NISSAN SENTRA 2021 Service Manual

Unfastening the seat belts
To unfasten the seat belt, press the button
on the buckle
O1. The seat belt automati-
cally retracts.
Checking seat belt operation
Seat belt retractors are designed to lock
seat belt movement by two separate
methods:
• When the seat belt is pulled quickly from the retractor
• When the vehicle slows down rapidly
To increase your confidence in the seat
belts, check the operation as follows:
• Grasp the shoulder belt and pull forward quickly. The retractor should lock and re-
strict further belt movement.
If the retractor does not lock during this
check, get the system checked. It is recom-
mended that you visit a NISSAN dealer for
this service, or to learn more about seat
belt operation.
Shoulder belt height adjustment
(front seats)
The shoulder belt anchor height should be
adjusted to the position best for you. For
additional information, refer to “Precau-
tions on seat belt usage” in this section. To
adjust, pull out the adjustment button
O1
and move the shoulder belt anchor to the
desired position
O2, so the belt passes over
the center of the shoulder. The belt should
be away from your face and neck, but not
falling off your shoulder. Release the ad-
justment button to lock the shoulder belt
anchor into position.
WRS0139LRS0242

WARNING
• Af ter adjustment, release the adjust-
ment button and try to move the
shoulder belt anchor up and down to
make sure it is securely fixed in
position.
• The shoulder belt anchor height
should be adjusted to the position
best for you. Failure to do so may re-
duce the effectiveness of the entire
restraint system and increase the
chance or severity of injury in an
accident.
SEAT BELT EXTENDERS
If, because of body size or driving position, it
is not possible to properly fit the lap/
shoulder belt and fasten it, an extender
that is compatible with the installed seat
belts is available for purchase. The ex-
tender adds approximately 8 in (200 mm)
of length and may be used for either the
driver or front passenger seating position.
It is recommended that you visit a NISSAN
dealer for assistance with purchasing an
extender if an extender is required.

WARNING
Do not allow children to play with the
seat belts. Most seating positions are
equipped with Automatic Locking Re-
tractor (ALR) mode seat belts. If the seat
belt becomes wrapped around a child’s
neck with the ALR mode activated, the
child can be seriously injured or killed if
the seat belt retracts and becomes
tight. This can occur even if the vehicle
is parked. Unbuckle the seat belt to re-
lease the child. If the seat belt cannot
be unbuckled or is already unbuckled,
release the child by cutting the seat
belt with a suitable tool (such as a knife
or scissors) to release the seat belt.
Children need adults to help protect
them. They need to be properly re-
strained.
In addition to the general information in
this manual, child safety information is
available from many other sources, includ-
ing doctors, teachers, government traffic
safety offices, and community organiza-
tions. Every child is different, so be sure to
learn the best way to transport your child. There are three basic types of child re-
straint systems:
• Rear-facing child restraints
• Forward-facing child restraints
• Booster seats
The proper restraint depends on the child's
size. Generally, infants up to about 1 year
and less than 20 lbs. (9 kg) should be placed
in rear-facing child restraints. Forward-
facing child restraints are available for chil-
dren who outgrow rear-facing child re-
straints and are at least 1 year old. Booster
seats are used to help position a vehicle
lap/shoulder belt on a child who can no
longer use a forward-facing child restraint.

