2018 INFINITI Q50 HYBRID stop start

ler. (See “Brake fluid” (P.8-12).)
2. If the brake fluid level is correct, have the warning system checked. It is recom-
mended you have this service performed
by an INFINITI retailer.
Brake system malfunction warning:
If the brake warning light (red) and the
following warning light illuminate at the
same time when the parking brake is re-
leased and the brake fluid level is sufficient,
there may be a malfunction in the brake
system.
. Brake system warning light (yellow)
WARNING
If both the brake system warning light
(yellow) and the brake warning light
(red) illuminate when the parking brake
is released and the hybrid system is on,
do not drive the vehicle. More brake
pedal effort than normal will be required
and there will be a significant reduction
in brake performance, which could result
in an accident. Immediately stop the
vehicle in a safe location and it is
recommended you contact an INFINITI
retailer.
A chime sounds if a malfunction occurs in the brake system power supply.
.
Anti-lock Braking System (ABS) warning
light
— Avoid driving at high speed and sud-
den braking, and see an INFINITI
retailer as soon as possible for an
inspection.
WARNING
.Your brake system may not be work-
ing properly if the brake warning
light (red) is on. Driving could be
dangerous. If you judge it to be safe,
drive carefully to the nearest service
station for repairs. Otherwise, have
your vehicle towed because driving it
could be dangerous.
. Pressing the brake pedal with the
hybrid system stopped and/or low
brake fluid level may increase your
stopping distance and braking will
require greater pedal effort as well as
pedal travel.
. If the brake fluid level is below the
minimum or MIN mark on the brake
fluid reservoir, do not drive until the
brake system has been checked. It is
recommended you visit an INFINITI
retailer for this service.
Direct Response Hybrid®Sys-
tem warning light
When the ignition switch is in the ON
position, the Direct Response Hybrid®Sys-
tem (hybrid system) warning light illumi-
nates. After starting the hybrid system, the
hybrid system warning light turns off.
If the hybrid system warning light illuminates
while driving, it may indicate that there is a
malfunction in the electric motor and/or
other hybrid system components.
Stop your vehicle immediately and it is
recommended that you contact your
INFINITI retailer.
If the hybrid system warning light blinks
while driving, it may indicate that the Li-ion
battery charge is low and you cannot
continue to drive.
Do not allow the vehicle to coast when the
Li-ion battery is low or when the hybrid
system warning light blinks while driving.
The engine will not automatically start to
charge the Li-ion battery while the vehicle is
coasting.
Forward Emergency Braking
(FEB) system warning light
This light comes on when the ignition switch
is placed in the ON position. It turns off after
Instruments and controls2-11

2-12Instruments and controls
the hybrid system is started.
This light illuminates when the FEB system is
set to OFF on the lower display.
If the light illuminates when the FEB system
is ON, it may indicate that the system is
unavailable. See “Forward Emergency Brak-
ing (FEB)” (P.5-104) for more details.
Low fuel warning light
This light illuminates when the fuel in the
tank is getting low. Refuel as soon as it is
convenient, preferably before the fuel gauge
reaches the 0 (empty) position.
There will be a small reserve of fuel remain-
ing in the tank when the fuel gauge reaches
the 0 position.
Low tire pressure warning light
Your vehicle is equipped with a Tire Pressure
Monitoring System (TPMS) that monitors
the tire pressure of all tires.
The low tire pressure warning light warns of
low tire pressure and flat tire, or indicates
that the TPMS is not functioning properly.
After the ignition switch is placed in the ON
position, this light illuminates for about 1
second and turns off.Low tire pressure warning:
If the vehicle is being driven with low tire
pressure, the warning light will illuminate.
The “Tire Pressure Low - Add Air” warning
also appears in the vehicle information dis-
play.
When the low tire pressure warning light
illuminates, you should stop and adjust the
tire pressure to the recommended COLD tire
pressure shown on the Tire and Loading
Information label. The low tire pressure
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 is
active as long as the low tire pressure
warning light remains illuminated.
For additional information, see “Vehicle
information display” (P.2-18), “Tire Pressure
Monitoring System (TPMS)” (P.5-5) and
“Tire Pressure Monitoring System (TPMS)”
(P.6-3).
Flat tire warning:
The flat tire warning warns of a flat tire.
If the vehicle is being driven with one or moreflat tires, the low tire pressure warning light
will illuminate continuously and a chime will
sound for 10 seconds. A “Flat Tire - Visit
dealer” warning also appears in the vehicle
information display.
The chime will only sound at the first
indication of a flat tire and the warning light
will illuminate continuously. When the flat
tire warning is activated, have the system
reset and the tire checked, and replaced if
necessary. It is recommended you visit an
INFINITI retailer for these services. Even if
the tire is inflated to the specified COLD tire
pressure, the warning light will continue to
illuminate until the system is reset.
Your vehicle can be driven for a limited time
on a flat tire. See “Run-flat tires” (P.6-4) and
“Run-flat tires” (P.8-34).
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 the 1 minute. Have the
system checked. It is recommended 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 Pres-
sure Monitoring System (TPMS)” (P.5-5).

