brakes NISSAN SENTRA 2017 B17 / 7.G Owners Manual

For vehicles with Intelligent Key: This light blinks
when the ignition switch is placed in the LOCK
position with the key removed from the ignition
switch.
The blinking security indicator light indicates that
the security systems equipped on the vehicle are
operational.
For additional information, refer to “Security sys-
tems” in this section.
Side light and headlightindicator light (green) (if so
equipped)
The side light and headlight indicator light illumi-
nates when the side light or headlight position is
selected. For additional information, refer to
“Headlight and turn signal switch” in this section.
Slip indicator light
This indicator will blink when the Vehicle Dynamic
Control (VDC) system is operating, thus alerting
that the vehicle is nearing its traction limits. The
road surface may be slippery.
SPORT mode indicator light (ifso equipped)
This light illuminates and then turns off when the
ignition switch is placed in the ON position, and
when the SPORT mode is selected.
For additional information, refer to “Continuously
Variable Transmission (CVT)” in the “Starting and
driving” section of this manual.
Turn signal/hazard indicatorlights
The appropriate light flashes when the turn signal
switch is activated.
Both lights flash when the hazard switch is turned
on.
Vehicle Dynamic Control(VDC) OFF indicator light (if
so equipped)
This indicator light comes on when the VDC OFF
switch is pushed to the OFF position. This indi-
cates the VDC system has been turned off.
Push the VDC OFF switch again or restart the
engine and the system will operate normally. For
additional information, refer to “Vehicle Dynamic
Control (VDC) system” in the “Starting and driv-
ing” section of this manual. The VDC light also comes on when you place the
ignition switch in the ON position. The light will
turn off after about 2 seconds if the system is
operational. If the light stays on or comes on
along with the
indicator light while you are
driving, have the VDC system checked. It is rec-
ommended that you visit a NISSAN dealer for this
service.
While the VDC system is operating, you might
feel a slight vibration or hear the system working
when starting the vehicle or accelerating, but this
is normal.
AUDIBLE REMINDERS
Brake pad wear warning
The disc brake pads have audible wear warnings.
When a disc brake pad requires replacement, it
makes a high pitched scraping sound when the
vehicle is in motion, whether or not the brake
pedal is depressed. Have the brakes checked as
soon as possible if the warning sound is heard.
Key reminder chime
A chime sounds if the driver’s door is opened
while the key is left in the ignition switch. Remove
the key and take it with you when leaving the
vehicle.
Instruments and controls2-23

AVOIDING COLLISION AND
ROLLOVER
WARNING
Failure to operate this vehicle in a safe
and prudent manner may result in loss of
control or an accident.
Be alert and drive defensively at all times. Obey
all traffic regulations. Avoid excessive speed,
high speed cornering, or sudden steering ma-
neuvers, because these driving practices could
cause you to lose control of your vehicle.
As with any vehicle, loss of control could
result in a collision with other vehicles or
objects or cause the vehicle to roll over,
particularly if the loss of control causes the
vehicle to slide sideways.
Be attentive at all times, and avoid driving when
tired. Never drive when under the influence of
alcohol or drugs (including prescription or over-
the-counter drugs which may cause drowsi-
ness) . Always wear your seat belt as outlined in
the “Safety – Seats, seat belts and supplemental
restraint system” section of this manual, and also
instruct your passengers to do so.
Seat belts help reduce the risk of injury in colli-
sions and rollovers. In a rollover crash, an
unbelted or improperly belted person is significantly more likely to be injured or
killed than a person properly wearing a
seat belt.
OFF-ROAD RECOVERY
While driving, the right side or left side wheels
may unintentionally leave the road surface. If this
occurs, maintain control of the vehicle by follow-
ing the procedure below. Please note that this
procedure is only a general guide. The vehicle
must be driven as appropriate based on the con-
ditions of the vehicle, road and traffic.
1. Remain calm and do not overreact.
2. Do not apply the brakes.
3. Maintain a firm grip on the steering wheel with both hands and try to hold a straight
course.
4. When appropriate, slowly release the accel- erator pedal to gradually slow the vehicle.
5. If there is nothing in the way, steer the ve- hicle to follow the road while vehicle speed
is reduced. Do not attempt to drive the ve-
hicle back onto the road surface until vehicle
speed is reduced.
6. When it is safe to do so, gradually turn the steering wheel until both tires return to the road surface. When all tires are on the road
surface, steer the vehicle to stay in the ap-
propriate driving lane.
● If you decide that it is not safe to return the
vehicle to the road surface based on ve-
hicle, road or traffic conditions, gradually
slow the vehicle to a stop in a safe place
off the road.
RAPID AIR PRESSURE LOSS
Rapid air pressure loss or a “blow-out” can occur
if the tire is punctured or is damaged due to
hitting a curb or pothole. Rapid air pressure loss
can also be caused by driving on under-inflated
tires.
Rapid air pressure loss can affect the handling
and stability of the vehicle, especially at highway
speeds.
Help prevent rapid air pressure loss by maintain-
ing the correct air pressure and visually inspect
the tires for wear and damage. For additional
information, refer to “Wheels and tires” in the
“Do-it-yourself” section of this manual. If a tire
rapidly loses air pressure or “blows-out” while
driving, maintain control of the vehicle by follow-
ing the procedure below. Please note that this
procedure is only a general guide. The vehicle
must be driven as appropriate based on the con-
ditions of the vehicle, road and traffic.
Starting and driving5-7

