battery INFINITI Q50-HYBRID 2018 Workshop Manual

6 In case of emergency
Hazard warning flasher switch ..................................... 6-2
Roadside assistance program ........................................ 6-2
Emergency INFINITI Direct Response Hybrid
®
System shut off ................................................................. 6-3
Flat tire ........................................................................\
......... 6-3Tire Pressure Monitoring System (TPMS) ............ 6-3
Run-flat tires ................................................................. 6-4 If the vehicle does not start .......................................... 6-5
Confirm battery is discharged ................................ 6-5
Jump starting ..................................................................... 6-5
Push starting ....................................................................... 6-7
If your vehicle overheats ................................................ 6-8
Towing your vehicle ......................................................... 6-9
Towing recommended by INFINITI .................... 6-10
Vehicle recovery (freeing a stuck vehicle) ......... 6-11

Before attempting to jump start the vehicle,
make sure the fuel tank is not empty and the
correct starting procedure is followed. See
“Starting the INFINITI Direct Response
Hybrid
®System” (P.5-14). Do not drive the
vehicle on battery power only if the fuel tank
is empty. The Lithium ion (Li-ion) battery will
become discharged and the INFINITI Direct
Response Hybrid
®System will turn off.
CONFIRM BATTERY IS DIS-
CHARGED
If any of the following conditions occurs, the
12-volt battery might discharged:
. The instrument cluster and/or headlights
are not normal brightness.
. Audio accessories cannot be turned on.
. The hybrid system does not become
READY to drive mode.
. The ignition switch cannot be placed in
the ON position.
Check the following if you notice above
conditions.
1. Check that the 12-volt battery terminals are tight and clean. See “12-volt battery”
(P.8-14). The 12-volt battery is located
on the left hand side of the trunk behind
an access panel. If the 12-volt battery
terminals are loose, it is recommended
you contact an INFINITI retailer. 2. If the 12-volt battery terminals are tight
and clean, try to jump start the vehicle.
See “Jump starting” (P.6-5).
If the hybrid system still does not start, it is
recommended that you contact an INFINITI
retailer. To start your INFINITI Direct Response
Hybrid
®System with a booster battery, the
instructions and precautions below must be
followed.
Jump starting provides power to the 12 volt
system to allow the electrical systems to
operate. The electrical systems must be
operating to allow the Lithium ion (Li-ion)
battery to be charged. Jump starting does
not charge the Li-ion battery.
WARNING
. If done incorrectly, jump starting can
lead to a 12-volt battery explosion,
resulting in severe injury or death. It
could also damage your vehicle.
. Explosive hydrogen gas is always
present in the vicinity of the 12-volt
battery. Make sure that the vent
tube is mounted.
. Do not allow battery fluid to come
into contact with eyes, skin, clothing
or painted surfaces. Battery fluid is a
corrosive sulfuric acid solution which
can cause severe burns. If the fluid
should come into contact with any-
thing, immediately flush the con-
tacted area with water.
. Keep the 12-volt battery out of the
reach of children.
In case of emergency6-5
IF THE VEHICLE DOES NOT STARTJUMP STARTING

6-6In case of emergency
.The booster battery must be rated at
12 volts. Use of an improperly rated
battery can damage your vehicle.
. Whenever working on or near a 12-
volt battery, always wear suitable
eye protectors (for example, goggles
or industrial safety spectacles) and
remove rings, metal bands, or any
other jewelry. Do not lean over the
12-volt battery when jump starting.
. Do not attempt to jump start a
frozen battery. It could explode and
cause serious injury.
. Your vehicle has an automatic engine
cooling fan. It could come on at any
time. Keep hands and other objects
away from it.
CAUTION
Do not attempt to jump start a hybrid
vehicle as a booster vehicle.JVE0174X
WARNING
Always follow the instructions below.
Failure to do so could result in damage to
the charging system and cause personal
injury. 1. If the booster battery is in another
vehicle
, position the two vehicles (and) to bring the battery and the fuse
box into close proximity to each other.
Do not allow the two vehicles to touch.
2. Apply parking brake. Move the shift lever to the P (Park) position. Switch off all

unnecessary electrical systems (light,
heater, air conditioner, etc.).
3. Connect jumper cables in the sequence as illustrated (
???).
CAUTION
.Always connect positive (+) to posi-
tive (+) and negative (−) to body
ground (as illustrated) − not to the
12-volt battery.
. Make sure the jumper cables do not
touch moving parts in the engine
compartment and that clamps do
not contact any other metal.
4. Start the engine of the booster vehicle
and let it run for a few minutes.
5. Start the hybrid system of the vehicle being jump started
.
CAUTION
If the hybrid system does not start right
away, push the ignition switch to the
OFF position and wait 10 seconds
before trying again. 6. After starting your hybrid system, care-
fully disconnect the negative cable and
then the positive cable (
???).
NOTE:
If it is not possible to turn the hybrid system
ON by following this procedure, it is
recommended that you contact an INFINITI
retailer immediately. Do not attempt to start the engine by
pushing.CAUTION
.
Automatic Transmission (AT) models
cannot be push-started or tow-
started. Attempting to do so may
cause transmission damage.
. Three-way catalyst equipped models
should not be started by pushing
since the three-way catalyst may be
damaged.
. Never try to start the vehicle by
towing it; when the engine starts,
the forward surge could cause the
vehicle to collide with the tow vehi-
cle.
. Hybrid models cannot be push-
started or tow-started. Attempting
to do so may cause electrical or
transmission damage.
In case of emergency6-7
PUSH STARTING

