2021 INFINITI Q50 ECU

SSS0640
1.If you must install a booster seat in the
front seat, move the seat to the rear-
most position.
2. Position the booster seat on the seat. Only place it in a forward-facing direc-
tion. Always follow the booster seat
manufacturer’s instructions.
LRS0454
Front passenger position
3. The booster seat should be positioned on the vehicle seat so that it is stable.
If necessary, adjust or remove the head
restraint or headrest to obtain the
correct booster seat fit. If the head
restraint or headrest is removed, store
it in a secure place. Be sure to reinstall
the head restraint or headrest when the
booster seat is removed. See “Head
restraints/headrests” (P.1-8) for head
restraint or headrest adjustment, re-
moval and installation information.
If the seating position does not have an
adjustable head restraint or headrest
and it is interfering with the proper booster seat fit, try another seating
position or a different booster seat.
4. Position the lap portion of the seat belt low and snug on the child’s hips. Be sure
to follow the booster seat manufac-
turer’s instructions for adjusting the seat
belt routing.
5. Pull the shoulder belt portion of the seat belt toward the retractor to take up
extra slack. Be sure the shoulder belt is
positioned across the top, middle portion
of the child’s shoulder. Be sure to follow
the booster seat manufacturer’s instruc-
tions for adjusting the seat belt routing.
6. Follow the warnings, cautions and in- structions for properly fastening a seat
belt shown in “Seat belts” (P.1-12).
Safety — Seats, seat belts and supplemental restraint system1-41

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 related to the
normal operation and troubleshooting of
this occupant classification sensor system,
please refer to “Normal operation” (P.1-54)
and “Troubleshooting” (P.1-55).
Front passenger air bag:
The front passenger air bag is designed to
automatically turn OFF when the vehicle is
operated under some conditions as de-
scribed 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.
The purpose of the regulation is to help
reduce the risk of injury or death from an
inflating air bag to certain front passenger
seat occupants, such as children, by requiring
the air bag to be automatically turned OFF.
Certain sensors are used to meet the
requirements.
The occupant classification sensor in this
vehicle is a weight sensor. It is designed to
detect an occupant and objects on the seat
by weight. For example, if a child is in the
front passenger seat, the Advanced Air Bag
System is designed to turn the passenger airbag OFF in accordance with the regulations.
Also, if a child restraint of the type specified
in the regulations is on the seat, its weight
and the child’s weight can be detected and
cause the air bag to turn OFF.
Front passenger seat adult occupants who
are properly seated and using the seat belt
as outlined in this manual should not cause
the passenger air bag to be automatically
turned OFF. For small adults it may be
turned OFF, however, if the occupant takes
his/her weight off the seat cushion (for
example, by not sitting upright, by sitting on
an edge of the seat, or by otherwise being
out of position), this could cause the sensor
to turn the air bag OFF. Always be sure to be
seated and wearing the seat belt properly
for the most effective protection by the seat
belt and supplemental air bag.
INFINITI recommends that pre-teens and
children be properly restrained in a rear seat.
INFINITI also recommends that appropriate
child restraints and booster seats be prop-
erly installed in a rear seat. If this is not
possible, the occupant classification sensor
is designed to operate as described above to
turn the front passenger air bag OFF for
specified child restraints as required by the
regulations. Failing to properly secure child
restraints and to use the ALR mode may
allow the restraint to tip or move in a
collision or sudden stop. This can also result
in the passenger air bag inflating in a crash
instead of being OFF. For additional infor-
mation, refer to “Child restraints” (P.1-22)
for proper use and installation.
If the front passenger seat is not occupied,
the passenger air bag is designed not to
inflate in a crash. However, heavy objects
placed on the seat could result in air bag
inflation, because of the object’s weight
detected by the occupant classification
sensor. Other conditions could also result in
air bag inflation, such as if a child is standing
on the seat, or if two children are on the
seat, contrary to the instructions in this
manual. Always be sure that you and all
vehicle occupants are seated and restrained
properly.
Using the front passenger air bag status
light, you can monitor when the front
passenger air bag is automatically turned
OFF.
If an adult occupant is in the seat but the
front passenger air bag status light is
illuminated (indicating that the air bag is
OFF), it could be that the person is a small
adult, or is not sitting on the seat properly or
not using the seat belt properly.
If a child restraint must be used in the front
seat, the front passenger air bag status light
may or may not be illuminated, depending on
the size of the child and the type of child
Safety — Seats, seat belts and supplemental restraint system1-53

