2018 INFINITI Q50 air condition

1-56Safety — Seats, seat belts and supplemental restraint system
system.
. A cracked windshield should be re-
placed immediately by a qualified
repair facility. A cracked windshield
could affect the function of the
supplemental air bag system.
* The SRS wiring harness connectors are
yellow and orange for easy identifica-
tion.
When selling your vehicle, we request that
you inform the buyer about the front air bag
system and guide the buyer to the appro-
priate sections in this Owner’s Manual.
SSS0521
FRONT SEAT-MOUNTED SIDE-
IMPACT SUPPLEMENTAL AIR
BAG AND ROOF-MOUNTED
CURTAIN SIDE-IMPACT AND
ROLLOVER SUPPLEMENTAL AIR
BAG SYSTEMS
The side air bags are located in the outside
of the seatback of the front seats. The
curtain air bags are located in the side roof
rails. All of the information, cautions and
warnings in this manual apply and must be
followed. The side air bags and curtain air
bags are designed to inflate in higher
severity side collisions, although they may inflate if the forces in another type of
collision are similar to those of a higher
severity impact. They are designed to inflate
on the side where the vehicle is impacted.
They may not inflate in certain side collisions.
Curtain air bags are also designed to inflate
in certain types of rollover collisions or near
rollovers. As a result, certain vehicle move-
ments may cause the curtain air bags to
inflate.
Vehicle damage (or lack of it) is not always
an indication of proper supplemental side air
bag and curtain side-impact air bag opera-
tion.
When side air bags and curtain air bags
inflate, a fairly loud noise may be heard,
followed by release of smoke. This smoke is
not harmful and does not indicate a fire.
Care should be taken not to inhale it, as it
may cause irritation and choking. Those with
a history of a breathing condition should get
fresh air promptly.
Side air bags, along with the use of seat
belts, help to cushion the impact force on the
chest of the front occupants. Curtain air
bags help to cushion the impact force to the
head of occupants in the front and rear
outboard seating positions in all rows. They
can help save lives and reduce serious
injuries. However, an inflating side air bags
and curtain air bags may cause abrasions or

1-58Safety — Seats, seat belts and supplemental restraint system
SEAT BELTS WITH PRETEN-
SIONERS (front seats)
WARNING
.The pretensioners cannot be reused
after activation. They must be re-
placed together with the retractor
and buckle as a unit.
. If the vehicle becomes involved in a
collision but a pretensioner is not
activated, be sure to have the pre-
tensioner system checked and, if
necessary, replaced. It is recom-
mended you visit an INFINITI retailer
for this service.
. No unauthorized changes should be
made to any components or wiring of
the pretensioners. This is to prevent
damage to or accidental activation of
the pretensioner system. Tampering
with the pretensioner system may
result in serious personal injury.
. It is recommended you visit an
INFINITI retailer for work on and
around the pretensioner system. It is
also recommended you visit an
INFINITI retailer for installation of
electrical equipment. Unauthorized
electrical test equipment and probing devices should not be used on the
pretensioner system.
. If you need to dispose of the preten-
sioner or scrap the vehicle, it is
recommended you visit an INFINITI
retailer for this service. Correct pre-
tensioner disposal procedures are set
forth in the appropriate INFINITI
Service Manual. Incorrect disposal
procedures could cause personal in-
jury.
The pretensioner system may activate with
the supplemental air bag system in certain
types of collisions. Working with the seat
belt retractor, it helps tighten the seat belt
when the vehicle becomes involved in certain
types of collisions, helping to restrain front
seat occupants.
The pretensioner is encased with the seat
belt retractor. These seat belts are used the
same way as conventional seat belts.
When a pretensioner seat belt activates,
smoke is released and a loud noise may be
heard. The smoke is not harmful, and it does
not indicate a fire. Care should be taken not
to inhale it as it may cause irritation and
choking. Those with a history of a breathing
condition should get fresh air promptly.
After pretensioner activation, load limiters
allow the seat belt to release webbing (if necessary) to reduce forces against the
chest.
The supplemental air bag warning light
is used to indicate malfunctions in the
pretensioner system. (See “Supplemental
air bag warning light” (P.1-59) for more
details.) If the operation of the supplemental
air bag warning light indicates there is a
malfunction, have the system checked. It is
recommended you visit an INFINITI retailer
for this service.
When selling your vehicle, we request that
you inform the buyer about the seat belt
pretensioners and guide the buyer to the
appropriate sections in this Owner’s Manual.

