2012 INFINITI M-HEV battery replacement

858763.psp Nissan Infiniti OM OM2E HY51U0 Hybrid 1" gutter 12/21/2010 14\
:36:44 54 A
(Push the ignition switch?ignition
switch position is turned to ON) ?
PUSH warning ?(Push the ignition
switch ?ignition switch position is
turned to OFF)
6. Intelligent Key battery discharge
indicator
This indicator appears when the Intelligent
Key battery is running out of power.
If this indicator appears, replace the
battery with a new one. (See “Intelligent
Key battery replacement ”in the “8. Main-
tenance and do-it-yourself ”section.)
7. Intelligent Key ignition indicator
This indicator appears when the Intelligent
Key battery is running out of power and
when the Intelligent Key System and
vehicle are not communicating normally.
If this indicator appears, touch the ignition
switch with the Intelligent Key while
depressing the brake pedal. (See “Intelli-
gent Key battery discharge ”in the “5.
Starting and driving ”section.)
8. Parking brake release warning
This warning appears when the vehicle
speed is above 4 MPH (7 km/h) and the parking brake is applied.
9. Low fuel warning
This warning appears when the fuel level in
the tank is getting low. Refuel as soon as it
is convenient, preferably before the fuel
gauge reaches the empty (0) position.
There is a small reserve of fuel remaining
in the tank when the fuel gauge reaches
the empty (0) position.
10. Low washer fluid warning
This warning appears when the washer
tank fluid is at a low level. Add washer fluid
as necessary. (See
“Window washer fluid ”
in the “8. Maintenance and do-it-yourself ”
section.)
11. Door/trunk open warning (igni-
tion switch is in the ON position)
This warning appears if any of the doors
and/or the trunk lid are open or not closed
securely. The vehicle icon indicates which
door or the trunk lid is open on the display.
12. Intelligent Key system warning
This warning appears if there is a malfunc-
tion in the steering lock system or Intelli-
gent Key system. If this warning appears while the hybrid
system is stopped, the steering lock (if so
equipped) cannot be released or the hybrid
system cannot be started. If this warning
appears while the hybrid system is run-
ning, the vehicle can be driven. However,
contact an INFINITI retailer for repair as
soon as possible.
13. Loose fuel cap warning
This warning appears when the fuel-filler
cap is not tightened correctly after the
vehicle has been refueled. (See
“Fuel-filler
cap ”in the “3. Pre-driving checks and
adjustments ”section.)
14. Check tire pressure warning
This warning appears when the low tire
pressure warning light in the meter illumi-
nates and low tire pressure is detected. If
this warning appears, stop the vehicle and
adjust the pressure to the recommended
COLD tire pressure shown on the recom-
mended COLD tire pressure shown on the
Tire and Loading Information label. (See
“Low tire pressure warning light ”earlier in
this section and “Tire Pressure Monitoring
System (TPMS) ”in the “5. Starting and
driving ”section.)
Instruments and controls2-23
(Push the ignition switch ?ignition
switch position is turned to ON) ?
PUSH warning ?(Push the ignition
switch ?ignition switch position is
turned to OFF)
6. Intelligent Key battery discharge
indicator
This indicator appears when the Intelligent
Key battery is running out of power.
If this indicator appears, replace the
battery with a new one. (See “Intelligent
Key battery replacement ”in the “8. Main-
tenance and do-it-yourself ”section.)
7. Intelligent Key ignition indicator
This indicator appears when the Intelligent
Key battery is running out of power and
when the Intelligent Key System and
vehicle are not communicating normally.
If this indicator appears, touch the ignition
switch with the Intelligent Key while
depressing the brake pedal. (See “Intelli-
gent Key battery discharge ”in the “5.
Starting and driving ”section.)
8. Parking brake release warning
This warning appears when the vehicle
speed is above 4 MPH (7 km/h) and the parking brake is applied.
9. Low fuel warning
This warning appears when the fuel level in
the tank is getting low. Refuel as soon as it
is convenient, preferably before the fuel
gauge reaches the empty (0) position.
