention (LDP) system
(if so equipped) ................................................. 5-21 Lane Departure Warning (LDW) system......... 5-22
Lane Departure Prevention (LDP) system ...... 5-24
Lane camera unit maintenance .................... 5-29
Cruise control.................................................... 5-29 Precautions on cruise control....................... 5-29
Cruise control operations ............................. 5-30
Intelligent Cruise Control (ICC) system
(FULL SPEED RANGE) (if so equipped) ................ 5-31 Selecting the vehicle-to-vehicle distance
control mode ............................................... 5-33
Vehicle-to-vehicle distance control mode...... 5-33
Precautions on vehicle-to-vehicle distance
control mode ............................................... 5-33
Vehicle-to-vehicle distance control
mode operation ........................................... 5-35
Conventional (fixed speed) cruise
control mode ............................................... 5-50
Preview function (for Intelligent Cruise
Control system equipped models) ................ 5-54
Distance Control Assist (DCA) system (if
so equipped)..................................................... 5-54 Precautions on distance control
assist system............................................... 5-55
Distance control assist operation ................. 5-56

SSD0436
OPERATING RANGE FOR ENGINE
START FUNCTION
The Intelligent Key can only be used for
starting the engine when the Intelligent
Key is within the specified operating range
*1.
When the Intelligent Key battery is almost
discharged or strong radio waves are
present near the operating location, the
Intelligent Key system’s operating range
becomes narrower and may not function
properly.
If the Intelligent Key is within the operating
range, it is possible for anyone, even someone who does not carry the Intelligent
Key, to push the ignition switch to start the
engine.
.
The cargo area is not included in the
operating range but the Intelligent Key
may function.
. If the Intelligent Key is placed on the
instrument panel, inside the glove box
or door pocket, the Intelligent Key may
not function.
. If the Intelligent Key is placed near the
door or window outside the vehicle, the
Intelligent Key may function.
SSD1021
PUSH-BUTTON IGNITION SWITCH
OPERATION
When the ignition switch is pushed without
depressing the brake pedal, the ignition
switch position will change as follows:
. Push center once to change to ACC.
. Push center two times to change to ON.
. Push center three times to change to
OFF. (No position illuminates.)
. Push center four times to return to ACC.
. Open or close any door to return to
LOCK during the OFF position.
The ignition lock is designed so that the
ignition switch position cannot be switched
Starting and driving5-11

5-12Starting and driving
to LOCK until the selector lever is moved to
the P (Park) position.
When the ignition switch cannot be pushed
toward the LOCK position, proceed as
follows:
1. Move the selector lever into the P (Park)position.
2. Push the ignition switch to the OFF position. The ignition switch position
indicator will not illuminate.
3. Open the door. The ignition switch will change to the LOCK position.
The selector lever can be moved from the P
(Park) position if the ignition switch is in
the ON position and the brake pedal is
depressed.
If the battery of the vehicle is discharged,
the push-button ignition switch cannot be
turned from the LOCK position.
Some indicators and warnings for opera-
tion are displayed on the dot matrix liquid
crystal display between the speedometer
and tachometer. (See “Dot matrix liquid
crystal display” (P.2-21).)PUSH-BUTTON IGNITION SWITCH
POSITIONS
LOCK (Normal parking position)
The ignition switch can only be locked in
this position.
The ignition switch will be unlocked when
it is pushed to the ACC position while
carrying the Intelligent Key or with the
Intelligent Key inserted in the port.
ACC (Accessories)
This position activates electrical acces-
sories such as the radio, when the engine
is not running.
ON (Normal operating position)
This position turns on the ignition system
and electrical accessories.
OFF
The engine can be turned off in this
position.
The ignition lock is designed so that the
ignition switch cannot be switched to the
LOCK position until the selector lever is
moved to the P (Park) position.
CAUTION
Do not leave the vehicle with the push-
button ignition switch in ACC or ON posi-
tions when the engine is not running for an
extended period. This can discharge the
battery.
EMERGENCY ENGINE SHUT OFF
To shut off the engine in an emergency
situation while driving perform the follow-
ing procedure:
.Rapidly push the push-button ignition
switch 3 consecutive times in less than
1.5 seconds, or
. Push and hold the push-button ignition
switch for more than 2 seconds.

