ECU INFINITI Q70-HYBRID 2018 Service Manual

3-22Pre-driving checks and adjustments
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 the
INFINITI Direct Response Hybrid
®
System and do not smoke or allow
open flames or sparks near the ve-
hicle when refueling.
. 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 a single click is heard. Failure
to tighten the fuel-filler cap properly
may cause the
malfunction in-
dicator light (MIL) to illuminate. If
the
light illuminates because the
fuel-filler cap is loose or missing,
tighten or install the cap and con-
tinue 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.
. The LOOSE FUEL CAP warning will
appear if the fuel-filler cap is not
properly tightened. It may take a few
driving trips for the message to be
displayed. Failure to tighten the fuel-
filler cap properly after the LOOSE
FUEL CAP warning appears may
cause the
Malfunction Indicator
Light (MIL) to illuminate.

4-8Monitor, climate, audio, phone and voice recognition systems
select “Camera” key, and then select “Dis-
play” key.
NOTE:
Do not adjust any of the display settings of
the RearView Monitor while the vehicle is
moving. Make sure the parking brake is
firmly applied.
PREDICTIVE COURSE LINE SET-
TINGS
To toggle on and off the predictive course
lines:
1. Push the SETTING button while theRearView Monitor screen is not dis-
played.
2. Select the “Camera” key.
3. Select the “Camera” key.
4. Select the “Predictive Course Lines” key to turn the feature on or off. When this
item is turned on, the predictive course
lines will be displayed on the monitor.
REARVIEW MONITOR SYSTEM
LIMITATIONS
WARNING
Listed below are the system limitations
for RearView Monitor. Failure to oper-
ate the vehicle in accordance with these
system limitations could result in serious
injury or death.
.The system cannot completely elim-
inate blind spots and may not show
every object.
. Underneath the bumper and the
corner areas of the bumper cannot
be viewed on the RearView Monitor
because of its monitoring range lim-
itation. The system will not show
small objects below the bumper, and
may not show objects close to the
bumper or on the ground.
. Objects viewed in the RearView
Monitor differ from actual distance
because a wide-angle lens is used.
. Objects in the RearView Monitor will
appear visually opposite compared to
when viewed in the rear view and
outside mirrors. .
Use the displayed lines as a reference.
The lines are highly affected by the
number of occupants, fuel level, ve-
hicle position, road conditions and
road grade.
. Make sure that the trunk lid is
securely closed when backing up.
. Do not put anything on the rearview
camera. The rearview camera is in-
stalled above the license plate.
. When washing the vehicle with high-
pressure water, be sure not to spray
it around the camera. Otherwise,
water may enter the camera unit
causing water condensation on the
lens, a malfunction, fire or an electric
shock.
. Do not strike the camera. It is a
precision instrument. Otherwise, it
may malfunction or cause damage
resulting in a fire or an electric shock.
The following are operating limitations and
do not represent a system malfunction:
. When the temperature is extremely high
or low, the screen may not clearly display
objects.
. When strong light is directly coming on
the camera, objects may not be displayed
clearly.

AROUND VIEW®MONITOR SYS-
TEM LIMITATIONS
WARNING
Listed below are the system limitations
for Around View®Monitor. Failure to
operate the vehicle in accordance with
these system limitations could result in
serious injury or death.
. Do not use the Around View
®Moni-
tor with the outside mirrors in the
stored position, and make sure that
the trunk lid is securely closed when
operating the vehicle using the
Around View
®Monitor.
. The apparent distance between ob-
jects viewed on the Around View
®
Monitor differs from the actual dis-
tance.
. The cameras are installed on the
front grille, the outside mirrors and
above the rear license plate. Do not
put anything on the vehicle that
covers the cameras.
. When washing the vehicle with high
pressure water, be sure not to spray
it around the cameras. Otherwise,
water may enter the camera unit causing water condensation on the
lens, a malfunction, fire or an electric
shock.
. Do not strike the cameras. They are
precision instruments. Doing so could
cause a malfunction or cause damage
resulting in a fire or an electric shock.
The following are operating limitations and
do not represent a system malfunction:
. The screen displayed on the Around
View
®Monitor will automatically return
to the previous screen 3 minutes after
the CAMERA button has been pushed
while the shift lever is in a position other
than the R (Reverse) position.
. There may be a delay when switching
between views.
. When the temperature is extremely high
or low, the screen may not display
objects clearly.
. When strong light directly shines on the
camera, objects may not be displayed
clearly.
. The screen may flicker under fluorescent
light.
. The colors of objects on the Around
View
®Monitor may differ somewhat
from the actual color of objects. .
Objects on the monitor may not be clear
and the color of the object may differ in a
dark environment.
. There may be differences in sharpness
between each camera view of the bird’s-
eye view.
. When activating the Around View
®
Monitor, the icons and the messages
may not be displayed for a while.
. If dirt, rain or snow accumulates on the
camera, the Around View
®Monitor may
not display objects clearly. Clean the
camera.
. Do not use wax on the camera lens. Wipe
off any wax with a clean cloth that has
been dampened with a diluted mild
cleaning agent, then wipe with a dry
cloth.
Monitor, climate, audio, phone and voice recognition systems4-21