There is a small reserve of fuel remaining
in the tank when the fuel gauge reaches
the empty (0) position.
10. Low washer fluid warning
This warning appears when the washer
tank fluid is at a low level. Add washer fluid
as necessary. (See
“Window washer fluid ”
in the “8. Maintenance and do-it-yourself ”
section.)
11. Door/trunk open warning (igni-
tion switch is in the ON position)
This warning appears if any of the doors
and/or the trunk lid are open or not closed
securely. The vehicle icon indicates which
door or the trunk lid is open on the display.
12. Intelligent Key system warning
This warning appears if there is a malfunc-
tion in the steering lock system or Intelli-
gent Key system. If this warning appears while the hybrid
system is stopped, the steering lock (if so
equipped) cannot be released or the hybrid
system cannot be started. If this warning
appears while the hybrid system is run-
ning, the vehicle can be driven. However,
contact an INFINITI retailer for repair as
soon as possible.
13. Loose fuel cap warning
This warning appears when the fuel-filler
cap is not tightened correctly after the
vehicle has been refueled. (See
“Fuel-filler
cap ”in the “3. Pre-driving checks and
adjustments ”section.)
14. Check tire pressure warning
This warning appears when the low tire
pressure warning light in the meter illumi-
nates and low tire pressure is detected. If
this warning appears, stop the vehicle and
adjust the pressure to the recommended
COLD tire pressure shown on the recom-
mended COLD tire pressure shown on the
Tire and Loading Information label. (See
“Low tire pressure warning light ”earlier in
this section and “Tire Pressure Monitoring
System (TPMS) ”in the “5. Starting and
driving ”section.)
Instruments and controls2-23

858763.psp Nissan Infiniti OM OM2E HY51U0 Hybrid 1" gutter 12/21/2010 14\
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WARNING
.Radio waves could adversely affect
electric medical equipment. Those who
use a pacemaker should contact the
electric medical equipment manufacturer
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 com-
munication 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 condi-
tions 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 communicat-
ing with the vehicle as it receives radio
waves. The Intelligent Key system trans-
mits 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
broadcasting 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 perso- nal computer.
. When the vehicle is parked near a
parking meter.
In such cases, correct the operating condi-
tions before using the Intelligent Key
function 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.
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 repla-
cement” in the“8. Maintenance and do-it-
yourself ”section.
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
batteryiscompletelydischarged.Pay
special attention that the vehicle battery
Pre-driving checks and adjustments3-7
INTELLIGENT KEY SYSTEM
WARNING
. Radio waves could adversely affect
electric medical equipment. Those who
use a pacemaker should contact the
electric medical equipment manufacturer
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 com-
munication 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 condi-
tions 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 communicat-
ing with the vehicle as it receives radio
waves. The Intelligent Key system trans-
mits 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
broadcasting 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 perso- nal computer.
. When the vehicle is parked near a
parking meter.
In such cases, correct the operating condi-
tions before using the Intelligent Key
function 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.
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 repla-
cement” in the“8. Maintenance and do-it-
yourself ”section.
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
batteryiscompletelydischarged.Pay
special attention that the vehicle battery
Pre-driving checks and adjustments3-7
INTELLIGENT KEY SYSTEM

858763.psp Nissan Infiniti OM OM2E HY51U0 Hybrid 1" gutter 12/21/2010 14\
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5-12Starting and driving
4. Push the ignition switch while depres-sing 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 depres-
sing 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 dot
matrix liquid crystal display even if the
Intelligent 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 ”in the “8.
Maintenance and do-it-yourself ”sec-
tion.) .
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 appear-
ance and condition. Also check tires for
proper inflation.
. Lock all doors.
. Position seat and adjust head re-
straints.
. Adjust inside and outside mirrors.
. Fasten seat belts and ask all passen-
gers to do likewise.
. Check the operation of warning lights
when the ignition switch is pushed to
the ON position. (See “Warning/indica-
tor lights and audible reminders ”in the
“ 2. Instruments and controls ”section.) 1. Apply the parking brake.
2. Move the shift selector to P (Park)
position.