INFANTS
Infants up to at least 1 year old should be
placed in a rear-facing child restraint. NISSAN
recommends that infants be placed in child
restraints that comply with Federal Motor
Vehicle Safety Standards or Canadian Motor
Vehicle Safety Standards. You should choose
a child restraint that fits your vehicle and
always follow the manufacturer's instruc-
tions for installation and use.
SMALL CHILDREN
Children that are over 1 year old and weigh at
least 20 lbs. (9 kg) should remain in a rear-
facing child restraint as long as possible up
to the height or weight limit of the child re-
straint. Children who outgrow the height or
weight limit of the rear-facing child restraint
and are at least 1 year old should be secured
in a forward-facing child restraint with a har-
ness. Refer to the manufacturer’s instruc-
tions for minimum and maximum weight
and height recommendations. NISSAN rec-
ommends that small children be placed in
child restraints that comply with Federal Mo-
tor Vehicle Safety Standards or Canadian
Motor Vehicle Safety Standards. You should
choose a child restraint that fits your vehicle
and always follow the manufacturer’s in-
structions for installation and use.
LARGER CHILDREN
Children should remain in a forward-facing
child restraint with a harness until they
reach the maximum height or weight limit
allowed by the child restraint manufac-
turer.
Once a child outgrows the height or weight
limit of the harness-equipped forward-
facing child restraint, NISSAN recommends
that the child be placed in a commercially
available booster seat to obtain proper
seat belt fit. For a seat belt to fit properly, the
booster seat should raise the child so that
the shoulder belt is properly positioned
across the chest and the top, middle por-
tion of the shoulder. The shoulder belt
should not cross the neck or face and
should not fall off the shoulder. The lap belt
should lie snugly across the lower hips or
upper thighs, not the abdomen. A booster
seat can only be used in seating positions
that have a three-point type seat belt. The
booster seat should fit the vehicle seat and
have a label certif ying that it complies with
Federal Motor Vehicle Safety Standards or
Canadian Motor Vehicle Safety Standards.A booster seat should be used until the
child can pass the seat belt fit test below:
• Are the child’s back and hips against the
vehicle seatback?
• Is the child able to sit without slouching?
• Do the child’s knees bend easily over the front edge of the seat with feet flat on the
floor?
• Can the child safely wear the seat belt (lap belt low and snug across the hips and
shoulder belt across mid-chest and
shoulder)?
• Is the child able to use the properly ad- justed head restraint/headrest?
• Will the child be able to stay in position for the entire ride?
1-22Safety-Seats, seat belts and supplemental restraint system

If you answered no to any of these ques-
tions, the child should remain in a booster
seat using a three-point type seat belt.
NOTE:
Laws in some communities may follow
different guidelines. Check local and
state regulations to confirm your child is
using the correct restraint system before
traveling.
WARNING
Never let a child stand or kneel on any
seat and do not allow a child in the
cargo area. The child could be seriously
injured or killed in a sudden stop or col-
lision.
PRECAUTIONS ON CHILD
RESTRAINTS
ARS1098
CHILD RESTRAINTS
Safety-Seats, seat belts and supplemental restraint system1-23

–Infants and children should never
be held on anyone's lap. Even the
strongest adult cannot resist the
forces of a collision.
– Do not put a seat belt around both
a child and another passenger. –
NISSAN recommends that all child
restraints be installed in the rear
seat. Studies show that children
are safer when properly re-
strained in the rear seat than in
the front seat. If you must install a
forward-facing child restraint in
the front seat, refer to “Forward-
facing child restraint installation
using the seat belts” in this
section.
– Even with the NISSAN Advanced
Air Bag System, never install a
rear-facing child restraint in the
front seat. An inflating air bag
could seriously injure or kill a child.
A rear-facing child restraint must
only be used in the rear seat.
– Be sure to purchase a child re-
straint that will fit the child and
vehicle. Some child restraints may
not fit properly in your vehicle.
– Child restraint anchorages are de-
signed to withstand only those
loads imposed by correctly fitted
child restraints. Under no circum-
stances are they to be used to at-
tach adult seat belts, or other
items or equipment to the vehicle.
Doing so could damage the child restraint anchorages. The child re-
straint will not be properly in-
stalled using the damaged an-
chorage, and a child could be
seriously injured or killed in a
collision.
– Never use the anchor points for
adult seat belts, or other items.
– A child restraint with a top tether
strap should not be used in the
front passenger seat.
– Keep seatbacks as upright as pos-
sible af ter fitting the child
restraint.
– Infants and children should al-
ways be placed in an appropriate
child restraint while in the vehicle.
• When the child restraint is not in use,
keep it secured with the LATCH sys-
tem or a seat belt. In a sudden stop or
collision, loose objects can injure oc-
cupants or damage the vehicle.
CAUTION
A child restraint in a closed vehicle can
become very hot. Check the seating
surface and buckles before placing a
child in the child restraint.
1-24Safety-Seats, seat belts and supplemental restraint system

