sensor NISSAN ALTIMA 2015 L33 / 5.G Owners Manual

NISSAN Advanced Air Bag System
(front seats)
1. Top tether strap anchor
2. Roof-mounted curtain side-impact and
rollover supplemental air bag inflators
3. Rear seat belts
4. Roof-mounted curtain side-impact and
rollover supplemental air bag
5. Front seat-mounted side-impact supple-
mental air bag
6. Head restraints/headrests
7. Front seat belts
8. Side-impact pressure sensor (driver’s side
shown; passenger’s side similar)
9. Supplemental front-impact air bags
10. Seats
11. Occupant Classification Sensor (weight
sensor)
12. Seat belt with pretensioner
13. LATCH (Lower Anchors and Tethers for
CHildren) system
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1. Top tether strap anchor (P. 1-20)
2. Rear seat belts (P. 1-11)
3. Roof-mounted curtain side-impact androllover supplemental air bag (P. 1-41)
4. Front seat-mounted side-impact supple-
mental air bag (P. 1-41)
5. Head restraints/headrests (P. 1-7)
6. Front seat belts (P. 1-11)
7. Side-impact pressure sensor (driver’s
side shown; passenger’s side similar)
(P. 1-41)
8. Supplemental front-impact air bags
(P. 1-41)
9. Seats (P. 1-2)
10. Occupant classification sensor
(weight sensor) (P. 1-41)
11. Seat belt with pretensioner (P. 1-41)
12. LATCH (Lower Anchors and Tethers for
CHildren) system (P. 1-20)
Refer to the page number indicated in
parentheses for operating details.
LII2178
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. For additional informa-
tion, refer to “Front passenger air bag
and status light” 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.
For additional information, refer to
“Front passenger air bag and status
light” 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
1-42Safety—Seats, seat belts and supplemental restraint system

NISSAN Advanced Air Bag System
(front seats)
1. Top tether strap anchor
2. Roof-mounted curtain side-impact and roll-over supplemental air bag inflators
3. Rear seat belts
4. Roof-mounted curtain side-impact and roll- over supplemental air bag
5. Front seat-mounted side-impact supple- mental air bag
6. Head restraints/headrests
7. Front seat belts
8. Side-impact weight sensor (driver’s side shown; passenger’s side similar)
9. Supplemental front-impact air bags
10. Seats
11. Occupant Classification Sensor (weight sensor)
12. Seat belt with pretensioner
13. LATCH (Lower Anchors and Tethers for CHildren) system
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1-48Safety—Seats, seat belts and supplemental restraint system

WARNING
To ensure proper operation of the passen-
ger’s NISSAN Advanced Air Bag System,
please observe the following items.
●Do not allow a passenger in the rear
seat to push or pull on the seatback
pocket.
● Do not place heavy loads heavier than
2.2 lb (1 kg) on the seatback, head
restraint/headrest 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.
For additional information, refer to
“Child restraints” in this section for in-
formation 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 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 Sensor
is also monitored. Based on information from the
sensor, only one front air bag may inflate in a
Safety—Seats, seat belts and supplemental restraint system1-49

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 a 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’s seat occupied by a small
adult, child or child restraint as outlined in
the Safety section of the owner’s manual:
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
the Safety section of the owner’s manual:
The
light is OFF to indicate that the
front passenger air bag is operational.
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 ve-
hicle 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 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.
Front passenger seat adult occupants who are
properly seated and using the seat belt as outlined
in this manual should not cause the passenger air
bag to be automatically turned OFF. For small
adults it may be turned OFF, however if the occu-
pant takes his/her weight off the seat cushion (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 effective protec-
tion 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
Safety—Seats, seat belts and supplemental restraint system1-51

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-
ger air bag inflating in a crash instead of being
OFF. For additional information, refer to “Child
restraints” in this section for proper use and in-
stallation.
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
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 toOFF. 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.
Normal operation
In order for the occupant classification system to
classify the right front passenger based on
weight, please follow the precautions and steps
outlined below:
Precautions
● Make sure there are no objects weighing
over 2.2 lbs (1 kg) hanging on the seat or
placed in the seatback pocket.
●
Make sure that a child seat or other object is
not pressing against the rear of the seatback.
● Make sure that a rear passenger is not push-
ing or pulling on the back of the front pas-
senger’s seat.
● Make sure that the front seat or seatback is
not forced back against an object on the
seat or floor behind it.
● Make sure that there is no object placed
under the front passenger’s seat.
1-52Safety—Seats, seat belts and supplemental restraint system

Steps1. Adjust the seat as outlined in the “Seats” section of the Owner’s Manual. Sit upright,
leaning against the seatback, and centered
on the seat cushion with your feet comfort-
ably extended to the floor.
2. Make sure there are no objects on the occu- pant’s lap.
3. Fasten the seat belt as outlined in the “Seat belts” section of the Owner’s Manual.
4. Remain in this position for 30 seconds al- lowing the system to classify the front pas-
senger before the vehicle is put into motion.
5. Ensure proper classification by checking the front passenger air bag status light.
NOTE:
This vehicle’s occupant classification sys-
tem locks the classification during driving
so it is important that you confirm that the
front passenger is properly classified prior
to driving. Also, the occupant classification
system may recalculate the weight of the
occupant when the vehicle comes to a stop
(i.e stop light, stop sign etc.) , so front pas-
senger seat occupants should continue to
remain seated as outlined above. Troubleshooting
If you think the front passenger air bag status light
is incorrect:
1. If the light is ON with no front passenger and no objects on the front passenger seat:
This may be due to the following conditions that
may be interfering with the weight sensors: ● An object weighing over 2.2 lbs (1 kg) hang-
ing on the seat or placed in the seatback
pocket.
● A child seat or other object pressing against
the rear of the seatback.
● A rear passenger pushing or pulling on the
back of the front passenger’s seat.
● The front seat or seatback is forced back
against an object on the seat or floor behind
it.
● An object placed under the front passen-
ger’s seat.
● An object placed between the seat cushion
and center console or between door and
cushion.
If the vehicle is moving, please come to a stop
when it is safe to do so. Check and correct any of
the above conditions. Restart the vehicle and
wait one minute. NOTE:
A system check will be performed during
which the front passenger air bag status
light will remain lit for about 7 seconds
initially.
If the light is still on after this, the vehicle should
be checked by a NISSAN dealer as soon as
possible.
2. If the light is ON with an adult occupying the front passenger seat:
● Occupant is a small adult →the air bag light
is functioning as intended. The front passen-
ger air bag is suppressed.
However, if the occupant is not a small adult, then
this may be due to the following conditions that
may be interfering with the weight sensors: ● Occupant is not sitting upright, leaning
against the seatback, and centered on the
seat cushion with feet comfortably extended
to the floor.
● A child seat or other object pressing against
the rear of the seatback.
● A rear passenger pushing or pulling on the
back of the front passenger’s seat.
Safety—Seats, seat belts and supplemental restraint system1-53

●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
sensors) . This can affect the operation
of the air bag system and result in seri-
ous personal injury.
● Do not use water or acidic cleaners (hot
steam cleaners) on the seat. This can
damage the seat or Occupant Classifi-
cation Sensors. This can also affect the
operation of the air bag system and
result in serious personal injury.
● 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.
Safety—Seats, seat belts and supplemental restraint system1-55

NOTE:
Autolight activation sensitivity and the time
delay for autolight shutoff can be adjusted.
For additional information, refer to “Ve-
hicle 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
The battery saver automatically turns off the igni-
tion after a period of time when the ignition switch
is left in the ACC or ON position.
LIC2318WIC1438
2-34Instruments and controls