2015 NISSAN SENTRA ECU

3. The back of the child restraint should besecured against the vehicle seatback.
If necessary, adjust or remove the head
restraint/headrest to obtain the correct child
restraint fit. If the head restraint/headrest is
removed, store it in a secure place. Be sure
to reinstall the head restraint/headrest
when the child restraint is removed. For
additional information about head
restraint/headrest adjustment, refer to
“Head restraints/headrests” in this section. If the seating position does not have an
adjustable head restraint/headrest and it is
interfering with the proper child restraint fit,
try another seating position or a different
child restraint.
4. For child restraints that are equipped withwebbing-mounted attachments, remove any
additional slack from the anchor attach-
ments. Press downward and rearward firmly
in the center of the child restraint with your
knee to compress the vehicle seat cushion
and seatback while tightening the webbing
of the anchor attachments.
5. Tighten the tether strap according to the manufacturer’s instructions to remove any
slack.
Forward-facing rigid-mounted – step 2
WRS0800
Forward-facing – step 4
LRS0671
1-28Safety—Seats, seat belts and supplemental restraint system

6. After attaching the child restraint, test it be-fore you place the child in it. Push it from side
to side while holding the child restraint near
the LATCH attachment path. The child re-
straint should not move more than 1 inch
(25 mm) , from side to side. Try to tug it
forward and check to see if the LATCH at-
tachment holds the restraint in place. If the
restraint is not secure, tighten the LATCH
attachment as necessary, or put the restraint
in another seat and test it again. You may
need to try a different child restraint. Not all
child restraints fit in all types of vehicles. 7. Check to make sure the child restraint is
properly secured prior to each use. If the
child restraint is loose, repeat steps 1
through 6.1Top tether strap
2Anchor point
Installing top tether strap
The child restraint top tether strap must be used
when installing the child restraint with the LATCH
lower anchor attachments.
First, secure the child restraint with the LATCH
lower anchors (rear outboard positions only) .
Forward-facing – step 6
WRS0697
Rear seats
LRS2627
Safety—Seats, seat belts and supplemental restraint system1-29

Rear bench seat1. Position the top tether strap
1over the
seatback.
2. Secure the tether strap to the tether anchor point
2on the rear-parcel shelf behind the
child restraint.
3. Tighten the tether strap according to the manufacturer’s instructions to remove any
slack.
If you have any questions when installing a
top tether strap, consult a NISSAN dealer
for details.
WARNING
Child restraint anchorages are designed
to withstand only those loads imposed by
correctly fitted child restraints. Under no
circumstances 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 restraint will not be properly
installed using the damaged anchorage,
and a child could be seriously injured or
killed in a collision.
FORWARD-FACING CHILD
RESTRAINT INSTALLATION USING
THE SEAT BELTS
WARNING
The three-point seat belt with Automatic
Locking Retractor (ALR) must be used
when installing a child restraint. Failure to
use the ALR mode will result in the child
restraint not being properly secured. The
restraint could tip over or be loose and
cause injury to a child in a sudden stop or
collision. Also, it can change the operation
of the front passenger air bag. For addi-
tional information, refer to “Supplemental
air bag warning light” in this section. For additional information, refer to all Warnings
and Cautions in the “Child safety” and “Child
restraint” sections of this manual before installing
a child restraint.
Do not use the lower anchors if the combined
weight of the child and the child restraint exceeds
65 lbs (29.5 kg) . If the combined weight of the
child and the child restraint is greater than 65 lbs
(29.5 kg) , use the vehicle’s seat belt (not the
lower anchors) to install the child restraint. Be
sure to follow the child restraint manufacturer’s
instructions for installation.
Forward-facing (front passenger seat) –step 1
WRS0699
1-30Safety—Seats, seat belts and supplemental restraint system

