2018 INFINITI Q70 HYBRID engine coolant

Hybrid System-4Hybrid System Overview
delivered to an INFINITI retailer to
have the Li-ion battery pack and high
voltage parts such as the inverter,
including the wiring harness, re-
moved prior to painting. Li-ion bat-
tery packs exposed to heat in the
paint booth will experience capacity
loss. Damaged Li-ion battery packs
may also pose safety risks to un-
trained mechanics and repair person-
nel.The emergency shut-off system is activated
and the high-voltage system automatically
turns off in the following conditions:
.
Front and side collisions in which the air
bags are deployed.
. Certain rear collisions.
. Certain INFINITI Direct Response Hy-
brid
®System malfunctions
For the above collisions and the certain
hybrid system malfunctions, the READY to
drive indicator light will turn off. See “Warn-
ing lights, indicator lights and audible re-
minders” (P.2-10).
The emergency shut-off activates for the
above collisions to minimize risk of an event
that could cause injury or an accident. If the
emergency shut-off system activates, the
hybrid system may not switched to READY
to drive position, it is recommended that you
contact an INFINITI retailer. Even if the
ignition switch is switched to READY to
drive position, the system may shut-off
suddenly. Therefore, drive cautiously to the
nearest INFINITI retailer or contact an
INFINITI retailer as soon as possible. To start the INFINITI Direct Response
Hybrid
®System:
1. Depress the brake pedal and place the ignition switch in the ON position when
the transmission is in the P (Park) or N
(Neutral) position (P is recommended).
(For more details, see “Push-button
ignition switch” (P.5-9).)
2. The READY to drive indicator light
flashes, then turns illuminated. (The
hybrid system switched to the READY
to drive mode when the indicator light
illuminates.)
When the READY to drive indicator light
illuminates, the vehicle can be driven, even if
the gasoline engine is not running.
NOTE:
The gasoline engine starts and stops auto-
matically. It may stop during low speed
driving, deceleration or when the vehicle is
stopped.
The gasoline engine may automatically run
in the following conditions:
. The level of remaining charge in the
Lithium ion (Li-ion) battery is low. The
engine runs to charge the Li-ion battery
and to provide power to the drive the
vehicle.
. The temperature of the engine coolant is
low.
EMERGENCY SHUT-OFF SYSTEMOPERATION OF THE HYBRID SYSTEM

0-10Illustrated table of contents
JVM0034X
VQ35HR ENGINE
1. Engine oil filler cap (P.8-8)
2. Brake fluid reservoir (P.8-12)
3. Fuse/fusible link holder (P.8-19)
4. Window washer fluid reservoir (P.8-12)
5. Power steering fluid reservoir (P.8-11)
6. Inverter coolant reservoir (P.8-7)
7. Air cleaner (P.8-16)
8. Radiator filler cap (P.8-5)
9. Engine oil dipstick (P.8-8)
10. Engine coolant reservoir (P.8-5)
ENGINE COMPARTMENT

2-14Instruments and controls
designed to indicate a low oil level. Use the
dipstick to check the oil level.(See “Engine
oil” (P.8-8).)
CAUTION
Running the engine with the engine oil
pressure warning light on could cause
serious damage to the engine almost
immediately. Such damage is not cov-
ered by warranty. Turn off the engine as
soon as it is safe to do so.
Forward Emergency Braking
(FEB) system warning light (if so
equipped)
This light comes on when the ignition switch
is placed in the ON position. It turns off after
the hybrid system is started.
This light illuminates when the Forward
Emergency Braking (FEB) system is set to
OFF on the center 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.5-101) for more details.
This light will also illuminates if the Active
Trace Control is malfunctioning. Although the vehicle is still driveable under normal
conditions, have the vehicle checked. It is
recommended you visit an INFINITI retailer
for this service. (See “Vehicle Dynamic Con-
trol (VDC) system” (P.5-122).)
High temperature warning
light
When the ignition switch is in the ON
position, the high temperature warning light
illuminates and then turns off. This indicates
that the high temperature sensor in the
engine coolant system is operational.
CAUTION
If the high temperature warning light
illuminates when the ignition switch is in
the ON position, it may indicate the
engine temperature is extremely high.
Stop the vehicle safety as soon as
possible.
If the vehicle is overheated, continuing
vehicle operation may seriously damage
the engine. (See “If your vehicle over-
heats” (P.6-12) for the immediate action
required.)
Hybrid EPS (Electrical Power
Steering) warning light
When the ignition switch is in the ON
position, the Hybrid EPS (Electrical Power
Steering) warning light illuminates. After
starting the hybrid system, the Hybrid EPS
warning light turns off. This indicates that
the electrical power steering system is
operational.
If the Hybrid EPS warning light illuminates
while the hybrid system is running, it may
indicates the Hybrid EPS system is not
functioning properly and may need servicing.
Have the Hybrid EPS system checked. It is
recommended you visit an INFINITI retailer
for this service.
When the Hybrid EPS warning light illumi-
nates with the hybrid system 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. However, if the steering wheel
operation is still performed, the Hybrid EPS
may stop and the Hybrid EPS warning light
will illuminate. Place the ignition switch in
the OFF position. For a while after it refrains
from the steering wheel control, the tem-
perature of the Hybrid EPS system will go

