2021 INFINITI QX50 System failure

For descriptions specified for all-wheel drive
models, anAWDmark is placed at the begin-
ning of the applicable sections/items.
As with other vehicles with features for off-
road use, failure to operate all-wheel drive
models correctly may result in loss of control
or an accident. For additional information,
see “Driving safety precautions” (P. 5-10).
ON-PAVEMENT AND OFF-ROAD DRIVING
This vehicle will handle and maneuver dif-
ferently from an ordinary passenger car be-
cause it has a higher center of gravity for
off-road use. As with other vehicles with
features of this type, failure to operate this
vehicle correctly may result in loss of con-
trol or an accident.
For additional information, see “On- pave-
ment and off-road driving precautions”
(P. 5-8), “Avoiding collision and roll- over”
(P. 5-8) and “Driving safety precautions”
(P. 5-10).
MODIFICATION OF YOUR VEHICLE
This vehicle should not be modified. Modi-
fication could affect its performance,
safety, emissions or durability and may
even violate governmental regulations. In
addition, damage or performance problems
resulting from modifications may not be
covered under INFINITI warranties.
WARNING
Installing an aftermarket On-Board Diag-
nostic (OBD) plug-in device that uses the
port during normal driving, for example re-
mote insurance company monitoring, re-
mote vehicle diagnostics, telematics or en-
gine reprogramming, may cause
interference or damage to vehicle systems.
We do not recommend or endorse the use
of any aftermarket OBD plug-in devices,
unless specifically approved by INFINITI.
The vehicle warranty may not cover dam-
age caused by any aftermarket plug-in
device. This manual includes information for all fea-
tures and equipment available on this model.
Features and equipment in your vehicle may
vary depending on model, trim level, options
selected, order, date of production, region or
availability. Therefore, you may find informa-
tion about features or equipment that are not
included or installed on your vehicle.
All information, specifications and illustra-
tions in this manual are those in effect at the
time of printing. INFINITI reserves the right
to change specifications, performance, de-
sign or component suppliers without notice
and without obligation. From time to time,
INFINITI may update or revise this manual to
provide Owners with the most accurate in-
formation currently available. Please care-
fully read and retain with this manual all revi-
sion updates sent to you by INFINITI to
ensure you have access to accurate and up-
to-date information regarding your vehicle.
Current versions of vehicle Owner's Manuals
and any updates can also be found in the
Owner section of the INFINITI website at
https://owners.infinitiusa.com/iowners/
navigation/manualsAndGuides. If you have
questions concerning any information in your
Owner's Manual, contact INFINITI Con-
sumer Affairs. See the INFINITI CUSTOMER
CARE PROGRAM page in this Owner’s
Manual for contact information.
WHEN READING THE MANUAL

6. To return the rear bench seats to a seatingposition, push up on the seatback until it
latches in place.WARNING
Head restraints/headrests supplement the
other vehicle safety systems. They may
provide additional protection against in-
jury in certain rear end collisions. Adjust-
able head restraints/headrests must be
adjusted properly, as specified in this sec-
tion. Check the adjustment after someone
else uses the seat. Do not attach anything
to the head restraint/headrest stalk, ex-
cept for genuine INFINITI accessories spe-
cifically tested for use with the vehicle’s
head restraint/headrest stalk. Do not re-
move the head restraint/headrest. Do not
use the seat if the head restraint/headrest
has been removed. If the head restraint/
headrest was removed, reinstall and prop-
erly adjust the head restraint/headrest
before an occupant uses the seating posi-
tion. Failure to follow these instructions
can reduce the effectiveness of the head
restraints/headrests. This may increase
the risk of serious injury or death in a
collision. The illustration shows the seating positions
equipped with head restraints/headrests.