SSD0731
INTELLIGENT KEY BATTERY DIS-
CHARGE
If the battery of the Intelligent Key is
almost discharged, the guide light
*Aof
the Intelligent Key port blinks and the
indicator appears on the dot matrix liquid
crystal display. (See “Dot matrix liquid
crystal display” (P.2-21).)
In this case, inserting the Intelligent Key
into the port
*1allows you to start the
engine. Make sure that the key ring side
faces backward as illustrated. Insert the
Intelligent Key in the port until it is latched
and secured. To remove the Intelligent Key from the port,
push the ignition switch to the OFF position
and pull the Intelligent Key out of the port.
NOTE:
The Intelligent Key port does not charge
the Intelligent Key battery. If you see the
low battery indicator in the dot matrix
liquid crystal display, replace the battery
as soon as possible. (See
“Intelligent Key
battery replacement” (P.8-27).)
CAUTION
.Never place anything except the Intelli-
gent Key in the Intelligent Key port.
Doing so may cause damage to the
equipment.
. Make sure the Intelligent Key is in the
correct direction when inserting it to the
Intelligent Key port. The engine may not
start if it is in the incorrect direction.
. Remove the Intelligent Key from the
Intelligent Key port after the ignition
switch is pushed to the OFF position.
.Make sure the area around the vehicle
is clear.
. Check fluid levels such as engine oil,
coolant, brake fluid and window
washer fluid as frequently as possible,
or at least whenever you refuel.
. Check that all windows and lights are
clean.
. Visually inspect tires for their appear-
ance and condition. Also check tires for
proper inflation.
. Lock all doors.
. Position seat and adjust head re-
straints.
. Adjust inside and outside mirrors.
. Fasten seat belts and ask all passen-
gers to do likewise.
. Check the operation of warning lights
when the ignition switch is pushed to
the ON position. (See “Warning/indica-
tor lights and audible reminders” (P.2-
12).)
Starting and driving5-13
BEFORE STARTING THE ENGINE

The Rear Active Steer system is an electro-
nically controlled four-wheel steering sys-
tem.
The angle of the rear wheels are adjusted
by the Rear Active Steer system, depending
on the vehicle speed and steering angle.
The rear wheels are designed to turn
momentarily in the opposite direction and
then change to the same direction as the
front wheels.
At low speeds, the rear wheels will not turn
and the system functions as a two-wheel
steering system.
If a malfunction occurs in the system, the
Rear Active Steer function will stop but the
ordinary two-wheel steering system will
operate normally. The“RAS”warning light
will illuminate. If the light illuminates while
driving, contact an INFINITI retailer for
repair.
WARNING
The Rear Active Steer system, although a
sophisticated device, cannot prevent acci-
dents resulting from careless or dangerous
driving techniques. Ultimately the responsi-
bility for safety of self and others rests in
the hands of the driver. Therefore only through attentive and careful driving meth-
ods can the Rear Active Steer system be
fully appreciated and safety assured.
FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing, apply
deicer through the key hole. If the lock
becomes frozen, heat the key before
inserting it into the key hole or use the
Intelligent Key system.
ANTIFREEZE
In the winter when it is anticipated that the
outside temperature will drop below 328F
(08C), check antifreeze to assure proper
winter protection. For additional informa-
tion, see “Engine cooling system” (P.8-9).
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.8-17).
DRAINING OF COOLANT WATER
If the vehicle is to be left outside without
antifreeze, drain the cooling system, in-
cluding the engine block. Refill before
operating the vehicle. For details, see
“Engine cooling system” (P.8-9).
Starting and driving5-85
REAR ACTIVE STEER SYSTEM (if so
equipped) COLD WEATHER DRIVING

