Infiniti QX50 (2019 year). Manual — part 4

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 be-

hind 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.

A.

Low back booster seat

B.

High back booster seat

Booster seats of various sizes are offered by
several manufacturers. When selecting any
booster seat, keep the following points in
mind:

∙ Choose only a booster seat with a label

certifying that it complies with Federal
Motor Vehicle Safety Standard 213 or
Canadian Motor Vehicle Safety Standard
213.

∙ Check the booster seat in your vehicle to

be sure it is compatible with the vehicle’s
seat and seat belt system.

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Safety—Seats, seat belts and supplemental restraint system

∙ Make sure the child’s head will be prop-

erly supported by the booster seat or ve-
hicle seat. The seatback must be at or
above the center of the child’s ears. For
example, if a low back booster seat is
chosen, the vehicle seatback must be at
or above the center of the child’s ears. If
the seatback is lower than the center of
the child’s ears, a high back booster seat
should be used.

∙ If the booster seat is compatible with

your vehicle, place the child in the booster
seat and check the various adjustments
to be sure the booster seat is compatible
with the child. Always follow all recom-
mended procedures.

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 be-
ing 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 Locking
Retractor (ALR) mode when using a
booster seat with the seat belts.

For additional information, refer to all Warn-
ings and Cautions in the “Child safety,” “Child
restraints” and “Booster seats” sections of
this manual before installing a child restraint.

Follow these steps to install a booster seat in
the rear seats 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 manu-
facturer’s instructions.

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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,

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 booster
seat fit, try another seating position or a
different booster seat.

4. Position the lap portion of the seat belt

low and snug on the child’s hips. Be sure
to follow the booster seat manufactur-
er’s instructions for adjusting the seat
belt routing.

5. Pull the shoulder belt portion of the seat

belt toward the retractor to take up ex-
tra slack. Be sure the shoulder belt is
positioned across the top, middle portion
of the child’s shoulder. Be sure to follow
the booster seat manufacturer’s instruc-
tions for adjusting the seat belt routing.

6. Follow the warnings, cautions and in-

structions for properly fastening a seat
belt shown in “Three-point type seat belt
with retractor” in this section.

7. If the booster seat is installed in the front

passenger seat, place the ignition switch
in the ON position. The front passenger
air bag status light

may or may not

illuminate, depending on the size of the
child and the type of booster seat being
used. For additional information, refer to
“Front passenger air bag and status
light” in this section.

Front passenger position

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Safety—Seats, seat belts and supplemental restraint system

PRECAUTIONS ON SRS

This SRS section contains important infor-
mation concerning the following systems:

∙ Driver and front passenger supplemental

front-impact air bag (INFINITI Advanced
Air Bag System)

∙ Front seat-mounted side-impact supple-

mental air bag

∙ Roof-mounted curtain side-impact and

rollover supplemental air bag

∙ Driver and passenger supplemental knee

air bag

∙ Seat belt with pretensioner(s) (front and

rear outboard seats)

Supplemental front-impact air bag system

The INFINITI Advanced Air Bag System can
help cushion the impact force to the head and
chest of the driver and front passenger in
certain frontal collisions.

Front seat-mounted side-impact supple-
mental air bag system

This system can help cushion the impact
force to the chest area of the driver and front
passenger in certain side-impact collisions.
The side air bags are designed to inflate on
the side where the vehicle is impacted.

Roof-mounted curtain side-impact and roll-
over supplemental air bag system

This system can help cushion the impact
force to the head of occupants in front and
rear outboard seating positions in certain
side-impact or rollover collisions. In a side
impact, the curtain air bags are designed to
inflate on the side where the vehicle is im-
pacted. In a rollover, the curtain air bags are
designed to inflate and remain inflated for a
short time.

The SRS is designed to supplement the crash
protection provided by the driver and front
passenger seat belts and is not a substitute
for them. Seat belts should always be cor-
rectly worn and the occupant seated a suit-
able distance away from the steering wheel,
instrument panel and door finishers. For ad-
ditional information, refer to “Seat belts” in
this section.