2-14Instruments and controls
.SHIFT “P” warning
. Shift to Park - Li-ion battery low warning
. Shift to Park - Press brake and start
warning
. PUSH warning
. Key ID Incorrect warning
. Parking brake release warning
. Low washer fluid warning
. Door/trunk open warning
. Loose Fuel Cap warning
. Tire Pressure Low - Add Air warning
. Flat Tire - Visit dealer warning
. All-Wheel Drive (AWD) warning (if so
equipped)
. Headlight warning
. Hybrid system overheat warning
. Low oil pressure warning
. High temperature warning
. Adaptive Front lighting System (AFS)
warning (if so equipped)
. Intelligent Key system warning
. Chassis control warning
See “Vehicle information display” (P.2-18).
If the driver assist system warnings appear
in the vehicle information display, the master
warning light also illuminates. See “Lane
Departure Warning (LDW)/Lane Departure
Prevention (LDP)” (P.5-32), “Blind Spot
Warning (BSW)” (P.5-39), “Blind Spot Inter- vention®(BSI)” (P.5-47), “Back-up Collision
Intervention (BCI)” (P.5-59), “Distance Con-
trol Assist (DCA)” (P.5-93), “Forward Emer-
gency Braking (FEB)” (P.5-104) and
“Predictive Forward Collision Warning
(PFCW)” (P.5-112).
Power steering warning light
When the ignition switch is in the ON
position, the power steering warning light
illuminates. After starting the hybrid system,
the power steering warning light stays on for
a few seconds and turns off. This indicates
that Direct Adaptive Steering is operational.
Drive the vehicle after the power steering
warning light turns off.
If the power steering warning light illumi-
nates while driving, pull off the road to a
safe location and stop the vehicle. If the
power steering warning light turns off, you
can drive again. If the power steering
warning light continues to illuminate, it is
recommended you have Direct Adaptive
Steering checked by an INFINITI retailer.
(See “Power steering” (P.5-126).)
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.1-9) 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-

