2021 INFINITI QX50 check engine

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

CAUTION
• The battery could run down if the climate
control seat is operated while the engine
is not running.
• Do not use the climate control seat for
extended periods or when no one is using
the seat.
• Do not put anything on the seat which
insulates heat, such as a blanket, cush-
ion, seat cover, etc. Otherwise, the seat
may become overheated.
• Do not place anything hard or heavy on
the seat or pierce it with a pin or similar
objects. This may result in damage to the
climate controlled seat.
• Any liquid spilled on the seat should be
removed immediately with a dry cloth.
• When cleaning the seat, never use gaso-
line, benzine, thinner, or any similar
materials.
• If any malfunctions are found or the cli-
mate controlled seat does not operate,
turn the switch off and have the system
checked. It is recommended that you
visit an INFINITI retailer for this service. The climate controlled seat cools down the
front seat by blowing cool air from under the
surface of the seat. The climate control
switch is located on the center console.
The climate controlled seat can be operated
as follows:
1. Place the ignition switch in the ON
position.
2. Push the climate controlled seat switches to cool the seat. The indicator light on the
corresponding switch will illuminate.
3. Adjust the desired amount of air by push- ing the switch again. The climate con-
trolled seat blower remains on low speed
for approximately 60 seconds after push-
ing the switch on.
4. When the vehicle's interior is warmed or cooled, or before you leave the vehicle, be
sure to turn off the climate controlled
seats. To turn off the climate controlled
seats, push the switch until the indicator
light does not illuminate.
WARNING
Do not use or allow occupants to use the
seat heater if you or the occupants cannot
monitor elevated seat temperatures or
have an inability to feel pain in body parts
that contact the seat. Use of the seat
heater by such people could result in seri-
ous injury.
LIC3906
HEATED SEATS (if so equipped)
Instruments and controls2-43

CAUTION
• The battery could run down if the seat
heater is operated while the engine is not
running.
• Do not use the seat heater for extended
periods or when no one is using the seat.
• Do not put anything on the seat which
insulates heat, such as a blanket, cush-
ion, seat cover, etc. Otherwise, the seat
may become overheated.
• Do not place anything hard or heavy on
the seat or pierce it with a pin or similar
object. This may result in damage to the
heater. •
Any liquid spilled on the heated seat
should be removed immediately with a
dry cloth.
• When cleaning the seat, never use gaso-
line, benzine, thinner, or any similar
materials.
• If any malfunctions are found or the
heated seat does not operate, turn the
switch off and have the system checked.
It is recommended that you visit an
INFINITI retailer for this service.
Switch operation:
The front seats are warmed by built-in heat-
ers. The switches are located on the center
console and can be operated independently
of each other.
1. Place the ignition switch in the ON position.
2. Push the heated seat switch and select the desired heat range.
• For high heat, push the switch once.
• For medium heat, push the switch twice.
• For low heat, push the switch three times.
• The indicator light will illuminate when the heater is on. 3. To turn off the heater, push the heated
seat switch again. Make sure that the in-
dicator light turns off.
The heater is controlled by a control mod-
ule, automatically turning the heater on
and off.
The indicator light will remain on as long
as the switch is on.
When the seat is warmed, or before you
leave the vehicle, be sure to turn the
switch off.
Touch screen operation:
• Touch the
key on the lower display.
Select an item from High, Mid, Low, or
OFF.
NOTE:
For additional information, see “Heater and
air conditioner (automatic)” (P. 4-34).
LHA5300
2-44Instruments and controls

