2013 NISSAN ALTIMA SEDAN sensor

1. Top tether strap anchor (P. 1-23)
2. Rear seat belts (P. 1-10)
3. Roof-mounted curtain side-impactsupplemental air bag (P. 1-37)
4. Front seat-mounted side-impact
supplemental air bag (P. 1-37)
5. Head restraints (P. 1-7)
6. Front seat belts (P. 1-10)
7. Side-impact pressure sensor (driver’s
side shown; passenger’s side similar)
(P. 1-52)
8. Supplemental front-impact air bags
(P. 1-37)
9. Seats (P. 1-2)
10. Occupant classification sensor
(weight sensor) (P. 1-44)
11. Seat belt with pretensioner (P. 1-51)
12. LATCH (Lower Anchors and Tethers for
CHildren) system (P. 1-21)
See the page number indicated in paren-
theses for operating details.
LII2041
AIR BAGS, SEAT BELTS AND CHILD
RESTRAINTS
0-2Illustrated table of contents

WARNING
●The front air bags ordinarily will not
inflate in the event of a side impact, rear
impact, rollover, or lower severity fron-
tal collision. Always wear your seat
belts to help reduce the risk or severity
of injury in various kinds of accidents.
● The front passenger air bag will not
inflate if the passenger air bag status
light is lit or if the front passenger seat
is unoccupied. See “Front passenger air
bag and status light” later in this
section. ●
The seat belts and the front air bags are
most effective when you are sitting well
back and upright in the seat. The front
air bags inflate with great force. Even
with the NISSAN Advanced Air Bag Sys-
tem, if you are unrestrained, leaning
forward, sitting sideways or out of posi-
tion in any way, you are at greater risk of
injury or death in a crash. You may also
receive serious or fatal injuries from the
front air bag if you are up against it
when it inflates. Always sit back against
the seatback and as far away as practi-
cal from the steering wheel or instru-
ment panel. Always use the seat belts. ●
The driver and front passenger seat belt
buckles are equipped with sensors that
detect if the seat belts are fastened. The
Advanced Air Bag System monitors the
severity of a collision and seat belt us-
age then inflates the air bags as
needed. Failure to properly wear seat
belts can increase the risk or severity of
injury in an accident.
● The front passenger seat is equipped
with an Occupant Classification Sensor
(weight sensor) that turns the front pas-
senger air bag OFF under some condi-
tions. This sensor is only used in this
seat. Failure to be properly seated and
wearing the seat belt can increase the
risk or severity of injury in an accident.
See “Front passenger air bag and sta-
tus light” later in this section.
● Keep hands on the outside of the steer-
ing wheel. Placing them inside the
steering wheel rim could increase the
risk that they are injured when the front
air bag inflates.
WRS0031
1-38Safety—Seats, seat belts and supplemental restraint system

1. Top tether strap anchor
2. Rear seat belts
3. Roof-mounted curtain side-impactsupplemental air bag
4. Front seat-mounted side-impact supple-
mental air bag
5. Head restraints
6. Front seat belts
7. Side-impact pressure sensor (driver’s
side shown; passenger’s side similar)
8. Supplemental front-impact air bags
9. Seats
10. Occupant classification sensor (weight
sensor)
11. Seat belt with pretensioner
12. LATCH (Lower Anchors and Tethers for
CHildren) system
NISSAN Advanced Air Bag System
(front seats)
WARNING
To ensure proper operation of the passen-
ger’s advanced air bag system, please ob-
serve the following items.
●Do not allow a passenger in the rear
seat to push or pull on the seatback
pocket.
LII2041
1-44Safety—Seats, seat belts and supplemental restraint system