Follow these steps to install a forward-facing
child restraint using the vehicle seat belt in the
rear seats or in the front passenger seat:1. If you must install a child restraint in
the front seat, it should be placed in a
forward-facing direction only. Move
the seat to the rearmost position. Child
restraints for infants must be used in
the rear-facing direction and, there-
fore, must not be used in the front seat.
2. Position the child restraint on the seat. Al- ways follow the child restraint manufactur-
er’s instructions.
The back of the child restraint should be
secured against the vehicle seatback.
If necessary, adjust or remove the head
restraint/headrest to obtain the correct child
restraint fit. If the head restraint/headrest is
removed, store it in a secure place. Be sure
to reinstall the head restraint/headrest
when the child restraint is removed. For
additional information, refer to “Head
restraints/headrests” in this section for head
restraint/headrest adjustment, removal and
installation information. If the seating position does not have an
adjustable head restraint/headrest and it is
interfering with the proper child restraint fit,
try another seating position or a different
child restraint.
3. Route the seat belt tongue through the childrestraint and insert it into the buckle until you
hear and feel the latch engage. Be sure to
follow the child restraint manufacturer’s in-
structions for belt routing.
If the child restraint is equipped with a top
tether strap, route the top tether strap and
secure the tether strap to the tether anchor
point. For additional information, refer to “In-
stalling top tether strap” in this section. Do
not install child restraints that require the use
of a top tether strap in seating positions that
do not have a top tether anchor.
Forward-facing – step 3
WRS0680
Safety—Seats, seat belts and supplemental restraint system1-31

8. After attaching the child restraint, test it be-fore you place the child in it. Push it from side
to side while holding the child restraint near
the seat belt path. The child restraint should
not move more than 1 inch (25 mm) , from
side to side. Try to tug it forward and check
to see if the belt holds the restraint in place.
If the restraint is not secure, tighten the seat
belt as necessary, or put the restraint in
another seat and test it again. You may need
to try a different child restraint. Not all child
restraints fit in all types of vehicles. 9. Check to make sure the child restraint is
properly secured prior to each use. If the
seat belt is not locked, repeat steps 2
through 8.
10. If the child restraint is installed in the frontpassenger seat, place the ignition switch in
the ON position. The front passenger air bag
status light
should illuminate. If this
light is not illuminated, refer to “Supplemen-
tal air bag warning light” in this section.
Move the child restraint to another
seating position. Have the system
checked by a NISSAN dealer.
After the child restraint is removed and the seat
belt is fully retracted, the ALR mode (child re-
straint mode) is canceled.
Forward-facing – step 8
WRS0698
Forward-facing — step 10
WRS0475
Safety—Seats, seat belts and supplemental restraint system1-33

1Top tether strap
2Anchor point
Installing top tether strap
The child restraint top tether strap must be used
when installing the child restraint with seat belts.
First, secure the child restraint with the seat belt.Rear bench seat
1. Position the top tether strap
1over the
seatback.
2. Secure the tether strap to the tether anchor point
2on the rear-parcel shelf behind the
child restraint.
3. Tighten the tether strap according to the manufacturer’s instructions to remove any
slack.
If you have any questions when installing a
top tether strap, consult a NISSAN dealer
for details.
WARNING
Child restraint anchorages are designed
to withstand only those loads imposed by
correctly fitted child restraints. Under no
circumstances 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 restraint will not be properly
installed using the damaged anchorage,
and a child could be seriously injured or
killed in a collision.
BOOSTER SEATS
For additional information on installing a booster
seat in your vehicle, follow the instructions out-
lined in this section.
Precautions on booster seats
WARNING
If a booster seat and seat belt are not used
properly, the risk of a child being injured
or killed in a sudden stop or collision
greatly increases: – Make sure the shoulder portion of the belt is away from the child’s face
and neck and the lap portion of the
belt does not cross the stomach.
– Make sure the shoulder belt is not behind the child or under the child’s
arm.
– A booster seat must only be installed in a seating position that has a
lap/shoulder belt.
Rear seats
LRS2627
1-34Safety—Seats, seat belts and supplemental restraint system

