brake light INFINITI FX 2010 Service Manual

FCW system operation
The FCW system will function at speeds of
approximately 10 MPH (15 km/h) and above,
when the system turns on.
The FCW system has an automatic setting mode
and a manual setting mode to turn the system
on. The setting mode can be changed. In the
automatic setting mode, the FCW system is
automatically turned on when the ignition
switch is pushed to the ON position. When the
FCW system is on, the FCW/LDW ON indicator
light
1on the FCW/LDW switch illuminates. To
cancel the FCW system, push the FCW/LDW
switch. The FCW/LDW ON indicator light will turn off. To turn on the system, push the
FCW/LDW switch again.
When the FCW switch is pushed, the LDW
system will also turn on or off simultaneously.
See “LANE DEPARTURE WARNING (LDW) SYS-
TEM” earlier in this section.
In the manual setting mode, you need to push
the FCW/LDW switch to turn on the system after
the ignition switch is pushed to the ON posi-
tion.
The setting mode can be changed using the
FCW/LDW switch. To change the setting mode,
push and hold the FCW/LDW switch for more
than 4 seconds when the FCW/LDW ON indica-
tor is off. When the mode is changed, a chime
sounds and the lane departure warning light
(orange) flashes.
For the sensor maintenance, see “INTELLIGENT
CRUISE CONTROL (ICC) SYSTEM (FULL SPEED
RANGE)” earlier in this section.
The Intelligent Brake Assist (IBA) system warns
the driver by a warning light and chime when
there is a risk of a collision with the vehicle
ahead in the traveling lane and the driver must
take avoidance action immediately. The system
helps reduce the rear-end collision speed by
applying the brakes when the system judges
that the collision cannot be prevented.
The IBA system will function when your vehicle
is driven at speeds of approximately 10 MPH (15
km/h) and above, and when your vehicle is
driven at speeds approximately 10 MPH (15
km/h) faster than the vehicle ahead.
FCW/LDW switch
SIC3832
INTELLIGENT BRAKE ASSIST (IBA) SYSTEM
(if so equipped)
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●The system is designed to automatically
check the sensor’s functionality. If the sen-
sor is covered with ice, a transparent or
translucent plastic bag, etc., the system may
not detect them. In these instances the sys-
tem may not be able to warn the driver prop-
erly. Be sure to check and clean the sensor
regularly.
● Excessive noise will interfere with the warn-
ing chime sound, and the chime may not be
heard.
● Never place your foot under the brake pedal
when the IBA system turns on. Your foot may
be caught when the system controls the
brake.
● A sudden appearance of a vehicle in front
(i.e., it abruptly cuts in) may not be detected
and the system may not warn the driver soon
enough.
● The system will be cancelled automatically
with a beep sound and the IBA warning light
will illuminate under the following
conditions:
– When the sensor window is dirty
– When the system malfunctions If the IBA OFF indicator light illuminates with a
beep sound, pull off the road to a safe location,
stop the vehicle and turn the engine off. Check
to see if the sensor window is dirty. If the
sensor window is dirty, clean it with a soft cloth
and restart the engine. If the sensor window is
not dirty, restart the engine. If the IBA OFF
indicator light continues to illuminate even if
the IBA system is turned on, have the system
checked by an INFINITI retailer.
IBA system operation
The IBA system will function when your vehicle
is driven at speeds of approximately 10 MPH (15
km/h) or above, and when the vehicle’s speed
is approximately 10 MPH (15 km/h) faster than
that of the vehicle ahead.
To turn the system off/on, push and hold the
IBA OFF switch
Bfor more than 1 second after
starting the engine. When the IBA OFF indicator
light
Aon the instrument panel turns off and
the IBA OFF switch is pushed, the system will
turn off and the IBA OFF indicator light will
illuminate. When the IBA OFF switch is pushed
again, the system will turn on and the IBA OFF
indicator light will turn off.
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BRAKING PRECAUTIONS
The brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking at two wheels.
You may feel a small click and hear a sound
when the brake pedal is fully depressed slowly.
This is not a malfunction and indicates that the
brake assist mechanism is operating properly.
Vacuum assisted brakes
The brake booster aids braking by using engine
vacuum. If the engine stops, you can stop the
vehicle by depressing the brake pedal. How-
ever, greater foot pressure on the brake pedal
will be required to stop the vehicle and the
stopping distance will be longer.