Indicates the seating position is equipped
with a head restraint.
 Indicates the seating position is equipped
with a headrest.
+ Indicates the seating position is not
equipped with a head restraint or headrest (if
applicable).
• Your vehicle is equipped with a head restraint/headrest that may be integrated,
adjustable or non-adjustable.
LRS2403
HEAD RESTRAINTS/HEADRESTS
Safety-Seats, seat belts and supplemental restraint system1-7

WARNING
• Every person who drives or rides in this
vehicle should use a seat belt at all times.
Children should be in the rear seats and in
an appropriate restraint.WARNING
• The seat belt should be properly adjusted
to a snug fit. Failure to do so may reduce
the effectiveness of the entire restraint
system and increase the chance or sever-
ity of injury in an accident. Serious injury
or death can occur if the seat belt is not
worn properly.
SSS0134SSS0016
1-12Safety-Seats, seat belts and supplemental restraint system

To increase your confidence in the seat belts,
check the operation as follows.
• Grasp the shoulder belt and pull forwardquickly. The retractor should lock and re-
strict further belt movement.
If the retractor does not lock during this
check, get the system checked. It is recom-
mended that you visit an INFINITI retailer for
this service, or to learn more about seat belt
operation.
Shoulder belt height adjustment
(front seats)
The shoulder belt anchor height should be
adjusted to the position best for you. For
additional information, see “Precautions on
seat belt usage” (P. 1-11).
To adjust, push the button and then move the
shoulder belt anchor to the desired position
so that the belt passes over the center of the
shoulder. The belt should be away from your
face and neck, but not falling off of your
shoulder. Release the adjustment button to
lock the shoulder belt anchor into position.
WARNING
• After adjustment, release the adjust-
ment button and try to move the shoul-
der belt anchor up and down to make
sure it is securely fixed in position.
• The shoulder belt anchor height should
be adjusted to the position best for you.
Failure to do so may reduce the effec-
tiveness of the entire restraint system
and increase the chance or severity of
injury in an accident.
• The shoulder belt should rest on the
middle of the shoulder. It must not rest
against the neck.
• Be sure that the seat belt is not twisted
in any way.
• Be sure that the shoulder belt anchor is
secured by trying to move the shoulder
belt anchor up and down after
adjustment.
SSS0896
AShoulder belt height adjust button
1-18Safety-Seats, seat belts and supplemental restraint system

WARNING
Never let a child stand or kneel on any seat
and do not allow a child in the cargo area.
The child could be seriously injured or killed
in a sudden stop or collision.
PRECAUTIONS ON CHILD
RESTRAINTS
WARNING
• Failure to follow the warnings and in-
structions for proper use and installation
of child restraints could result in serious
injury or death of a child or other passen-
gers in a sudden stop or collision:
– The child restraint must be used and
installed properly. Always follow all
of the child restraint manufacturer's
instructions for installation and use. –
Infants and children should never be
held on anyone's lap. Even the stron-
gest adult cannot resist the forces of
a collision.
– Do not put a seat belt around both a
child and another passenger.
– INFINITI recommends that all child
restraints be installed in the rear seat.
Studies show that children are safer
when properly restrained in the rear
seat than in the front seat. If you must
install a forward-facing child re-
straint in the front seat, see
ARS1098WRS0256
CHILD RESTRAINTS
1-22Safety-Seats, seat belts and supplemental restraint system

• Be sure to follow the child restraint manu-facturer's instructions for installation.
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. Canadian law requires the top
tether strap on forward-facing child re-
straints be secured to the designated anchor
point on the vehicle.
LATCH (Lower Anchors and
Tethers for CHildren) SYSTEM
Your vehicle is equipped with special anchor
points that are used with LATCH system
compatible child restraints. This system may
also be referred to as the ISOFIX or ISOFIX
compatible system. With this system, you do
not have to use a vehicle seat belt to secure
the child restraint unless the combined
weight of the child and child restraint exceeds
65 lbs. (29.5 kg). If the combined weight of
the child and child restraint is greater than 65
lbs. (29.5 kg), use the vehicle's seat belt (not the lower anchors) to install the child re-
straint. Be sure to follow the child restraint
manufacturer's instructions for installation.
The LATCH lower anchor points are provided
to install child restraints in the following po-
sitions only:
• Rear bench seat – outboard seating
positions
LATCH lower anchor
WARNING
Failure to follow the warnings and instruc-
tions for proper use and installation of child
restraints could result in serious injury or
death of a child or other passengers in a
sudden stop or collision:
– Attach LATCH system compatible child
restraints only at the locations shown in
the illustration.
– Do not secure a child restraint in the rear
center position using the LATCH system
anchors. The child restraint will not be
secured properly.
– Inspect the lower anchors by inserting
your fingers into the lower anchor area.
Feel to make sure there are no obstruc-
tions over the anchors such as seat belt
webbing or seat cushion material. The
LRS2990
LATCH system lower anchor locations - bench seat
1-24Safety-Seats, seat belts and supplemental restraint system