WARNING
If there is a sudden loss of tire air pres-
sure, the vehicle will generally move or
pull in the direction of the flat tire. In this
situation, losing control of the vehicle may
cause a collision and result in personal
injury.
To help avoid loss of control:
●Do not rapidly apply the brakes.
● Do not rapidly release the accelerator
pedal.
● Do not rapidly turn the steering wheel.
1. Remain calm and do not overreact.
2. Maintain a firm grip on the steering wheel with both hands and try to hold a straight
course.
3. When appropriate, slowly release the accel- erator pedal to gradually slow the vehicle.
4. Gradually steer the vehicle to a safe location off the road and away from traffic if possible.
5. Lightly apply the brake pedal to gradually stop the vehicle.
6. Turn on the hazard warning flashers and contact a roadside emergency service to
change the tire. For additional information, refer to “Changing a flat tire” in the “In case
of emergency” section of this manual.DRINKING ALCOHOL/DRUGS AND
DRIVING
WARNING
Never drive under the influence of alcohol
or drugs. Alcohol in the bloodstream re-
duces coordination, delays reaction time
and impairs judgement. Driving after
drinking alcohol increases the likelihood
of being involved in an accident injuring
yourself and others. Additionally, if you
are injured in an accident, alcohol can
increase the severity of the injury.
NISSAN is committed to safe driving. However,
you must choose not to drive under the influence
of alcohol. Every year thousands of people are
injured or killed in alcohol-related collisions. Al-
though the local laws vary on what is considered
to be legally intoxicated, the fact is that alcohol
affects all people differently and most people
underestimate the effects of alcohol.
Remember, drinking and driving don’t mix! That is
true for drugs (over-the-counter, prescription)
and illegal drugs, too. Don’t drive if your ability to
operate your vehicle is impaired by alcohol,
drugs, or some other physical condition.
WARNING
Never remove or turn the key to the LOCK
position while driving. The steering wheel
will lock (for models with a steering lock
mechanism) . This may cause the driver to
lose control of the vehicle and could result
in serious vehicle damage or personal
injury.
IGNITION SWITCH (if so equipped)
5-8Starting and driving