2-20Instruments and controls
INDICATORS FOR OPERATION
1. Hybrid system start operation
indicator
This indicator appears when the shift lever is
in the P (Park) position.
This indicator means that the INFINITI
Direct Response Hybrid
®System will start
by pushing the ignition switch with the brake
pedal depressed. You can start the hybrid
system directly in any position of the ignition
switch.
2. NO KEY warning
The warning appears when the door is
closed with the Intelligent Key left outside
the vehicle and the ignition switch in the
ACC or ON position. Make sure that the
Intelligent Key is inside the vehicle.
See “Intelligent Key system” (P.3-6) for more
details.
3. SHIFT “P” warning
This warning will appear in the following
conditions.
. When the shift lever is in any position
except P (Park) and the push button
ignition switch has been placed in the
OFF position from the ON position. .
When the shift lever is operated while the
READY to drive indicator light is flashing.
. The driver’s door is opened with the shift
lever in “N”, “D” or “R”.
. When the vehicle cannot be driven be-
cause the hybrid system temperature has
become too high.
. When the engine stops due to sudden
deceleration on a cold winter day.
. If a malfunction occurs in a situation
other than those described above and
the engine cannot start automatically.
When this warning appears, place the shift
lever in the P (Park) position.
When the SHIFT “P” warning appears, a
buzzer will sound.
This warning will turn off in the following
conditions.
. When the shift lever has been placed in
the P (Park) position.
. When the ignition switch has been
pushed to ON.4. Shift to Park - Li-ion battery low
warning
This warning appears when the shift lever is
in the “N” position and level of remaining
charge in the Li-ion battery is low.
When this warning appears, place the shift
lever in the P (Park) position. This will turn off in the following conditions.
.
When the shift lever has been placed in
the P (Park) position.
5. Shift to Park - Press brake and
start warning
This warning appears after the hybrid sys-
tem was automatically turned off if the level
of remaining charge in the Li-ion battery is
low.
When this warning appears, place the shift
lever in the P (Park) position and restart the
hybrid system.
6. “PUSH” warning
This warning appears when the shift lever is
moved to the P (Park) position with the
ignition switch in the ACC position after the
SHIFT “P” warning appears.
To push the ignition switch to the OFF
position, perform the following procedure:
. SHIFT “P” warning ?(Move the shift
lever to “P”) ?PUSH warning ?(Push
the ignition switch ?ignition switch
position is turned to ON) ?PUSH
warning ?(Push the ignition switch ?
ignition switch position is turned to OFF)

7. Intelligent Key battery discharge
indicator
This indicator appears when the Intelligent
Key battery is running out of power.
If this indicator appears, replace the battery
with a new one. (See “Intelligent Key battery
replacement” (P.8-21).)
8. Hybrid system start operation for
Intelligent Key system indicator
This indicator appears when the Intelligent
Key battery is running out of power and
when the Intelligent Key System and vehicle
are not communicating normally.
If this indicator appears, touch the ignition
switch with the Intelligent Key while depres-
sing the brake pedal. (See “Intelligent Key
battery discharge” (P.5-13).)
9. Remote engine start indicator
This indicator appears when the engine has
been started using the remote start function.
To start the vehicle, depress the brake pedal
and place the ignition switch in the ON
position.
For more details, see “Remote engine start”
(P.3-19).
10. Key ID Incorrect warning
This warning appears when the ignition
switch is pushed from the LOCK position
and the Intelligent Key cannot be recognized
by the system. You cannot start the hybrid
system with an unregistered key. Use the
registered Intelligent Key.
See “Intelligent Key” (P.3-2).
11. Parking brake release warning
This warning appears when the vehicle
speed is above 4 MPH (7 km/h) and the
parking brake is applied.
12. Low fuel warning
This warning appears when the fuel level in
the tank is getting low. Refuel as soon as it is
convenient, preferably before the fuel gauge
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.
13. 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-
13).)
14. 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.
15. Intelligent Key system warning
This warning appears if there is a malfunc-
tion in the Intelligent Key system.
If this warning appears while the hybrid
system is stopped, the hybrid system cannot
be started. If this warning appears while the
hybrid system 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.
16. Loose Fuel Cap warning
This warning appears when the fuel-filler
cap is not tightened correctly after the
vehicle has been refueled. (See “Fuel-filler
cap” (P.3-25).)
17. 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
Instruments and controls2-21

