2018 NISSAN QASHQAI brakes

JVS1117X
AEB emergency warning indicatorSteering-wheel-mounted controls (left
side)
AEB system warning light (on the meter
panel)
AEB WITH PEDESTRIAN DETECTION
SYSTEM OPERATION
The AEB with pedestrian detection sys-
tem will function when your vehicle is
driven at speeds above approximately 3
MPH (5 km/h).
For the pedestrian detection function, the
AEB with pedestrian detection system
operates at speeds between 6 – 37 MPH
(10 – 60 km/h).
If a risk of a forward collision is detected,
the AEB with pedestrian detection system
will firstly provide the warning to the
driver by flashing the warning (yellow) in
the vehicle information display and pro-
viding an audible alert.
If the driver applies the brakes quickly and
forcefully after the warning, and the AEB
with pedestrian detection system detects
that there is still the possibility of a
forward collision, the system will auto-
matically increase the braking force.
If the driver does not take action, the AEB
with pedestrian detection system issues
the second visual (flashing) (red) and
audible warning. If the driver releases
the accelerator pedal, then the system
applies partial braking.
If the risk of a collision becomes immi-
nent, the AEB with pedestrian detection
system applies harder braking automati-
Starting and driving5-91

5-92Starting and driving
cally.
While the AEB with pedestrian detection
system is operating, you may hear the
sound of brake operation. This is normal
and indicates that the AEB with pedes-
trian detection system is operating prop-
erly.
NOTE:
The vehicle’s stop lights come on when
braking is performed by the AEB with
pedestrian detection system.
Depending on vehicle speed and distance
to the vehicle or pedestrian ahead, as well
as driving and roadway conditions, the
system may help the driver avoid a
forward collision or may help mitigate
the consequences of a collision should
one be unavoidable.
If the driver is handling the steering
wheel, accelerating or braking, the AEB
with pedestrian detection system will
function later or will not function.
The automatic braking will cease under
the following conditions:
.When the steering wheel is turned as
far as necessary to avoid a collision.
. When the accelerator pedal is de-
pressed.
. When there is no longer a vehicle or
pedestrian detected ahead. If the AEB with pedestrian detection
system has stopped the vehicle, the
vehicle will remain at a standstill for
approximately 2 seconds before the
brakes are released.

5-106Starting and driving
BRAKING PRECAUTIONS
The brake system has two separate
hydraulic circuits. If one circuit malfunc-
tions, you will still have braking at two
wheels.
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. However, greater foot pres-
sure on the brake pedal will be required to
stop the vehicle and the stopping dis-
tance will be longer.
Using the brakes
Avoid resting your foot on the brake
pedal while driving. This will cause over-
heating of the brakes, wearing out the
brake pads faster and reduce gas mile-
age.
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.
WARNING
.While driving on a slippery sur-
face, be careful when braking,
accelerating or downshifting.
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.
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-up the brakes. Do this until
the brakes return to normal. Avoid driving
the vehicle at high speeds until the brakes
function correctly.
Parking brake break-in
Break in the parking brake shoes when-
ever the stopping effect of the parking
brake is weakened or whenever the
parking brake shoes and/or drums/ro-
tors are replaced, in order to assure the
best braking performance.
This procedure is described in the vehicle
service manual. It is recommended you
visit a NISSAN dealer for this service.
BRAKE SYSTEM

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, make sure that it is the proper
size and type as specified on
the Tire and Loading Informa-
tion label. See “Tire and Load-
ing Information 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-
tion. If the computer senses a malfunc-
Starting and driving5-107
BRAKE ASSIST

5-108Starting and driving
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.2-17).
VEHICLE DYNAMIC CONTROL (VDC) SYSTEM

