Noise sensor NISSAN QASHQAI 2012 Owners Manual

Downloaded from www.Manualslib.com manuals search engine 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 to
maintain steering control and helps to minimise
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 pre-
vent the wheels from locking up. Steer the vehicle to
avoid obstacles.
WARNING
Do not pump the brake pedal. Doing so may in-
crease the stopping distance.
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
thevehicleatalowspeedinforwardorreverse.
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 operates
normally, but without anti-lock assistance.
If the ABS warning light illuminates during the self-
test or while driving, have the vehicle checked by a
NISSAN dealer or qualified workshop.
Normal operation
The ABS will not initiate at speeds below 5 to 10
km/h (3 to 6 MPH). The speeds will vary 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
the actuator under the bonnet when it is operating.
This is normal and indicates that the ABS is working
properly. However, the pulsation may indicate that
road conditions are hazardous and extra care is re-
quired while driving. When accelerating, driving on slippery surfaces or
suddenly avoiding obstacles on roads, the vehicle
might swerve or slip. The Electronic Stability Pro-
gramme (ESP) system continuously monitors and
compares the driver’s intended speed and the travel
direction. The system adjusts wheel brake pressure
and engine torque to assist in improving vehicle sta-
bility.
When the ESP system is operating, the “SLIP”
indicator light () in the combination meter
blinks.
When only the traction control (TCS) system in
the ESP system is operating, the “SLIP” indica-
tor light (
) in the combination meter will also
blink.
If the “SLIP” indicator light () blinks, the
road conditions are slippery. Be sure to drive
carefully. See “Warning/indicator lights and au-
dible reminders” in the “2. Instruments and
controls” section.
Indicator light
If a malfunction occurs in the system, the “SLIP”
indicator light (
) and the ESP indicator light
() come on in the combination meter.
As long as these indicator lights are on, the trac-
tion control function is cancelled.
The ESP system uses Active Brake Limited Slip
(ABLS) system to improve vehicle traction. The Ac-
tive Brake Limited Slip (ABLS) system works when
one of the driving wheels is spinning on a slippery
ELECTRONIC STABILITY
PROGRAMME (ESP) SYSTEM
(where fitted)
5-40Starting and driving