2017 INFINITI QX30 brakes

System operation
The driver sets the desired vehicle speed based
on the road conditions. The ICC system main-
tains the set vehicle speed, similar to standard
cruise control, as long as no vehicle is detected
in the lane ahead. The ICC system displays the
set speed for 5 seconds after the cruise control
lever is activated.
Vehicle detected ahead
:
When a vehicle is detected in the lane ahead,
the ICC system decelerates the vehicle by con-
trolling the throttle and applying the brakes to
match the speed of a slower vehicle ahead. The
system then controls the vehicle speed based
on the speed of the vehicle ahead to maintain
the driver selected distance.The brake lights of the vehicle come on when
braking is performed by the ICC system. When
the brake operates, a noise may be heard. This
is not a malfunction.
When a vehicle ahead is detected, the vehicle
ahead symbol
1appears in the vehicle infor-
mation display.
Vehicle ahead not detected
:
When a vehicle is no longer detected ahead, the
ICC system gradually accelerates your vehicle to
resume the previously set vehicle speed. The
ICC system then maintains the set speed.
When a vehicle is no longer detected, the
vehicle ahead display turns off
2.If a vehicle ahead appears during acceleration
to the set vehicle speed or any time the ICC
system is in operation, the system controls the
distance to that vehicle.
Changing lanes to pass another
vehicle:
When you changes lane to pass another ve-
hicle, ICC supports the action if:
•The vehicle speed is more than 45 MPH (70
km/h)
•The ICC is maintaining the distance to a
vehicle in front
•The respective turn signal is activated
If these conditions are met, the vehicle will be
accelerated. Acceleration will be interrupted if
changing lanes takes too long or if the distance
between your vehicle and the vehicle in front
becomes too small.
NSD615System set display with vehicle aheadNSD616System set display without vehicle ahead
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For further information on deactivating the ICC
system, seeICC switch (cruise control lever)
earlier in this section
If the ICC system detects that the vehicle in
front is stopping, it brakes your vehicle until it
is stationary (within the braking limitations of
the system).
Once your vehicle is stationary, it remains sta-
tionary and you do not need to depress the brake.
NOTE
•After a short period, the vehicle is secured
by the electric parking brake, thus relieving
the service brake.
•Depending on the specified minimum dis-
tance, your vehicle will come to a standstill
at a sufficient distance behind the vehicle in
front. The specified minimum distance is set
using the control on the cruise control lever.
The electric parking brake secures the vehicle
automatically if the ICC system is activated
when the vehicle is stationary and:
•A system fault occurs.
•The power supply is insufficient.
If a malfunction in the electric parking brake
occurs, then the transmission may also be
shifted into position P (Park) automatically.
How to change the set distance to
the vehicle ahead
The distance to the vehicle ahead can be se-
lected at any time depending on the traffic
conditions.
To increase the distance to the vehicle ahead,
turn the knob
3toward the rear2.Tode-
crease the distance to the vehicle ahead, turn
the knob
3toward the front1.
You can see this distance in the vehicle infor-
mation display.
The distance to the vehicle ahead will change
according to the vehicle speed. The higher the
vehicle speed, the longer the distance.
Approach warning
If your vehicle comes closer to the vehicle
ahead due to rapid deceleration of that vehicle
or if another vehicle cuts in, the system warns
the driver with the chime and distance warning
light. Decelerate by depressing the brake pedal
to maintain a safe vehicle distance if:
•The chime sounds.
•The distance warning light is illuminated.
The warning chime may not sound and the
distance warning light may not illuminate in
some cases when there is a short distance
between vehicles. Some examples are:
•When the vehicles are traveling at the same
speed and the distance between vehicles is
not changing. In this case, the distance
warning light will be on.
•When the vehicle ahead is traveling faster
and the distance between vehicles is increas-
ing.
•When a vehicle cuts in near your vehicle
NSD583A
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•The system may not detect the vehicle in
front of you in certain road or weather con-
ditions. To avoid accidents, never use the
ICC system under the following conditions:
–On roads where the traffic is heavy or
there are sharp curves.
–On slippery road surfaces such as on ice
or snow, etc.
–During bad weather (rain, fog, snow,
etc.).
–When rain, snow or dirt adhere to the
system sensor.
–On steep downhill roads (the vehicle
may go beyond the set vehicle speed and
frequent braking may result in overheat-
ing the brakes).
–On repeated uphill and downhill roads.
–When traffic conditions make it difficult
to keep a proper distance between ve-
hicles because of frequent acceleration
or deceleration.
