Rear brakes NISSAN SENTRA 2021 Owners Manual

•The system may not detect the ve-
hicle in front of you in certain road or
weather conditions. To avoid acci-
dents, never use the ICC system un-
der 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 ve-
hicle may go beyond the set ve-
hicle speed and frequent braking
may result in overheating the
brakes)
– On repeated uphill and downhill
roads
– When traffic conditions make it
difficult to keep a proper distance
between vehicles because of fre-
quent 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. Al-
ways stay alert and avoid using the
ICC system where not recommended
in this warning section.
The radar sensor will not detect the follow-
ing 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 ve-
hicle ahead and the system may not oper-
ate 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 automati-
cally check the sensor’s operation within
the limitations of the system.
The detection zone of the ICC sensor is
limited. A vehicle ahead must be in the de-
tection zone for the vehicle-to-vehicle dis-
tance detection mode to maintain the se-
lected distance from the vehicle ahead.
A vehicle ahead may move outside of the
detection 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 entering 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 dis-
tance away from the vehicle traveling
ahead.
Starting and driving5-69

–Objects that suddenly appear
– Thin objects such as rope, wire,
chain, etc.
• The RAB system may not operate for
the following obstacles:
– Obstacles located high off the
ground
– Obstacles in a position offset from
your vehicle
– Obstacles, such as spongy materi-
als or snow, that have sof t outer
surfaces and can easily absorb a
sound wave
• The RAB system may not operate in
the following conditions:
– There is rain, snow, ice, dirt, etc.,
attached to the sonar sensors.
– A loud sound is heard in the area
around the vehicle.
– The surface of the obstacle is di-
agonal to the rear of the vehicle.
• The RAB system may unintentionally
operate in the following conditions:
– There is overgrown grass in the
area around the vehicle. –
There is a structure (e.g., a wall, toll
gate equipment, a narrow tunnel,
a parking lot gate) near the side of
the vehicle.
– There are bumps, protrusions, or
manhole covers on the road
surface.
– The vehicle drives through a
draped flag or a curtain.
– There is an accumulation of snow
or ice behind the vehicle.
– An ultrasonic wave source, such as
another vehicle’s sonar, is near
the vehicle.
• Once the automatic brake control
operates, it does not operate again if
the vehicle approaches the same
obstacle.
• The automatic brake control can only
operate for a short period of time.
Therefore, the driver must depress
the brake pedal.
• In the following situations, the RAB
system may not operate properly or
may not function sufficiently:
– The vehicle is driven in bad
weather (rain, fog, snow, etc.).
– The vehicle is driven on a steep
hill. –
The vehicle’s posture is changed
(e.g., when driving over a bump).
– The vehicle is driven on a slippery
road.
– The vehicle is turned sharply by
turning the steering wheel fully.
– Snow chains are used.
– Wheels or tires other than NISSAN
recommended are used.
– The brakes are cold at low ambi-
ent temperatures or immediately
af ter driving has started.
– The braking force becomes poor
due to wet brakes af ter driving
through a puddle or washing the
vehicle.
• Turn the RAB system off in the follow-
ing conditions to prevent the occur-
rence of an unexpected accident re-
sulting from sudden system
operation:
– The vehicle is towed.
– The vehicle is carried on a flatbed
truck.
– The vehicle is on the chassis
dynamometer.
– The vehicle drives on an uneven
road surface.
Starting and driving5-79

If you wax the surface of the hood, be care-
ful not to let wax get into the washer nozzle
OD. This may cause clogging or improper
windshield-washer operation. If wax gets
into the nozzle, remove it with a needle or
small pin
OC. If the brakes do not operate properly, have
the brakes checked. It is recommended
that you visit a NISSAN dealer for this ser-
vice.
Self-adjusting brakes
Your vehicle is equipped with self-adjusting
brakes.
The front (and rear-if so equipped) disc-
type brakes self-adjust every time the
brake pedal is applied. The rear drum-type
brakes (if so equipped) self-adjust every
time the parking brake is applied.
LDI2731
BRAKES

Rear power windows.............2-71Rear seat.....................1-6Rear Sonar System (RSS)..........5-120Rear window and outside mirror defroster
switch..................... .2-55Rearview mirror................3-29RearView Monitor................4-9Recommended Fluids............10-2Recorders
Event Data................ .10-22Refrigerant recommendation.......10-8Registering a vehicle in another
country.................... .10-12Remote Engine Start..........3-20,5-15Reporting safety defects (US only). . . .10-20
S
Safety
Child safety rear door lock.........3-7Child seat belts.....1-23, 1-30, 1-36, 1-41Reporting safety defects (US only). .10-20Seat adjustment
Front manual seat adjustment......1-3Front power seat adjustment.......1-5Rear seat adjustment............1-6Seat beltChild safety..................1-21Infants and small children........1-22Injured person................1-15Larger children...............1-22Precautions on seat belt usage.....1-12Pregnant women..............1-15
Seat belt extenders............1-20Seat belt maintenance..........1-20Seat belts................1-12,7-7Shoulder belt height adjustment. . . .1-19Three-point type with retractor.....1-15Seat belt extenders..............1-20Seat belt warning light.........1-15,2-13Seatback pockets...............2-66SeatsAdjustment..................1-2Armrests....................1-7Front seats..................1-2Heated seats................2-62Manual front seat adjustment......1-3Rear seat.................. .1-6Security system (NISSAN Vehicle Immobilizer
System), engine start.........2-53, 5-14Security systems
Vehicle security system.........2-52Self-adjusting brakes.............8-18Service manual order form........10-22Servicing air conditioner...........4-44Shif t lock release...............5-19Shif tingContinuously Variable Transmission
(CVT)
.....................5-17Manual transmission...........5-22Shoulder belt height adjustment......1-19Siri® Eyes-Free................ .4-64Sonar
Rear system................5-120Spark plug replacement...........8-15Spark plugs...................8-15Specifications................ .10-9
Speedometer................. .2-4Speedometer and odometer........2-4Spotlights (See map light)..........2-75SRS warning label...............1-65Stability control................5-116Standard maintenance.........9-7,9-8Starting
Before starting the engine........5-14Jump starting.............6-9, 8-13Precautions when starting and
driving.................... .5-4Push starting................6-11Starting the engine............5-14Starting the engine..............5-14Starting the engine (models with NISSAN
Intelligent Key® system)...........5-14Steering
Power steering system.........5-113Steering wheel.................3-28Stop light....................8-26Storage.................... .2-66Storage tray..................2-67Sun visors....................3-28Sunglasses case...............2-68Sunglasses holder..............2-68Sunroof...................2-73,7-5Supplemental air bag warning labels. . .1-65Supplemental air bag warning
light................... .1-65, 2-14Supplemental front impact air bag
system..................... .1-52Supplemental restraint system
Information and warning labels.....1-65
11-6Index