When the brake pedal is depressed slowly and
firmly, you may hear a clicking noise and feel a
slight pulsation. This is normal and indicates
that the Brake Assist System is operating.
Wet brakes
When the vehicle is washed or driven through
water, the brakes may get wet. As a result, your
braking distance will be longer and the vehicle
may pull to one side during braking.
To dry brakes, drive the vehicle at a safe speed
while lightly tapping the brake pedal to heat-upthe brakes. Do this until the brakes return to
normal. Avoid driving the vehicle at high speeds
until the brakes function correctly.
EUROPEAN DESIGN BRAKE PADS (if so
equipped)
The FX50 Sport (only) is equipped with more
aggressive European style brake pads which
provide increased fade resistance when repeat-
edly braking from very high speeds. These pads
are likely to experience increased brake dust
and noise as well as increased pad and rotor
wear, with replacement intervals of less than
20,000 miles for some customers depending
upon their driving patterns.
PARKING BRAKE BREAK-IN
Break in the parking brake shoes whenever the
stopping effect of the parking brake is weak-
ened or whenever the parking brake shoes
and/or drums/rotors are replaced, in order to
assure the best braking performance.
This procedure is described in the vehicle ser-
vice manual and can be performed by an
INFINITI retailer.
Using the brakes
Avoid resting your foot on the brake pedal while
driving. This will cause overheating of thebrakes, wearing out the brake and pads faster
and reduce gas mileage.
To help save the brakes and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down a
slope or long grade. Overheated brakes may
reduce braking performance and could result in
loss of vehicle control.
WARNING
●
While driving on a slippery surface, be care-
ful when braking, accelerating or downshift-
ing. Abrupt braking or accelerating could
cause the wheels to skid and result in an
accident.
● If the engine is not running or is turned off
while driving, the power assist for the
brakes will not work. Braking will be harder.
BRAKE SYSTEM
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BRAKE ASSIST
When the force applied to the brake pedal
exceeds a certain level, the Brake Assist is
activated generating greater braking force than
a conventional brake booster even with light
pedal force.
WARNING
The Brake Assist is only an aid to assist braking
operation and is not a collision warning or
avoidance device. It is the driver’s responsibil-
ity to stay alert, drive safely and be in control of
the vehicle at all times.
PREVIEW FUNCTION (Intelligent Cruise
Control system equipped models)
When the Preview Function identifies the need
to apply emergency braking by sensing a ve-
hicle ahead in the same lane and the distance
and relative speed from it, it applies the brake
pre-pressure before the driver depresses the
brake pedal and helps improve brake response
by reducing pedal free play.
●This system will not operate when the ve-
hicle is moving at approximately 20 MPH (32
km/h) or less. ●
The pre-pressure function ceases when the
following conditions are met:
a) When the driver depresses the accelera- tor pedal or the brake pedal.
b) If the driver does not operate the accel- erator or brake pedal within approxi-
mately 1 second.
●The sensor will not detect:
a) Pedestrians or objects in the roadway
b) Oncoming vehicles in the same lane
c) Motorcycles traveling offset in the
travel lane as illustrated
WARNING
●This system is only an aid to assist braking
operation and is not a collision warning or
avoidance device. It is the driver’s responsi-
bility to stay alert, drive safely and be in
control of the vehicle at all times.
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BRAKE ASSIST
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●As there is a performance limit to the Pre-
view Function, never rely solely on this sys-
tem. This system does not correct careless
inattentive or absent-minded driving, or
overcome poor visibility in rain, fog, or other
bad weather. Reduce vehicle speed by de-
pressing the brake pedal, in order to main-
tain a safe distance between vehicles.
● The system may not detect the vehicle in
front of you in certain road or weather condi-
tions. The Preview Function may not operate
properly under the following conditions. The
vehicle is still driveable under normal condi-
tions and the Brake Assist will operate.
– When rain, snow or dirt adhere to the sys- tem sensor
– When strong light (for example, at sun- rise or sunset) is directly shining on the
front of the vehicle
– Winding or hilly roads may cause the sen- sor to temporarily not detect a vehicle in
the same lane or may detect objects or
vehicles in other lanes.
– Vehicle position in the lane may cause the sensor to temporarily not detect a vehicle
in the same lane or may detect objects or
vehicles in other lanes. ●
When the Preview Function operates, the
brake pedal may move slightly and may
make a small noise. This is not a system
malfunction.
