brakes INFINITI QX30 2017 User Guide

•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
5-62Starting and driving

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
Starting and driving5-63

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
Starting and driving5-87

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.
5-88Starting and driving

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.
Starting and driving5-89

•When driving on extremely inclined sur-
faces such as higher banked corners, the
VDC system may not operate properly and
the VDC warning light
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
VDC warning light
may illuminate. This
is not a malfunction. Restart the engine af-
ter driving onto a stable surface.
•If wheels or tires other than the INFINITI
recommended ones are used, the VDC sys-
tem may not operate properly and the VDC
warning light
may illuminate.
•The VDC system is not a substitute for win-
ter tires or tire chains on a snow covered
road.
•If VDC is malfunctioning, VDC is unable to
stabilize the vehicle. In addition, other driv-
ing safety systems are switched off. This
increases the risk of skidding and an acci-
dent. Drive on carefully. Have VDC checked.
It is recommended you visit an INFINITI re-
tailer for this service.
CAUTION
•When VDC is deactivated, theVDC
OFF warning light lights up continuously.
•If both thewarning light andwarning light are lit continuously, VDC is
not available due to a malfunction.
TRACTION CONTROL SYSTEM (TCS)
The Traction Control System (TCS) is part of
VDC..
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is trans-
ferred to the wheel or wheels with traction.
Traction control remains active if you deactivate
VDC.
CHARACTERISTICS OF VDC
If theVDC warning light goes out before
beginning the journey, VDC is automatically
active.
If VDC intervenes, the
VDC warning lamp
flashes in the combination meter.If VDC intervenes:
•Do not deactivate VDC under any circum-
stances.
•When pulling away, only depress the accel-
erator pedal as far as is necessary.
•Adapt your driving style to suit the prevail-
ing road and weather conditions.
Deactivating/activating VDC
WARNING
If you deactivate VDC, VDC no longer stabilizes
the vehicle. There is an increased risk of skid-
ding and an accident.
Only deactivate VDC in the situations de-
scribed in the following section.
You can select between the following statuses
of VDC:
•VDC is activated.
•VDC is deactivated.
It may be best to deactivate VDC in the follow-
ing situations:
•When using snow chains.
•In deep snow.
•On sand or gravel.
Starting and driving5-91

8 Do-it-yourself
Maintenance precautions..................8-2
Engine compartment check locations...........8-3
2.0L Gasoline engine...................8-3
Engine cooling system....................8-3
Checking engine coolant level.............8-4
Changing engine coolant................8-5
Engine oil............................8-5
Checking engine oil level................8-5
Changing engine oil...................8-5
Changing engine oil filter................8-6
Automatic Transmission Fluid (ATF)............8-7
Brake fluid...........................8-7
Window washer fluid.....................8-8
Battery.............................8-9
Accessing Vehicle battery...............8-10
Maintenance free battery................8-10
Models with Idle Stop/Start System.........8-11
Battery replacement...................8-11
Reinitialisation procedure after battery
reconnection.......................8-12
Jump-starting.......................8-12
Drive belt...........................8-12
Spark plugs..........................8-13
Air cleaner filter.......................8-13
Wiper blades.........................8-13Cleaning..........................8-13
Replacing front window wiper blades........8-14
Replacing rear window wiper blade..........8-15
Brakes.............................8-17
Self-adjusting brakes..................8-17
Fuses..............................8-17
Before replacing a fuse.................8-17
Engine compartment...................8-17
Passenger compartment................8-18
Intelligent key battery replacement..........
.8-20
Checking the battery..................8-20
Replacing the battery..................8-20
Lights.............................8-22
Exterior and interior lights...............8-22
Replacement procedures................8-24
Wheels and tires.......................8-27
Tire Pressure.......................8-27
Tire inflation pressure.................8-29
Tire labeling.......................8-30
Types of tires.......................8-31
Tire chains........................8-33
Tire wear and damage.................8-33
Tire rotation.......................8-34
Replacing wheels and tires..............8-34
Wheel balance......................8-36

