brake sensor NISSAN QASHQAI 2020 Owner´s Manual

5-128Starting and driving
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 de-
vice. It is the driver’s responsibility to
stay alert, drive safely and be in
control of the vehicle at all times.
ANTI-LOCK BRAKING SYSTEM (ABS)
WARNING
.The Anti-lock Braking System
(ABS) is a sophisticated device,
but it cannot prevent accidents
resulting from careless or dan-
gerous driving techniques. It can
help maintain vehicle control dur-
ing braking on slippery surfaces.
Remember that stopping dis-
tances on slippery surfaces will
be longer than on normal sur- faces 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 vehicle in front
of you. Ultimately, the driver is
responsible for safety.
. 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 spare tire (if so equipped), make sure that
it is the proper size and type
as specified on the Tire and
Loading Information label.
See “Tire and Loading Infor-
mation label” (P.10-10) of this
manual.
— For detailed information, see “Wheels and tires” (P.8-29) of
this manual.
The Anti-lock Braking System (ABS) con-
trols 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 pre-
venting each wheel from locking, the
system helps the driver maintain steering
control and helps to minimize swerving
and spinning on slippery surfaces.
Using the system
Depress the brake pedal and hold it down.
Depress the brake pedal with firm steady
pressure, 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, elec-
tric 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 malfunc-
BRAKE ASSIST

tion. If the computer senses a malfunc-
tion, it switches the ABS off and illumi-
nates the ABS warning light on the
instrument panel. The brake system then
operates 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 a NISSAN dealer 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. How-
ever, the pulsation may indicate that road
conditions are hazardous and extra care
is required while driving.The Vehicle Dynamic Control (VDC) sys-
tem uses various sensors to monitor
driver inputs and vehicle motion. Under
certain driving conditions, the VDC sys-
tem helps to perform the following func-
tions.
.
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 con-
trol function).
. Controls brake pressure at individual
wheels and engine output to help the
driver maintain control of the vehicle
in the following conditions:
— understeer (vehicle tends to not
follow the steered path despite
increased steering input)
— oversteer (vehicle tends to spin due to certain road or driving condi-
tions).
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.
When the VDC system operates, the VDC
warning light
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.
If a malfunction occurs in the system, the
VDC warning light
illuminates in the
instrument panel. The VDC system auto-
matically turns off.
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 VDC warning
light
flashes if this occurs. All other
VDC functions are off, and the VDC
warning light
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.
See “Vehicle Dynamic Control (VDC) warn-
ing light” (P.2-15) and “Vehicle Dynamic
Control (VDC) off indicator light” (P.2-18).
Starting and driving5-129
VEHICLE DYNAMIC CONTROL (VDC) SYSTEM

5-132Starting and driving
scenes).
INTELLIGENT ENGINE BRAKE (Con-
tinuously Variable Transmission
(CVT) models)
The Intelligent Engine Brake function
adds subtle deceleration by controlling
CVT gear ratio, depending on the corner-
ing condition calculated from driver’s
steering input and plural sensors. This
benefit to easier traceability and less
workload of adjusting speed with braking
at corners.
The Intelligent Engine Brake also adds
subtle deceleration with gear ratio con-
trol according to driver’s brake pedal
operation.
The Intelligent Engine Brake can be set to
ON (enabled) or OFF (disabled) through
the Vehicle Information Display “Settings”
page. See “Vehicle information display”
(P.2-19) for more information.
JVS0403X
When the Intelligent Engine Brake is
operated at corners and the “Chassis
Control” mode is selected in the trip
computer, the Intelligent Engine Brake
graphics are shown in the vehicle infor-
mation display. See “Trip computer” (P.2-
40) for more information.
If the chassis control warning message
appears in the vehicle information dis-
play, it may indicate that the Intelligent
Engine Brake is not functioning properly.
Have the system checked as soon as
possible. It is recommended that you visit
a NISSAN dealer for this service.
WARNING
The Intelligent Engine Brake may not
be effective depending on the driv-
ing condition. Always drive carefully
and attentively.
When the Intelligent Engine Brake is
operating, the needle of the tachometer
will rise up and you may hear an engine
noise. This is normal and indicates that
the Intelligent Engine Brake is operating
properly.