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.
. Do not attempt to test the vehicle on
a dynamometer (such as the dynam-
ometers used by some states for
emissions testing), or similar equip-
ment. Doing so may cause damage to
the drivetrain or the high voltage
battery. Make sure you inform test
facility personnel that your vehicle is
hybrid. Using the wrong test equip- ment may result in drivetrain damage
or unexpected vehicle movement
which could result in serious vehicle
damage or pearsonal injury.
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
ignition switch in the ON position
and the INFINITI Direct Response
Hybrid
®System in the READY to
drive mode for any extended length
of time.
. 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

wheel with both hands and try to hold a
straight course.
3. When appropriate, slowly release the accelerator pedal to gradually slow the
vehicle.
4. Gradually steer the vehicle to a safe location off the road and away from
traffic if possible.
5. Lightly apply the brake pedal to gradu- ally stop the vehicle.
6. Turn on the hazard warning flashers and either contact a roadside emergency
service to change the tire or see “Chan-
ging a flat tire” (P.6-4).
DRINKING ALCOHOL/DRUGS
AND DRIVING
WARNING
Never drive under the influence of alco-
hol or drugs. Alcohol in the bloodstream
reduces coordination, delays reaction
time and impairs judgement. Driving
after drinking alcohol increases the like-
lihood of being involved in an accident
injuring yourself and others. Addition-
ally, if you are injured in an accident,
alcohol can increase the severity of the
injury. INFINITI is committed to safe driving. How-
ever, you must choose not to drive under the
influence of alcohol. Every year thousands of
people are injured or killed in alcohol-related
accidents. Although the local laws vary on
what is considered to be legally intoxicated,
the fact is that alcohol affects all people
differently and most people underestimate
the effects of alcohol.
Remember, drinking and driving don’t mix!
And that is true for drugs, too (over-the-
counter, prescription, and illegal drugs).
Don’t drive if your ability to operate your
vehicle is impaired by alcohol, drugs, or some
other physical condition.
WARNING
Do not operate the push-button ignition
switch while driving the vehicle except in
an emergency. (The INFINITI Direct
Response Hybrid
®System will turn off
when the ignition switch is pushed 3
consecutive times or the ignition switch
is pushed and held for more than 2
seconds.) If the hybrid system turns off
while the vehicle is being driven, this
could lead to a crash and serious injury.
Before operating the push-button ignition
switch, be sure to move the shift lever to the
P (Park) position.
Starting and driving5-9
PUSH-BUTTON IGNITION SWITCH

5-12Starting and driving
CAUTION
Do not leave the vehicle with the push-
button ignition switch in ACC or ON
positions when the hybrid system is not
running for an extended period. This can
discharge the 12-volt battery.
EMERGENCY ENGINE SHUT OFF
To shut off the engine in an emergency
situation while driving, perform the follow-
ing procedure:
.Rapidly push the push-button ignition
switch 3 consecutive times in less than
1.5 seconds, or
. Push and hold the push-button ignition
switch for more than 2 seconds.
SSD0860
INTELLIGENT KEY BATTERY DIS-
CHARGE
If the battery of the Intelligent Key is
discharged, or environmental conditions in-
terfere with the Intelligent Key operation,
start the hybrid system according to the
following procedure:
1. Move the shift lever to the P (Park) position.
2. Firmly apply the foot brake.
3. Touch the ignition switch with the Intelligent Key as illustrated. (A chime
will sound.)
4. Push the ignition switch while depressing the brake pedal within 10 seconds after
the chime sounds. The hybrid system will
start.
After step 3 is performed, when the ignition
switch is pushed without depressing the
brake pedal, the ignition switch position will
change to ACC.
NOTE:
. When the ignition switch is pushed to
the ACC or ON position or the hybrid
system is started by the above proce-
dures, the Intelligent Key battery dis-
charge indicator appears on the vehicle
information display even if the Intelli-
gent Key is inside the vehicle. This is not
a malfunction. To turn off the Intelligent
Key battery discharge indicator, touch
the ignition switch with the Intelligent
Key again.
. If the Intelligent Key battery discharge
indicator appears, replace the battery as
soon as possible. (See “Intelligent Key
battery replacement” (P.8-21).)