This vehicle is equipped with a universal
child restraint anchor system, referred to
as the LATCH (Lower Anchors and Tethers
for CHildren) system. Some child restraints
include rigid or webbing-mounted attach-
ments that can be connected to these an-
chors. For additional information, refer to
“LATCH (Lower Anchors and Tethers for
CHildren) system” in this section.
If you do not have a LATCH compatible
child restraint, the vehicle seat belts can be
used.
Several manufacturers offer child re-
straints for infants and children of various
sizes. When selecting any child restraint,
keep the following points in mind:
• Choose only a restraint with a label certi-f ying that it complies with Federal Motor
Vehicle Safety Standard 213 or Canadian
Motor Vehicle Safety Standard 213.
• Check the child restraint in your vehicle to be sure it is compatible with the vehicle's
seat and seat belt system. • If the child restraint is compatible with
your vehicle, place your child in the child
restraint and check the various adjust-
ments to be sure the child restraint is
compatible with your child. Choose a
child restraint that is designed for your
child's height and weight. Always follow
all recommended procedures.
• If the combined weight of the child and child restraint is less than 65 lbs. (29.5 kg),
you may use either the LATCH anchors or
the seat belt to install the child restraint
(not both at the same time).
• If the combined weight of the child and child restraint is greater than 65 lbs. (29.5
kg), use the vehicle’s seat belt (not the
lower anchors) to install the child re-
straint.
• Be sure to follow the child restraint manufacturer’s instructions for installa-
tion.
All U.S. states and Canadian provinces or
territories require that infants and small
children be restrained in an approved
child restraint at all times while the ve-
hicle is being operated. Canadian law re-
quires the top tether strap on forward-
facing child restraints be secured to the
designated anchor point on the vehicle.
LATCH (Lower Anchors and
Tethers for CHildren) SYSTEM
Your vehicle is equipped with special an-
chor points that are used with LATCH sys-
tem compatible child restraints. This sys-
tem may also be referred to as the ISOFIX
or ISOFIX compatible system. With this sys-
tem, you do not have to use a vehicle seat
belt to secure the child restraint unless the
combined weight of the child and child re-
straint exceeds 65 lbs. (29.5 kg). If the com-
bined weight of the child and child restraint
is greater than 65 lbs. (29.5 kg) use the vehi-
cle’s seat belt (not the lower anchors) to
LRS3249
LATCH system lower anchor locations
Safety-Seats, seat belts and supplemental restraint system1-25

install the child restraint. Be sure to follow
the child restraint manufacturer’s instruc-
tions for installation.
The LATCH anchor points can be used to
install child restraints in either of the rear
outboard seating positions or in the center
rear seating position. Please refer to the
following section of this Owner’s Manual for
specific information about installing a child
restraint in the center rear seating position
using the LATCH anchors.
LATCH lower anchor
LRS3036
LATCH lower anchor location

LATCH in the center rear seating
position
There are no LATCH anchors dedicated to
the center rear seating position. However,
the inboard LATCH anchors belonging to
the two outboard seating positions (indi-
cated by the arrows) can be used together
to secure a CRS in the center rear seating
position. These anchors are separated by a
distance
OAof 16 in (404 mm). Before at-
tempting to secure a CRS in this seating
position, ensure that the CRS manufactur-
er’s instructions permit the use of LATCH
anchors with the spacing indicated above. (These are sometimes referred to as
“shared anchors” or “borrowed anchors.”)
CRS with rigid lower attachments cannot
be installed in the center seat. This type of
CRS should only be installed in the out-
board seating positions.
LRS3243LRS0661
LATCH webbing-mounted attachment
Safety-Seats, seat belts and supplemental restraint system1-27

When installing a child restraint, carefully
read and follow the instructions in this
manual and those supplied with the child
restraint.Top tether anchor point locations
LRS0662
LATCH rigid-mounted attachment
1-28Safety-Seats, seat belts and supplemental restraint system