1-60Safety — Seats, seat belts and supplemental restraint system
If any of the following conditions occur, the
air bag and/or pretensioner systems need
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.
Under these conditions, the air bag or
pretensioner systems may not operate prop-
erly. They must be checked and repaired. It is
recommended you visit an INFINITI retailer
for this service.
WARNING
If the supplemental air bag warning light
is on, it could mean that the front air
bag, side air bag, curtain air bag and/or
pretensioner systems will not operate in
an accident. To help avoid injury to
yourself or others, have your vehicle
checked as soon as possible. It is recom-
mended you visit an INFINITI retailer for
this service.
REPAIR AND REPLACEMENT
PROCEDURE
The front air bags, side air bags, curtain air
bags and pretensioners are designed to
activate on a one-time-only basis. As a
reminder, unless it is damaged, the supple-
mental air bag warning light will remain
illuminated after inflation has occurred.
These systems should be repaired and/or
replaced as soon as possible. It is recom-
mended you visit an INFINITI retailer for this
service.
When maintenance work is required on the
vehicle, the front air bags, side air bags,
curtain air bags, pretensioners and related
parts should be pointed out to the person
conducting the maintenance. The ignition
switch should always be in the LOCK
position when working under the hood or
inside the vehicle.
WARNING
. Once a front air bag, side air bag, or
curtain air bag has inflated, the air
bag module will not function again
and must be replaced. Additionally,
the activated pretensioner must also
be replaced. The air bag module and
pretensioner should be replaced. It is recommended you visit an INFINITI
retailer for this service. However, the
air bag module and pretensioner
system cannot be repaired.
. The front air bag, side air bag, curtain
air bag and the pretensioner system
should be inspected if there is any
damage to the front end or side
portion of the vehicle. It is recom-
mended you visit an INFINITI retailer
for this service.
. If you need to dispose of the supple-
mental air bag or pretensioner or
scrap the vehicle, it is recommended
you visit an INFINITI retailer. Correct
supplemental air bag and seat belt
pretensioner system disposal proce-
dures are set forth in the appropriate
INFINITI Service Manual. Incorrect
disposal procedures could cause per-
sonal injury.
. If there is an impact to your vehicle
from any direction, your Occupant
Classification Sensor (OCS) should be
checked by an INFINITI retailer to
verify it is still functioning correctly.
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 improper air
bag deployment resulting in injury or

2-8Instruments and controls
JVI0638X
TACHOMETER
The tachometer indicates engine speed in
revolutions per minute (RPM).Do not rev
the engine into the red zone
.
The scale length and the red zone vary with
the engine model.
CAUTION
When engine speed approaches the red
zone, shift to a higher gear or reduce
engine speed. Operating the engine in
the red zone may cause serious engine
damage.
JVI0639X
ENGINE COOLANT TEMPERA-
TURE GAUGE
The gauge indicates the engine coolant
temperature.
The engine coolant temperature is within the
normal range when the gauge needle points
within the zone
shown in the illustration.
The engine coolant temperature varies with
the outside air temperature and driving
conditions.
CAUTION
If the gauge indicates the engine coolant
temperature is near the hot (H) end of
the normal range, reduce vehicle speed
to decrease the temperature. If the
gauge is over the normal range, stop
the vehicle as soon as safely possible and
let the engine idle. If the engine is
overheated, continued operation of the
vehicle may seriously damage the engine.
See “If your vehicle overheats” (P.6-16)
for immediate action required.

When the power steering warning light
illuminates with the engine running, the
power assist to the steering will cease
operation but you will still have control of
the vehicle. At this time, greater steering
efforts are required to operate the steering
wheel, especially in sharp turns and at low
speeds.
See “Electric power steering type” (P.5-127).
Seat belt warning light and
chime
The light and chime remind you to fasten
seat belts. The light illuminates whenever
the ignition switch is pushed to the ON
position, and will remain illuminated until the
driver’s seat belt is fastened. At the same
time, the chime will sound for about 6
seconds unless the driver’s seat belt is
securely fastened.
The seat belt warning light for the front
passenger will illuminate if the seat belt is
not fastened when the front passenger’s
seat is occupied.
See “Seat belts” (P.1-12) for precautions on
seat belt usage.
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
operate in an accident. To help avoid
injury to yourself or others, have your
vehicle checked. It is recommended you
visit an INFINITI retailer for this service.
Vehicle Dynamic Control
(VDC) warning light
When the ignition switch is in the ON
position, the Vehicle Dynamic Control
(VDC) warning light illuminates and then
turns off.
The light will blink when the VDC system or
the traction control system is operating, thus
alerting the driver that the vehicle is nearing
its traction limits. The road surface may be
slippery.
When the VDC warning light illuminates
when the VDC system is turned on, this light
alerts the driver to the fact that the VDC
system’s fail-safe mode is operating, for
example the VDC, active trace control func-
Instruments and controls2-15