3 Pre-driving checks and adjustments
Keys.............................................3-2
INFINITI Intelligent Key .......................3-2
INFINITI Vehicle Immobilizer System
keys ..........................................3-4
Doors ...........................................3-4
Locking with key ..............................3-4
Locking with inside lock knob Type A
(if so equipped) ...............................3-5
Locking with inside lock knob Type B
(if so equipped) ...............................3-5
Locking with power door lock switch ..........3-5
Automatic door locks .........................3-6
Child safety rear door lock .....................3-6
INFINITI Intelligent Key System ...................3-6
Operating range ..............................3-8
Door locks/unlocks precaution ................3-9
INFINITI Intelligent Key operation .............3-9
How to use the remote keyless entry
function .................................... 3-13
Warning signals ............................. 3-16
Troubleshooting guide ......................3-16
Log-in function ............................. 3-18
Remote Engine Start (if so equipped) ...........3-18
Remote Engine Start operating range ........3-19
Remote starting the vehicle ..................3-19
Extending engine run time ...................3-19
Canceling a Remote Engine Start ............3-20 Conditions the Remote Engine Start will
not work
................................... 3-20
Hood .......................................... 3-21
Liftgate ....................................... 3-21
Operating the power liftgate ................3-22
Motion-Activated Liftgate
(if so equipped) ............................. 3-24
Power liftgate main switch ..................3-26
Liftgate release ............................. 3-26
Liftgate position setting .....................3-27
Fuel-filler door ................................. 3-28
Opening the fuel-filler door ..................3-28
Fuel-filler cap ............................... 3-28
Steering wheel ................................. 3-31
Manual operation (if so equipped) ...........3-31
Automatic operation (if so equipped) .........3-31
Sun visors ..................................... 3-32
Vanity mirrors .............................. 3-33
C
ard holder ................................. 3-33
Mirrors ........................................ 3-33
Manual anti-glare rearview mirror
(if so equipped) ............................. 3-33
Automatic anti-glare rearview mirror
(if so equipped) ............................. 3-34
Outside mirrors ............................. 3-34
Memory Seat (if so equipped) ...................3-36

CAUTION
When locking the doors using the Intelli-
gent Key, be sure not to leave the key in the
vehicle.
Type A (if so equipped)
1.(lock) button
2.
(unlock) button
3.
(liftgate) button
4.
(panic) button
Type B (if so equipped)
1.(remote engine start) button
2.
(lock) button
3.
(unlock) button
4.
(liftgate) button
5.
(panic) button
Locking doors
1. Place the ignition switch in the LOCK position.
2. Close all doors.
LPD3701LPD3702
3-14Pre-driving checks and adjustments

SymptomPossible CauseRemedy
When engaging the P (Park) position The Push Ignition to OFF warning ap-
pears in the display. The ignition switch is in the ON position.Place the ignition switch in the OFF
position.
When opening the driver’s door to get
out of the vehicle The Door Open warning appears on the
display.
The ignition switch is in the ON position.Place the ignition switch in the OFF
position.
When closing the door after getting out
of the vehicle The No Key Detected warning appears
on the display, the outside chime sounds
three times.
The ignition switch is in the ON position.
Place the ignition switch in the OFF
position.
The Shift to P warning appears on the
display and the outside chime sounds
continuously. The ignition switch is in the ON position
and the P (Park) position is not engaged.Apply the parking brake.
Place the ignition switch in the OFF
position.
When closing the door with the inside
lock knob turned to LOCK The outside chime sounds for approxi-
mately 3 seconds and all the doors un-
lock.
The Intelligent Key is inside the vehicle. Carry the Intelligent Key with you.
When pushing the door handle or lift-
gate request switch or the
button
on the Intelligent Key to lock the door The outside chime sounds for approxi-
mately 2 seconds.
The Intelligent Key is inside the vehicle. Carry the Intelligent Key with you.
When pushing the ignition switch to
start the engine The Key Battery Low warning appears
on the display.
The battery charge may be getting low.Replace the battery with a new one. For
additional information, see “Battery re-
placement” (P. 8-22).
The No Key Detected warning appears
on the display, the outside chime sounds
three times and the inside warning chime
sounds for approximately 3 seconds. The battery charge may be getting low.
Replace the battery with a new one. For
additional information, see “Battery re-
placement” (P. 8-22).
When pushing the ignition switch The Key System Error: See Owner’s
Manual warning appears on the display. It warns of a malfunction with the Intelli-
gent Key system.It is recommended that you visit an
INFINITI retailer.
Pre-driving checks and adjustments3-17

