2021 INFINITI QX50 System failure

WARNING
• The front air bags ordinarily will not in-
flate in the event of a side impact, rear
impact, rollover, or lower severity fron-
tal collision. Always wear your seat belts
to help reduce the risk or severity of in-
jury in various kinds of accidents.
• The front passenger air bag and passen-
ger knee air bag will not inflate if the
passenger air bag status light is lit. For
additional information, see “Front pas-
senger air bag and status light” (P. 1-51). •
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 and passenger knee air
bag OFF under some conditions. This
sensor is only used in this seat. Failure to
be properly seated and wearing the seat
belt can increase the risk or severity of
injury in an accident. For additional in-
formation, see “Front passenger air bag
and status light” (P. 1-51).
• Keep hands on the outside of the steer-
ing wheel. Placing them inside the steer-
ing wheel rim could increase the risk that
they are injured when the front air bag
inflates.
WRS0031
1-42Safety-Seats, seat belts and supplemental restraint system

Front passenger air bag and status light
WARNING
The front passenger air bag and passenger
knee air bag are designed to automatically
turn OFF under some conditions. 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 instruc-
tions in this manual concerning 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
and passenger knee air bag on or off depend-
ing on the weight applied to the front passen-
ger seat. The status of the front passenger air
bag and passenger knee 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 AND PASSENGER KNEE 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, see “Normal op-
eration” (P. 1-53) and “Troubleshooting”
(P. 1-54).
LRS0865
Safety-Seats, seat belts and supplemental restraint system1-51

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
activated pretensioner(s) must also be
replaced. The air bag module and preten-
sioner(s) should be replaced. It is recom-
mended that you visit an INFINITI re-
tailer 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. •
If there is an impact to your vehicle from
any direction, your Occupant Classifica-
tion Sensor (OCS) should be checked to
verify it is still functioning correctly. It is
recommended that you visit an INFINITI
retailer for this service. The OCS should
be checked even if no air bags deploy as a
result of the impact. Failure to verify
proper OCS function may result in an im-
proper air bag deployment resulting in
injury or death.
1-62Safety-Seats, seat belts and supplemental restraint system

Low tire pressure warning
If the vehicle is being driven with low tire
pressure, the warning light will illuminate. A
“Tire Pressure Low - Add Air” warning also
appears in the vehicle information display.
When the low tire pressure warning light il-
luminates, you should stop and adjust the
tire pressure of all four tires to the recom-
mended COLD tire pressure shown on the
Tire and Loading Information label located in
the driver's door opening. The low tire pres-
sure warning light does not automatically
turn off when the tire pressure is adjusted.
After the tire is inflated to the recommended
pressure, the vehicle must be driven at
speeds above 16 mph (25 km/h) to activate
the TPMS and turn off the low tire pressure
warning light. Use a tire pressure gauge to
check the tire pressure.
The “Tire Pressure Low - Add Air” warning
appears each time the ignition switch is
placed in the ON position as long as the low
tire pressure warning light remains
illuminated.
For additional information, see “Vehicle in-
formation display” (P. 2-19) and “Tire Pres-
sure Monitoring System (TPMS)” (P. 5-5) and
(P. 6-3).
TPMS malfunction
If the TPMS is not functioning properly, the
low tire pressure warning light will flash for
approximately 1 minute when the ignition
switch is placed in the ON position. The light
will remain on after 1 minute. Have the sys-
tem checked. It is recommended that you visit
an INFINITI retailer for this service. The "Tire
Pressure Low — Add Air" warning does not
appear if the low tire pressure warning light
illuminates to indicate a TPMS malfunction.
For additional information, see “Tire Pressure
Monitoring System (TPMS)” (P. 5-5) and “Tire
pressure” (P. 8-27).
WARNING
• Radio waves could adversely affect elec-
tric medical equipment. Those who use a
pacemaker should contact the electric
medical equipment manufacturer for the
possible influences before use.
• If the light does not illuminate with the
ignition switch placed in the ON position,
have the vehicle checked as soon as pos-
sible. It is recommended that you visit an
INFINITI retailer for this service. •
If the light illuminates while driving,
avoid sudden steering maneuvers or
abrupt braking, reduce vehicle speed,
pull off the road to a safe location and
stop the vehicle as soon as possible. Driv-
ing with under-inflated tires may perma-
nently damage the tires and increase the
likelihood of tire failure. Serious vehicle
damage could occur and may lead to an
accident and could result in serious per-
sonal injury or death. Check the tire pres-
sure for all four tires. Adjust the tire
pressure to the recommended COLD tire
pressure show on the Tire and Loading
Information label located in the driver’s
door opening to turn the low tire pres-
sure warning light OFF. If the light still
illuminates while driving after adjusting
the tire pressure, a tire may be flat or the
TPMS may be malfunctioning. If you
have a flat tire, replace it with a replace-
ment tire as soon as possible. If no tire is
flat and all tires are properly inflated,
have the vehicle checked. It is recom-
mended that you visit an INFINITI re-
tailer for this service.
2-14Instruments and controls

