2018 INFINITI QX30 battery replacement

Since the Intelligent Key is continuously re-
ceiving radio waves, if the key is left near
equipment which transmits strong radio
waves, such as signals from a TV and per-
sonal computer, the battery life may become
shorter.
For additional information, refer to "Intelli-
gent Key battery replacement" in the "8. Do-
it-yourself" section.
As many as four Intelligent Keys can be reg-
istered and used with one vehicle. For infor-
mation about the purchase and use of addi-
tional Intelligent Keys, it is recommended that
you visit an INFINITI retailer.
CAUTION
Listed below are conditions or occurrences
which will damage the Intelligent Key:
•Do not allow the Intelligent Key, which
contains electrical components, to come
into contact with water or salt water.
This could affect the system function.
•Do not drop the Intelligent Key.
•Do not strike the Intelligent Key sharply
against another object.
•Do not change or modify the Intelligent
Key.
•Wetting may damage the Intelligent
Key. If the Intelligent Key gets wet, im-
mediately wipe until it is completely dry.
•Do not place the Intelligent Key for an
extended period in an area where tem-
peratures exceed 140 °F (60 °C).
•Do not attach the Intelligent Key with a
key holder that contains a magnet.
•Do not place the Intelligent Key near
equipment that produces a magnetic
field, such as a TV, audio equipment and
personal computers.
If an Intelligent Key is lost or stolen, INFINITI
recommends erasing the ID code of that In-
telligent Key from the vehicle. This may pre-
vent the unauthorized use of the Intelligent
Key to operate the vehicle. For information
regarding the erasing procedure, it is recom-
mended that you visit an INFINITI retailer.
OPERATING RANGE
The Intelligent Key functions can only be used
when the Intelligent Key is within the speci-
fied operating range from the request switch
1.
NPA1498
Pre-driving checks and adjustments3-9

The hazard warning flasher switch1oper-
ates regardless of the ignition switch position
except when the battery is discharged.
The hazard warning flasher is used to warn
other drivers when you have to stop or park
under emergency conditions.
When the hazard warning flasher switch is
pushed, all turn signal lights will flash. To turn
off the hazard warning flasher, push the haz-
ard warning switch again.
WARNING
•If stopping for an emergency, be sure to
move the vehicle well off the road.
•Do not use the hazard warning flashers
while moving on the highway unless un-
usual circumstances force you to drive so slowly that your vehicle might be-
come a hazard to other traffic.
•Turn signals do not work when the haz-
ard warning flasher lights are on.
Some jurisdictions may prohibit the use of
the hazard warning flasher switch while
driving. If you have a flat tire, follow the instructions
in this section.TIRE PRESSURE MONITORING
SYSTEM (TPMS)
WARNING
•If the low tire pressure warning light il-
luminates or a tire pressure-related
warning is displayed by the vehicle in-
formation display while driving, avoid
sudden steering maneuvers or abrupt
braking, 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 permanently
damage the tires and increase the likeli-
hood of tire failure. Serious vehicle dam-
age could occur and may lead to an acci-
dent 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 informa-
tion label to turn the low tire pressure
warning light OFF. If you have a flat tire,
replace it with a replacement tire as
soon as possible.
•When a replacement tire is mounted or a
wheel is replaced, the TPMS will not
NIC2621
HAZARD WARNING FLASHER
SWITCH FLAT TIRE
6-2In case of emergency

