INFINITI QX50 2019 Repair Manual

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
supplementthe 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 supplementthe crash
protection provided by the driver and front
passenger seat belts and is not a substitutefor 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)
Safety—Seats, seat belts and supplemental restraint system1-43

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.
WRS0031
1-44Safety—Seats, seat belts and supplemental restraint system

WARNING
∙ Never let children ride unrestrained orextend 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.
ARS1133ARS1041
Safety—Seats, seat belts and supplemental restraint system1-45

ARS1042ARS1043ARS1044
1-46Safety—Seats, seat belts and supplemental restraint system

WARNING
∙ Children may be severely injured or killedwhen 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.
ARS1045ARS1046WRS0431
Safety—Seats, seat belts and supplemental restraint system1-47

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.
LRS3042SSS0162
1-48Safety—Seats, seat belts and supplemental restraint system

WARNING
∙ When sitting in the rear seat, do not holdonto 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.
LRS3043SSS0159
Safety—Seats, seat belts and supplemental restraint system1-49

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
LRS3044
1-50Safety—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 seatto 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.
Safety—Seats, seat belts and supplemental restraint system1-51

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.
1-52Safety—Seats, seat belts and supplemental restraint system