–If there is interference by other radar
sources.
•Do not use the ICC system if you are towing
a trailer. The system may not detect a ve-
hicle ahead.
•In some road or traffic conditions, a vehicle
or object can unexpectedly come into the
sensor detection zone and cause automatic
braking. You may need to control the dis-
tance from other vehicles using the accel-
erator pedal. Always stay alert and avoid
using the ICC system when it is not recom-
mended in this section.
•The distance sensor will not detect the fol-
lowing objects:
–Stationary and slow moving vehicles.
–Pedestrians or objects in the roadway.
–Oncoming vehicles in the same lane.
–Motorcycles traveling offset in the travel
lane.
The following are some conditions in which the
sensor cannot properly detect a vehicle ahead
and the system may not operate properly:
•When the snow or road spray from traveling
vehicles reduces the sensor’s visibility.
•When excessively heavy baggage is loaded
in the rear seat or the luggage room of your
vehicle.The ICC system is designed to automatically
check the sensor’s operation within the limita-
tion of the system. When the sensor is covered
with dirt or is obstructed, the system will auto-
matically be canceled. If the sensor is covered
with ice, a transparent or translucent vinyl bag,
etc., the ICC system may not detect them. In
these instances, the ICC system may not cancel
and may not be able to maintain the selected
following distance from the vehicle ahead. Be
sure to check and clean the sensor regularly.
TIPS FOR DRIVING WITH THE ICC
SYSTEM
General notes
The following contains descriptions of certain
road and traffic conditions in which you must be
particularly attentive. In such situations, brake
if necessary. The ICC system is then deactivated
Starting and driving5-55

Distance warning function
The distance warning function can help you to
minimize the risk of a collision with the vehicle
in front or reduce the effects of such a collision.
If the distance warning function detects that
there is a risk of a collision, you will be warned
visually and audibly.
The distance warning function issues a warning
at speeds:
•Of approximately 20 MPH (30 km/h) or
more, if, over several seconds the distance
maintained to the vehicle traveling in front is
insufficient. The distance warning light then
lights up in the combination meter.
•Of approximately 4 MPH (7 km/h) or more, if
you rapidly approach a vehicle in front. An
intermittent warning tone will then sound
and the distance warning light will light up in
the combination meter.
If a warning is issued:
•Brake immediately in order to increase the
distance from the vehicle in front.
or
•Take evasive action provided it is safe to do
so.
WARNING
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause the system to display a
warning.
Up to a speed of approximately 45 MPH (70
km/h), the distance warning function can also
react to stationary (stopped or parked) vehicles.
If you approach a stationary vehicle and the
distance warning function detects a risk of a
collision, the system will alert you both visually
and acoustically.
Autonomous braking function
If the driver does not react to the distance
warning signal in a critical situation, the FEB
system can assist with the autonomous braking
function
The autonomous braking function can help the
driver to avoid an accident or reduces the
effects of an accident.
The autonomous braking function is available in
the following speed ranges:
•4–125 MPH (7-200 km/h) for moving ve-
hicles
•4–30 MPH (7 -50 km/h) for stationary ve-
hicles
Adaptive brake assist function
Adaptive brake assist function provides braking
assistance in hazardous situations at speeds
above 4MPH (7 km/h). It uses radar sensor
technology to assess the traffic situation.
If the system detects a risk of collision with the
vehicle in front, it calculates the braking force
necessary to avoid a collision. If you apply the
brakes forcefully, the adaptive brake assist
function will automatically increase the braking
force to a level suitable for the traffic condi-
tions.
NSD598Distance warning light
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If the adaptive brake assist function activates,
keep the brake pedal depressed until the emer-
gency braking situation is over. ABS prevents
the wheels from locking.
The brakes will work normally again if:
•You release the brake pedal.
•There is no longer any danger of a collision.
•No obstacle is detected in front of your
vehicle.
The brake assist function is then deactivated.
At high speeds, the adaptive brake assist func-
tion is capable of reacting to moving objects
that have already been detected as such at
least once over the period of observation.
Up to a speed of approximately 45 MPH (70
km/h), the adaptive brake assist function reacts
to stationary vehicles.
TURNING THE FEB SYSTEM ON/OFF
1Steering-wheel mounted controls (left
side)
2Vehicle information display
ADisplay area
BMenu barUse the following procedure to turn the FEB
system on or off:
1. Press the
button on the
steering wheel
1to select the [DriveAssist]
menu on the Menu bar
B.