Driver and passenger supplemental knee air
bags

This system can help cushion the impact
force to the driver’s and front passenger’s
knees in certain collisions.

The SRS is designed to supplement the crash
protection provided by the driver and front
passenger seat belts and is not a substitute

for them. Seat belts should always be cor-
rectly worn and the occupant seated a suit-
able distance away from the steering wheel,
instrument panel and door finishers. For ad-
ditional information, refer to “Seat belts” in
this section.

The supplemental air bags operate only
when the ignition switch is placed in the ON
position.

After placing the ignition switch in the ON
position, the supplemental air bag warning
light illuminates. The supplemental air bag
warning light will turn off after about 7 sec-
onds if the system is operational.

SUPPLEMENTAL RESTRAINT
SYSTEM (SRS)

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WARNING

∙ The front air bags ordinarily will not in-

flate in the event of a side impact, rear
impact, rollover, or lower severity frontal
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 in-

flate if the passenger air bag status light
is lit. For additional information, 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 INFINITI Advanced Air Bag System, if
you are unrestrained, leaning forward,
sitting sideways or out of position 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 in-
flates. Always sit back against the seat-
back and as far away as practical from
the steering wheel or instrument panel.
Always properly 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
INFINITI Advanced Air Bag System
monitors the severity of a collision and
seat belt usage 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 wear-
ing the seat belt can increase the risk or
severity of injury in an accident. For addi-
tional information, refer to “Front pas-
senger air bag and status light” in this
section.

∙ Keep hands on the outside of the steering

wheel. Placing them inside the steering
wheel rim could increase the risk that
they are injured when the front air bag
inflates.

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Safety—Seats, seat belts and supplemental restraint system

WARNING

∙ Never let children ride unrestrained or

extend their hands or face out of the win-
dow. Do not attempt to hold them in your
lap or arms. Some examples of dangerous
riding

positions

are

shown

in

the

illustrations.

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Safety—Seats, seat belts and supplemental restraint system

WARNING

∙ Children may be severely injured or killed

when the front air bags, side air bags or
curtain air bags inflate if they are not
properly restrained. Pre-teens and chil-
dren should be properly restrained in the
rear seat, if possible.

∙ Even with the INFINITI Advanced Air

Bag System, never install a rear-facing
child restraint in the front seat. An inflat-
ing front air bag could seriously injure or
kill your child. For additional information,
refer to “Child restraints” in this section.

WARNING

Front seat-mounted side-impact supple-
mental air bags and roof-mounted curtain
side-impact and rollover supplemental air
bags:

∙ The side air bags and curtain air bags or-

dinarily will not inflate in the event of a
frontal impact, rear impact, or lower se-
verity side collision. Always wear your
seat belts to help reduce the risk or sever-
ity of injury in various kinds of accidents.

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1-47

WARNING

∙ The seat belts, the side air bags and cur-

tain air bags are most effective when you
are sitting well back and upright in the
seat with both feet on the floor. The side
air bag and curtain air bag inflate with
great force. Do not allow anyone to place
their hand, leg or face near the side air
bag on the side of the seatback of the
front seat or near the side roof rails. Do
not allow anyone sitting in the front
seats or rear outboard seats to extend
their hand out of the window or lean
against the door. Some examples of dan-
gerous riding positions are shown in the
previous illustrations.

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Safety—Seats, seat belts and supplemental restraint system

WARNING

∙ When sitting in the rear seat, do not hold

onto the seatback of the front seat. If the
side air bag inflates, you may be seriously
injured. Be especially careful with chil-
dren, who should always be properly re-
strained. Some examples of dangerous
riding

positions

are

shown

in

the

illustrations.

∙ Do not use seat covers on the front seat-

backs. They may interfere with side air
bag inflation.