2 Instruments and controls
Cockpit ........................................................................\
......... 2-3
Instrument panel ............................................................... 2-5
Meters and gauges .......................................................... 2-6Speedometer and odometer ..................................... 2-7
Tachometer ................................................................... 2-8
Engine coolant temperature gauge ....................... 2-8
Fuel gauge ..................................................................... 2-9
Warning lights, indicator lights and audible
reminders ........................................................................\
... 2-10 Checking lights ........................................................... 2-11
Warning/indicator lights (red) ............................... 2-11
Warning/indicator lights (yellow) ......................... 2-13
Warning/indicator lights (other) ........................... 2-17
Audible reminders ..................................................... 2-17
Vehicle information display .......................................... 2-18 Indicators for operation .......................................... 2-21
Indicators for maintenance .................................... 2-24
Trip computer ............................................................. 2-27
Clock and outside air temperature ....................... 2-29
Security systems ............................................................ 2-30
Vehicle Security System ......................................... 2-30
INFINITI Vehicle Immobilizer System .................. 2-31
Wiper and washer switch ............................................. 2-32
Rain-sensing auto wiper system ........................... 2-34 Rear window and outside mirror
defroster switch ............................................................. 2-35
Headlight and turn signal switch ............................... 2-35
Headlight switch ..................................................... 2-35
Turn signal switch ................................................... 2-41
Fog light switch ....................................................... 2-42
Horn ........................................................................\
........... 2-42
Vehicle Dynamic Control (VDC) OFF switch ......... 2-42
Heated seats (if so equipped) ..................................... 2-43 Operation with switch .......................................... 2-44
Operation with touch screen .............................. 2-44
AUTO mode setting .............................................. 2-44
Heated steering wheel (if so equipped) .................. 2-44
Power outlets .................................................................. 2-45
Emergency Call (SOS) button (if so equipped) ...... 2-46 Emergency support ................................................ 2-46
Storage ........................................................................\
.... 2-48 Cup holders .............................................................. 2-48
Soft bottle holder .................................................... 2-49
Sunglasses holder .................................................... 2-49
Glove box .................................................................. 2-50
Console box ............................................................. 2-50
Card holder .............................................................. 2-50
Storage box .............................................................. 2-51

2-10Instruments and controls
Warning/indicator lights (red)Warning/indicator lights (yellow) Warning/indicator lights (other)
Brake warning lightAnti-lock Braking System (ABS) warning
lightECO drive indicator light
Charge warning lightForward Emergency Braking (FEB) sys-
tem warning lightExterior light indicator
Master warning lightFront passenger air bag status lightFront fog light indicator light
Seat belt warning light and chimeLow fuel warning lightHigh beam assist indicator light (if so
equipped)
Security indicator lightLow tire pressure warning lightHigh beam indicator light
Supplemental air bag warning lightMalfunction Indicator Light (MIL)Turn signal/hazard indicator lights
Master warning light
Power steering warning light
Vehicle Dynamic Control (VDC) off in-
dicator light
Vehicle Dynamic Control (VDC) warning
light
WARNING LIGHTS, INDICATOR
LIGHTS AND AUDIBLE REMINDERS