●Do not place heavy loads heavier than
2.2 lb (1 kg) on the seatback, head re-
straint or in the seatback pocket.
● Do not store luggage behind the seat
that can press into the seatback.
● Do not position the front passenger
seat so it contacts the rear seat. If the
front seat does contact the rear seat,
the air bag system may determine a
sensor malfunction has occurred and
the front passenger air bag status light
may illuminate and the supplemental
air bag warning light may flash.
● If a forward facing child restraint is in-
stalled in the front passenger seat, do
not position the front passenger seat so
the child restraint contacts the instru-
ment panel. If the child restraint does
contact the instrument panel, the sys-
tem may determine the seat is occupied
and the passenger air bag may deploy
in a collision. Also the front passenger
air bag status light may not illuminate.
See “Child restraints” earlier in this sec-
tion for information about installing
and using child restraints.
● Confirm the operating condition with
the front passenger air bag status light. ●
If you notice that the front passenger air
bag status light is not operating as de-
scribed later in this section, please take
your vehicle to your NISSAN dealer to
check the occupant classification
system.
● Until you have confirmed with your
dealer that your passenger seat occu-
pant classification system is working
properly, position the occupants in the
rear seating positions.
This vehicle is equipped with the NISSAN Ad-
vanced Air Bag System for the driver and front
passenger seats. This system is designed to
meet certification requirements under U.S. regu-
lations. It is also permitted in Canada. However,
all of the information, cautions and warn-
ings in this manual still apply and must be
followed.
The driver supplemental front-impact air bag is
located in the center of the steering wheel. The
passenger supplemental front-impact air bag is
mounted in the dashboard above the glove box.
The front air bags are designed to inflate in higher
severity frontal collisions, although they may in-
flate if the forces in another type of collision are
similar to those of a higher severity frontal impact.
They may not inflate in certain frontal collisions. Vehicle damage (or lack of it) is not always an
indication of proper front air bag system opera-
tion.
The NISSAN Advanced Air Bag System has dual
stage inflators. It also monitors information from
the crash zone sensor, the Air bag Control Unit
(ACU) , seat belt buckle sensors and Occupant
Classification Sensor (weight sensor) . Inflator
operation is based on the severity of a collision
and seat belt usage for the driver. For the front
passenger, the occupant classification sensors
are also monitored. Based on information from
the sensors, only one front air bag may inflate in a
crash, depending on the crash severity and
whether the front occupants are belted or un-
belted. Additionally, the front passenger air bag
may be automatically turned OFF under some
conditions, depending on the weight detected on
the passenger seat and how the seat belt is used.
If the front passenger air bag is OFF, the passen-
ger air bag status light will be illuminated (if the
seat is unoccupied, the light will not be illumi-
nated, but the air bag will be off) . See “Front
passenger air bag and status light” later in this
section for further details. One front air bag inflat-
ing does not indicate improper performance of
the system.
Safety—Seats, seat belts and supplemental restraint system1-45

Status light
The front passenger air bag status light
is
located near the climate controls. After the igni-
tion switch is placed in the ONposition, the
front passenger air bag status light on the instru-
ment panel illuminates for about 7 seconds and
then turns off or remains illuminated depending
on the front passenger seat occupied status. The
light operates as follows:
● Unoccupied passenger’s seat: The
is
OFF and the front passenger air bag is OFF
and will not inflate in a crash.
● Passenger’s seat occupied by a small adult,
child or child restraint as outlined in this
section: The
illuminates to indicate
that the front passenger air bag is OFF and
will not inflate in a crash.
● Occupied passenger seat and the passen-
ger meet the conditions outlined in this sec-
tion: The light
is OFF to indicate that
the front passenger air bag is operational.
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 sensors (weight sen-
sors) are on the seat cushion frame under the
front passenger seat and are designed to detect
an occupant and objects on the seat. For ex-
ample, if a child is in the front passenger seat, the
Advanced Air Bag System is designed to turn the
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, the
occupant classification sensors can detect it and
cause the air bag to turn OFF.
The front passenger seat belt sensor is designed
to detect if the seat belt is buckled. Based on the
weight on the seat detected by the occupant
classification sensor and the buckle state, the
Advanced Air Bag System determines whether
the front passenger air bag should be automati-
cally turned OFF as required by the regulations.
Front passenger seat adult occupants who are
properly seated and using the seat belt as out-
lined in this manual should not cause the passen-ger 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 cush-
ion (for example, by not sitting upright, 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 effec-
tive 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 an accident or
sudden stop. This can also result in the passen-
ger air bag inflating in a crash instead of being
OFF. See “Child restraints” earlier in this section
for proper use and installation.
If the front passenger seat is not occupied, the
passenger air bag is designed not to inflate in a
crash. However, heavy objects placed on the
seat could result in air bag inflation, because of
the object’s weight detected by the occupant
Safety—Seats, seat belts and supplemental restraint system1-47