Adaptive Front lighting System
(AFS) (if so equipped)
The Adaptive Front lighting System (AFS) will
automatically adjust the headlights (low
beam) toward the turning direction to im-
prove the driver’s view. When the headlight
switch is ON and the driver operates the
steering wheel in a turn, the AFS system will
be activated.
The AFS will operate:
• when the headlight switch is ON.
• when the shift lever is in any position otherthan P (Park) or R (Reverse).
• when the vehicle is driven at above 16 mph (25 km/h) for the left-side headlight. Note
that the right-side low beam headlight will
swivel but the left side will not swivel when
the vehicle is at a stop and the steering
wheel is turned. The vehicle must attain a
speed above 16 mph (25 km/h) before AFS
activates the left-side headlight.
AFS will also adjust the headlight to a proper
axis automatically, depending on the number
of occupants in the vehicle, the load the ve-
hicle is carrying and the road conditions. If the AFS OFF indicator blinks or the vehicle
information display shows an AFS system
error message after the ignition switch has
been pushed to the ON position, this may
indicate that the AFS is not functioning prop-
erly. Have the system checked. It is recom-
mended you visit an INFINITI retailer for this
service. When the engine is started, the head-
lights will vibrate to check the system condi-
tion. This is not a malfunction.
Automatic headlight aiming control
(if so equipped)
Your vehicle is equipped with an automatic
headlight levelling system. The headlight axis
is controlled automatically.
INFINITI recommends that you consult the
local regulations on the use of lights.
LED DAYTIME RUNNING LIGHTS
(DRL) SYSTEM
The LED portion of the headlights automati-
cally illuminate at 100% intensity when the
engine is started and the parking brake re-
leased. The LED Daytime Running Lights
(DRL) system operates with the headlight
switch in the OFF position. When you turn
the headlight switch to the
position for
full illumination, the LED lights switch from
LED DRL system to the park function. If the parking brake is applied before the
engine is started, the LED DRL system does
not illuminate. The LED DRL system illumi-
nates when the parking brake is released. The
LED DRL system will remain on until the
ignition switch is placed in the OFF position.
It is necessary at dusk to turn the headlight
switch on for interior controls and switches
to illuminate, as those remain off while the
switch is in the OFF position.
WARNING
When the LED DRL system is active, tail
lights on your vehicle are not on. It is nec-
essary at dusk to turn on your headlights.
Failure to do so could cause an accident
injuring yourself and others.
2-40Instruments and controls

WARNING
• Failure to properly adjust the brightness
and position of the displayed image may
interfere with the drivers ability to see
through the windshield which could
cause an accident leading to severe in-
jury or death.
• Do not use the head up display for ex-
tended periods of time as that can cause
you to not see other vehicles, pedestri-
ans or objects, which could cause an ac-
cident leading to severe injury or death. The HUD can display one or more of the
following features (if so equipped):
1Vehicle speed display
2Driving Aids
3Navigation/Warning
4Traffic Sign Recognition
NOTE:
• Do not place any type of liquid on or near
the projector. Doing so may cause mal-
function of the equipment.
• Do not touch any internal parts of the pro- jector. Doing so may cause malfunction of
the equipment.
• To prevent scratches to the projector glass, do not place any sharp objects on or
near the projector opening.
• Do not place any objects on the instrument panel which may obstruct the display of
the HUD.
• When wearing polarized sunglasses it may be difficult to recognize the display.
• Depending on weather conditions (rain, snow, sun light, temperature), it may be
difficult to recognize the display.
HOW TO USE THE HUD
To turn the HUD system on, push the HUD
switch. To turn the HUD off, push the switch
again.
If the HUD system is turned off, it will remain
off even if the vehicle is restarted.
To adjust the HUD settings when the system
is on:
1. Press the MENU button below the lower display.
2. Touch the “Settings” key and then the “Head Up Display” key.
LIC4268LIC3829
HEAD UP DISPLAY (HUD) (if so
equipped)
2-46Instruments and controls