4. After attaching the child restraint, test itbefore you place the child in it. Push it
from side to side while holding the child
restraint near the LATCH attachment
path. The child restraint should not move
more than 1 inch (25 mm), from side to
side. Try to tug it forward and check to see
if the LATCH attachment holds the re-
straint in place. If the restraint is not se-
cure, tighten the LATCH attachment as
necessary, or put the restraint in another
seat and test it again. You may need to try
a different child restraint or try installing
by using the vehicle seat belt (if appli- cable). Not all child restraints fit in all types
of vehicles.
5. Check to make sure the child restraint is properly secured prior to each use. If the
child restraint is loose, repeat steps 2
through 4.
REAR-FACING CHILD
RESTRAINT INSTALLATION
USING THE SEAT BELTS
WARNING
The three-point seat belt with Automatic
Locking Retractor (ALR) must be used
when installing a child restraint. Failure to
use the ALR mode will result in the child
restraint not being properly secured. The
restraint could tip over or be loose and
cause injury to a child in a sudden stop or
collision.
For additional information, see “Child safety”
(P. 1-20) and “Child restraints” (P. 1-22) be-
fore installing a child restraint. Do not use the lower anchors if the combined
weight of the child and the child restraint
exceeds 65 lbs. (29.5 kg). If the combined
weight of the child and the child restraint is
greater than 65 lbs. (29.5 kg), use the vehi-
cle's seat belt (not the lower anchors) to in-
stall the child restraint. Be sure to follow the
child restraint manufacturer's instructions for
installation.
Follow these steps to install a rear-facing
child restraint using the vehicle seat belts in
the rear seats:
LRS0674
Rear-facing – step 4
Safety-Seats, seat belts and supplemental restraint system1-29

7. Check to make sure the child restraint isproperly secured prior to each use. If the
child restraint is loose, repeat steps 3
through 6.
FORWARD-FACING CHILD
RESTRAINT INSTALLATION
USING THE SEAT BELTS
WARNING
The three-point seat belt with Automatic
Locking Retractor (ALR) must be used
when installing a child restraint. Failure to
use the ALR mode will result in the child
restraint not being properly secured. The
restraint could tip over or be loose and
cause injury to a child in a sudden stop or
collision. Also, it can change the operation
of the front passenger air bag. For addi-
tional information, see “Front passenger
air bag and status light” (P. 1-51). For additional information, see “Child safety”
(P. 1-20) and “Child restraints” (P. 1-22) be-
fore installing a child restraint.
Do not use the lower anchors if the combined
weight of the child and the child restraint
exceeds 65 lbs. (29.5 kg). If the combined
weight of the child and the child restraint is
greater than 65 lbs. (29.5 kg), use the vehi-
cle's seat belt (not the lower anchors) to in-
stall the child restraint. Be sure to follow the
child restraint manufacturer's instructions for
installation.
Follow these steps to install a forward-facing
child restraint using the vehicle seat belt in the
rear seats or in the front passenger seat:
1.
If you must install a child restraint in the
front seat, it should be placed in a
forward-facing direction only. Move the
seat to the rearmost position. Child re-
straints for infants must be used in the
rear-facing direction and, therefore,
must not be used in the front seat.
2. Position the child restraint on the seat. Always follow the child restraint manu-
facturer’s instructions.
The back of the child restraint should be
secured against the vehicle seatback.
If necessary, adjust or remove the head
restraint/headrest to obtain the correct
child restraint fit. If the head restraint/
headrest is removed, store it in a secure
place. Be sure to reinstall the head
restraint/headrest when the child re-
straint is removed. For additional infor-
mation, see “Head restraints/headrests”
(P. 1-7).
If the seating position does not have an
adjustable head restraint/headrest and it
is interfering with the proper child re-
straint fit, try another seating position or a
different child restraint.
WRS0699
Forward-facing (front passenger seat) – step 1
1-34Safety-Seats, seat belts and supplemental restraint system