8 Maintenance and do-it-yourself
Maintenance requirement .................................... 8-2Scheduled maintenance .................................. 8-2
General maintenance....................................... 8-2
Where to go for service ................................... 8-2
General maintenance ........................................... 8-3 Explanation of maintenance items ................... 8-3
Maintenance precautions ..................................... 8-5
Engine compartment check locations ................... 8-7 VQ35HR engine ............................................... 8-7
VK50VE engine ................................................ 8-8
Engine cooling system ......................................... 8-9 Checking engine coolant level ....................... 8-10
Changing engine coolant ............................... 8-11
Engine oil .......................................................... 8-11 Checking engine oil level............................... 8-12Changing engine oil and filter ....................... 8-12
Automatic transmission fluid ............................. 8-15
Power steering fluid........................................... 8-15
Brake fluid......................................................... 8-16 Brake fluid .................................................... 8-16
Window washer fluid ......................................... 8-16
Battery .............................................................. 8-17 Jump starting ................................................ 8-19
Variable voltage control system ......................... 8-19 Drive Belts ........................................................ 8-19
Spark plugs ...................................................... 8-20
Replacing spark plugs ................................. 8-21
Air cleaner ........................................................ 8-21
Windshield wiper blades ................................... 8-22 Cleaning ...................................................... 8-22
Replacing..................................................... 8-23
Rear window wiper blades ................................ 8-24
Brakes .............................................................. 8-24 Self-adjusting brakes ................................... 8-24
Brake pad wear warning .............................. 8-24
Fuses ................................................................ 8-25 Engine compartment .................................... 8-25
Passenger compartment............................... 8-26
Intelligent Key battery replacement ................... 8-27
Lights................................................................ 8-29
Headlights ................................................... 8-30
Exterior and interior lights ........................... 8-30
Wheels and tires ............................................... 8-32 Tire pressure ............................................... 8-32
Tire labeling ................................................ 8-36
Types of tires............................................... 8-38
Tire chains ................................................... 8-39
Changing wheels and tires........................... 8-39

if gasoline fumes are evident, check for the
cause and have it corrected immediately.
Power steering fluid level* and lines:
Check the level when the fluid is cold,
with the engine off. Check the lines for
proper attachment, leaks, cracks, etc.
Radiator and hoses:Check the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks,
deformation, rot or loose connections.
Underbody: The 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
substances, otherwise rust will form on
the floor pan, frame, fuel lines and around
the exhaust system. At the end of winter,
the underbody should be thoroughly
flushed with plain water, being careful to
clean those areas where mud and dirt may
accumulate. For additional information,
see “Cleaning exterior” (P.7-2).
Windshield washer fluid*: Check that there
is adequate fluid in the reservoir. 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
following 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 vehicle from
moving. Move the selector lever to P
(Park).
. Be sure the ignition switch is in the OFF
or LOCK position when performing any
parts replacement or repairs.
. Never connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position.
. Never leave the engine or automatic
transmission related component har-
nesses disconnected while the ignition
switch is in the ON position.
. If you must work with the engine
running, 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 whenever
you work on your vehicle.
. If you must run the engine in an
enclosed 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
necessary to work under the vehicle,
support it with safety stands.
. Keep smoking materials, flame and
sparks away from fuel tank and the
battery.
. Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the
ignition key 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.
. On gasoline engine models, the fuel
filter or fuel lines should be serviced by
an INFINITI retailer because the fuel lines
Maintenance and do-it-yourself8-5
MAINTENANCE PRECAUTIONS

case, remove the extended storage switch
and replace it with a new fuse of the same
rating.
How to remove the extended storage
switch:
1. To remove the extended storage switch,be sure the ignition switch is in the OFF
or LOCK position.
2. Be sure the headlight switch is in the OFF position.
3. Remove the fuse box cover.
4. Pinch the locking tabs
*1found on
each side of the storage switch.
5. Pull the storage switch straight out from the fuse box
*2.
CAUTION
Be careful not to allow children to swallow
the battery and removed parts.
SDI2294
Replace the battery as follows:
1. Release the lock knob at the back of theIntelligent Key and remove the mechan-
ical key.
2. Insert a flat-blade screwdriver
*Awrapped with a cloth into the slit*Bof the corner and twist it to separate
Maintenance and do-it-yourself8-27
INTELLIGENT KEY BATTERY REPLACEMENT