WARNING
.Never rely solely on the hill start
assist system to prevent the ve-
hicle from moving backward on a
hill. Always drive carefully and
attentively. Depress the brake
pedal when the vehicle is stopped
on a steep hill. Be especially care-
ful when stopped on a hill on
frozen or muddy roads. Failure
to prevent the vehicle from rolling
backwards may result in a loss of
control of the vehicle and possi-
ble serious injury or death.
. The hill start assist system is not
designed to hold the vehicle at a
standstill on a hill. Depress the
brake pedal when the vehicle is
stopped on a steep hill. Failure to
do so may cause the vehicle to
roll backwards and may result in
a collision or serious personal
injury.
. The hill start assist system may
not prevent the vehicle from roll-
ing backwards on a hill under all
load or road conditions. Always
be prepared to depress the brake
pedal to prevent the vehicle from
rolling backwards. Failure to do so may result in a collision or
serious personal injury.
The hill start assist system automatically
keeps the brakes applied to help prevent
the vehicle from rolling backwards in the
time it takes the driver to release the
brake pedal and apply the accelerator
when the vehicle is stopped on a hill.
The hill start assist system will operate
automatically under the following condi-
tions:
. The transmission is shifted to a for-
ward or reverse gear.
. The vehicle is stopped completely on a
hill by applying the brake.
The maximum holding time is 2 seconds.
After 2 seconds the vehicle will begin to
roll back and the hill start assist system
will stop operating completely.
The hill start assist system will not
operate when the transmission is shifted
to the N (Neutral) or P (Park) position (CVT
models) or on a flat and level road.
When the Vehicle Dynamic Control (VDC)
warning light illuminates in the meter, the
hill start assist system will not operate.
(See “Vehicle Dynamic Control (VDC)
warning light” (P.2-15).)
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 or the remote
keyless entry key fob.
ANTI-FREEZE
In the winter when it is anticipated that
the outside temperature will drop below
32°F (0°C), check the anti-freeze to assure
proper winter protection. For additional
information, see “Engine cooling system”
(P.8-4).
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.8-11).
DRAINING OF COOLANT WATER
If the vehicle is to be left outside without
anti-freeze, drain the cooling system,
including the engine block. Refill before
operating the vehicle. For details, see
“Engine cooling system” (P.8-4).
Starting and driving5-113
HILL START ASSIST SYSTEM COLD WEATHER DRIVING

8 Do-it-yourself
Maintenance precautions ...................................................... 8-2
Engine compartment check locations ........................ 8-3MR20DD engine model ..................................................... 8-4
Engine cooling system ............................................................. 8-4 Checking engine coolant level .................................... 8-5
Changing engine coolant ................................................ 8-6
Engine oil ........................................................................\
..................... 8-6 Checking engine oil level ................................................. 8-6
Changing engine oil and filter ..................................... 8-6
Continuously Variable Transmission
(CVT) fluid ........................................................................\
.................... 8-9
Brake and clutch (if so equipped) fluid ....................... 8-9
Window washer fluid .............................................................. 8-10
Battery ........................................................................\
........................ 8-11 Jump starting ........................................................................\
. 8-12
Variable voltage control system ................................... 8-13
Drive belt ........................................................................\
.................. 8-13
Spark plugs ........................................................................\
............. 8-14 Replacing spark plugs ..................................................... 8-14
Air cleaner ........................................................................\
............... 8-15 Windshield wiper blades ..................................................... 8-16
Cleaning ........................................................................\
........... 8-16
Replacing ........................................................................\
........ 8-16
Rear window wiper blade .................................................. 8-17
Brakes ........................................................................\
........................ 8-17 Self-adjusting brakes ..................................................... 8-17
Brake pad wear warning ............................................ 8-17
Fuses ........................................................................\
........................... 8-18 Engine compartment .................................................... 8-18
Passenger compartment ........................................... 8-20
Key fob battery replacement .......................................... 8-21
Intelligent Key battery replacement .......................... 8-23
Lights ........................................................................\
.......................... 8-25 Headlights ........................................................................\
...... 8-25
Exterior and interior lights ........................................ 8-27
Wheels and tires ........................................................................\
8-29
Tire pressure ........................................................................\
8-29
Tire labeling ........................................................................\
.. 8-33
Types of tires ....................................................................... 8-35
Tire chains ........................................................................\
...... 8-36
Changing wheels and tires ...................................... 8-37

SDI2693
Be careful not to clog the washer nozzle. This may cause improper windshield
washer operation. If the nozzle is clogged,
remove any objects with a needle or small
pin
. Be careful not to damage the
nozzle. It is recommended you contact a NISSAN
dealer if checking or replacement is
required.
If the brakes do not operate properly, it is
recommended you have the brakes
checked by a NISSAN dealer.
SELF-ADJUSTING BRAKES
Your vehicle is equipped with self-adjust-
ing brakes.
The disc-type brakes self-adjust every
time the brake pedal is applied.
WARNING
Have your brake system checked if
the brake pedal height does not
return to normal. It is recommended
you visit a NISSAN dealer for this
service.
BRAKE PAD WEAR WARNING
The disc brake pads have audible wear
warnings. When a brake pad requires
replacement, it will make a high pitched
scraping sound when the vehicle is in
motion. This scraping sound will first
occur only when the brake pedal is
depressed. After more wear of the brake
pad, the sound will always be heard even
if the brake pedal is not depressed. Have
the brakes checked as soon as possible if
the wear warning sound is heard.
Under some driving or climate conditions,
Do-it-yourself8-17
REAR WINDOW WIPER BLADE BRAKES