odometer and twin trip odometer?Current
fuel consumption ?Average fuel consump-
tion and speed ?Elapsed time and trip
odometer ?Distance to empty (dte) ?
Engine coolant temperature gauge? Out-
side air temperature (ICY) ?Setting ?
Warning check
1. Energy monitor
The energy flow related to the hybrid system
is shown by the arrow symbols.
: Li-ion battery
: Engine
shows the charge level of the Li-ion
battery.
+ : Charge level is high
- : Charge level is low
The charge level display will continuously
change as the Li-ion battery charge level
increase or decreases during normal vehicle
operation. Movement of the display from
the far right to the far left of the bar is
normal.
The energy monitor is also displayed on the
center display. (See “Energy monitors” (P.
Hybrid System-5).)
2. Li-ion battery state of charge and
acceleration guide
Li-ion battery state of charge:
This displays the remaining charge in the Li-
ion battery.
The charge level display will continuously
change as the Li-ion battery charge level
increase or decrease during normal vehicle
operation. Movement of the display from
the far right to the far left of the bar is
normal.
This works in conjunction with the remaining
battery display on the center display.
Acceleration guide:
This display provides the driver a visual
display of how efficiently the vehicle is being
driven based on accelerator pedal position.
When the drive mode is set to ECO using the
INFINITI Drive Mode Selector, the accelera-
tion guide operates with the ECO drive
indicator and ECO pedal (if so equipped) to
help you improve fuel economy. (See “ECO
drive indicator light” (P.2-18), “INFINITI
Drive Mode Selector” (P.5-19) and “ECO
pedal system” (P.5-20).)
JVI0258X
: Economy range
: Power range
: Accelerator pedal position indicator
Instruments and controls2-29

time.)
7. Distance to empty (dte — mls or
km)
The distance to empty (dte) mode provides
you with an estimation of the distance that
can be driven before refueling. The dte is
constantly being calculated, based on the
amount of fuel in the fuel tank and the actual
fuel consumption.
The display is updated every 30 seconds.
The dte mode includes a low range warning
feature. If the fuel level is low, the warning is
displayed on the screen.
When the fuel level drops even lower, the
dte display will change to “——”.
.If the amount of fuel added is small, the
display just before the ignition switch is
pushed to the OFF position may con-
tinue to be displayed.
. When driving uphill or rounding curves,
the fuel in the tank shifts, which may
momentarily change the display.
8. Engine coolant temperature
gauge
The gauge indicates the engine coolant
temperature.
This displays the temperature of the engine
coolant. The range of coolant overheat is indicated by the horizontal line of the upper
part of the H mark.
The engine coolant temperature varies with
the outside air temperature and driving
conditions.
CAUTION
If the engine is overheated, continued
operation of the vehicle may seriously
damage the engine. See “If your vehicle
overheats” (P.6-12) for immediate ac-
tion required.
9. Outside air temperature (ICY — °F
or °C)
The outside air temperature is displayed in °F
or °C in the range of −22 to 140°F (−30 to
60°C).
The outside air temperature mode includes a
low temperature warning feature. If the
outside air temperature is below 37°F
(3°C), the warning is displayed on the screen.
The outside temperature sensor is located in
front of the radiator. The sensor may be
affected by road or engine heat, wind
directions and other driving conditions. The
display may differ from the actual outside
temperature or the temperature displayed
on various signs or billboards.
10. Setting
Setting is available while the hybrid system
is running.
Setting cannot be made while driving. A
message “Setting can only be operated
when stopped” is also displayed on the
vehicle information display.
The
switchandswitchare used
in the setting mode to select and decide a
menu.
SKIP:
Push the
switchto move to the
warning check mode.
Push the
switchto select other
menus.
ALERT:
There are the following submenus under the
alert menu.
. BACK
Select this submenu to return to the top
page of the setting mode.
. TIMER
Select this submenu to specify when the
“TIMER” indicator activates.
. ICY
Select this submenu to display the low
outside temperature warning.
Instruments and controls2-31