other maneuvers. Always look
around and check that it is safe
to do so before parking.
. Read and understand the limita-
tions of the RSS as contained in
this section. The colors of the
sonar indicator and the distance
guide lines in the rear view in-
dicate different distances to the
object.
. Inclement weather or ultrasonic
sources such as an automatic car
wash, a truck’s compressed-air
brakes or a pneumatic drill may
affect the function of the system;
this may include reduced perfor-
mance or a false activation.
. The RSS is designed as an aid to
the driver in detecting large sta-
tionary objects to help avoid da-
maging the vehicle.
. The RSS is not designed to pre-
vent contact with small or mov-
ing objects. Always move slowly.
The system will not detect small
objects below the bumper, and
may not detect objects close to
the bumper or on the ground.
. The RSS may not detect the
following objects: fluffy objects
such as snow, cloth, cotton, glass, wool, etc.; thin objects such as
rope, wire and chain, etc.; or
wedge-shaped objects.
If your vehicle sustains damage to the
bumper fascia, leaving it misaligned or
bent, the sensing zone may be altered
causing inaccurate measurement of ob-
stacles or false alarms.
CAUTION
. Excessive noise (such as audio
system volume or an open vehi-
cle window) will interfere with the
tone and it may not be heard.
. Keep the sonar sensors (located
on the rear bumper fascia) free
from snow, ice and large accu-
mulations of dirt. Do not clean the
sensors with sharp objects. If the
sensors are covered, the accuracy
of the sonar function will be
diminished.
SYSTEM OPERATION
The system informs with a visual and
audible alert of rear obstacles when the
shift lever is in the R (Reverse) position.
Range Rear sonar
Sound Display
P (Park) B C
R (Reverse) O O
N (Neutral) B C
D (Drive) B C
O = Display / Beep when detect
C = Display on camera view
B = No display and beep
The system is deactivated at speeds
above 6 MPH (10 km/h). It is reactivated
at lower speeds.
The intermittent tone will stop after 3
seconds when an obstacle is detected by
only the corner sensor and the distance
does not change. The tone will stop when
the obstacle gets away from the vehicle.
When the object is detected, the indicator
(green) appears and blinks and the tone
sounds intermittently. When the vehicle
moves closer to the object, the color of
the indicator turns yellow and the rate of
the blinking increases. When the vehicle is
very close to the object, the indicator
stops blinking and turns red, and the tone
Starting and driving5-135

5-138Starting and driving
RSS LIMITATIONS
WARNING
Listed below are the RSS limitations
for the sonar system. Failure to
operate the vehicle in accordance
with these system limitations could
result in serious injury or death.
.Read and understand the limita-
tions of the RSS as contained in
this section. Inclement weather
may affect the function of the
RSS; this may include reduced
performance or a false activation.
. The system is deactivated at
speeds above 6 MPH (10 km/h).
It is reactivated at lower speeds.
. Inclement weather or ultrasonic
sources such as an automatic car
wash, a truck’s compressed-air
brakes or a pneumatic drill may
affect the function of the RSS;
this may include reduced perfor-
mance or a false activation.
. The RSS is not designed to pre-
vent contact with small or mov-
ing objects. Always move slowly.
The system will not detect small
objects below the bumper or on
the ground. .
The RSS may not detect the
following objects: fluffy objects
such as snow, cloth, cotton,
glass-wool, etc.; thin objects such
as rope, wire and chain, etc.; or
wedge-shaped objects.
. The RSS may not detect objects
at speed above 3 MPH (5 km/h)
and may not detect certain angu-
lar or moving objects.
SYSTEM TEMPORARILY UNAVAIL-
ABLE
When sonar blockage is detected, the
system will be deactivated automatically.
The system is not available until the
conditions no longer exist.
The sonar sensors may be blocked by
temporary ambient conditions such as
splashing water, mist or fog. The blocked
condition may also be caused by objects
such as ice, frost or dirt obstructing the
sonar sensors.
Action to take:
When the above conditions no longer
exist, the system will resume automati-
cally.
WAF0077X
SYSTEM MAINTENANCE
The sonar sensorsare located on the
rear bumper. Always keep the area near
the sonar sensors clean.
The sonar sensors may be blocked by
temporary ambient conditions such as
splashing water, mist or fog.
The blocked condition may also be
caused by objects such as ice, frost or
dirt obstructing the sonar sensors.
Check for and remove objects obstruct-
ing the area around the sonar sensors.
Do not attach stickers (including trans-
parent material), install accessories or