7 Appearance and care
Cleaning exterior ................................................................ 7-2Washing ........................................................................\
... 7-2
Waxing ........................................................................\
..... 7-2
Removing spots ............................................................. 7-3
Underbody ...................................................................... 7-3
Glass ........................................................................\
......... 7-3
Wheels ........................................................................\
..... 7-3
Chrome parts ................................................................ 7-4
Tire dressing .................................................................. 7-4 Cleaning interior ................................................................. 7-5
Lithium-ion (Li-ion) battery and DC/DC
converter air vent ....................................................... 7-5
Air fresheners ............................................................... 7-6
Floor mats ..................................................................... 7-6
Seat belts ...................................................................... 7-7
Corrosion protection ........................................................ 7-8 Most common factors contributing to
vehicle corrosion ........................................................ 7-8
Environmental factors influence the rate
of corrosion ................................................................. 7-8
To protect your vehicle from corrosion ............... 7-8

Occasionally remove loose dust from the
interior trim, plastic parts and seats using a
vacuum cleaner or soft bristled brush. Wipe
the vinyl and leather surfaces with a clean,
soft cloth dampened in mild soap solution,
then wipe clean with a dry soft cloth.
Regular care and cleaning is required in order
to maintain the appearance of the leather.
Before using any fabric protector, read the
manufacturer’s recommendations. Some
fabric protectors contain chemicals that
may stain or bleach the seat material.
Use a cloth dampened only with water, to
clean the meter and gauge lens.
WARNING
Do not use water or acidic cleaners (hot
steam cleaners) on the seat. This can
damage the seat or occupant classifica-
tion sensors. This can also affect the
operation of the air bag system and
result in serious personal injury.
CAUTION
.Never use benzine, thinner, or any
similar material. .
For cleaning, use a soft cloth, dam-
pened with water. Never use a rough
cloth, alcohol, benzine, thinner or any
kind of solvent or paper towel with a
chemical cleaning agent. They will
scratch or cause discoloration to the
lens.
. Do not spray any liquid such as water
on the meter lens. Spraying liquid
may cause the system to malfunction.
. Small dirt particles can be abrasive
and damaging to the leather surfaces
and should be removed promptly. Do
not use saddle soap, car waxes,
polishes, oils, cleaning fluids, sol-
vents, detergents or ammonia-based
cleaners as they may damage the
leather’s natural finish.
. Do not clean the interior or trunk
using water. If water contacts the
Lithium-ion (Li-ion) battery, it may
cause a short circuit and damage the
battery.
. Only use fabric protectors approved
by INFINITI.
. Do not use glass or plastic cleaner on
meter or gauge lens covers. It may
damage the lens cover.
JVO0114X
LITHIUM-ION (Li-ion) BATTERY
AND DC/DC CONVERTER AIR
VENT
CAUTION
.Do not place objects over or into the
air vent. The Li-ion battery or DC/
DC converter may overheat and be
damaged.
. Do not allow any liquid to get on or in
the air vent. It may cause a short
circuit and damage the Li-ion battery
or DC/DC converter.
Appearance and care7-5
CLEANING INTERIOR

7-6Appearance and care
.Clean the air vent regularly to pre-
vent the Li-ion battery or DC/DC
converter from overheating.
Regularly clean the air vent
with a dry
cloth to prevent the vent from being blocked.
AIR FRESHENERS
Most air fresheners use a solvent that could
affect the vehicle interior. If you use an air
freshener, take the following precautions:
. Hanging-type air fresheners can cause
permanent discoloration when they con-
tact vehicle interior surfaces. Place the
air freshener in a location that allows it
to hang free and not contact an interior
surface.
. Liquid-type air fresheners typically clip
on the vents. These products can cause
immediate damage and discoloration
when spilled on interior surfaces.
Carefully read and follow the manufac-
turer’s instructions before using air fresh-
eners.
FLOOR MATS
WARNING
To avoid potential pedal interference
that may result in a collision, injury or
death:
. NEVER place a floor mat on top of
another floor mat in the driver front
position or install them upside down
or backwards.
. Use only genuine INFINITI floor mats
or equivalent floor mats that are
specifically designed for use in your
vehicle model and model year.
. Properly position the mats in the
floorwell using the floor mat posi-
tioning hook. See “Floor mat installa-
tion” (P.7-7).
. Make sure the floor mat does not
interfere with pedal operation.
. Periodically check the floor mats to
make sure they are properly installed.
. After cleaning the vehicle interior,
check the floor mats to make sure
they are properly installed.
The use of genuine INFINITI floor mats can
extend the life of your vehicle carpet and make it easier to clean the interior. Mats
should be maintained with regular cleaning
and replaced if they become excessively
worn.

