engine INFINITI Q70 2019 Service Manual

WARNING
.Radio waves could adversely affect
electric medical equipment. Those
who use a pacemaker should contact
the electric medical equipment man-
ufacturer for the possible influences
before use.
. The Intelligent Key transmits radio
waves when the buttons are pushed.
The FAA advises that the radio
waves may affect aircraft navigation
and communication systems. Do not
operate the Intelligent Key while on
an airplane. Make sure the buttons
are not operated unintentionally
when the unit is stored during a
flight.
The Intelligent Key system can operate all
the doors and the trunk lid using the remote
controller function or pushing the request
switch on the vehicle without taking the key
out from a pocket or purse. The operating
environment and/or conditions may affect
the Intelligent Key system operation.
Be sure to read the following before using
the Intelligent Key system.
CAUTION
. Be sure to carry the Intelligent Key
with you when operating the vehicle.
. Never leave the Intelligent Key in the
vehicle when you leave the vehicle.
The Intelligent Key is always communicating
with the vehicle as it receives radio waves.
The Intelligent Key system transmits weak
radio waves. Environmental conditions may
interfere with the operation of the Intelligent
Key system under the following operating
conditions.
. When operating near a location where
strong radio waves are transmitted, such
as a TV tower, power station and broad-
casting station.
. When in possession of wireless equip-
ment, such as a cellular telephone,
transceiver, and CB radio.
. When the Intelligent Key is in contact
with or covered by metallic materials.
. When any type of radio wave remote
control is used nearby.
. When the Intelligent Key is placed near
an electric appliance such as a personal
computer. .
When the vehicle is parked near a parking
meter.
In such cases, correct the operating condi-
tions before using the Intelligent Key func-
tion or use the mechanical key.
Although the life of the battery varies
depending on the operating conditions, the
battery’s life is approximately 2 years. If the
battery is discharged, replace it with a new
one.
When the Intelligent Key battery is almost
discharged, see “Intelligent Key battery dis-
charge” (P.5-13) to start the engine.
Since the Intelligent Key is continuously
receiving radio waves, if the key is left near
equipment which transmits strong radio
waves, such as signals from a TV and
personal computer, the battery life may
become shorter.
For information regarding replacement of a
battery, see “Intelligent Key battery replace-
ment” (P.8-25).
For models with a steering wheel lock
mechanism: Because the steering wheel is
locked electrically, unlocking the steering
wheel with the ignition switch in the LOCK
position is impossible when the vehicle
battery is completely discharged. Pay special
attention that the vehicle battery is not
completely discharged.
Pre-driving checks and adjustments3-7
INTELLIGENT KEY SYSTEM

TROUBLESHOOTING GUIDE
SymptomPossible causeAction to take
When pushing the ignition
switch to stop the engine The SHIFT P warning appears on the
display and the inside warning chime
sounds continuously.
The shift lever is not in the P (Park)
position.
Shift the shift lever to the P (Park)
position.
When opening the driver’s door
to get out of the vehicle The inside warning chime sounds continu-
ously. The ignition switch is in the ACC
position.Push the ignition switch to the OFF
position.
When closing the door after
getting out of the vehicle The NO KEY warning appears on the
display, the outside chime sounds 3 times
and the inside warning chime sounds for a
few seconds.
The ignition switch is in the ACC or
ON position.
Push the ignition switch to the OFF
position.
The SHIFT P warning appears on the
display and the outside chime sounds
continuously. The ignition switch is in the ACC or
OFF position and the shift lever is not
in the P (Park) position.Move the shift lever to the P (Park)
position and push the ignition switch to
the OFF position.
When closing the door with the
inside lock knob turned to
LOCK The outside chime sounds for a few
seconds and all the doors unlock.
The Intelligent Key is inside the
vehicle or trunk.
Carry the Intelligent Key with you.
When pushing the request
switch or LOCK button on the
Intelligent Key to lock the door The outside chime sounds for a few
seconds. The Intelligent Key is inside the
vehicle or trunk.
Carry the Intelligent Key with you.
A door is not closed securely. Close the door securely.
When closing the trunk lid The outside chime sounds for approxi-
mately 10 seconds and the trunk lid opens.
The Intelligent Key is inside the trunk. Carry the Intelligent Key with you.
Pre-driving checks and adjustments3-13

Switching procedure:
To switch the hazard indicator and horn
(chime) operation, push the LOCK
and
UNLOCKbuttons on the Intelligent
Key simultaneously for more than 2 seconds.
. When the hazard indicator mode is set,
the hazard indicator flashes 3 times.
. When the hazard indicator and horn
mode is set, the hazard indicator flashes
once and the horn chirps once.
JVP0334X
1. Pull the hood lock release handlelocated below the instrument panel; the
hood will then spring up slightly.
2. Pull the lever
up at the front of the
hood with your fingertips and raise the
hood.
3. When closing the hood, slowly close the hood down to latch both the right and
left locks. Push the hood down to lock
the hood securely into place.
WARNING
.Make sure the hood is completely
closed and latched before driving.
Failure to do so could cause the hood
to fly open and result in an accident.
. If you see steam or smoke coming
from the engine compartment, to
avoid injury do not open the hood.
Pre-driving checks and adjustments3-17
HOOD

