2021 INFINITI QX50 Owner's Manual

passenger air bag and passenger knee 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-
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
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 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 weigh- ing over 4 kg (9.1 lbs.) 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 ob-
ject 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, leaning
against the seatback, and centered on the
seat cushion with your feet comfortably
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 moni-
tored by the occupant classification sys-
tem, and is used as an input to determine
occupancy status. So, it is highly recom-
mended 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.
Safety-Seats, seat belts and supplemental restraint system1-53

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 prop-
erly classified prior to driving. However, the
occupant classification sensor may recalculate
the weight of the occupant under some condi-
tions (both while driving and when stopped),
so front passenger seat occupants should con-
tinue 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 occupyingthe front passenger seat:
• Occupant is a small adult — the air bag light is functioning as intended. The front pas-
senger air bag and passenger knee air bag
are suppressed.
However, if the occupant is not a small adult,
then this may be due to the following condi-
tions that may be interfering with the weight
sensors:
• Occupant is not sitting upright, leaning against the seatback, and centered on the
seat cushion with his/her feet comfortably
extended to the floor. • A child restraint or other object pressing
against the rear of the seatback.
• A rear passenger pushing or pulling on the back of the front passenger seat.
• Forcing the front seat or seatback against an object on the seat or floor behind it.
• An object placed under the front passenger seat.
• An object placed between the seat cushion and center console or between the seat
cushion and the door.
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 ve-
hicle and wait 1 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 person
should be advised not to ride in the front
passenger seat and the vehicle should be
checked as soon as possible. It is recom-
mended that you visit an INFINITI retailer for
this service. 2. If the light is OFF with a small adult, child
or child restraint occupying the front pas-
senger seat.
This may be due to the following condi-
tions that may be interfering with the
weight sensors:
• Small adult or child is not sitting upright, leaning against the seatback, and centered
on the seat cushion with his/her feet com-
fortably extended to the floor.
• The child restraint is not properly installed, as outlined in the “Child Restraints”
(P. 1-22) section of this manual.
• An object weighing over 4 kg (9.1 lbs.) hanging on the seat or placed in the seat-
back pocket.
• A child restraint or other object pressing against the rear of the seatback.
• A rear passenger pushing or pulling on the back of the front passenger seat.
• Forcing the front seat or seatback against an object on the seat or floor behind it.
• An object placed under the front passenger seat.
• An object placed between the seat cushion and center console.
1-54Safety-Seats, seat belts and supplemental restraint system

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 ve-
hicle and wait 1 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 OFF after this, the small
adult, child or child restraint should be repo-
sitioned in the rear seat and the vehicle
should be checked as soon as possible. It is
recommended that you visit an INFINITI re-
tailer for this service.
3. If the light is OFF with no front passengerand no objects on the front passenger
seat, the vehicle should be checked. It is
recommended that you visit an INFINITI
retailer as soon as possible.
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 be-
come dangerous projectiles and cause in-
jury if the front air bags inflate.
• 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, suspen-
sion 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 instru-
ment 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 per-
sonal 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 are not specifically designed to
assure proper air bag operation. Addi-
tionally, 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 classification sensor
(weight sensor).
Safety-Seats, seat belts and supplemental restraint system1-55

•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.
• It is recommended that you visit an
INFINITI retailer for work on and around
the front air bag. It is also recommended
that you visit an INFINITI retailer for in-
stallation of electrical equipment. The
Supplemental Restraint System (SRS)
wiring harnesses* should not be modified
or disconnected. Unauthorized 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 yel-
low 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 appropri-
ate sections in this Owner's Manual.
Front and rear outboard
seat-mounted side-impact
supplemental air bag and
roof-mounted curtain side-impact
and rollover supplemental air bag
systems
The side air bags are located in the outside of
the seatback of the front and rear outboard
seats. The curtain air bags are located in the
side roof rails. All of the information, cau-
tions and warnings in this manual 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 impact.
They are designed to inflate on the side
where the vehicle is impacted. They may not
inflate in certain side collisions.
Curtain air bags are also designed to inflate in
certain types of rollover collisions or near
rollovers. As a result, certain vehicle move-
ments (for example, during severe off-
roading) may cause the curtain air bags to
inflate.
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, fol-
lowed by the 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 pelvic area of the front and rear outboard
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
LRS3142
1-56Safety-Seats, seat belts and supplemental restraint system

injuries. However, an inflating side air bag
and curtain air bag may cause abrasions or
other injuries. Side air bags and curtain air
bags do not provide restraint to the lower
body.
The seat belts should be correctly worn and
the driver, front passenger and rear outboard
occupants seated upright as far as practical
away from the side air bag. Rear seat passen-
gers should be seated as far away as practi-
cal 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 bag
and curtain air bag inflating can increase the
risk of injury if the occupant is too close to, or
is against, these air bag modules during infla-
tion. The side air bag will deflate quickly after
the collision is over.
The curtain air bag will remain inflated for a
short time.
The side air bags and curtain air bags oper-
ate 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.WARNING
• Do not place any objects near the seat-
back of the front and rear seats. Also, do
not place any objects (an umbrella, bag,
etc.) between the front and rear door
finisher and the front and rear seat. Such
objects may become dangerous projec-
tiles and cause injury if a side air bag
inflate.
• Right after inflation, several side air bag
and 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 bag systems.
This is to prevent damage to or acciden-
tal inflation of the side air bag and cur-
tain air bag or damage to 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 af-
fect 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 and
rear seats by placing material near the
seatbacks or by installing additional trim
material, such as seat covers, around the
side air bag.
• It is recommended that you visit a
INFINITI retailer for work on and around
the side air bag and curtain air bag. It is
also recommended that you visit a
INFINITI retailer for installation of elec-
trical equipment. The SRS wiring har-
nesses* should not be modified or dis-
connected. Unauthorized electrical test
equipment and probing devices should
not be used on the side air bag or curtain
air bag system.
* The SRS wiring harness connectors are yel-
low and orange for easy identification.
When selling your vehicle, we request that
you inform the buyer about the side air bag
and curtain air bag systems and guide the
buyer to the appropriate sections in this
Owner's Manual.
Safety-Seats, seat belts and supplemental restraint system1-57