8 Do-it-yourself
Maintenance precautions ................................................ 8-2
Engine compartment check locations ......................... 8-3VQ35HR engine ........................................................... 8-3
Engine cooling system ..................................................... 8-5 Checking engine coolant level .................................. 8-6
Changing engine coolant ........................................... 8-7
Inverter cooling system ................................................... 8-7 Checking inverter coolant level ................................ 8-8
Changing inverter coolant ......................................... 8-9
Engine oil ........................................................................\
..... 8-9
Checking engine oil level ............................................ 8-9
Changing engine oil and oil filter .......................... 8-10
Automatic Transmission Fluid (ATF) ......................... 8-12
Brake fluid ........................................................................\
. 8-12
Window washer fluid ..................................................... 8-13
12-volt battery ................................................................. 8-14
Checking battery fluid level .................................... 8-15
Jump starting .............................................................. 8-15
Spark plugs ........................................................................\
8-15 Replacing spark plugs ............................................... 8-16
Air cleaner ........................................................................\
.. 8-16 Windshield wiper blades ............................................... 8-17
Cleaning ...................................................................... 8-17
Replacing .................................................................... 8-18
Brakes ........................................................................\
........ 8-18 Self-adjusting brakes .............................................. 8-18
Brake pad wear warning ....................................... 8-18
Fuses ........................................................................\
.......... 8-19 Engine compartment and trunk ........................... 8-19
Passenger compartment ....................................... 8-20
Intelligent Key battery replacement .......................... 8-21
Lights ........................................................................\
........ 8-24 Headlights .................................................................. 8-25
Exterior and interior lights .................................... 8-25
Wheels and tires ............................................................ 8-28 Tire pressure ............................................................. 8-28
Tire labeling ............................................................... 8-32
Types of tires ........................................................... 8-34
Tire chains .................................................................. 8-35
Changing wheels and tires .................................... 8-36
Jacking up the vehicle and replacing tires ........ 8-39

8-2Do-it-yourself
When performing any inspection or main-
tenance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
.This vehicle has high voltage DC and
AC systems as well as a 12-volt
system. DC and AC high voltage is
very dangerous and can cause severe
burns and electric shock that may
result in serious injury or death.
. Never touch, disassemble, remove or
replace the high voltage parts, har-
nesses and their connectors. High
voltage cables are orange. Touching,
disassembling, removing or replacing
those parts and harnesses can cause
severe burns or electric shock that
may result in serious injury or death.
. Never try to remove the service plug
located in the trunk room. The service
plug is used only when the vehicle is
serviced by trained technicians wear-
ing personal protection equipment
and is part of the high voltage
system. Touching the service plug
can cause severe burns or electric shock that may result in serious injury
or death.
. The INFINITI Direct Response Hy-
brid
®System uses high voltage up to
408 volts. The system can be hot
while and after starting. Be careful of
both the high voltage and the high
temperature. Obey the caution labels
attached to the vehicle.
. Park the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the
vehicle from moving. Move the shift
lever to P (Park).
. Be sure the ignition switch is in the
OFF or LOCK position when per-
forming any parts replacement or
repairs.
. The engine can start at any time
without warning when the hybrid
system is in the READY to drive
mode. If you must work with the
hybrid system in the READY to drive
mode, keep your hands, clothing, hair
and tools away from fans, belts and
any other parts that can move.
. It is advisable to secure or remove
any loose clothing and remove any
jewelry, such as rings, watches, etc.
before working on your vehicle. .
Always wear eye protection when-
ever you work on your vehicle.
. Your vehicle is equipped with an
automatic engine cooling fan. It may
come on at any time without warn-
ing, even if the ignition key is in the
OFF position and the engine is not
running. To avoid injury, always dis-
connect the negative battery cable of
the 12-volt battery before working
near the fan.
. If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
. Never get under the vehicle while it is
supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
. Keep smoking materials, flame and
sparks away from the fuel tank and
the 12-volt battery.
CAUTION
.Do not work under the hood while the
engine is hot. Turn the hybrid system
off and wait until it cools down.
MAINTENANCE PRECAUTIONS

.Avoid direct contact with used en-
gine oil and coolant. Improperly dis-
posed engine oil, coolant, and/or
other vehicle fluids can damage the
environment. Always conform to lo-
cal regulations for disposal of vehicle
fluid.
. Never leave the engine or the trans-
mission related component harness
connector disconnected while the
ignition switch is in the ON position.
. Never connect or disconnect the 12-
volt battery or any transistorized
component while the ignition switch
is in the ON position.
This “8. Do-it-yourself” section gives in-
structions regarding only those items which
are relatively easy for an owner to perform.
A genuine INFINITI Service Manual is also
available. (See “Owner’s Manual/Service
Manual order information” (P.10-22).)
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and could
affect your warranty coverage. If in doubt
about any servicing, it is recommended you
have it done by an INFINITI retailer.
JVM0249X
VQ35HR ENGINE
To remove the engine compartment cover,
unhook the clips located as illustrated.
Do-it-yourself8-3
ENGINE COMPARTMENT CHECK
LOCATIONS