NSD626
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CAUTION
•If wheels or tires other than INFINITI recom-
mended ones are used, the power steering
system may not operate properly and the
[Power Steering Malfunction See Operators
Manual] warning may appear in the vehicle
information display.
•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 power steering system may not
operate properly and the [Power Steering
Malfunction See Operators Manual] warn-
ing may appear in the vehicle information
display.
•Do not modify the vehicle’s steering. If
steering parts are not INFINITI recom-
mended for your vehicle or are extremely
deteriorated, the power steering system
may not operate properly and the [Power
Steering Malfunction See Operators
Manual] warning may appear in the vehicle
information display.
•Do not place the ignition switch in the on
position while the steering wheel or a tire is
removed.
•Do not turn the steering wheel as much as
possible while the ignition switch is in any
position other than the ON position.
•Installing an accessory on the steering
wheel, or changing the steering wheel, may
reduce the steering performance.
NOTE
When the steering wheel is operated repeatedly
or continuously while parking or driving at a very
low speed, the power assistance for the steering
wheel will be reduced. This is to prevent over-
heating of the electric power steering system
and protect it from becoming damaged. While
the power assistance is reduced, steering wheel
operation will become heavy. When the tem-
perature of the electric power steering system
decreases, the power assistance level will return
to normal. Avoid repeating such steering wheel
operations that could cause the electric power
steering system to overheat.The brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking ability at two wheels.
BRAKE PRECAUTIONS
WARNING
While driving on a slippery surface, be careful
when braking, accelerating or downshifting.
Abrupt braking or accelerating could cause the
wheels to skid and result in an accident.
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. The stop-
ping distance will be longer.
WARNING
•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.
•Do not coast with the engine stopped.
BRAKE SYSTEM
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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 (if
equipped).
Using brakes
Avoid resting your foot on the brake pedal while
driving. This will overheat the brakes, wear out
the brake linings/pads faster, and increase fuel
consumption.
To help reduce brake wear 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.
While driving on a slippery surface, be careful
when braking, accelerating or downshifting.
Abrupt braking or acceleration could cause the
wheels to skid and result in an accident.
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 the brakes, drive the vehicle at a safe
speed while lightly depressing the brake pedal
to heat up the brakes. Do this until the brakes
return to normal. Avoid driving the vehicle at
high speeds until the brakes function correctly.
Driving uphill
When starting on a steep gradient, it is some-
times difficult to operate the brake. Use the
parking brake to hold the vehicle. When ready
to start, make sure that the shift lever is in an
appropriate forward or reverse driving position,
release the parking brake while depressing the
accelerator pedal. If your vehicle has an electric
parking brake, this will automatically release
when you depress the accelerator pedal (DCT
models).
Driving downhill
The engine braking action is effective for con-
trolling the vehicle while descending hills.
A low gear position in the manual shift mode,
low enough to obtain sufficient engine braking,
should be selected.
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.
ANTI-LOCK BRAKING SYSTEM (ABS)
WARNING
The Anti-lock Braking System (ABS) is a so-
phisticated device, but it cannot prevent acci-
dents resulting from careless or dangerous
driving techniques. It can help maintain ve-
hicle control during braking on slippery sur-
faces. Remember that stopping distances on
slippery surfaces will be longer than on normal
surfaces even with ABS. Stopping distances
may also be longer on rough, gravel or snow
covered roads, or if you are using tire chains.
Always maintain a safe distance from the ve-
hicle in front of you. Ultimately, the driver is
responsible for safety.
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Tire type and condition may also affect braking
effectiveness.
–When replacing tires, install the specified
size of tires on all four wheels.
–
When installing a replacement tire, make sure
that it is the proper size and type as specified on
the tire and loading information label. (See
Wheels and Tiresin the9. Maintenance and
Schedulessection.)
–For detailed information, seeWheels and
tiresin the8. Do-it-yourselfsection.
The Anti-lock Braking System (ABS) controls the
brakes so the wheels do not lock during hard
braking or when braking on slippery surfaces.
The system detects the rotation speed at each
wheel and varies the brake fluid pressure to
prevent each wheel from locking and sliding. By
preventing each wheel from locking, the system
helps the driver maintain steering control and
helps to minimize swerving and spinning on
slippery surfaces.
Using system
Depress the brake pedal and hold it down.
Depress the brake pedal with firm steady pres-
sure, but do not pump the brakes. The ABS will
operate to prevent the wheels from locking up.
Steer the vehicle to avoid obstacles.
WARNING
Do not pump the brake pedal. Doing so may
result in increased stopping distances.
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. It is recommended you visit an
INFINITI retailer for this service.
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.
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