To shut off the INFINITI Direct Response
Hybrid®System in an emergency situation
while driving, perform the following proce-
dure:
. Rapidly push the push-button ignition
switch 3 consecutive times in less than
1.5 seconds, or
. Push and hold the push-button ignition
switch for more than 2 seconds.TIRE PRESSURE MONITORING
SYSTEM (TPMS)
This vehicle is equipped with the Tire
Pressure Monitoring System (TPMS). It
monitors tire pressure of all tires except the
spare. When the low tire pressure warning
light is lit and the CHECK TIRE PRESSURE
warning appears in the vehicle information
display, one or more of your tires is sig-
nificantly under-inflated. If the vehicle is
being driven with low tire pressure, the
TPMS will activate and warn you of it by
the low tire pressure warning light. This
system will activate only when the vehicle is
driven at speeds above 16 MPH (25 km/h).
For more details, see “Warning lights, in-
dicator lights and audible reminders” (P.2-
10) and “Tire Pressure Monitoring System
(TPMS) ” (P.5-5).
WARNING
. If the low tire pressure warning light
illuminates or LOW PRESSURE in-
formation is displayed on the monitor
screen while driving, avoid sudden
steering maneuvers or abrupt brak-
ing, reduce vehicle speed, pull off the
road to a safe location and stop the
vehicle as soon as possible. Driving
with under-inflated tires may perma- nently damage the tires and increase
the likelihood of tire failure. Serious
vehicle damage could occur and may
lead to an accident and could result in
serious personal injury. Check the tire
pressure for all four tires. Adjust the
tire pressure to the recommended
COLD tire pressure shown on the
Tire and Loading Information label to
turn the low tire pressure warning
light OFF. If the light still illuminates
while driving after adjusting the tire
pressure, a tire may be flat. If you
have a flat tire, replace it with a spare
tire as soon as possible.
. Since the spare tire is not equipped
with the TPMS, when a spare tire is
mounted or a wheel is replaced, the
TPMS will not function and the low
tire pressure warning light will flash
for approximately 1 minute. The light
will remain on after 1 minute. Have
your tires replaced and/or TPMS
system reset as soon as possible. It
is recommended you visit an INFINITI
retailer for these services.
. Replacing tires with those not origin-
ally specified by INFINITI could affect
the proper operation of the TPMS.
. Do not inject any tire liquid or aerosol
tire sealant into the tires, as this may
In case of emergency6-3
EMERGENCY INFINITI DIRECT
RESPONSE HYBRID®SYSTEM SHUT OFFFLAT TIRE

6-4In case of emergency
cause a malfunction of the tire pres-
sure sensors.
CHANGING A FLAT TIRE
If you have a flat tire, follow the instructions
below.
Stopping the vehicle
1. Safely move the vehicle off the road andaway from traffic.
2. Turn on the hazard warning flashers.
3. Park on a level surface and apply the parking brake. Move the shift lever to the
P (Park) position.
4. Turn off the INFINITI Direct Response Hybrid
®System.
5. Raise the hood to warn other traffic, and to signal professional road assistance
personnel that you need assistance.
6. Have all passengers get out of the vehicle and stand in a safe place, away
from traffic and clear of the vehicle.
WARNING
.Make sure the parking brake is
securely applied and the automatic
transmission into P (Park). .
Never change tires when the vehicle
is on a slope, ice or slippery areas.
This is hazardous.
. Never change tires if oncoming traf-
fic is close to your vehicle. Wait for
professional road assistance.
MCE0001A
Blocking wheels
Place suitable blocksat both the front and
back of the wheel diagonally opposite the
flat tire to prevent the vehicle from moving
when it is jacked up.
WARNING
Be sure to block the wheel as the vehicle
may move and result in personal injury.

SCE0504
2. Loosen each wheel nut one or two turnsby turning counterclockwise with the
wheel nut wrench. Do not remove the
wheel nuts until the tire is off the
ground.
3. Carefully raise the vehicle until the tire clears the ground. To lift the vehicle,
securely hold the jack lever and rod with
both hands as shown above. Remove the
wheel nuts, and then remove the tire.
SCE0661
Installing the spare tire
The T-type spare tire is designed for
emergency use. (See specific instructions
under the heading “Wheels and tires” (P.8-
26).)
1. Clean any mud or dirt from the surfacebetween the wheel and hub.
2. Carefully put the spare tire on and tighten the wheel nuts finger tight.
3. With the wheel nut wrench, tighten wheel nuts alternately and evenly in the
sequence illustrated (
,,,,) until
they are tight.
4. Lower the vehicle slowly until the tire touches the ground. Then, with the
In case of emergency6-7

6-8In case of emergency
wheel nut wrench, tighten the wheel
nuts securely in the sequence illustrated.
Lower the vehicle completely.
WARNING
.Incorrect wheel nuts or improperly
tightened wheel nuts can cause the
wheel to become loose or come off.
This could cause an accident.
. Do not use oil or grease on the wheel
studs or nuts. This could cause the
nuts to become loose.
. Retighten the wheel nuts when the
vehicle has been driven for 600 miles
(1,000 km) (also in cases of a flat tire,
etc.).
.As soon as possible, tighten the wheel
nuts to the specified torque with a
torque wrench.
Wheel nut tightening torque: 80 ft-lb (108 N·m)
The wheel nuts must be kept tigh-
tened to specification at all times. It
is recommended that wheel nuts be
tightened to specifications at each
lubrication interval.
.Adjust tire pressure to the COLD pressure.
COLD pressure:
After the vehicle has been parked for
three hours or more or driven less
than 1 mile (1.6 km).
COLD tire pressures are shown on
the Tire and Loading Information
label affixed to the driver side center
pillar.
SCE0883
5. Securely store the flat tire and jacking
equipment in the vehicle.