Warning light and display
When the Preview Function is not operating
properly, the chime sounds and the system
warning light (orange) will come on.
Action to take :
If the warning light comes on, park the vehicle
in a safe place. Turn the engine off, restart the
engine and resume driving.
If the indicator stays on, it may indicate that the
Preview Function is malfunctioning (the brake is
operative). Although the Vehicle is still drive-
able under normal conditions, have the vehicle
checked at an INFINITI retailer.
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Self-test feature
The ABS includes electronic sensors, electric
pumps, hydraulic solenoids and a computer.
The computer has a built-in diagnostic feature
that tests the system each time you start the
engine and move the vehicle at a low speed in
forward or reverse. When the self-test occurs,
you may hear a “clunk” noise and/or feel a
pulsation in the brake pedal. This is normal and
does not indicate a malfunction. If the computer
senses a malfunction, it switches the ABS off
and illuminates the ABS warning light on the
instrument panel. The brake system then oper-
ates normally, but without anti-lock assistance.
If the ABS warning light illuminates during the
self-test or while driving, have the vehicle
checked by an INFINITI retailer.
Normal operation
The ABS operates at speeds above 3 to 6 MPH
(5 to 10 km/h). The speed varies according to
road conditions.
When the ABS senses that one or more wheels
are close to locking up, the actuator rapidly
applies and releases hydraulic pressure. This
action is similar to pumping the brakes very
quickly. You may feel a pulsation in the brake
pedal and hear a noise from under the hood or
feel a vibration from the actuator when it is
operating. This is normal and indicates that the
ABS is operating properly. However, the pulsa-
tion may indicate that road conditions are haz-
ardous and extra care is required while driving.The Vehicle Dynamic Control (VDC) system uses
various sensors to monitor driver inputs and
vehicle motion. Under certain driving condi-
tions, the VDC system helps to perform the
following functions.
●
Controls brake pressure to reduce wheel slip
on one slipping drive wheel so power is
transferred to a non slipping drive wheel on
the same axle.
● Controls brake pressure and engine output
to reduce drive wheel slip based on vehicle
speed (traction control function).
● Controls brake pressure at individual wheels
and engine output to help the driver main-
tain control of the vehicle in the following
conditions:
– understeer (vehicle tends to not follow the steered path despite increased steer-
ing input)
– oversteer (vehicle tends to spin due to certain road or driving conditions).
The VDC system can help the driver to maintain
control of the vehicle, but it cannot prevent loss
of vehicle control in all driving situations.
VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM
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When the VDC system operates, theindicator in the instrument panel flashes so
note the following:
●The road may be slippery or the system may
determine some action is required to help
keep the vehicle on the steered path.
● You may feel a pulsation in the brake pedal
and hear a noise or vibration from under the
hood. This is normal and indicates that the
VDC system is working properly.
● Adjust your speed and driving to the road
conditions.
● See “Slip indicator light” and “Vehicle Dy-
namic Control (VDC) off indicator light” in
the “Instruments and controls” section.
If a malfunction occurs in the system, the
andindicator lights come on in the
instrument panel. The VDC system automati-
cally turns off when these indicator lights are
on. The VDC OFF switch is used to turn off the VDC
system. The VDC off indicator illuminates to
indicate the VDC system is off. When the VDC
switch is used to turn off the system, the VDC
system still operates to prevent one drive wheel
from slipping by transferring power to a non
slipping drive wheel. The
indicator
flashes if this occurs. All other VDC functions
are off and the
indicator will not flash.
The VDC System is automatically reset to on
when the ignition switch is placed in the off
position then back to the on position.
The computer has a built-in diagnostic feature
that tests the system each time you start the
engine and move the vehicle forward or in
reverse at a slow speed. When the self-test
occurs, you may hear a “clunk” noise and/or
feel a pulsation in the brake pedal. This is
normal and is not an indication of a malfunc-
tion.
WARNING
● The VDC system is designed to help the
driver maintain stability but does not pre-
vent accidents due to abrupt steering opera-
tion at high speeds or by careless or danger-
ous driving techniques. Reduce vehicle
speed and be especially careful when driving
and cornering on slippery surfaces and al-
ways drive carefully.