Driver and passenger supplemental
knee air bagThe knee air bag is located in the knee bolster,
on the driver’s and passenger’s side.All of the
information, cautions and warnings in this
manual apply and must be followed. The
knee air bag is designed to inflate in higher
severity frontal collisions, although it may in-
flate if the forces in another type of collision
are similar to those of a higher severity fron-
tal impact. It may not inflate in certain
collisions.
Vehicle damage (or lack of it) is not always an
indication of proper knee air bag operation. When the knee 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.
The knee air bag helps to cushion the impact
force on the knees of the driver and passen-
ger. It can help reduce serious injuries. How-
ever, an inflating knee air bag may cause
abrasions or other injuries. The knee air bag
provides restraint to the lower body.
The knee air bag inflates quickly in order to
help protect the occupants. Because of this,
the force of the knee air bag inflating can
increase the risk of injury if the occupant is
too close to, or is against, this air bag module
during inflation. The knee air bag will deflate
quickly after the collision is over OR the knee
air bag will remain inflated for a short time.
The knee air bag operates only when the ig-
nition 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.
LRS3279
Driver’s side
LRS3280
Passenger’s side
1-58Safety-Seats, seat belts and supplemental restraint system

WARNING
• Do not place any objects between the
knee bolster and the driver’s or passen-
ger’s seat. Such objects may become
dangerous projectiles and cause injury if
a knee air bag inflates.
• Right after inflation, the knee 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
knee air bag system. This is to prevent
damage to or accidental inflation of the
knee air bag system.
• Do not make unauthorized changes to
your vehicle's electrical system or sus-
pension system. This could affect proper
operation of the knee air bag system.
• Tampering with the knee air bag system
may result in serious personal injury. For
example, do not change the driver knee
bolster or install additional trim material
around the knee air bag. •
It is recommended that you visit an
INFINITI retailer for work on and around
the knee air bag. It is also recommended
that you visit an INFINITI retailer for in-
stallation of electrical equipment. The
SRS wiring harnesses* should not be
modified or disconnected. Unauthorized
electrical test equipment and probing
devices should not be used on the knee
air bag system.
*The SRS wiring harness or connectors are
yellow or orange for easy identification.
When selling your vehicle, we request that
you inform the buyer about the knee air bag
system and guide the buyer to the appropri-
ate sections in this manual.
Seat belt with pretensioner(s) (front
and rear outboard seats)
WARNING
• The pretensioner(s) cannot be reused af-
ter activation. They must be replaced to-
gether with the retractor and buckle as a
unit. •
If the vehicle becomes involved in a colli-
sion but pretensioner(s) are not acti-
vated, be sure to have the pretensioner
system checked and, if necessary, re-
placed. It is recommended that you visit
an INFINITI retailer for this service.
• No unauthorized changes should be
made to any components or wiring of the
pretensioner system. This is to prevent
damage to or accidental activation of the
pretensioner(s). Tampering with the pre-
tensioner system may result in serious
personal injury.
• It is recommended that you visit an
INFINITI retailer for work on and around
the pretensioner system. It is also recom-
mended that you visit an INFINITI re-
tailer for installation of electrical equip-
ment. Unauthorized electrical test
equipment and probing devices should
not be used on the pretensioner system.
• If you need to dispose of the pretension-
er(s) or scrap the vehicle, it is recom-
mended that you visit an INFINITI re-
tailer for this service. Incorrect disposal
procedures could cause personal injury.
Safety-Seats, seat belts and supplemental restraint system1-59

The pretensioner system may activate with
the supplemental air bag system in certain
types of collisions. Working with the seat belt
retractor, the pretensioner(s) help tighten the
seat belt when the vehicle becomes involved
in certain types of collisions, helping to re-
strain front seat occupants.
The pretensioner(s) are encased within the
seat belt retractor and to the seat belt anchor
affixed to the floor of the vehicle. These seat
belts are used the same way as conventional
seat belts.
When pretensioner(s) activate, smoke is re-
leased and a loud noise may be heard. 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.
After the pretensioner(s’) activation, load lim-
iters allow the seat belt to release webbing (if
necessary) to reduce forces against the chest.The supplemental air bag warning lightis used to indicate malfunctions in the preten-
sioner system. For additional information,
see "Supplemental air bag warning light"
(P. 1-61). If the operation of the supplemental
air bag warning light indicates there is a mal-
function, have the system checked. It is rec-
ommended that you visit an INFINITI retailer
for this service.
When selling your vehicle, we request that
you inform the buyer about the pretensioner
system and guide the buyer to the appropri-
ate sections in this Owner's Manual.
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.
WARNING
Do not use a rear-facing child restraint on a
seat protected by an air bag in front of it. If
the air bag deploys, it may cause serious
injury or death.
WRS0885
1. SRS air bag warning labels (located on the sun visors)
1-60Safety-Seats, seat belts and supplemental restraint system