INFINITI EX 2013 Repair Manual

1-42Safety—Seats, seat belts and supplemental restraint system
SSS0854
1. Crash zone sensor
2. Supplemental front-impact air bag
modules (INFINITI Advanced Air Bags)
3. Front seat-mounted side-impact sup- plemental air bag modules
4. Occupant classification sensor (pat- tern sensor) 5. Occupant classification system con-
trol unit
6. Roof-mounted curtain side-impact supplemental air bags
7. Roof-mounted curtain side-impact supplemental air bag inflators 8. Air bag Control Unit (ACU)
9. Satellite sensors
10. Seat belt pretensioner
INFINITI ADVANCED AIR BAG SYS-
TEM (front seats)
This vehicle is equipped with the INFINITI
Advanced Air Bag System for the driver and
front passenger seats. This system is
designed to meet certification require-
ments under U.S. regulations. It is also
permitted in Canada.
However, all of the
information, cautions and warnings 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 instru-
ment panel above the glove box. The front
air bags are designed to inflate in higher
severity frontal collisions, although they
may inflate 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 opera-
tion.
The INFINITI Advanced Air Bag System has

dual stage air bag inflators. The system
monitors information from the crash zone
sensor, the Air bag Control Unit (ACU), the
diagnosis sensor unit, seat belt buckle
sensors and the occupant classification
sensor (pattern 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 in-
formation 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 unbelted. Addi-
tionally, the front passenger air bag may
be automatically turned OFF under some
conditions, depending on the information
provided by the occupant classification
sensor. If the front passenger air bag is
OFF, the passenger air bag status light will
be illuminated (if the seat is unoccupied,
the light will not be illuminated, 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
inflating does not indicate improper per-
formance of the system.
If you have any questions about your air
bag system, contact INFINITI or an INFINITI retailer. If you are considering modification
of your vehicle due to a disability, you may
also contact INFINITI. Contact information
is contained in the front of this Owner’s
Manual.
When a front air bag inflates, a fairly loud
noise may be heard, followed by release of
smoke. This smoke is not harmful and does
not indicate a fire. Care should be taken
not to inhale it, as it may cause irritation
and choking. Those with a history of a
breathing condition should get fresh air
promptly.
Front air bags, along with the use of seat
belts, help to cushion the impact force on
the head and chest of the front occupants.
They can help save lives and reduce
serious injuries. However, an inflating front
air bag may cause facial abrasions or other
injuries. Front air bags do not provide
restraint to the lower body.
Even with INFINITI advanced air bags, seat
belts should be correctly worn and the
driver and passenger seated upright as far
as practical away from the steering wheel
or instrument panel. The front air bags
inflate quickly in order to help protect the
front occupants. Because of this, the force
of the front air bag inflating can increase the risk of injury if the occupant is too
close to, or is against, the air bag module
during inflation.
The front air bags deflate quickly after a
collision.
The front air bags operate only when the
ignition switch is in the ON position.
After pushing the ignition switch to the ON
position, the supplemental air bag warn-
ing light illuminates. The supplemental air
bag warning light will turn off after about
7 seconds if the system is operational.
Safety
—Seats, seat belts and supplemental restraint system1-43

1-44Safety—Seats, seat belts and supplemental restraint system
SSS0676
Front passenger air bag status light
Front passenger air bag and status
light
WARNING
The front passenger air bag is designed to
automatically turn OFF under some condi-
tions. Read this section carefully to learn
how it operates. Proper use of the seat, seat
belt and child restraints is necessary for
most effective protection. Failure to follow
all instructions in this manual concerning
the use of seats, seat belts and child
restraints can increase the risk or severity of injury in an accident.
Status light:
The front passenger air bag status light
is located under the climate controls.
After the ignition switch is placed in the ON
position, the front passenger air bag status
light illuminates for about 7 seconds and
then turns off or illuminates depending on
the front passenger seat occupied status.
The light operates as follows:
. Unoccupied passenger seat: The
is
OFF and the front passenger air bag is
OFF and will not inflate in a crash.
. Passenger seat occupied by a small
adult, child or child restraint as out-
lined in this section: The
illumi-
nates to indicate that the front
passenger air bag is OFF and will not
inflate in a crash.
. Occupied passenger seat and the pas-
senger meets the conditions outlined in
this section: 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
automatically turn OFF when the vehicle is operated under some conditions as de-
scribed below as permitted by U.S. regula-
tions. 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 automatically
turned OFF.
The occupant classification sensor (pattern
sensor) is in the front passenger seat
cushion and is designed to detect an
occupant and objects on the seat. 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 sensor 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 auto-
matically turned OFF. For small adults it