3-20Pre-driving checks and adjustments
the rear spoiler.
Always hold area
to open the trunk lid.
SPA2767
TRUNK RELEASE POWER CAN-
CEL SWITCH
When the switch located inside the glove
box is in the OFF position, the power to
the trunk lid will be canceled and the trunk lid
cannot be opened by the trunk lid release
switch, the trunk open request switch or the
TRUNK button on the Intelligent Key.
When you have to leave the vehicle with a
valet and want to keep your belongings safe
in the glove box and the trunk, push this
switch to OFF and lock the glove box with
the mechanical key. Then leave the vehicle
and the Intelligent Key with the valet and
keep the mechanical key with you. See “Keys” (P.3-2).
To connect the power to the trunk lid, push
the switch to the ON
position.
AUTO CLOSURE
If the trunk lid is pulled down to a partly open
position, the trunk lid will pull itself to the
closed position.
Do not apply excessive force when the auto
closure is operating. Excessive force applied
may cause the mechanism to malfunction.
CAUTION
.
The trunk lid will automatically close
from a partly open position. To avoid
pinching, keep hands and fingers
away from trunk lid opening.
. Do not let children operate the trunk
lid.
The auto closure may not function if the
battery is weak. If the auto closure does not
work, close the trunk lid manually, or per-
form the auto closure operation again after
starting the engine.
If the auto closure operation is performed
repeatedly with the trunk overloaded, the
auto closure may not operate properly.
Reduce the amount of items in trunk. If the

3-22Pre-driving checks and adjustments
SPA2735
OPENING THE FUEL-FILLER
DOOR
To open the fuel-filler door, unlock the fuel-
filler door by using one of the following
operations, then push the upper left side of
the door.
.Push the door handle request switch with
the Intelligent Key carried with you.
. Push the UNLOCK button on the Intel-
ligent Key.
. Insert the mechanical key into the door
lock cylinder and turn it to the rear of the
vehicle.
. Push the power door lock switch to the
UNLOCK position. To lock, close the fuel-filler door securely
and lock all doors by operating the door
handle request switch, the LOCK button on
the Intelligent Key, the mechanical key or the
power door lock switch.
FUEL-FILLER CAP
WARNING
.
Gasoline is extremely flammable and
highly explosive under certain condi-
tions. You could be burned or ser-
iously injured if it is misused or
mishandled. Always stop engine and
do not smoke or allow open flames or
sparks near the vehicle when refuel-
ing.
. Do not attempt to top off the fuel
tank after the fuel pump nozzle shuts
off automatically. Continued refuel-
ing may cause fuel overflow, resulting
in fuel spray and possibly a fire.
. Use only an original equipment type
fuel-filler cap as a replacement. It has
a built-in safety valve needed for
proper operation of the fuel system
and emission control system. An in-
correct cap can result in a serious
malfunction and possible injury. It
could also cause the malfunction indicator light to come on.
. Never pour fuel into the throttle body
to attempt to start your vehicle.
. Do not fill a portable fuel container in
the vehicle or trailer. Static electricity
can cause an explosion of flammable
liquid, vapor or gas in any vehicle or
trailer. To reduce the risk of serious
injury or death when filling portable
fuel containers:
— Always place the container on the ground when filling.
— Do not use electronic devices when filling.
— Keep the pump nozzle in contact with the container while you are
filling it.
— Use only approved portable fuel containers for flammable liquid.
CAUTION
. If fuel is spilled on the vehicle body,
flush it away with water to avoid
paint damage.
. Insert the cap straight into the fuel-
filler tube, then tighten until the fuel-
filler cap clicks. Failure to tighten the
FUEL-FILLER DOOR

4-32Monitor, climate, audio, phone and voice recognition systems
SAA3142
Front
SAA3012
RearOpen or close, and adjust the air flow
direction of ventilators.
: This symbol indicates that the ventilators
are closed.
: This symbol indicates that the ventilatorsare open.
WARNING
. The air conditioner cooling function
operates only when the engine is
running.
. Do not leave children or adults who
would normally require the support
of others alone in your vehicle. Pets
should not be left alone either. On
hot, sunny days, temperatures in a
closed vehicle could quickly become
high enough to cause severe or
possibly fatal injuries to people or
animals.
. Do not use the recirculation mode for
long periods as it may cause the
interior air to become stale and the
windows to fog up.
Start the engine and operate the automatic
climate control system.
VENTILATORS HEATER AND AIR CONDITIONER

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
TMOwner’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 side temperature 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.