●When the shift lever is not in the D (Drive) or
L (Low) (if so equipped) mode
● When the parking brake is applied
● When the brakes are operated by the driver
When the COAST/SET switch is pushed under
the following conditions, the system cannot be
set.
A warning chime will sound and a message will
pop up: ● When the VDC system is off (To use the ICC
system, turn on the VDC system. Push the
CRUISE ON/OFF switch to turn off the ICC
system and reset the ICC switch by pushing
the CRUISE ON/OFF switch again.)
For additional information about the VDC
system, refer to “Vehicle Dynamic Control
(VDC) system” in this section.
● When ABS or VDC is operating
● When a wheel is slipping (To use the ICC
system, make sure the wheels are no longer
slipping. Push the CRUISE ON/OFF switch
to turn off the ICC system, and reset the ICC
system by pushing the CRUISE ON/OFF
switch again.)
1System set display with vehicle ahead
2System set display without vehicle ahead
Vehicle detected ahead
When a vehicle is detected in the lane ahead, the
ICC system decelerates the vehicle by control-
ling 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. NOTE:
● The stoplights 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 detection indicator comes on. The ICC
system will also display the set speed and se-
lected distance.
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 detection indicator turns off.
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.
When a vehicle is no longer detected under
approximately 15 mph (24 km/h), the system will
be canceled.
LSD2566
5-52Starting and driving

●The system may not detect the vehicle
in front of you in certain road or weather
conditions. 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 bumper around the distance sensor
– On steep downhill roads (the vehicle may go beyond the set vehicle speed
and frequent braking may result in
overheating the brakes)
– On repeated uphill and downhill roads
– When traffic conditions make it diffi- cult to keep a proper distance be-
tween vehicles because of frequent
acceleration or deceleration
– Interference by other radar sources. ●
Do not use the ICC system if you are
towing a trailer. The system may not
detect a vehicle ahead.
● In some road or traffic conditions, a
vehicle or object can unexpectedly
come into the sensor detection zone
and cause automatic braking. Always
stay alert and avoid using the ICC sys-
tem where not recommended in this
warning section.
The radar sensor will not detect the following
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 snow or road spray from traveling
vehicles reduces the sensor’s detection.
● When excessively heavy baggage is loaded
in the rear seat or the trunk of your vehicle. The ICC system is designed to automatically
check the sensor’s operation within the limita-
tions of the system.
The detection zone of the ICC sensor is limited. A
vehicle ahead must be in the detection zone for
the vehicle-to-vehicle distance detection mode
to maintain the selected distance from the vehicle
ahead.
A vehicle ahead may move outside of the detec-
tion zone due to its position within the same lane
of travel. Motorcycles may not be detected in the
same lane ahead if they are traveling offset from
the centerline of the lane. A vehicle that is enter-
ing the lane ahead may not be detected until the
vehicle has completely moved into the lane.
If this occurs, the ICC system may warn you
by blinking the system indicator and
sounding the chime. The driver may have to
manually control the proper distance away
from vehicle traveling ahead.
Starting and driving5-57

1. Vehicle ahead detection indicator
2. FEB system warning light
FEB SYSTEM OPERATION
The FEB system will function when your vehicle is
driven at speeds above approximately 3 mph
(5 km/h).
If a risk of a forward collision is detected, the FEB
system will provide an initial warning to the driver
by both a visual and audible alert.
If the driver applies the brakes quickly and force-
fully after the warning, and the FEB system de-
tects that there is still the possibility of a forward
collision, the system will automatically increase
the braking force. If the driver does not take
action, the FEB system issues the second visual
warning (red) and audible warning and also ap-
plies partial braking.
If the risk of a collision becomes imminent, the
FEB system applies harder braking automatically.
NOTE:
The vehicle’s brake lights come on when
braking is performed by the forward emer-
gency braking system.
LSD2570
Starting and driving5-63

Depending on vehicle speed and distance to the
vehicle ahead, as well as driving and roadway
conditions, the system may help the driver avoid a
forward collision or may help mitigate the conse-
quences of a collision, should one be unavoid-
able. If the driver is handling the steering wheel,
accelerating or braking, the FEB system will func-
tion later or will not function.
The automatic braking will cease under the fol-
lowing conditions:● When the steering wheel is turned as far as
necessary to avoid a collision.
● When the accelerator pedal is depressed.
● When there is no longer a vehicle detected
ahead.
If the FEB system has stopped the vehicle, the
vehicle will remain at a standstill for approximately
2 seconds before the brakes are released.
LSD2573
5-64Starting and driving