● If engine control related parts are not
INFINITI recommended or are extremely de-
teriorated, both the
andindica-
tor lights may illuminate.
● Do not modify the vehicle’s suspension. If
suspension parts such as shock absorbers,
struts, springs, stabilizer bars, bushings
and wheels are not INFINITI recommended
for your vehicle or are extremely deterio-
rated, the VDC system may not operate prop-
erly. This could adversely affect vehicle han-
dling performance, and the
indicator
may flash or both
andindicator
lights may illuminate.
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●If brake related parts such as brake pads,
rotors and calipers are not INFINITI recom-
mended or are extremely deteriorated, the
VDC system may not operate properly and
both
andindicator lights may
illuminate.
● When driving on extremely inclined surfaces
such as higher banked corners, the VDC sys-
tem may not operate properly and the
indicator may flash or bothandindicator lights may illuminate. Do not drive
on these types of roads.
● When driving on an unstable surface such as
a turntable, ferry, elevator or ramp, the
indicator may flash or bothand
indicator lights may illuminate. This
is not a malfunction. Restart the engine after
driving onto a stable surface.
● If wheels or tires other than the INFINITI rec-
ommended ones are used, the VDC system
may not operate properly and the
in-
dicator may flash or both
andindicator lights may illuminate.
● The VDC system is not a substitute for winter
tires or tire chains on a snow covered road. The Rear Active Steer system is an electronically
controlled four-wheel steering system.
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 nor-
mally. 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 so-
phisticated device, cannot prevent accidents
resulting from careless or dangerous driving
techniques. Ultimately the responsibility for
safety of self and others rests in the hands of
the driver. Therefore only through attentive
and careful driving methods can the Rear Active
Steer system be fully appreciated and safety
assured.
REAR ACTIVE STEER SYSTEM (if so
equipped)
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WARNING
Always follow the instructions below. Failure to
do so could result in damage to the charging
system and cause personal injury.
1. Remove the engine compartment cover, ifnecessary. See “ENGINE COMPARTMENT
CHECK LOCATIONS” in the “8. Mainte-
nance and do-it-yourself” section.
2. If the booster battery is in another vehicle
A, position the two vehicles (AandB)
to bring their batteries into close proxim-
ity to each other.
Do not allow the two vehicles to touch.
3. Apply parking brake. Move the selector lever to the P (Park) position. Switch off
all unnecessary electrical systems (light,
heater, air conditioner, etc.).
4. Remove vent caps on the battery (if so equipped). Cover the battery with a firmly
wrung out moist cloth
Cto reduce explo-
sion hazard.
VQ35HR engine
SCE0772
VK50VE engine
SCE0770
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8 Maintenance and do-it-yourself
Maintenance requirement.......................... 8-2
Scheduled maintenance ........................ 8-2
General maintenance ........................... 8-2
Where to go for service ......................... 8-2
General maintenance .............................. 8-2
Explanation of maintenance items ............... 8-2
Maintenance precautions .......................... 8-5
Engine compartment check locations ................ 8-6
VQ35HR engine ................................ 8-6
Vk50ve engine ................................. 8-7
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 and filter ...................8-11
Automatic transmission fluid ......................8-13
Power steering fluid .............................. 8-13
Brake fluid ...................................... 8-14
Brake fluid ................................... 8-14
Window washer fluid ............................. 8-14
Battery .......................................... 8-15
Jump starting ................................. 8-16
Variable voltage control system ...................8-17Drive belts
....................................... 8-17
Spark plugs ..................................... 8-18
Replacing spark plugs ......................... 8-18
Air cleaner ....................................... 8-19
Windshield wiper blades .......................... 8-19
Cleaning ...................................... 8-19
Replacing ..................................... 8-20
Rear window wiper blades ........................8-21
Brakes .......................................... 8-21
Self-adjusting brakes .......................... 8-21
Brake pad wear warning ....................... 8-21
Fuses ........................................... 8-22
Engine compartment ........................... 8-22
Passenger compartment ....................... 8-23
Intelligent

Key battery replacement ................8-23
Lights ........................................... 8-25
Headlights .................................... 8-26
Exterior and interior lights .....................8-26
Wheels and tires ................................. 8-28
Tire pressure .................................. 8-28
Tire labeling .................................. 8-32
Types of tires ................................. 8-34
Tire chains ................................... 8-35
Changing wheels and tires..................... 8-36
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