2018 INFINITI Q50-HYBRID park assist

.Based on driving conditions.
. The shift lever is shifted to the P (Park)
position, the driver’s seat belt is re-
leased and the driver’s side door is then
opened.
The hybrid system operates as follows based
on driving conditions and the Li-ion battery
charge.
STARTING AND SLOW SPEED
DRIVING
The vehicle is driven by the electric motor
depending on the available Li-ion battery
charge.
MEDIUM OR HIGH SPEED DRIV-
ING
The system automatically controls the gaso-
line engine and electric motor in order to
obtain the optimum fuel mileage and per-
formance, depending on the driving situation
and available Li-ion battery charge.
When the remaining battery level is low, the
Li-ion battery is charged by the electric
motor that is driven to generate electric
power while the vehicle is driving.
RAPID ACCELERATION
The vehicle is accelerated using both the
gasoline engine and the electric motor
depending on the available Li-ion battery
charge.
DECELERATION AND BRAKING
The Li-ion battery is charged by the electric
motor that changes the energy of the
rotating wheels into electric power. See
“Regenerative brake” (P.Hybrid System-8).
STOPPING
The gasoline engine may stop running to
save fuel depending on the available Li-ion
battery charge. The INFINITI Direct Response Hybrid
®Sys-
tem monitors the status of power being sent
to the electric motor and the Lithium ion (Li-
ion) battery state of charge. The status is
shown on the assist charge gauge in the
meter and the energy flow/remaining Li-ion
battery charge in the lower display and the
meter. System status can also be shown
when the screen is in the energy flow mode
or energy/fuel history mode.
Hybrid System OverviewHybrid System-5
ENERGY MONITORS

12-volt battery charge warning lightMaster warning lightFront fog light indicator light
Anti-lock Braking System (ABS) warning
lightPower steering warning lightFront passenger air bag status light
Seat belt warning light and chimeHigh beam assist indicator light (if so
equipped)
Brake system warning light (yellow)Supplemental air bag warning lightHigh beam indicator light
Brake warning light (red)Vehicle Dynamic Control (VDC) warning
lightMalfunction Indicator Light (MIL)
Direct Response Hybrid®System warn-
ing lightApproaching Vehicle Sound for Pedes-
trians (VSP) OFF indicator lightREADY to drive indicator light
Forward Emergency Braking (FEB) sys-
tem warning lightECO drive indicator lightSecurity indicator light
Low fuel warning lightEV indicator lightTurn signal/hazard indicator lights
Low tire pressure warning lightExterior light indicatorVehicle Dynamic Control (VDC) off in-
dicator light
CHECKING LIGHTS
With all doors closed, apply the parking
brake, fasten the seat belts and place the
ignition switch in the ON position without
starting the INFINITI Direct Response Hy-
brid
®System. The following lights (if so
equipped) will come on:
,or(red),,,,
The following lights (if so equipped) come on
briefly and then go off:
,or,,,,,(yellow) If any light does not come on or operates in a
way other than described, it may indicate a
burned-out bulb and/or a system malfunc-
tion. It is recommended you have the system
checked by an INFINITI retailer.
Some indicators and warnings are also
displayed in the vehicle information display
between the speedometer and tachometer.
(See “Vehicle information display” (P.2-18).)
WARNING LIGHTS
12-volt battery charge warn-
ing light
When the ignition switch is in the ON
position, the 12-volt battery charge warning
light illuminates. After starting the hybrid
system, the light turns off.
If the light continues to illuminate after
starting the hybrid system, it may indicate
the charging system is not functioning
Instruments and controls2-9
WARNING LIGHTS, INDICATOR
LIGHTS AND AUDIBLE REMINDERS