2-12Instruments and controls
on, have your vehicle serviced immediately. It
is recommended you visit an INFINITI re-
tailer for this service.
CAUTION
Do not continue driving if the alternator
belt is loose, broken or missing.
Master warning light
When the ignition switch is in the ON
position, the master warning light illumi-
nates when a warning message appears in
the vehicle information display.
See “Vehicle information display” (P.2-18).
Seat belt warning light and
chime
The light and chime remind you to fasten the
driver and front passenger seat belts.
The light illuminates whenever the ignition
switch is placed in the ON position, and will
remain illuminated until the front seat belts
are fastened.
When the vehicle speed exceeds 10 MPH
(15 km/h), the light will blink unless the front
seat belts are securely fastened. When the ignition switch is placed in the ON
position, the chime will sound for about 6
seconds unless the driver’s seat belt is
securely fastened.
When the vehicle speed exceeds 10 MPH
(15 km/h), the chime will sound unless the
front seat belts are securely fastened. The
chime will continue to sound for about 95
seconds until the front seat belts are fas-
tened.
See “Seat belt warning light and chime” (P.1-
14).
Security indicator light
The light blinks when the ignition switch is in
the ACC, OFF or LOCK position. This
function indicates the security system
equipped on the vehicle is operational.
If the security system is malfunctioning, this
light will remain on while the ignition switch
is in the ON position. For additional informa-
tion, see “Security systems” (P.2-30).
Supplemental air bag warning
light
After pushing the ignition switch to the ON
position, the supplemental air bag warning
light will illuminate. The supplemental air bag
warning light will turn off after about 7
seconds if the supplemental front air bag and supplemental side air bag, curtain side-
impact air bag systems and/or pretensioner
seat belt are operational.
If any of the following conditions occur, the
supplemental front air bag, supplemental
side air bag, supplemental curtain side-
impact air bag and pretensioner seat belt
needs 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.
It is recommended you visit an INFINITI
retailer for these services.
Unless checked and repaired, the Supple-
mental Restraint Systems and/or the pre-
tensioner seat belt may not function
properly.
For additional information, see “Supplemen-
tal restraint system” (P.1-42).
WARNING
If the supplemental air bag warning light
is on, it could mean that the front air
bag, side air bag, curtain air bag systems
and/or pretensioner seat belt will not

2-22Instruments and controls
reaches the empty (0) position.
There is a small reserve of fuel remaining in
the tank when the fuel gauge reaches the
empty (0) position.
11. Low washer fluid warning
This warning appears when the washer tank
fluid is at a low level. Add washer fluid as
necessary. (See “Window washer fluid” (P.8-
10).)
12. Door/trunk open warning
This warning appears if any of the doors
and/or the trunk lid are open or not closed
securely. The vehicle icon indicates which
door or the trunk lid is open on the display.
13. Intelligent Key system warning
This warning appears if there is a malfunc-
tion in the Intelligent Key system.
If this warning appears while the engine is
stopped, the engine cannot be started. If this
warning appears while the engine is running,
the vehicle can be driven. However, in these
cases, have the system checked as soon as
possible. It is recommended you visit an
INFINITI retailer for this service.
14. Loose Fuel Cap warning
This warning appears when the fuel-filler
cap is not tightened correctly after thevehicle has been refueled. (See “Fuel-filler
cap” (P.3-25).)
15. Tire Pressure Low - Add Air
warning
This warning appears when the low tire
pressure warning light in the meter illumi-
nates and low tire pressure is detected. The
warning appears each time the ignition
switch is placed in the ON position as long
as the low tire pressure warning light
remains illuminated. If this warning appears,
stop the vehicle and adjust the pressure to
the recommended COLD tire pressure
shown on the Tire and Loading Information
label. (See “Low tire pressure warning light”
(P.2-13) and “Tire Pressure Monitoring
System (TPMS)” (P.5-5).)
16. Flat Tire - Visit dealer warning
(if so equipped)
This warning appears when the low tire
pressure warning light in the meter illumi-
nates and one or more flat tires are detected
while driving. A chime also sounds for
approximately 10 seconds. (See “Low tire
pressure warning light” (P.2-13) and “Tire
Pressure Monitoring System (TPMS)” (P.5-
5).)
17. Low oil pressure warning
This warning appears if low engine oil
pressure is detected. If the warning appears
during normal driving, pull off the road in a
safe area, stop the engine immediately and
call an INFINITI retailer or other authorized
repair shop.
The low oil pressure warning is not designed
to indicate a low oil level. Use the dipstick to
check the oil level. (See “Engine oil” (P.8-7).)
18. All-Wheel Drive (AWD) warning
(if so equipped)
This warning appears when the Intelligent
All-Wheel Drive (AWD) system is not func-
tioning properly while the engine is running.
The displayed message will vary depending
on the condition of the AWD system mal-
function. (See “Intelligent All-Wheel Drive
(AWD)” (P.5-120).)
19. Extended storage fuse warning
(if so equipped)
This warning may appear if the extended
storage fuse switch is not pushed in
(switched on). When this warning appears,
push in (switch on) the extended storage
fuse switch to turn off the warning. For
more information, see “Extended storage
fuse switch” (P.8-19).