5 Starting and driving
Precautions when starting and driving ...................... 5-4Exhaust gas (carbon monoxide) .............................. 5-4
Three-way catalyst ..................................................... 5-5
Tire Pressure Monitoring System (TPMS) ........... 5-5
Avoiding collision and rollover .................................. 5-7
Off-road recovery ....................................................... 5-8
Rapid air pressure loss ............................................... 5-8
Drinking alcohol/drugs and driving ....................... 5-9
Intelligent All-Wheel Drive (AWD) driving safety
precautions (AWD models) ...................................... 5-9
Push-button ignition switch ........................................ 5-10 Operating range for engine start function ........ 5-10
Push-button ignition switch operation ............... 5-11
Steering lock (if so equipped) ................................ 5-11
Push-button ignition switch positions ................ 5-12
Emergency engine shut off .................................... 5-12
Intelligent Key battery discharge .......................... 5-13
Before starting the engine ........................................... 5-13
Starting the engine ......................................................... 5-14
Driving the vehicle .......................................................... 5-15
Automatic transmission ........................................... 5-15
Parking brake ................................................................... 5-19
INFINITI Drive Mode Selector ................................... 5-20
Standard mode ......................................................... 5-20
Sport mode ................................................................ 5-20 Snow mode .............................................................. 5-20
Eco mode ................................................................... 5-21
Lane Departure Warning (LDW)/Lane Departure
Prevention (LDP) (if so equipped) ............................. 5-22 LDW system operation ......................................... 5-24
Turning the LDW system ON/OFF ................... 5-25
How to enable/disable the LDW system ........ 5-26
LDP system operation ........................................... 5-26
Turning the LDP system ON/OFF .................... 5-27
How to enable/disable the LDP system .......... 5-28
LDW/LDP system limitations ............................. 5-28
System temporarily unavailable ......................... 5-30
System malfunction ................................................ 5-31
System maintenance .............................................. 5-31
Blind Spot Warning (BSW) (if so equipped) ........... 5-32 BSW system operation .......................................... 5-33
Turning the BSW system ON/OFF ................... 5-34
How to enable/disable the BSW system ......... 5-34
BSW system limitations ........................................ 5-35
BSW driving situations .......................................... 5-36
System temporarily unavailable .......................... 5-39
System malfunction ............................................... 5-40
System maintenance ............................................. 5-40
Blind Spot Intervention
®(BSI) (if so equipped) ..... 5-41
BSI system operation ............................................. 5-42

Parking brake break-in .......................................... 5-121
Brake assist .................................................................... 5-122 Brake assist ............................................................... 5-122
Anti-lock Braking System (ABS) ......................... 5-122
Vehicle Dynamic Control (VDC) system ................. 5-123 Active trace control (if so equipped) ................ 5-124
Rise-up and build-up ............................................. 5-124
Brake force distribution ........................................ 5-124
Hill Start Assist system ............................................... 5-125 Cold weather driving ................................................... 5-126
Freeing a frozen door lock ................................. 5-126
Antifreeze ................................................................ 5-126
Battery ..................................................................... 5-126
Draining of coolant water .................................. 5-126
Tire equipment ....................................................... 5-126
Special winter equipment ................................... 5-126
Driving on snow or ice ......................................... 5-126
Engine block heater (if so equipped) ............... 5-127
Active noise cancellation .......................................... 5-128

5-4Starting and driving
WARNING
.Do not leave children or adults who
would normally require the support
of others alone in your vehicle. Pets
should not be left alone either. They
could accidentally injure themselves
or others through inadvertent opera-
tion of the vehicle. Also, on hot,
sunny days, temperatures in a closed
vehicle could quickly become high
enough to cause severe or possibly
fatal injuries to people or animals.
. Closely supervise children when they
are around cars to prevent them from
playing and becoming locked in the
trunk where they could be seriously
injured. Keep the car locked, with the
rear seatback and trunk lid securely
latched when not in use, and prevent
children’s access to car keys.
EXHAUST GAS (carbon monoxide)
WARNING
.Do not breathe exhaust gases; they
contain colorless and odorless carbon
monoxide. Carbon monoxide is dan-
gerous. It can cause unconsciousness
or death.
. If you suspect that exhaust fumes are
entering the vehicle, drive with all
windows fully open, and have the
vehicle inspected immediately.
. Do not run the engine in closed spaces
such as a garage.
. Do not park the vehicle with the
engine running for any extended
length of time.
. Keep the trunk lid closed while driv-
ing, otherwise exhaust gases could be
drawn into the passenger compart-
ment. If you must drive with the
trunk lid open, follow these precau-
tions:
1) Open all the windows.
2) Set the
air recirculation to
off and the fan control to high to
circulate the air. .
If electrical wiring or other cable
connections must pass to a trailer
through the seal on the trunk lid or
the body, follow the manufacturer’s
recommendation to prevent carbon
monoxide entry into the vehicle.
. The exhaust system and body should
be inspected by a qualified mechanic
whenever:
— The vehicle is raised for service.
— You suspect that exhaust fumes are entering into the passenger
compartment.
— You notice a change in the sound of the exhaust system.
— You have had an accident invol- ving damage to the exhaust sys-
tem, underbody, or rear of the
vehicle.
PRECAUTIONS WHEN STARTING
AND DRIVING