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 vehicle is
being operated.
The instructions in this section apply to booster
seat installation in the rear seats or the front
passenger seat.
Booster seat installation
WARNING
To avoid injury to child, do not use the
lap/shoulder belt in the Automatic Lock-
ing Retractor (ALR) mode when using a
booster seat with the seat belts.
For additional information, refer to all Warnings
and Cautions in the “Child safety”, “Child re-
straints” and “Booster seats” sections of this
manual before installing a child restraint.
Follow these steps to install a booster seat in the
rear seat or in the front passenger seat: 1.
If you must install a booster seat in the
front seat, move the seat to the rear-
most position.
2. Position the booster seat on the seat. Only place it in a front-facing direction. Always
follow the booster seat manufacturer’s in-
structions. 3. The booster seat should be positioned on
the vehicle seat so that it is stable.
If necessary, adjust or remove the head
restraint/headrest to obtain the correct
booster seat fit. If the head
restraint/headrest is removed, store it in a
secure place. Be sure to reinstall the
head restraint/headrest when the
booster seat is removed. For additional
information about head restraint/headrest
adjustment, removal and installation, refer to
“Head restraints/headrests” in this section.
WRS0699
Front passenger position
LRS0454
1-36Safety—Seats, seat belts and supplemental restraint system

Status light
The front passenger seat is equipped with an
occupant classification sensor (weight sensor)
that turns the front passenger air bag on or off
depending on the weight applied to the front
passenger seat. The status of the front passen-
ger air bag (ON or OFF) is indicated by the front
passenger air bag status light
which is
located on the instrument panel.
After the ignition switch is placed in the ON
position, the front passenger air bag status light
on the instrument panel illuminates for about
7 seconds and then turns off or remains illumi-
nated depending on the front passenger seat
occupied status. The light operates as follows:
● Unoccupied front passenger’s seat:
The
light is OFF and the front passen-
ger air bag is OFF and will not inflate in a
crash.
● Front passenger seat occupied by a small
adult, child or child restraint as outlined in
this section: The
light illuminates to
indicate that the front passenger air bag is
OFF and will not inflate in a crash.
● Occupied front passenger seat and the pas-
senger meets the conditions as outlined in
this section: The
light is OFF to indi-
cate that the front passenger air bag is op-
erational. In addition to the above, certain objects placed
on the front passenger seat may also cause the
light to operate as described above depending
on their weight.
For additional information related to the normal
operation and troubleshooting of this occupant
classification sensor system, please refer to
“Normal operation” and “Troubleshooting” in this
section.
Front passenger air bag
The front passenger air bag is designed to auto-
matically turn OFF when the vehicle is operated
under some conditions as described below in
accordance with U.S. regulations. If the front
passenger air bag is OFF, it will not inflate in a
crash. The driver air bag and other air bags in your
vehicle are not part of this system.
The purpose of the regulation is to help reduce
the risk of injury or death from an inflating air bag
to certain front passenger seat occupants, such
as children, by requiring the air bag to be auto-
matically turned OFF. Certain sensors are used to
meet the requirements.
The occupant classification sensor in this vehicle
is a weight sensor. It is designed to detect an
occupant and objects on the seat by weight. For
example, if a child is in the front passenger seat,
the NISSAN Advanced Air Bag System is de- signed to turn the front passenger air bag OFF in
accordance with the regulations. Also, if a child
restraint of the type specified in the regulations is
on the seat, its weight and the child’s weight can
be detected and cause the air bag to turn OFF.
Front passenger seat adult occupants who are
properly seated and using the seat belt as out-
lined in this manual should not cause the front
passenger air bag to be automatically turned
OFF. For small adults it may be turned OFF,
however if the occupant takes his/her weight off
the seat cushion (for example, by not sitting up-
right, by sitting on an edge of the seat, or by
otherwise being out of position) , this could cause
the sensor to turn the air bag OFF. Always be
sure to be seated and wearing the seat belt
properly for the most effective protection by the
seat belt and supplemental air bag.
NISSAN recommends that pre-teens and chil-
dren be properly restrained in a rear seat.
NISSAN also recommends that appropriate child
restraints and booster seats be properly installed
in a rear seat. If this is not possible, the occupant
classification sensor is designed to operate as
described above to turn the front passenger air
bag OFF for specified child restraints as required
by the regulations. Failing to properly secure
child restraints and to use the ALR mode may
allow the restraint to tip or move in a collision or
sudden stop. This can also result in the passen-
Safety—Seats, seat belts and supplemental restraint system1-47