may be turned OFF, however, if the
occupant does not sit in the seat properly
(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
protection by the seat belt and supple-
mental air bag.
INFINITI recommends that pre-teens and
children be properly restrained in a rear
seat. INFINITI also recommends that appro-
priate 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. Failing to
properly secure child restrains and to use
the ALR mode (child restraint mode) may
allow the restraint to tip or move in an
accident or sudden stop. This can also
result in the passenger 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 being
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 automatically turned OFF with the
seat occupied. The light will not illuminate
when the front passenger seat is unoccu-
pied.
If an adult occupant is in the seat but the
passenger air bag status light is illumi-
nated (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.
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 passenger
air bag status light is not illuminated
(indicating that the air bag might inflatein 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 passenger air bag status
light is still not illuminated, reposition the
occupant or child restraint in a rear seat.
If the passenger air bag status light will not
illuminate 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
INFINITI retailer can check that the system
is OFF by using a special tool. However,
until you have confirmed with your retailer
that your air bag is working properly,
reposition the occupant or child restraint
in a rear seat.
The INFINITI Advanced Air Bag System and
passenger air bag status light will take a
few seconds to register a change in the
passenger seat status. However, if the seat
becomes unoccupied, the air bag status
light will remain off.
If a malfunction occurs in the front
passenger air bag system, the supplemen-
tal air bag warning light
, located in the
Safety
—Seats, seat belts and supplemental restraint system1-45

1-46Safety—Seats, seat belts and supplemental restraint system
meter and gauges area will blink. Have the
system checked by an INFINITI retailer.
Other supplemental front-impact
air bag precautions
WARNING
. Do not place any objects on the steering
wheel pad or on the instrument panel.
Also, do not place any objects between
any occupant and the steering wheel or
instrument panel. Such objects may
become dangerous projectiles and cause
injury if the front air bag inflates.
. Do not place objects with sharp edges
on the seat. Also, do not place heavy
objects on the seat that will leave
permanent impressions in the seat. Such
objects can damage the seat or occupant
classification sensor (pattern sensor).
This can affect the operation of the air
bag system and result in serious perso-
nal injury.
. Do not use water or acidic cleaners (hot
steam cleaners) on the seat. This can
damage the seat or occupant classifica-
tion sensor. 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 severely
burn yourself.
. No unauthorized changes should be
made to any components or wiring of
the 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, suspen-
sion system or front end structure. This
could affect proper operation of the front
air bag system.
. Tampering with the air bag system may
result in serious personal injury. Tamper-
ing includes changes to the steering
wheel and the instrument panel assem-
bly 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 system and result in serious
personal 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
material on the seat cushion or by
installing additional trim material, such
as seat covers, on the seat that is not
specifically designed to assure proper
air bag operation. Additionally, do not
stow any objects under the front pas-
senger seat or the seat cushion and
seatback. Such objects may interfere
with the proper operation of the occu-
pant classification 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 serious
personal injury.
. Work on and around the front air bag
system should be done by an INFINITI
retailer. Installation of electrical equip-
ment should also be done by an INFINITI
retailer. The Supplemental Restraint
System (SRS) wiring harnesses* should
not be modified or disconnected. Un-
authorized electrical test equipment and
probing devices should not be used on