•Make sure to engage the P (Park) posi-
tion and apply the parking brake when
parking your vehicle, riding on or off the
vehicle or loading luggage. Failure to do
so could cause the vehicle to move or roll
away unexpectedly and result in serious
personal injury or property damage.
The Intelligent Key system can operate all the
door locks using the remote control function
or pushing the request switch on the vehicle
without taking the key out from a pocket or
purse. The operating environment and/or
conditions may affect the Intelligent Key sys-
tem operation.
Be sure to read the following before using the
Intelligent Key system.
CAUTION
• Be sure to carry the Intelligent Key with
you when operating the vehicle.
• Never leave the Intelligent Key in the ve-
hicle when you leave the vehicle. The Intelligent Key is always communicating
with the vehicle as it receives radio waves.
The Intelligent Key system transmits weak
radio waves. Environmental conditions may
interfere with the operation of the Intelligent
Key system under the following operating
conditions:
• When operating near a location where
strong radio waves are transmitted, such as
a TV tower, power station and broadcast-
ing station.
• When in possession of wireless equipment, such as a cellular telephone, transceiver or
a CB radio.
• When the Intelligent Key is in contact with or covered by metallic materials.
• When any type of radio wave remote con- trol is used nearby.
• When the Intelligent Key is placed near an electric appliance such as a personal
computer.
• When the vehicle is parked near a parking meter.
In such cases, correct the operating condi-
tions before using the Intelligent Key function
or use the mechanical key. Although the life of the battery varies de-
pending on the operating conditions, the bat-
tery’s life is approximately two years. If the
battery is discharged, replace it with a new
one.
When the Intelligent Key battery is low, a
“Key Battery Low” indicator illuminates in the
vehicle information display. For additional in-
formation, see “Vehicle information display
warnings and indicators” (P. 2-21).
Since the Intelligent Key is continuously re-
ceiving radio waves, if the key is left near
equipment which transmits strong radio
waves, such as signals from a TV and per-
sonal computer, the battery life may become
shorter.
For additional information, see “Battery re-
placement” (P. 8-22).
CAUTION
Listed below are conditions or occurrences
which will damage the Intelligent Key:
• Do not allow the Intelligent Key, which
contains electrical components, to come
into contact with water or salt water.
This could affect the system function.
• Do not drop the Intelligent Key.
Pre-driving checks and adjustments3-7

NOTE:
• The one touch sensors and requestswitches for all doors and liftgate can be
deactivated when the Lock/Unlock by
Door Handle setting is switched to OFF in
“Comfort & Convenience” options of the
“Settings” menu of the lower touch-
screen display. For additional information,
refer to the separate INFINITI InTouch™
Owner’s Manual.
• Doors will lock with the Intelligent Key while the ignition switch is placed in the
ON position. • Doors will not lock by pushing the door
handle request switch with the Intelligent
Key inside the vehicle. However, when an
Intelligent Key is inside the vehicle, doors
can be locked with another registered In-
telligent Key.
WARNING
After locking the doors using the request
switch, make sure that the doors have been
securely locked by operating the door
handles within two seconds of locking.
Failure to follow these instructions may re-
sult in inadvertently unlocking the doors,
which may decrease the safety and secu-
rity of your vehicle.
CAUTION
• When locking the doors using the re-
quest switch, make sure to have the In-
telligent Key in your possession before
operating the request switch to prevent
the Intelligent Key from being left in the
vehicle.
• The request switch is operational only
when the Intelligent Key has been de-
tected by the Intelligent Key system.
Lockout protection
To prevent the Intelligent Key from being
accidentally locked in the vehicle, lockout
protection is equipped with the Intelligent
Key.
When the driver’s side door is open, the doors
are locked, then the Intelligent Key is left
inside the vehicle and the door is closed, all
doors will unlock automatically.
NOTE:
The doors may not lock when the Intelligent
Key is in the same hand that is operating the
request switch to lock the door. Put the In-
telligent Key in a purse, pocket or your other
hand.
CAUTION
The lockout protection may not function
under the following conditions:
• When the Intelligent Key is placed on top
of the instrument panel.
• When the Intelligent Key is placed inside
the glove box or a storage bin.
• When the Intelligent Key is placed inside
the door pockets.
• When the Intelligent Key is placed inside
or near metallic materials.
LPD2734
Pre-driving checks and adjustments3-11