2-10Instruments and controls
properly. It is recommended you visit an
INFINITI retailer immediately.
CAUTION
The charging system may not be func-
tioning properly if the 12-volt battery
charge warning light comes on while the
hybrid system is running. The hybrid
system will stop operating when the
12-volt battery becomes discharged.
Immediately stop the vehicle in a safe
place and it is recommended you contact
an INFINITI retailer.
orAnti-lock Braking
System (ABS) warning light
When the ignition switch is in the ON
position, the Anti-lock Braking System
(ABS) warning light illuminates and then
turns off. This indicates the ABS is opera-
tional.
If the ABS warning light illuminates while the
hybrid system is running, or while driving, it
may indicate the ABS is not functioning
properly. Have the system checked. It is
recommended you visit an INFINITI retailer
for this service. If an ABS malfunction occurs, the anti-lock
function is turned off. The brake system then
operates normally, but without anti-lock
assistance. (See “Anti-lock Braking System
(ABS)” (P.5-129).)
Brake system warning light
(yellow)
This light will illuminate after the hybrid
system is started and then turns off after a
few seconds.
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.
If the brake system warning light (yellow)
illuminates when the ignition switch is in the
ON position, it may indicate a malfunction in the brake system or one of the following
other functions.
.
Regenerative brake system
. Hill start assist system
. Rise-up and build-up function
It is recommended you see an INFINITI
retailer for an inspection as soon as possible.
A chime sounds if a malfunction occurs in the
brake system power supply.
orBrake warning light
(red)
This light functions for both the parking
brake and the foot brake systems.
Parking brake indicator:
When the ignition switch is in the ON
position, the light comes on when the
parking brake is applied.
Low brake fluid warning:
When the ignition switch is in the ON
position, the light warns of a low brake fluid
level. If the light comes on with the parking
brake not applied, stop the vehicle and
perform the following:
1. Check the brake fluid level. If brake fluid is low, add fluid and have the system
checked. It is recommended you have this
service performed by an INFINITI retai-

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-

2-16Instruments and controls
Exterior light indicator
This indicator illuminates when the headlight
switch is turned to the AUTO,orposition and the front parking lights, instru-
ment panel lights, rear combination lights,
license plate lights or headlights are on. The
indicator turns off when these lights are
turned off.
Front fog light indicator light
The front fog light indicator light illuminates
when the front fog lights are on. (See “Fog
light switch” (P.2-43).)
Front passenger air bag status
light
The front passenger air bag status light
() located on the instrument panel will be
lit and the passenger front air bag will be
OFF depending on how the front passenger
seat is being used.
For front passenger air bag status light
operation, see “INFINITI Advanced Air Bag
System (front seats)” (P.1-43).
High beam assist indicator
light (if so equipped)
The indicator light illuminates when the headlights come on while the headlight
switch is in the AUTO position with the high
beam selected. This indicates that the high
beam assist system is operational. (See
“High beam assist” (P.2-38).)
High beam indicator light
This light comes on when the headlight high
beam is on and goes out when the low beam
is selected.
Malfunction Indicator Light
(MIL)
If the Malfunction Indicator Light (MIL)
comes on steady or blinks while the engine
is running, it may indicate a potential emis-
sion control malfunction.
The malfunction indicator light may also
come on steady if the fuel-filler cap is loose
or missing, or if the vehicle runs out of fuel.
Check to make sure the fuel-filler cap is
installed and closed tightly, and that the
vehicle has at least 3 US gallons (11.4 liters)
of fuel in the fuel tank.
After a few driving trips, the
light should
turn off if no other potential emission
control system malfunction exists.
If this indicator light remains on for 20
seconds and then blinks for 10 seconds
when the engine is not running, it indicates that the vehicle is not ready for an emission
control system inspection/maintenance test.
(See “Readiness for Inspection/Mainte-
nance (I/M) test (US only)” (P.10-21).)
Operation:
The malfunction indicator light will come on
in one of two ways:
.
Malfunction indicator light on steady —
An emission control system malfunction
has been detected. Check the fuel-filler
cap if the Loose Fuel Cap warning
appears in the vehicle information dis-
play. If the fuel-filler cap is loose or
missing, tighten or install the cap and
continue to drive the vehicle. The
light should turn off after a few driving
trips. If thelight does not turn off
after a few driving trips, have the vehicle
inspected. It is recommended you visit an
INFINITI retailer for this service. You do
not need to have your vehicle towed to
the retailer.
. Malfunction indicator light blinking — An
engine misfire has been detected which
may damage the emission control sys-
tem.
To reduce or avoid emission control
system damage:
1) Do not drive at speeds above 45 MPH (72 km/h).