the air bag system.
. A cracked windshield should be replaced
immediately by a qualified repair 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 supple-
mental front air bag system and guide the
buyer to the appropriate sections in this
Owner’s Manual.
SSS0521
FRONT SEAT-MOUNTED SIDE-IM-
PACT SUPPLEMENTAL AIR BAG AND
ROOF-MOUNTED CURTAIN SIDE-IM-
PACT SUPPLEMENTAL AIR BAG SYS-
TEMS
The side air bags are located in the outside
of the seatback of the front seats. The
curtain air bags are located in the side roof
rails. These systems are designed to meet
voluntary guidelines to help reduce the risk
of injury to occupants. However, all of the
information, cautions and warnings in this
manual still apply and must be followed.
The side air bags and curtain air bags are designed to inflate in higher severity side
collisions, although they may inflate if the
forces in another type of collision are
similar to those of a higher severity side
impact. They are designed to inflate on the
side where the vehicle is impacted. They
may not inflate in certain side collisions on
the side where the vehicle is impacted.
Vehicle damage (or lack of it) is not always
an indication of proper side air bag and
curtain air bag operation.
When the side air bags and curtain air bags
inflate, a fairly loud noise may be heard,
followed by release of smoke. This smoke
is not harmful and does not indicate a fire.
Care should be taken not to inhale it, as it
may cause irritation and choking. Those
with a history of a breathing condition
should get fresh air promptly.
Side air bags, along with the use of seat
belts, help to cushion the impact force on
the chest and pelvis of the front occupants.
Curtain air bags help to cushion the impact
force to the head of occupants in the front
and rear outboard seating positions. They
can help save lives and reduce serious
injuries. However, inflating side air bags
and curtain air bags may cause abrasions
or other injuries. Side air bags and curtain
Safety
—Seats, seat belts and supplemental restraint system1-47

1-48Safety—Seats, seat belts and supplemental restraint system
air bags do not provide restraint to the
lower body.
The seat belts should be correctly worn
and the driver and passenger seated
upright as far as practical away from the
side air bags. Rear seat passengers should
be seated as far away as practical from the
door finishers and side roof rails. The side
air bags and curtain air bags inflate quickly
in order to help protect the occupants.
Because of this, the force of the side air
bags and curtain air bags inflating can
increase the risk of injury if the occupant is
too close to, or is against, these air bag
modules during inflation. The side air bags
and curtain air bags will deflate quickly
after the collision is over.
The side air bags and curtain air bags
operate only when the ignition switch is in
the ON position.
After pushing the ignition switch to the ON
position, the supplemental air bag warn-
ing light illuminates. The air bag warning
light will turn off after about 7 seconds if
the systems are operational.
WARNING
. Do not place any objects near the
seatback of the front seats. Also, do
not place any objects (an umbrella, bag,
etc.) between the front door finisher and
the front seat. Such objects may become
dangerous projectiles and cause injury if
a side air bag inflates.
. Right after inflation, several front seat-
mounted side air bags and roof-mounted
curtain air bag system components will
be hot. Do not touch them; you may
severely burn yourself.
. No unauthorized changes should be
made to any components or wiring of
the side air bag and curtain air bags.
This is to prevent damage to or acci-
dental inflation of the side air bag and
curtain air bag systems.
. Do not make unauthorized changes to
your vehicle’s electrical system, suspen-
sion system or side panel. This could
affect proper operation of the side air
bag and curtain air bag systems.
. Tampering with the side air bag system
may result in serious personal injury. For
example, do not change the front seat by placing material near the seatback or by
installing additional trim material, such
as seat covers, around the side air bag.
. Work around and on the side air bag and
curtain air bag systems should be done
by an INFINITI retailer. Installation of
electrical equipment should also be
done by an INFINITI retailer. The Supple-
mental Restraint System (SRS) wiring
harnesses* should not be modified or
disconnected. Unauthorized electrical
test equipment and probing devices
should not be used on the side air bag
or curtain air bag systems.
* 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 side-impact
air bag and curtain side-impact air bag
system and guide the buyer to the appro-
priate sections in this Owner’s Manual.