2-30Instruments and controls
SIC2132
Your vehicle has two types of security
systems, as follows:
.Vehicle security system
. INFINITI Vehicle Immobilizer System
The security condition will be shown by the
security indicator light.
VEHICLE SECURITY SYSTEM
The vehicle security system provides visual
and audio alarm signals if someone opens
the doors, hood, or trunk lid when the
system is armed. It is not, however, a motion
detection type system that activates when a
vehicle is moved or when a vibration occurs.
The system helps deter vehicle theft but
cannot prevent it, nor can it prevent the
theft of interior or exterior vehicle compo-
nents in all situations. Always secure your
vehicle even if parking for a brief period.
Never leave your Intelligent Key(s) in the
vehicle, and always lock it when unattended.
Be aware of your surroundings, and park in
secure, well-lit areas whenever possible.
Many devices offering additional protection,
such as component locks, identification
markers, and tracking systems, are available
at auto supply stores and specialty shops.
Your INFINITI retailer may also offer such
equipment. Check with your insurance com-
pany to see if you may be eligible for
discounts for various theft protection fea-
tures.
SIC2045
How to arm the vehicle security
system
1. Close all windows.
The system can be armed even if the
windows are open.
2. Push the ignition switch to the OFF position.
3. Remove the Intelligent Key from the vehicle.
4. Close all doors, hood and trunk. Lock all doors. The doors can be locked with the
Intelligent Key, door handle request
switch or power door lock switch.
SECURITY SYSTEMS

5. Confirm that the security indicator lightcomes on. The security indicator light
stays on for about 30 seconds. The
vehicle security system is now pre-
armed. After about 30 seconds the
vehicle security system automatically
shifts into the armed phase. The security
light begins to flash once every approxi-
mately 3 seconds. If, during this 30-
second pre-arm time period, the door is
unlocked, or the ignition switch is pushed
to ACC or ON, the system will not arm.
Even when the driver and/or passengers
are in the vehicle, the system will activate
with all doors, hood, and trunk lid locked
with the ignition switch in the LOCK
position. When pushing the ignition switch
to the ACC or ON position, the system will
be released.
Vehicle security system activation
The vehicle security system will give the
following alarm:
. The headlights blink and the horn sounds
intermittently.
. The alarm automatically turns off after
approximately 1 minute. However, the
alarm reactivates if the vehicle is tam-
pered with again. The alarm is activated by:
.
Unlocking the door or opening the trunk
lid without using the UNLOCK button on
the Intelligent Key, the door handle
request switch or one touch unlock
sensor. (Even if the door is opened by
releasing the door inside lock knob or
using the mechanical key, the alarm will
activate.)
. Opening the hood.
How to stop an activated alarm
The alarm will stop by unlocking a door by
pushing the UNLOCK button on the Intelli-
gent Key, the door handle request switch or
touching the one touch unlock sensor. The
alarm will not stop if the ignition switch is
placed in the ACC or ON position.
If the Intelligent Key battery is discharged:
If the Intelligent Key battery is discharged,
the alarm will not stop by pushing the
UNLOCK button on the Intelligent Key, the
door handle request switch or one touch
unlock sensor. In such a case, unlock the
driver’s door using the mechanical key and
touch the ignition switch with the Intelligent
Key to stop the alarm. See “Intelligent Key
battery discharge” (P.5-14) for details.
If the system does not operate as described
above, it is recommended you have it
checked by an INFINITI retailer.
INFINITI VEHICLE IMMOBILIZER
SYSTEM
The INFINITI Vehicle Immobilizer System
will not allow the engine to start without
the use of the registered Intelligent Key.
Never leave these keys in the vehicle.
FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions: (1) This device
may not cause harmful interference, and (2)
this device must accept any interference
received, including interference that may
cause undesired operation.
NOTE:
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s authority
to operate the equipment.
For Canada:
This device complies with Industry Canada
licence-exempt RSS standard(s). Operation
is subject to the following two conditions:
(1) this device may not cause interference,
and (2) this device must accept any inter-
ference, including interference that may
cause undesired operation of the device.
Instruments and controls2-31