classification sensor. Other conditions could also
result in air bag inflation, such as if a child is
standing on the seat, or if two children are on the
seat, contrary to the instructions in this manual.
Always be sure that you and all vehicle occupants
are seated and restrained properly.
Using the passenger air bag status light, you can
monitor when the front passenger air bag is au-
tomatically turned OFF with the seat occupied.
The light will not illuminate when the front pas-
senger seat is unoccupied.
If an adult occupant is in the seat but the passen-
ger air bag status light is illuminated (indicating
that the air bag is OFF) , it could be that the
person is a small adult, or is not sitting on the seat
properly or not using the seat belt properly.
If a child restraint must be used in the front seat,
the passenger air bag status light may or may not
be illuminated, depending on the size of the child
and the type of child restraint being used. If the air
bag status light is not illuminated (indicating that
the air bag might inflate in a crash) , it could be
that the child restraint or seat belt is not being
used properly. Make sure that the child restraint is
installed properly, the seat belt is used properly
and the occupant is positioned properly. If the air
bag status light is not illuminated, reposition the
occupant or child restraint in a rear seat.If the passenger air bag status light will not illu-
minate even though you believe that the child
restraint, the seat belts and the occupant are
properly positioned, the system may be sensing
an unoccupied seat (in which case the air bag is
OFF) . Your NISSAN dealer can check that the
system is OFF by using a special tool. However,
until you have confirmed with your dealer that
your air bag is working properly, reposition the
occupant or child restraint in a rear seat.
The NISSAN Advanced Air Bag System and
passenger air bag status light will take a few
seconds to register a change in the passenger
seat status. For example, if a large adult who is
sitting in the front passenger seat exits the ve-
hicle, the passenger air bag status light will go
from OFF to ON for a few seconds and then to
OFF. This is normal system operation and does
not indicate a malfunction.
If a malfunction occurs in the front passenger air
bag system, the supplemental air bag warning
light
, located in the meter and gauges area
of the instrument panel, will blink. Have the sys-
tem checked by a NISSAN dealer. Other supplemental front-impact air bag
precautions
WARNING
●
Do not place any objects on the steer-
ing wheel pad or on the instrument
panel. Also, do not place any objects
between any occupant and the steering
wheel or instrument panel. Such ob-
jects may become dangerous projec-
tiles and cause injury if the front air
bags inflate.
● Do not place objects with sharp edges
on the seat. Also, do not place heavy
objects on the seat that will leave per-
manent impressions in the seat. Such
objects can damage the seat or occu-
pant classification sensors (weight sen-
sors) . This can affect the operation of
the air bag system and result in serious
personal injury.
● Do not use water or acidic cleaners (hot
steam cleaners) on the seat. This can
damage the seat or occupant classifica-
tion sensors. This can also affect the
operation of the air bag system and
result in serious personal injury.
1-48Safety—Seats, seat belts and supplemental restraint system

●Immediately after inflation, several
front air bag system components will be
hot. Do not touch them; you may se-
verely burn yourself.
● No unauthorized changes should be
made to any components or wiring of
the supplemental air bag system. This is
to prevent accidental inflation of the
supplemental air bag or damage to the
supplemental air bag system.
● Do not make unauthorized changes to
your vehicle’s electrical system, sus-
pension system or front end structure.
This could affect proper operation of
the front air bag system.
● Tampering with the front air bag system
may result in serious personal injury.
Tampering includes changes to the
steering wheel and the instrument
panel assembly by placing material
over the steering wheel pad and above
the instrument panel or by installing
additional trim material around the air
bag system.
● Removing or modifying the front pas-
senger seat may affect the function of
the air bag and result in serious per-
sonal injury. ●
Modifying or tampering with the front
passenger seat may result in serious
personal injury. For example, do not
change the front seats by placing mate-
rial on the seat cushion or by installing
additional trim material, such as seat
covers, on the seat that are not specifi-
cally designed to assure proper air bag
operation. Additionally, do not stow any
objects under the front passenger seat
or the seat cushion and seatback. Such
objects may interfere with the proper
operation of the occupant classifica-
tion sensor (weight sensor) .
● No unauthorized changes should be
made to any components or wiring of
the seat belt system. This may affect the
front air bag system. Tampering with
the seat belt system may result in seri-
ous personal injury. ●
Work on and around the front air bag
system should be done by a NISSAN
dealer. Installation of electrical equip-
ment should also be done by a NISSAN
dealer. The Supplemental Restraint
System (SRS) wiring harnesses* should
not be modified or disconnected. Unau-
thorized electrical test equipment and
probing devices should not be used on
the air bag system.
● A cracked windshield should be re-
placed immediately by a qualified re-
pair facility. A cracked windshield could
affect the function of the supplemental
air bag system.
*The SRS wiring harness connectors are
yellow and orange for easy identification.
When selling your vehicle, we request that you
inform the buyer about the front air bag system
and guide the buyer to the appropriate sections
in this Owner’s Manual.
Safety—Seats, seat belts and supplemental restraint system1-49

NOTE:
Autolight activation sensitivity and the
time delay for autolight shutoff can be ad-
justed. See “Vehicle information display” in
this section.
To turn on the autolight system:1. Turn the headlight switch to the AUTO posi- tion
1.
2. Turn the ignition switch to ON.
3. The autolight system automatically turns the headlights on and off.
Initially, if the ignition switch is turned OFF and a
door is opened and left open, the headlights
remain ON for a period of time. If another door is
opened while the headlights are on, then the
timer is reset.
To turn the autolight system off, turn the switch to
the OFF,
,orposition. Be sure you do not put anything on top of
the autolight sensor located in the top side
of the instrument panel. The autolight sen-
sor controls the autolight; if it is covered,
the autolight sensor reacts as if it is dark
out and the headlights will illuminate. If
this occurs while parked with the engine
off and the ignition switch placed in the ON
position, your vehicle’s battery could be-
come discharged.
Headlight beam select
1To select the high beam function, push the
lever forward. The high beam lights come on
and the
light illuminates.
2Pull the lever back to select the low beam.
3Pulling and releasing the lever flashes the
headlight high beams on and off.
Battery saver system
If the ignition switch is placed in the OFF position
while the headlight switch is in the
orposition, the headlights will turn off after
a period of time.
LIC2318WIC1438
2-32Instruments and controls