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INFINITI Advanced Air Bag System
(front seats)

1. Supplemental front-impact air bag mod-

ules

2. Air bag Control Unit (ACU)

3. Occupant classification sensor (weight

sensor)

4. Front

seat-mounted

side-impact

supplemental air bag modules

5. Roof-mounted curtain side-impact and

rollover supplemental air bags

6. Roof-mounted curtain side-impact and

rollover supplemental air bag inflators

7. Satellite sensors

8. Seat belt with pretensioner(s) (front and

rear outboard seats)

9. Pressure sensors in door (driver’s side

shown; front passenger side similar)

10. Driver and passenger supplemental knee

air bag

11. Crash zone sensor

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Safety—Seats, seat belts and supplemental restraint system

WARNING

To ensure proper operation of the passen-
ger’s INFINITI 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

9.1 lbs. (4 kg) on the seatback, head
restraint/headrest or in the seatback
pocket.

∙ Make sure that there is nothing pressing

against the rear of the seatback, such as a
child restraint installed in the rear seat or
an object stored on the floor.

∙ Make sure that there is no object placed

under the front passenger seat.

∙ Make sure that there is no object placed

between the seat cushion and the center
console or between the seat cushion and
the door.

∙ 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 instrument
panel. If the child restraint does contact
the instrument panel, the system may de-
termine the seat is occupied and the pas-
senger 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.

∙ 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, get the occupant
classification system checked. It is rec-
ommended that you visit an INFINITI re-
tailer for this service.

∙ Until you have confirmed with a retailer

that your passenger seat occupant clas-
sification system is working properly, po-
sition the occupants in the rear seating
positions.

∙ 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 mal-
function has occurred and the front pas-
senger air bag status light may illuminate
and the supplemental air bag warning
light may flash.

This vehicle is equipped with the INFINITI
Advanced Air Bag System for the driver and
front passenger seats. This system is de-
signed to meet certification requirements un-
der U.S. regulations. It is also permitted in
Canada. 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 front 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 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 colli-
sions. Vehicle damage (or lack of it) is not
always an indication of proper front air bag
system operation.

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1-51

The INFINITI Advanced Air Bag System
monitors information from the crash zone
sensor, the Air bag Control Unit (ACU), seat
belt buckle sensor and occupant classifica-
tion sensor (weight sensor). Inflator opera-
tion 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 crash, depending on the crash severity
and whether the front occupants are belted
or unbelted. Additionally, the front passenger
air bag may be automatically turned off un-
der some conditions, depending on the
weight detected on the passenger seat and
how the seat belt is used. If the front passen-
ger air bag is OFF, the front passenger air
bag status light will be illuminated. For addi-
tional information, refer to “Front passenger
air bag and status light” in this section. One
front air bag inflating does not indicate im-
proper performance of the system.

If you have any questions about your air bag
system, it is recommended that you visit an
INFINITI retailer to obtain information about
the system. If you are considering modifica-
tion of your vehicle due to a disability, you
may also contact INFINITI. Contact informa-
tion 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 the release
of smoke. This smoke is not harmful and does
not indicate a fire. Care should be taken to
not 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
face 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, other than the driver and passenger
knee 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 prac-
tical away from the steering wheel or instru-
ment 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
front air bag module during inflation.

The front air bags deflate quickly after a col-
lision.

The front air bags operate only when the
ignition switch is placed in the ON position.

After placing the ignition switch in the ON
position, the supplemental air bag warning
light illuminates. The supplemental air bag
warning light will turn off after about 7 sec-
onds if the system is operational.