4-36Monitor, climate, audio, phone and voice recognition systems
JVH1747X
Operations on touch panel screen
Climate control settings can be operated on
the touch panel screen.
Push the “CLIMATE” button and turn the
display to the Climate screen.
For details of the touch panel operation on
the center display, see the separate Infiniti
InTouch Owner’s Manual.
The following operations are available with
the touch panel screen.
Available items:
.
Touch to change the air flow mode.
When the DUAL mode (passenger sidetemperature control) is on, the “
”
icons for both driver’s and passenger’s
seat are displayed and can change the air
flow mode independently.
. -
/+
Touch to change the fan speed of the air
from the ventilators.
. A/C
Touch to turn the air conditioner on/off.
. DUAL
Touch to turn the DUAL mode (passen-
ger side temperature control) on/off.
. Upper Vent
Touch to turn the upper vent system on/
off.
Automatic upper ventilator system:
In this mode, air from the center ventilators
flows both straight and upward in order to
control the cabin temperature without blow-
ing air directly on the occupants.
1. Push the “CLIMATE” button with the climate control system turned on to
display the Climate screen.
2. Select the “Upper Vent” key, and the indicator on the screen will illuminate.
The air flow against the driver’s or
passenger’s upper body becomes gentle.
. Distribution between straight and up-
ward flows is determined automatically
by the climate control system. If you prefer strong air flow against your upper
body, select the “Upper Vent” key to turn
the indicator light off.
. When the outside temperature decreases
to approximately 14°F (−10°C), the
“Upper Vent” function does not activate.
The “Upper Vent” function reactivates
automatically when ambient tempera-
ture is 14°F (−10°C) or more.
OPERATING TIPS
When the engine coolant temperature and
outside air temperature are low, the air flow
from the foot outlets may not operate. This
is not a malfunction. After the coolant
temperature warms up, air will flow normally
from the foot outlets.

Brake assist...................................................................... 5-121Brake assist................................................................ 5-121
Anti-lock Braking System (ABS) .......................... 5-121
Vehicle Dynamic Control (VDC) system.................. 5-122
Active trace control (if so equipped)................... 5-123
Rise-up and build-up............................................... 5-123
Brake force distribution.......................................... 5-123
Hill Start Assist system ............................................... 5-124 Cold weather driving.................................................... 5-125
Freeing a frozen door lock................................... 5-125
Antifreeze ................................................................. 5-125
12-volt battery........................................................ 5-125
Draining of coolant water.................................... 5-125
Tire equipment ........................................................ 5-125
Special winter equipment..................................... 5-125
Driving on snow or ice .......................................... 5-125
Engine block heater (if so equipped)................. 5-126
Active noise cancellation............................................. 5-127

.Make sure the area around the vehicle is
clear.
. Check fluid levels such as engine oil,
coolant, brake fluid and window washer
fluid as frequently as possible, or at least
whenever you refuel.
. Check that all windows and lights are
clean.
. Visually inspect tires for their appearance
and condition. Also check tires for proper
inflation.
. Lock all doors.
. Position seat and adjust head restraints.
. Adjust inside and outside mirrors.
. Fasten seat belts and ask all passengers
to do likewise.
. Check the operation of warning lights
when the ignition switch is pushed to the
ON position. (See “Warning lights, in-
dicator lights and audible reminders”
(P.2-10).) 1. Apply the parking brake.
2. Move the shift lever to P (Park) position.
The INFINITI Direct Response Hybrid
®
System is designed not to operate if the
shift lever is not in the P (Park) position.
3. Depress the brake pedal and push the ignition switch to start the hybrid sys-
tem. The READY to drive indicator light
will illuminate on the meter.
When starting the hybrid system at very
low outside temperatures, the READY
to drive indicator light will flash and it
may take longer for the READY to drive
indicator light to illuminate.
. The hybrid system may not start even
with the READY to drive indicator light
illuminated. Once the READY to drive
indicator light is illuminated you may
begin driving the vehicle.
. You may hear a sound in the engine
compartment when the brake pedal is
depressed with the hybrid system off.
This does not indicate a problem.
NOTE:
Care should be taken to avoid situations
that can lead to potential 12-volt battery
discharge and potential no-start conditions
such as:
1. Installation or extended use of electro-
nic accessories that consume 12-volt battery power when the engine is not
running (Phone chargers, GPS, DVD
players, etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the 12-volt battery may
need to be charged to maintain 12-volt
battery health.
Starting and driving5-13
BEFORE STARTING THE INFINITI
DIRECT RESPONSE HYBRID®SYSTEM
STARTING THE INFINITI DIRECT
RESPONSE HYBRID®SYSTEM