CAUTION
•Always connect positive+to positive
+and negative-to body ground (for
example, strut mounting bolt, engine lift
bracket, etc.) – not to the battery's
negative
-.
•Be sure that the jumper cables do not
touch moving parts in the engine com-
partment and that the cable clamps do
not contact any other metal.
9. Start the engine of the other vehicle
Aand let it run for a few minutes. Keep the
engine speed at about 2,000 rpm.
10. Start the engine of your vehicle
Bin the
normal way.
CAUTION
Do not keep the starter motor engaged for
more than 10 seconds. If the engine does
not start right away, place the ignition
switch in the OFF position and wait 10 sec-
onds before trying again.
11. After starting the engine of your vehicle, carefully disconnect the negative lead
and then the positive lead (
4→3→2→1). 12. Remove and dispose of the cloth that
was used to cover the ventilator holes as
it may be contaminated with corrosive
acid.
13. Install the ventilator caps (if equipped).
14. Close the hood.
NOTE
For models which incorporate the Idle Stop/
Start System:
•Ensure that the battery fitted is the special
battery that is enhanced with regard to the
charge-discharge capacity and life perfor-
mance. Avoid using any other battery for
the Idle Stop/Start System, as this may
cause early deterioration of the battery or
a malfunction of the Idle Stop/Start Sys-
tem. It is recommended that a Genuine
INFINITI battery is fitted. For more infor-
mation, it is recommended you contact an
INFINITI retailer.
•If the battery terminal is disconnected (for
battery replacement, etc.) and then recon-
nected, there may be some delay before
the Idle top/Start System reactivates. Do not attempt to start the engine by pushing
the vehicle.
CAUTION
•Automatic Transmission (AT) model
cannot be push-started or tow-started.
Attempting to do so may cause damage
to the transmission.
•Three-way catalyst equipped models
should not be started by pushing. At-
tempting to do so may cause damage to
the three-way catalyst.
•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 vehicle.
PUSH STARTING
6-12In case of emergency

8 Do-it-yourself
Maintenance precautions.................8-2
Engine compartment check locations .........8-3
2.0L Gasoline engine ................ .8-3
Engine cooling system .................. .8-3
Checking engine coolant level ............8-4
Changing engine coolant ...............8-4
Engine oil .......................... .8-5
Checking engine oil level ...............8-5
Changing engine oil ................. .8-5
Changing engine oil filter ...............8-6
Automatic Transmission Fluid (ATF) ..........8-7
Brake fluid ......................... .8-7
Window washer fluid .................. .8-8
Battery ........................... .8-9
Accessing Vehicle battery ..............8-10
Maintenance free battery ..............8-10
Models with Idle Stop/Start System .......8-11
Battery replacement ................ .8-11
Reinitialisation procedure after battery
reconnection ..................... .8-12
Jump-starting .................... .8-12
Drive belt ......................... .8-12
Spark plugs ........................ .8-13
Air cleaner filter ..................... .8-13
Wiper blades ....................... .8-13Cleaning
........................ .8-13
Replacing front window wiper blades ......8-14
Replacing rear window wiper blade .......8-16
Brakes ........................... .8-17
Self-adjusting brakes ................ .8-17
Fuses ............................ .8-17
Before replacing a fuse ...............8-17
Engine compartment ................ .8-17
Passenger compartment ..............8-18
Intelligent Key battery replacement ........
.8-20
Checking

the battery ................ .8-20
Replacing the battery ............... .8-20
Lights ........................... .8-22
Exterior and interior lights ..............8-22
Replacement procedures ..............8-24
Wheels and tires ..................... .8-27
Tire Pressure ..................... .8-27
Tire inflation pressure ............... .8-29
Tire labeling ..................... .8-29
Types of tires ..................... .8-31
Tire chains ...................... .8-32
Tire wear and damage ............... .8-33
Tire rotation ..................... .8-34
Replacing wheels and tires .............8-34
Wheel balance .................... .8-35

MODELS WITH IDLE
STOP/START SYSTEM
•Ensure that the battery fitted is the special
battery that is enhanced with regard to the
charge-discharge capacity and life perfor-
mance. Avoid using any other battery for
the Idle Stop/Start System, as this may
cause early deterioration of the battery or
a malfunction of the Idle Stop/Start Sys-
tem. It is recommended that a Genuine
INFINITI battery is fitted. For more infor-
mation, it is recommended that you con-
tact an INFINITI retailer.
•If the battery terminal is disconnected (for
battery replacement, etc.) and then recon-
nected, there may be some delay before
the Stop/Start System reactivates.
BATTERY REPLACEMENT
It is recommended that a Genuine INFINITI
battery is fitted. It is recommended that you
visit an INFINITI retailer for this service.
Protective plate for battery
WARNING
Whenever the battery is replaced, always
have the protective plate underneath the
battery also reinstalled or replaced. If this
plate is not reinstalled/replaced, in the
event of a collision a thermal incident could
occur, causing vehicle damage and poten-
tially causing serious injury of death.
If the vehicle battery is replaced, the protec-
tive plate underneath the battery must also
be replaced. This protective plate must be
fixed to the underside of the replacement
battery using the adhesive tape supplied with
the replacement plate. It is recommended
that you visit an INFINITI retailer to purchase
and replace the protective plate underneath
the battery. 1. Make sure the underside of the replace-
ment battery is dry and free of dust.
2. Remove the backing strips
1from the
adhesive strips.
3. Fix the protective plate to the underside of the battery without any overlap
2.
NDI1634
Do-it-yourself8-11