6-4In case of emergency
.Replacing tires with those not
originally specified by NISSAN
could affect the proper operation
of the TPMS.
. Do not inject any tire liquid or
aerosol tire sealant into the tires,
as this may cause a malfunction
of the tire pressure sensors
(models without emergency tire
puncture repair kit).
. NISSAN recommends using only
Genuine NISSAN Emergency Tire
Sealant provided with your vehi-
cle. Other tire sealants may da-
mage the valve stem seal which
can cause the tire to lose air
pressure. Visit a NISSAN dealer
as soon as possible after using
tire repair sealant (models with
emergency tire puncture repair
kit).
CHANGING A FLAT TIRE (models
with spare tire)
If you have a flat tire, follow the instruc-
tions below.
Stopping the vehicle
1. Safely move the vehicle off the road
and away from traffic.
2. Turn on the hazard warning flashers.
3. Park on a level surface and apply the parking brake.
4. Continuously Variable Transmission
(CVT) models:
Move the shift lever to the P (Park)
position.
Manual Transmission (MT) models:
Move the shift lever to the R (Reverse)
position.
5. Turn off the engine.
6. Raise the hood to warn other traffic, and to signal professional road assis-
tance personnel that you need assis-
tance.
7. Have all passengers get out of the vehicle and stand in a safe place, away
from traffic and clear of the vehicle.
WARNING
.Make sure the parking brake is
securely applied and the Manual
Transmission is shifted into R
(Reverse), or the CVT into P (Park). .
Never change tires when the ve-
hicle is on a slope, ice or slippery
areas. This is hazardous.
. Never change tires if oncoming
traffic is close to your vehicle.
Wait for professional road assis-
tance.

equipped with 4 tires that were
the same size and you are only
replacing 2 of the 4 tires, install
the new tires on the rear axle.
Placing new tires on the front
axle may cause loss of vehicle
control in some driving condi-
tions and cause an accident and
personal injury.
. If the wheels are changed for any
reason, always replace with
wheels which have the same off-
set dimension. Wheels of a differ-
ent off-set could cause prema-
ture tire wear, degrade vehicle
handling characteristics and/or
interference with the brake
discs/drums. Such interference
can lead to decreased braking
efficiency and/or early brake
pad/shoe wear. See “Wheels and
tires” (P.10-7) of this manual for
wheel off-set dimensions.
. Since the spare tire (if so
equipped) is not equipped with
the TPMS, when a spare tire is
mounted or a wheel is replaced,
the TPMS will not function and
the low tire pressure warning
light will flash for approximately
1 minute. The light will remain on
after 1 minute. Have your tires replaced and/or TPMS system
reset as soon as possible. It is
recommended you visit a NISSAN
dealer for these services.
. Replacing tires with those not
originally specified by NISSAN
could affect the proper operation
of the TPMS.
. The TPMS sensor may be da-
maged if it is not handled cor-
rectly. Be careful when handling
the TPMS sensor.
. When replacing the TPMS sensor,
the ID registration may be re-
quired. It is recommended you
visit a NISSAN dealer for ID regis-
tration.
. Do not use a valve stem cap that
is not specified by NISSAN. The
valve stem cap may become
stuck.
. Be sure that the valve stem caps
are correctly fitted. Otherwise the
valve may be clogged up with dirt
and cause a malfunction or loss
of pressure.
. Do not install a damaged or
deformed wheel or tire even if it
has been repaired. Such wheels
or tires could have structural
damage and could fail without warning.
. The use of retread tire is not
recommended.
. For additional information re-
garding tires, refer to “Important
Tire Safety Information” (US) or
“Tire Safety Information” (Cana-
da) in the Warranty Information
Booklet.
All-Wheel Drive (AWD) models
CAUTION
.Always use tires of the same size,
brand, construction (bias, bias-
belted or radial), and tread pat-
tern on all four wheels. Failure to
do so may result in a circumfer-
ence difference between tires on
the front and rear axles which will
cause excessive tire wear and
may damage the transmission,
transfer case and rear differential
gears.
. Only use spare tires (if so
equipped) specified for each
AWD model.
Do-it-yourself8-39