If the brakes do not operate properly, it is
recommended that you have the brakes
checked. It is recommended that you visit an
INFINITI retailer for this service.
SELF-ADJUSTING BRAKES
Your vehicle is equipped with self-adjusting
brakes. The disc-type brakes self-adjust every
time the brake pedal is applied.Blown fuses must be replaced with fuses of the
same rating, which you can recognise by the
color and fuse rating. The fuse ratings are listed
in the fuse allocation chart.
If the newly inserted fuse also blows, have the
cause traced and rectified. It is recommended
you visit an INFINITI retailer for this service.
The fuses in your vehicle disconnect faulty
circuits. if a fuse blows, all the components on
the circuit and their functions will fail.
BEFORE REPLACING A FUSE
•Secure the vehicle against rolling away.
•Switch off all electrical consumers.
•Remove the key from the ignition lock.
The fuses are located in various fuse boxes:
•Fusebox in the engine compartment on the
left-hand side of the vehicle, when viewed in
the direction of travel.
•Fuse box in the front-passenger footwell.
The fuse allocation chart is on the fuse box in
the front-passenger footwell.
ENGINE COMPARTMENT
WARNING
Never use a fuse of higher or lower amperage
rating than that specified on the fuse box
cover. This could damage the electrical system
or electronic control units or cause a fire.
BRAKES FUSES
Do-it-yourself8-17

released. When driving in areas using road salt
or other corrosive materials, check lubrication
frequently.
Lights*
:
Clean the headlights on a regular basis. Make
sure that the headlights, stop lights, tail lights,
turn signal lights, and other lights are all oper-
ating properly and installed securely. Also
check the aim of the headlights.
Road wheel nuts (lug nuts)*
:
When checking the tires, make sure no wheel
nuts are missing, and check for any loose wheel
nuts. Tighten if necessary.
Tire rotation*
:
Tires should be rotated every 5,000 miles
(8,000 km). Tires marked with directional indi-
cators can only be rotated between front and
rear. Make sure that the directional indicators
point in the direction of wheel rotation after the
tire rotation is completed.
Tires*
:
Check the pressure with a gauge often and
always prior to long distance trips. Adjust the
pressure in all tires to the pressure specified.
Check carefully for damage, cuts or excessive
wear.Tire Pressure Monitoring System (TPMS) trans-
mitter components
:
Replace the TPMS transmitter grommet seal,
valve core and cap when the tires are replaced
due to wear or age.
Wheel alignment and balance
:
If the vehicle should pull to either side while
driving on a straight and level road, or if you
detect uneven or abnormal tire wear, there may
be a need for wheel alignment.
If the steering wheel or seat vibrates at normal
highway speeds, wheel balancing may be
needed.
For additional information regarding tires, refer
to “Important Tire Safety Information” (US) or
“Tire Safety Information” (Canada) in the
INFINITI Warranty Information Booklet.
Windshield
:
Clean the windshield on a regular basis. Check
the windshield at least every six months for
cracks or other damage. Have a damaged wind-
shield repaired by a qualified repair facility.
Wiper blades*
:
Check for cracks or wear if not functioning
correctly. Replace as necessary.
Inside the vehicle
The maintenance items listed here should be
checked on a regular basis, such as when
performing scheduled maintenance, cleaning
the vehicle, etc.
Accelerator pedal
:
Check the pedal for smooth operation and make
sure that the pedal does not catch or require
uneven effort. Keep the floor mat away from the
pedal.
Automatic transmission P (Park) mechanism
:
On a fairly steep hill, check that your vehicle is
held securely when P (Park) has been activated,
without applying any brakes.
Brake pedal*
:
Check the pedal for smooth operation. If the
brake pedal suddenly goes down further than
normal, the pedal feels spongy or the vehicle
seems to take longer to stop, have your vehicle
checked immediately. It is recommended you
visit an INFINITI retailer for this service. Keep
the floor mat away from the pedal.
Brakes
:
Check that the brakes do not pull the vehicle to
one side when applied.
Maintenance and Schedules9-3