2-40Instruments and controls
JVI0670X
Ambient image sensor maintenance:
The ambient image sensor
for the high
beam assist system is located in front of the
inside mirror. To keep the proper operation
of the high beam assist system and prevent a
system malfunction, be sure to observe the
following:
. Always keep the windshield clean.
. Do not attach a sticker (including trans-
parent material) or install an accessory
near the ambient image sensor.
. Do not strike or damage the areas around
the ambient image sensor. Do not touch
the sensor lens that is located on the
ambient image sensor. If the ambient image sensor is damaged due
to an accident, it is recommended you
contact an INFINITI retailer.
Battery saver system
A chime will sound and the light reminder
warning will appear in the vehicle informa-
tion display when the driver side door is
opened with the light switch in the
orposition and the ignition switch in the
ACC, OFF or LOCK position.
When the headlight switch is in the
orposition while the ignition switch is in
the ON position, the lights will automatically
turn off after a period of time when the
ignition switch has been pushed to the OFF
position.
When the headlight switch remains in the
orposition after the lights auto-
matically turn off, the lights will turn on
when the ignition switch is pushed to the ON
position.
CAUTION
. When you turn on the headlight
switch again after the lights auto-
matically turn off, the lights will not
turn off automatically. Be sure to
turn the light switch to the OFF
position when you leave the vehicle for extended periods of time, other-
wise the 12-volt battery will be
discharged.
. Never leave the light switch on when
the INFINITI Direct Response Hy-
brid
®System is not running for a
period of time even if the headlights
turn off automatically.
Daytime running light system
The daytime running lights automatically
illuminate when the hybrid system is started
with the parking brake released. The day-
time running lights operate with the head-
light switch in the OFF, AUTO or
position. Turn the headlight switch to theposition for full illumination when driv-
ing at night.
If the parking brake is applied before the
hybrid system is started, the daytime run-
ning lights do not illuminate. The daytime
running lights illuminate once the parking
brake is released. The daytime running lights
will remain on until the ignition switch is
pushed to the OFF position.

System maintenance .............................................. 5-120
Break-in schedule .......................................................... 5-121
Fuel Efficient Driving Tips .......................................... 5-121
Increasing fuel economy .............................................. 5-122
Intelligent All-Wheel Drive (AWD) (if
so equipped) .................................................................... 5-123
Parking/parking on hills .............................................. 5-125
Power steering ............................................................... 5-126 Direct Adaptive Steering type .............................. 5-126
Brake system ................................................................. 5-128 Braking precautions ............................................... 5-128
Parking brake break-in ........................................... 5-129
Brake assist ..................................................................... 5-129 Brake assist ............................................................... 5-129
Anti-lock Braking System (ABS) .......................... 5-129
Vehicle Dynamic Control (VDC) system ................ 5-130 Rise-up and build-up .............................................. 5-131
Brake force distribution ......................................... 5-131 Active trace control ...................................................... 5-132
Hill Start Assist system .............................................. 5-134
Chassis control ............................................................. 5-134
Cold weather driving ................................................... 5-135
Freeing a frozen door lock .................................. 5-135
Antifreeze ................................................................. 5-135
12-volt Battery ....................................................... 5-135
Draining of coolant water ................................... 5-135
Tire equipment ........................................................ 5-135
Special winter equipment .................................... 5-135
Driving on snow or ice .......................................... 5-135
Engine block heater (if so equipped) ............... 5-136
Active noise cancellation/Active
sound enhancement ..................................................... 5-137
Active noise cancellation ..................................... 5-137
Active sound enhancement ................................. 5-137

5-20Starting and driving
JVS0246X
How to enable/disable the NAVI Shift
Control:
Perform the following steps to enable or
disable the NAVI Shift Control.
1. Push the MENU button
and touch
[Settings] on the lower display.
2. Touch [Drive Mode Enhancement].
3. Touch [Navi Shift Control] and select the ON (enabled) or OFF (disabled).
WARNING
.Be sure the parking brake is fully
released before driving. Failure to do
so can cause brake failure and lead to
an accident.
. Do not release the parking brake
from outside the vehicle.
. Do not use the gear shift in place of
the parking brake. When parking, be
sure the parking brake is fully en-
gaged.
. To help avoid risk of injury or death
through unintended operation of the
vehicle and/or its systems, do not
leave children, people who require the
assistance of others or pets unat-
tended in your vehicle. Additionally,
the temperature inside a closed ve-
hicle on a warm day can quickly
become high enough to cause a sig-
nificant risk of injury or death to
people and pets.
SPA2331
To apply: Fully depress the parking brake
pedal.
To release:
1. Firmly apply the foot brake
.
2. Depress the parking brake pedal
and
the parking brake will be released.
3. Before driving, be sure the brake warning light goes out.
PARKING BRAKE