SEAT BELTS WITH PRETENSIONERS
(front seats)
WARNING
.The pretensioners cannot be reused after
activation. They must be replaced to-
gether with the retractor and buckle as a
unit.
. If the vehicle becomes involved in a
collision but a pretensioner is not
activated, be sure to have the preten-
sioner system checked and, if necessary,
replaced by an INFINITI retailer.
. No unauthorized changes should be
made to any components or wiring of
the pretensioner system. This is to
prevent damage to or accidental activa-
tion of the pretensioners. Tampering
with the pretensioner system may result
in serious personal injury.
. Work around and on the pretensioner
system should be done by an INFINITI
retailer. Installation of electrical equip-
ment should also be done by an INFINITI
retailer. Unauthorized electrical test
equipment and probing devices should
not be used on the pretensioner system. .
If you need to dispose of the preten-
sioner or scrap the vehicle, contact an
INFINITI retailer. Correct pretensioner
disposal procedures are set forth in the
appropriate INFINITI Service Manual.
Incorrect disposal procedures could
cause personal injury.
The pretensioner system may activate with
the supplemental air bag system in certain
types of collisions. Working with the seat
belt retractor, it helps tighten the seat belt
when the vehicle becomes involved in
certain types of collisions, helping to
restrain front seat occupants.
The pretensioner is encased with the seat
belt retractor. These seat belts are used the
same way as conventional seat belts.
When a pretensioner activates, smoke is
released and a loud noise may be heard.
The smoke is not harmful, and it does not
indicate a fire. Care should be taken not to
inhale it as it may cause irritation and
choking. Those with a history of a breath-
ing condition should get fresh air promptly.
After pretensioner activation, load limiters
allow the seat belt to release webbing (if
necessary) to reduce forces against the
chest. The supplemental air bag warning light
is used to indicate malfunctions in the
pretensioner system. (See “Supplemental
air bag warning light” later in this section
for more details.) If the operation of the
supplemental air bag warning light indi-
cates there is a malfunction, have the
system checked by an INFINITI retailer.
When selling your vehicle, we request that
you inform the buyer about the preten-
sioner system and guide the buyer to the
appropriate sections in this Owner’s Man-
ual.
Safety —Seats, seat belts and supplemental restraint system1-49

1-50Safety—Seats, seat belts and supplemental restraint system
SSS1016
SUPPLEMENTAL AIR BAG WARNING
LABELS
Warning labels about the supplemental
front-impact air bag systems are placed in
the vehicle as shown in the illustration.
SRS air bag
The warning labels*1are located on the
surface of the sun visors.
SPA1097
SUPPLEMENTAL AIR BAG WARNING
LIGHT
The supplemental air bag warning light,
displayingin the instrument panel,
monitors the circuits for the air bag
systems, pretensioners and all related
wiring.
When the ignition switch is in the ON
position, the supplemental air bag warning
light illuminates for about 7 seconds and
then turns off. This means the system is
operational.
If any of the following conditions occur, the
front air bag, side air bag, curtain air bag and pretensioner systems need servicing:
.
The supplemental air bag warning light
remains on approximately 7 seconds
after the ignition switch is pushed to
the ON position.
. The supplemental air bag warning light
flashes intermittently.
. The supplemental air bag warning light
does not come on at all.
Under these conditions, the front air bag,
side air bag, and curtain air bag or
pretensioner systems may not operate
properly. They must be checked and
repaired. Take your vehicle to the nearest
INFINITI retailer.WARNING
If the supplemental air bag warning light is
on, it could mean that the front air bag, side
air bag, curtain air bag and/or pretensioner
systems will not operate in an accident. To
help avoid injury to yourself or others, have
your vehicle checked by an INFINITI retailer
as soon as possible.

REPAIR AND REPLACEMENT PROCE-
DURE
The front air bags, side air bags, curtain air
bags and pretensioners are designed to
activate on a one-time-only basis. As a
reminder, unless it is damaged, the sup-
plemental air bag warning light will remain
illuminated after inflation has occurred.
Repair and replacement of these systems
should be done only by an INFINITI retailer.
When maintenance work is required on the
vehicle, the front air bags, side air bags,
curtain air bags, pretensioners and related
parts should be pointed out to the person
conducting the maintenance. The ignition
switch should always be in the LOCK
position when working under the hood or
inside the vehicle.
WARNING
.Once a front air bag, side air bag or
curtain air bag has inflated, the air bag
module will not function again and must
be replaced. Additionally, the activated
pretensioner must also be replaced. The
air bag module and pretensioner system
should be replaced by an INFINITI retailer. The air bag module and preten-
sioner system cannot be repaired.
. The front air bag, side air bag, curtain air
bag systems and the pretensioner sys-
tem should be inspected by an INFINITI
retailer if there is any damage to the
front end or side portion of the vehicle.
. If you need to dispose of a supplemental
air bag or pretensioner systems or scrap
the vehicle, contact an INFINITI retailer.
Correct supplemental air bag and pre-
tensioner system disposal procedures
are set forth in the appropriate INFINITI
Service Manual. Incorrect disposal pro-
cedures could cause personal injury.
Safety —Seats, seat belts and supplemental restraint system1-51