2-28Instruments and controls
See “Idling Stop System” (P.5-137) for more
details.
5. Total fuel saved and engine stop
time
The total fuel saved and engine stop time
(Idling Stop System) mode shows amount of
fuel saved and the engine stop time since the
last reset.
.The estimated quantity of saved fuel
. The time that the engine has been
stopped for by the Idling Stop System
The fuel saved and engine stop time can be
reset by pushing the
orswitch for
longer than 1 second.
See “Idling Stop System” (P.5-137) for more
details.
6. Current fuel consumption and
average fuel consumption (MPG, l
(liter)/100 km or km/l)
Current fuel consumption:
The current fuel consumption mode shows
the current fuel consumption.
Average fuel consumption:
The average fuel consumption mode shows
the average fuel consumption since the last
reset. Resetting is done by pushing the
orswitch for longer than 1 second. The average fuel consumption is also reset
on the lower display. See the Infiniti InTouch
Owner’s Manual.
The display is updated every 30 seconds. At
about the first 1/3 mile (500 m) after a
reset, the display shows “——”.
7. Navigation (if so equipped)
When the route guidance is set in the
navigation system, this item shows the
navigation route information.
For more details, see the Infiniti InTouch
Owner’s Manual.
8. Audio
The audio mode shows the status of audio
information.
For more details, see the Infiniti InTouch
Owner’s Manual.
9. Driving aids (if so equipped)
The driving aids mode shows the operating
condition for the following systems.
.
Lane Departure Warning (LDW)
. Lane Departure Prevention (LDP)
. Blind Spot Warning (BSW)
. Blind Spot Intervention® (BSI)
. Distance Control Assist (DCA)
. Forward Emergency Braking (FEB) .
Predictive Forward Collision Warning
(PFCW)
For more details, see “Lane Departure
Warning (LDW)/Lane Departure Prevention
(LDP)” (P.5-34), “Blind Spot Warning
(BSW)” (P.5-41), “Blind Spot Intervention®
(BSI)” (P.5-49), “Distance Control Assist
(DCA)” (P.5-94), “Forward Emergency Brak-
ing (FEB)” (P.5-105) and “Predictive For-
ward Collision Warning (PFCW)” (P.5-112).
10. Tire pressure
The tire pressure mode shows the pressure
of all four tires while the vehicle is driven.
When the “Tire Pressure Low - Add Air” or
“Flat Tire - Visit dealer” (if so equipped)
warning appears, the display can be
switched to the tire pressure mode by
pushing the
orswitch.
The tire pressure unit can be changed in the
[TPMS setting] under the [Settings] menu
on the lower display. (See the Infiniti InTouch
Owner’s Manual.)
NOTE:
After the ignition switch is placed in the ON
position, it may take a period of time for the
tire pressure to be displayed while the
vehicle is driven. Depending on the radio
wave circumstance, tire pressure may not
correctly be displayed.

11. Chassis control
When Active Lane Control (if so equipped) or
the active trace control system is operated, it
shows the operating condition. See “Active
Lane Control” (P.5-26) and “Active trace
control” (P.5-134) for more details.
12. Oil control system (for
VR30DDTT engine models)
Engine oil information informs the distance
to oil change.
Distance to oil change:
The distance to oil change is displayed if the
distance to oil change comes to be less than
940 miles (1,500 km).
Oil replacement indicator:
When the set mileage approaches, the
engine oil replacement indicator will appear
on the display. After the oil is changed, reset
the oil control system by pushing the
orswitch for longer than 1 second.
The oil change interval cannot be adjusted
manually. The distance to oil change interval
is calculated depending on the driving con-
ditions and set automatically by the oil
control system.
CAUTION
If the oil replacement indicator is dis-
played, change the engine oil as soon as
possible. Operating your vehicle with
deteriorated oil can damage the engine.
Warning check
The present warnings are displayed. If no
warning is present, “No Warning” is dis-
played.
JVI0679M
CLOCK AND OUTSIDE AIR TEM-
PERATURE
The clockand outside air temperatureare displayed on the upper side of the vehicle
information display.
Clock
The clock can be adjusted on the lower
display. See the Infiniti InTouch Owner’s
Manual.
Outside air temperature (°F or °C)
The outside air temperature is displayed in °F
or °C in the range of −22 to 131°F (−30 to
55°C).
Instruments and controls2-29

2-42Instruments and controls
SIC3272
FOG LIGHT SWITCH
To turn the fog lights on, turn the headlight
switch to theposition, then turn the
switch to theposition. To turn them off,
turn the switch to the OFF position.
The headlights must be on with the low
beams selected for the fog lights to operate.
The fog lights automatically turn off when
the high beam headlights are selected.
JVI1491X
To sound the horn, push the center pad area
of the steering wheel.
WARNING
Do not disassemble the horn. Doing so
could affect proper operation of the
supplemental front air bag system. Tam-
pering with the supplemental front air
bag system may result in serious perso-
nal injury.
SIC4336
The vehicle should be driven with the Vehicle
Dynamic Control (VDC) system on for most
driving conditions.
If the vehicle is stuck in mud or snow, the
VDC system reduces the engine output to
reduce wheel spin. The engine speed will be
reduced even if the accelerator is depressed
to the floor. If maximum engine power is
needed to free a stuck vehicle, turn the VDC
system off.
To turn off the VDC system, push the VDC
OFF switch. The
indicator light will
illuminate.
Push the VDC OFF switch again or restart
the engine to turn on the system. (See
“Vehicle Dynamic Control (VDC) system”
HORN VEHICLE DYNAMIC CONTROL
(VDC) OFF SWITCH