LOG-IN FUNCTION
After setting up the user information, the
system will automatically recognize the user
upon turning on the vehicle.
There will be a personalized welcome greet-
ing and screen prompt to log in.
This feature allows four drivers to use their
own registration, drive mode, driving posi-
tion, air conditioner, and auto settings and
memorizes these custom settings.
The log-in user can be changed on the wel-
come greeting screen or the User List screen.
For additional information, refer to the sepa-
rate INFINITI InTouch™ Owner’s Manual.
The log-in function is linked to the following
features:
• Meter
• Audio
• Navigation system display
• Navigation settings
• Air conditioner
• Memory seat (if so equipped)
• Engine/transmission
• Steering
• Suspension (if so equipped)
• Active trace control system• Driver assistance except for the Forward
Emergency Braking (FEB) with Pedestrian
Detection system (if so equipped)
• Body Control Module (BCM)
The
button will be on the INFINITI
Intelligent Key if the vehicle has Remote En-
gine Start. This feature allows the engine to
start from outside the vehicle.
Vehicles with an automatic climate control
system will default to either a heating or
cooling mode depending on outside and
cabin temperatures. For additional informa-
tion, see. “Remote Engine Start with Intelli-
gent Climate Control” (P. 4-35).
Laws in some local communities may restrict
the use of remote starters. For example,
some laws require a person using Remote
Engine Start to have the vehicle in view.
Check local regulations for any requirements.
LPD2995
REMOTE ENGINE START (if so
equipped)
3-18Pre-driving checks and adjustments

Other conditions may affect the function of
the Remote Engine Start feature. For addi-
tional information, see “Conditions the Re-
mote Engine Start will not work” (P. 3-20).
Other conditions can affect the performance
of the Intelligent Key transmitter. For addi-
tional information, see “INFINITI Intelligent
Key” (P. 3-6).
REMOTE ENGINE START
OPERATING RANGE
WARNING
To help avoid risk of injury or death
through unintended operation of the ve-
hicle and/or its systems, including entrap-
ment in windows or inadvertent door lock
activation, do not leave children, people
who require the assistance of others or
pets unattended in your vehicle. Addition-
ally, the temperature inside a closed vehicle
on a warm day can quickly become high
enough to cause a significant risk of injury
or death to people and pets.
CAUTION
When the Intelligent Key battery is dis-
charged or other strong radio wave
sources are present near the operating lo-
cation, the Intelligent Key operating range
becomes narrower, and the Intelligent Key
may not function properly.
The Remote Engine Start function can only
be used when the Intelligent Key is within the
specified operating range from the vehicle.
The Remote Engine Start operating range is
approximately 197 ft (60 m) from the vehicle.
REMOTE STARTING THE
VEHICLE
To use the Remote Engine Start feature to
start the engine perform the following:
1. Aim the Intelligent Key at the vehicle.
2. Press the
button to lock all doors.
3. Within 5 seconds press and hold the
button until the turn signal lights flash and
the tail lamps turn on. If the vehicle is not
within view press and hold the
but-
ton for at least 2 seconds. The following events will occur when the en-
gine starts:
• The parking lights will turn on and remain
on as long as the engine is running.
• The doors will be locked and the climate control system may come on.
• The engine will continue to run for 10 min- utes. Repeat the steps to extend the time
for an additional 10 minutes. For additional
information, see “Extending engine run
time” (P. 3-19).
Depress and hold the brake then push the
push-button ignition switch to the ON posi-
tion before driving. For additional informa-
tion, see “Driving the vehicle” (P. 5-18).
EXTENDING ENGINE RUN TIME
The Remote Engine Start feature can be ex-
tended one time by performing the steps
listed in “Remote starting the vehicle” in this
section. Run time will be calculated as
follows:
• The first 10–minute run time will start when the Remote Engine Start function is
performed.
Pre-driving checks and adjustments3-19