wheel operations that could cause the power
steering system to overheat.
You may hear a sound when the steering wheel is
operated quickly. However, this is not a malfunc-
tion.
If the electric power steering warning light illumi-
nates while the engine is running, it may indicate
the power steering system is not functioning
properly and may need servicing. Have the power
steering system checked. It is recommended that
you visit a NISSAN dealer for this service.
When the electric power steering warning light
illuminates with the engine running, there will be
no power assist for the steering, but you will still
have control of the vehicle. At this time, greater
steering effort is required to operate the steering
wheel, especially in sharp turns and at low
speeds.
For additional information, refer to “Power steer-
ing warning light” in the “Instruments and con-
trols” section of this manual.The brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking at two wheels.
BRAKE PRECAUTIONS
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 pressure on the brake pedal will be
required to stop the vehicle and stopping dis-
tance will be longer.
Using the brakes
Avoid resting your foot on the brake pedal while
driving. This will overheat the brakes, wear out the
brake pads faster, and reduce gas mileage.
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 surface, be
careful when braking, accelerating or
downshifting. Abrupt braking or accel-
erating 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 the brakes, drive the vehicle at a safe
speed while lightly pressing 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 whenever the
stopping effect of the parking brake is weakened
or whenever the parking brake shoes and/or
drums/rotors are replaced, in order to assure the
best braking performance.
BRAKE SYSTEM
5-72Starting and driving

This procedure is described in the vehicle service
manual. It is recommended that you visit a
NISSAN dealer for this service.
ANTI-LOCK BRAKING SYSTEM
(ABS)
WARNING
●The ABS is a sophisticated device, but it
cannot prevent accidents resulting from
careless or dangerous driving tech-
niques. It can help maintain vehicle con-
trol during braking on slippery surfaces.
Remember that stopping distances on
slippery surfaces will be longer than on
normal surfaces even with ABS. Stop-
ping 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.
● 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
Information label. For additional in-
formation, refer to “Tire and Loading
Information label” in the “Technical
and consumer information” section
of this manual.
– For additional information, refer to “Wheels and tires” in the “Do-it-
yourself” section of this manual.
The ABS controls the brakes so the wheels do
not lock during hard braking or when braking on
slippery surfaces. The system detects the rota-
tion speed at each wheel and varies the brake
fluid pressure to prevent each wheel from locking
and sliding. By preventing each wheel from lock-
ing, the system helps the driver maintain steering
control and helps to minimize swerving and spin-
ning on slippery surfaces.
Using the system
Depress the brake pedal and hold it down. De-
press the brake pedal with firm steady pressure,
but do not pump the brakes. The ABS will oper-
ate 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 malfunc-
tion, 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. It is recommended that you visit a
NISSAN dealer for this service.
Normal operation
The ABS operates at speeds above3-6mph(5
- 10 km/h). The speed varies according to road
conditions.
Starting and driving5-73

When the ABS senses that one or more wheels
are close to locking up, the actuator rapidly ap-
plies 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 pulsation may indicate that road
conditions are hazardous and extra care is re-
quired while driving.
BRAKE ASSIST
When the force applied to the brake pedal ex-
ceeds a certain level, the brake assist is activated
generating greater braking force than a conven-
tional 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 device. it is the driv-
ers responsibility to stay alert, drive safely
and be in control of the vehicle at all times.The VDC system uses various sensors to monitor
driver inputs and vehicle motion. Under certain
driving conditions, the VDC system helps to per-
form the following functions:
● 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 control function) .
● Controls brake pressure at individual wheels
and engine output to help the driver maintain
control of the vehicle in the following condi-
tions:
– understeer (vehicle tends to not follow the steered path despite increased steer-
ing input)
– oversteer (vehicle tends to spin due to certain road or driving conditions)
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
indi-
cator in the instrument panel flashes to 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.
For additional information, refer to “Slip indicator
light” and ”VDC off indicator light” in the ”Instru-
ments and controls” section.
If a malfunction occurs in the system, the
indicator light comes on in the instrument panel.
The VDC system automatically turns off when the
indicator light is off.
The VDC OFF switch is used to turn off the VDC
system. The
indicator illuminates to indi-
cate 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
indicator flashes if this occurs. All other VDC
functions are off and the
indicator will not
flash.
VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM
5-74Starting and driving