2020 INFINITI QX50 warning light

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.
Safety—Seats, seat belts and supplemental restraint system1-53

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 isoperated 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.
LRS0865
1-54Safety—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.
1-56Safety—Seats, seat belts and supplemental restraint system

3. If the light is OFF with no front passen-ger and no objects on the front passen-
ger seat the vehicle should be checked. It
is recommended that you visit an
INFINITI retailer for this service.
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 severely
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 steer-
ing wheel and the instrument panel as-
sembly 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 passen- ger 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 cush-
ion and seatback. Such objects may inter-
fere with the proper operation of the oc-
cupant classification 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 serious personal
injury.
1-58Safety—Seats, seat belts and supplemental restraint system

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 and front passenger seated upright
as far as practical away from the side air bag.
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 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 seats. Also, do not place
any objects (an umbrella, bag, etc.) be-
tween 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 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 accidental in-
flation 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 af-
fect proper operation of the curtain air
bag systems. ∙ Tampering with the side air bag system
may result in serious personal injury. For
example, do not change the front 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 an INFINITI retailer for work on and around
the side air bag and curtain air bag. It is
also recommended that you visit an
INFINITI retailer for installation of elec-
trical equipment. The SRS wiring har-
nesses* should not be modified or discon-
nected. 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 or connectors are
yellow or orange for easy identification.
When selling your vehicle, we request that
you inform the buyer about the side air bags
and curtain air bag system and guide the
buyer to the appropriate sections in this
Owner’s Manual.
1-60Safety—Seats, seat belts and supplemental restraint system

Driver and passenger supplemental
knee air bag
The 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 colli-
sions. 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 causeabrasions 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.WARNING
∙ Do not place any objects between the
knee bolster and the driver’s or passen-
ger’s seat. Such objects may become dan-
gerous 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.
Driver’s side
LRS3037
Passenger’s side
LRS3218
Safety—Seats, seat belts and supplemental restraint system1-61

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 light
is used to indicate malfunctions in the preten-
sioner system. For additional information, re-
fer to "Supplemental air bag warning light" in
this section. If the operation of the supple-
mental air bag warning light indicates there is
a malfunction, have the system checked. It is
recommended that you visit an INFINITI re-
tailer 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.1. SRS air bag warning labels (located on
the sun visors)
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.
SUPPLEMENTAL AIR BAG
WARNING LIGHT
The supplemental air bag warning light,
displaying
in the instrument panel,
monitors the circuits for the air bag systems,
pretensioner(s) and all related wiring.
When the ignition switch is placed in the ON
position, the supplemental air bag warning
light illuminates for about 7 seconds and then
turns OFF. This means the system is opera-
tional.
WRS0885LRS0100
Safety—Seats, seat belts and supplemental restraint system1-63

If any of the following conditions occur, the
front air bag, side air bag, curtain air bag,
knee air bag and pretensioner systems need
servicing:∙ The supplemental air bag warning light remains on after approximately 7 sec-
onds.
∙ 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, curtain air bag, knee air bag or pre-
tensioner systems may not operate properly.
They must be checked and repaired. It is rec-
ommended that you visit an INFINITI retailer
for this service.
WARNING
If the supplemental air bag warning light is
on, it could mean that the front air bag, side
air bag, curtain air bag, knee air bag and/or
pretensioner systems will not operate in an
accident. To help avoid injury to yourself or
others, have your vehicle checked as soon
as possible. It is recommended that you
visit an INFINITI retailer for this service.
Repair and replacement procedure
The front air bags, side air bags, curtain air
bags, knee air bags and pretensioner(s) are
designed to inflate on a one-time-only basis.
As a reminder, unless it is damaged, the
supplemental air bag warning light remains
illuminated after inflation has occurred.
These systems should be repaired and/or re-
placed as soon as possible. It is recom-
mended that you visit an INFINITI retailer for
this service.
When maintenance work is required on the
vehicle, the front air bags, side air bags, cur-
tain air bags, knee air bags, pretensioner(s)
and related parts should be pointed out to the
person performing the maintenance. The ig-
nition 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, curtain air bag or knee air bag has inflated, the air
bag module will not function again and
must be replaced. Additionally, the acti-
vated pretensioner(s) must also be re-
placed. The air bag module and preten-
sioner(s) should be replaced. It is
recommended that you visit an INFINITI
retailer for this service. However, the air
bag module and pretensioner(s) cannot
be repaired.
∙ The front air bag, side air bag, curtain air bag, knee air bag systems and the pre-
tensioner system should be inspected if
there is any damage to the front end or
side portion of the vehicle. It is recom-
mended that you visit an INFINITI re-
tailer for this service.
∙ If you need to dispose of a supplemental air bag or pretensioner systems or scrap
the vehicle, it is recommended that you
visit an INFINITI retailer. Incorrect dis-
posal procedures could cause personal
injury.
1-64Safety—Seats, seat belts and supplemental restraint system