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Safety—Seats, seat belts and supplemental restraint system

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 con-
cerning 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 seat is equipped with an
occupant classification sensor (weight sen-
sor) 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
passenger 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 re-
mains illuminated depending on the front
passenger seat occupied status. The light op-
erates as follows:

CONDITION

DESCRIPTION

PASSENGER AIR BAG

STATUS LIGHT (

)

FRONT PASSENGER AIR BAG STATUS

Empty

Empty front passenger seat

ON (illuminated)

INHIBITED

Nobody/Somebody

Bag or Child or Child Restraint or

Small Adult in front passenger seat

ON (illuminated)

INHIBITED

Adult

Adult in the front passenger seat

OFF (dark)

ACTIVATED

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, refer to “Normal
operation” and “Troubleshooting” in this sec-
tion.

Front passenger air bag

The front passenger air bag is designed to
automatically 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.

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The purpose of the regulation is to help re-
duce the risk of injury or death from an inflat-
ing air bag to certain front passenger seat
occupants, such as children, by requiring the
air bag to be automatically turned OFF. Cer-
tain sensors are used to meet the require-
ments.

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 INFINITI Advanced
Air Bag System is designed 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
outlined 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 upright, by sitting on an edge of
the seat, or by otherwise being out of posi-
tion), 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.

INFINITI recommends that pre-teens and
children be properly restrained in a rear seat.
INFINITI 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 passenger air bag
inflating in a crash instead of being OFF. For
additional information, refer to “Child re-
straints” in this section.

If the front passenger seat is not occupied,
the front 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 de-
tected 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, con-
trary to the instructions in this manual. Al-

ways be sure that you and all vehicle occu-
pants are seated and restrained properly.

Using the front passenger air bag status light,
you can monitor when the front passenger air
bag is automatically turned OFF.

If an adult occupant is in the seat but the
front 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 or not using
the seat belt properly.

If a child restraint must be used in the front
seat, the front 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 prop-
erly and the occupant is positioned properly.
If the air bag status light is still not illumi-
nated, reposition the occupant or child re-
straint in a rear seat.

If the front passenger air bag status light will
not illuminate even though you believe that
the child restraint, the seat belts and the oc-
cupant are properly positioned, it is recom-

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Safety—Seats, seat belts and supplemental restraint system

mended that you take your vehicle to an
INFINITI retailer. An INFINITI retailer can
check system status by using a special tool.
However, until you have confirmed with a
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
front passenger air bag status light will take a
few seconds to register a change in the front
passenger seat status. This is normal system
operation and does not indicate a malfunc-
tion.

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 be
illuminated (blinking or steadily lit). Have the
system checked. It is recommended that you
visit an INFINITI retailer for this service.

Normal operation
In order for the occupant classification sen-
sor system to classify the front passenger
based on weight, please follow the precau-
tions and steps outlined below:

Precautions

∙ Make sure that there are no objects

weighing over 9.1 lbs. (4 kg) hanging on
the seat or placed in the seatback pocket.

∙ Make sure that a child restraint or other

object is not pressing against the rear of
the seatback.

∙ Make sure that a rear passenger is not

pushing or pulling on the back of the front
passenger seat.

∙ Make sure that the front passenger 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 seat.

Steps

1. Adjust the seat as outlined in the “Seats”

section of this manual. Sit upright, lean-
ing against the seatback, and centered
on the seat cushion with your feet com-
fortably extended to the floor.

2. Make sure there are no objects on your

lap.

3. Fasten the seat belt as outlined in the

“Seat belts” section of this manual. Front
passenger seat belt buckle status is
monitored by the occupant classification
system, and is used as an input to deter-
mine occupancy status. So, it is highly
recommended that the front passenger
fasten their seat belt.

4. Remain in this position for 30 seconds

allowing the system to classify the front
passenger 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 sensor
system generally keeps the classification
locked during driving, so it is important that
you confirm that the front passenger is
properly classified prior to driving. However,
the occupant classification sensor may re-
calculate the weight of the occupant under
some conditions (both while driving and
when stopped), so front passenger seat oc-
cupants 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 an adult occupying

the front passenger seat:

∙ Occupant is a small adult — the air bag

light is functioning as intended. The front
passenger air bag is suppressed.

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