2-22Instruments and controls
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.2-12) and “Tire Pressure Monitoring
System (TPMS)” (P.5-5).)
18. Flat Tire - Visit dealer warning
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.2-12) and “Tire
Pressure Monitoring System (TPMS)” (P.5-
5).)
19. 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.8-9).)
20. High temperature warning
This warning appears when the engine
coolant temperature is extremely high.
CAUTION
If the high temperature warning appears
when the ignition switch is in the ON
position, stop the vehicle safely as soon
as possible.
If the vehicle is overheated, continuing
vehicle operation may seriously damage
the engine. (See “If your vehicle over-
heats” (P.6-8) for the immediate action
required.)
21. Hybrid system overheat warning
This warning appears when the temperature
of the hybrid system is extremely high. Stop
the vehicle in a safe location as soon as
possible. Avoid quick starting or abrupt
acceleration. When the warning turns off,
the vehicle can be driven.
If the warning appears again soon after it
turns off, it is recommended that you have
the vehicle checked by an INFINITI retailer.
WARNING
Do not hold the vehicle in a stopped
position on an uphill grade by depressing
the accelerator or by slowly creeping
forward. This may cause damage to the
transmission or the vehicle may enter
traffic causing serious injury or death.
Always use the brake pedal when stop-
ping on an uphill grade.
CAUTION
.If you continue to drive the vehicle
while the warning is displayed, the
vehicle may become undriveable. If
this occurs, place the shift lever in the
“P” position and wait for a short
period of time with the vehicle
stopped until the display goes out.
In this case, the warning will be
displayed alternately with the SHIFT
“P” warning. (See “3. SHIFT “P”
warning” (P.2-20).)
. Do not drive the vehicle with the
warning on. Doing so could cause a
hybrid system malfunction.

2-32Instruments and controls
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, power door lock switch or me-
chanical key. 5. Confirm that the security indicator light
comes 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 button on the
Intelligent Key, the door handle request
switch, one touch unlock sensor or the
mechanical key. (Even if the door is
opened by releasing the door inside lock
knob, 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, pushing the door handle request
switch, touching the one touch unlock
sensor or using the mechanical key. The
alarm will not stop if the ignition switch is
placed in the ACC or ON position.
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 INFINITI Direct Response
Hybrid
®System to start without the use of
the registered Intelligent Key. Never leave
these keys in the vehicle.

3-16Pre-driving checks and adjustments
JVP0409X
1. LOCK button
2. UNLOCK button
3. TRUNK button
4. PANIC button
5. Remote engine start button
HOW TO USE REMOTE KEYLESS
ENTRY SYSTEM
When you lock or unlock the doors or the
trunk lid, the hazard indicator will flash and
the horn (or the outside chime) will sound as
a confirmation. For details, see “Setting
hazard indicator and horn mode” (P.3-17).
Locking doors, trunk lid and fuel-
filler door
1. Push the ignition switch to the OFFposition and make sure you carry the
Intelligent Key with you.*1
2. Close all the doors.
3. Push the LOCK
buttonon the
Intelligent Key.
4. All the doors, trunk lid and fuel-filler door will lock.
5. The hazard indicator flashes twice and the horn chirps once.
*1: Doors will lock with the Intelligent Key while the ignition switch is in the ACC
or ON position.
Unlocking doors, trunk lid and fuel-
filler door
1. Push the UNLOCKbuttonon the
Intelligent Key once.
2. The hazard indicator flashes once. The driver’s door will unlock.
3. Push the UNLOCK
buttonon the
Intelligent Key again within 1 minute.
4. The hazard indicator flashes once again. All the doors, trunk lid and fuel-filler door
will unlock.
All doors, trunk lid and fuel-filler door will be locked automatically unless one of the
following operations is performed within 1
minute after pushing the UNLOCK
buttonon the Intelligent Key while
the doors are locked. If during this 1-minute
time period, the UNLOCK
buttonon
the Intelligent Key is pushed, all doors will be
locked automatically after another 1 minute.
. Opening any door
. Pushing the ignition switch
Opening windows
The UNLOCKbuttonoperation also
allows you to open the window that is
equipped with the automatic open/close
function. (See “Power windows” (P.2-52).)
To open the window, push the door UN-
LOCK
button on the Intelligent Key
for about 3 seconds after the door is
unlocked.
To stop opening, release the UNLOCK
button.
If the window open operation is stopped in
mid-operation while pushing the UNLOCK
button, release and push the UN-
LOCKbuttonagain until the window
opens completely.
Window cannot be closed using the Intelli-
gent Key.
The door window can also be operated by