4. Fit the replacement battery in the vehicle.
REINITIALISATION PROCEDURE
AFTER BATTERY
RECONNECTION
If the battery has been reconnected, check
the following items:
•Clock setting (if so equipped). For details,
see "Clock" in the "2. Instruments and con-
trols" section, or the separately provided
navigation system Owner's Manual, or the
audio device descriptions in " Audio system
(if equipped)" in the "4. Display screen,
heater and air conditioner, and audio sys-
tem" section.
•Reset the desired radio stations to the pre-
set station buttons. For details, see the
audio device descriptions in the “4. Heater
and air conditioner, and audio system”.
JUMP-STARTING
If jump-starting is necessary, see "Jump
starting" in the "6. In case of emergency" sec-
tion. If the engine does not start by jump
starting, the battery may have to be replaced.
It is recommended that you visit an INFINITI
retailer for this service.
WARNING
Be sure the ignition switch is in the OFF
position before servicing drive belt. The en-
gine could rotate unexpectedly.
1. Visually inspect each belt for signs of un- usual wear, cuts, fraying or looseness. If
the belt is in poor condition or loose, have
it replaced or adjusted. It is recommended
that you visit an INFINITI retailer for this
service.
2. Have the belts checked regularly for con- dition and tension in accordance with the
maintenance schedule as shown in a
separately provided Warranty Informa-
tion and Maintenance booklet.
NDI1635
DRIVE BELT
8-12Do-it-yourself

CAUTION
Be careful not to allow children to swallow
the battery or removed parts.
CHECKING THE BATTERY
Press the(LOCK) or(UNLOCK)
button.
The battery is working properly if the battery
check light
1lights up briefly.
The battery is discharged if the battery check
light
1does not light up briefly. Replace the
battery.
NOTE
•If the key battery is checked within the
signal reception range of the vehicle,
pressing the
(LOCK) or(UN-
LOCK) button locks or unlocks the vehicle.
•You can obtain a battery from an INFINITI
retailer.
REPLACING THE BATTERY
You require a CR 2025 3 V cell battery.
Replace the battery in the Intelligent Key as
follows:
1. Take the emergency key element out of the key (see "Mechanical key" in the "3.
Pre-driving checks and adjustments" sec-
tion)
2. Press emergency key element
2into the
opening into the key in the direction of the
arrow until the battery cover
1opens.
When doing so, do not hold cover
1shut.
3. Remove battery tray cover
1.
NPA1474NPA1472
INTELLIGENT KEY BATTERY
REPLACEMENT
8-20Do-it-yourself

4. Repeatedly tap the key against your palmuntil battery
1falls out. 5. Insert the new battery with the positive
terminal facing upwards. Use a lint-free
cloth to do so.
6. Make sure that the surface of the battery is free of lint, grease and other contami-
nation.
7. Insert the front tabs of battery cover
1and then press to close it.
8. Insert emergency key element into the key (see "Mechanical key" in the "3. Pre-
driving checks and adjustments" section).
9. Check the function of all key buttons on the vehicle.
If you need assistance with replacement, it is
recommended that you visit an INFINITI re-
tailer for this service. FCC Notice:
For USA:
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions: (1) This device may not
cause harmful interference, and (2) this de-
vice must accept any interference received,
including interference that may cause unde-
sired operation.
NOTE
Changes or modifications not expressly ap-
proved by the party responsible for compli-
ance could void the user’s authority to oper-
ate the equipment.
For Canada:
This device complies with Industry Canada
license-exempt RSS standard(s). Operation
is subject to the following two conditions: (1)
this device may not cause interference, and
(2) this device must accept any interference,
including interference that may cause unde-
sired operation of the device.
NPA1473SPA0784Z
Do-it-yourself8-21