The INFINITI Direct Response Hybrid
TM
System is designed not to operate if
the shift selector is not in the P (Park)
position.
3. Depress the brake pedal and push the ignition switch to start the hybrid
system. 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.
BEFORE STARTING THE INFINITI DIRECT
RESPONSE HYBRIDTMSYSTEM STARTING THE INFINITI DIRECT RESPONSE
HYBRIDTMSYSTEM
5-12Starting and driving
4. Push the ignition switch while depres-
sing 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 depres-
sing 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 dot
matrix liquid crystal display even if the
Intelligent 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 ”in the “8.
Maintenance and do-it-yourself ”sec-
tion.) .
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 appear-
ance and condition. Also check tires for
proper inflation.
. Lock all doors.
. Position seat and adjust head re-
straints.
. Adjust inside and outside mirrors.
. Fasten seat belts and ask all passen-
gers to do likewise.
. Check the operation of warning lights
when the ignition switch is pushed to
the ON position. (See “Warning/indica-
tor lights and audible reminders ”in the
“ 2. Instruments and controls ”section.) 1. Apply the parking brake.
2. Move the shift selector to P (Park)
position.
The INFINITI Direct Response Hybrid
TM
System is designed not to operate if
the shift selector is not in the P (Park)
position.
3. Depress the brake pedal and push the ignition switch to start the hybrid
system. 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.
BEFORE STARTING THE INFINITI DIRECT
RESPONSE HYBRIDTMSYSTEM STARTING THE INFINITI DIRECT RESPONSE
HYBRIDTMSYSTEM

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8 Maintenance and do-it-yourself
Maintenance requirement .................................... 8-2Scheduled maintenance .................................. 8-2
General maintenance....................................... 8-2
Where to go for service ................................... 8-2
General maintenance ........................................... 8-3 Explanation of maintenance items ................... 8-3
Maintenance precautions ..................................... 8-5
Engine compartment check locations ................... 8-7 VQ35HR engine ............................................... 8-7
Engine cooling system ......................................... 8-9
Checking engine coolant level ....................... 8-10
Changing engine coolant ............................... 8-10
Inverter cooling system...................................... 8-11
Checking inverter coolant level ...................... 8-12
Changing inverter coolant.............................. 8-12
Engine oil .......................................................... 8-12
Checking engine oil level............................... 8-12
Changing engine oil and filter ....................... 8-13
Automatic transmission fluid ............................. 8-15
Power steering fluid........................................... 8-15
Brake fluid......................................................... 8-16 Brake fluid .................................................... 8-16
Window washer fluid ......................................... 8-17 12-volt battery .................................................. 8-18
Checking battery fluid level.......................... 8-18
Jump starting ............................................... 8-19
Spark plugs ...................................................... 8-19 Replacing spark plugs ................................. 8-19
Air cleaner ........................................................ 8-20
Windshield wiper blades ................................... 8-21 Cleaning ...................................................... 8-21
Replacing..................................................... 8-21
Brakes .............................................................. 8-22
Self-adjusting brakes ................................... 8-22
Brake pad wear warning .............................. 8-22
Fuses ................................................................ 8-23
Engine compartment or trunk room.............. 8-23
Passenger compartment............................... 8-25
Intelligent Key battery replacement ................... 8-26
Lights................................................................ 8-28 Headlights ................................................... 8-28
Exterior and interior lights ........................... 8-29
Wheels and tires ............................................... 8-31
Tire pressure ............................................... 8-31
Tire labeling ................................................ 8-35
Types of tires............................................... 8-37
Tire chains ................................................... 8-38
Changing wheels and tires........................... 8-38
8 Maintenance and do-it-yourself
Maintenance requirement .................................... 8-2Scheduled maintenance .................................. 8-2
General maintenance....................................... 8-2
Where to go for service ................................... 8-2
General maintenance ........................................... 8-3 Explanation of maintenance items ................... 8-3
Maintenance precautions ..................................... 8-5
Engine compartment check locations ................... 8-7 VQ35HR engine ............................................... 8-7
Engine cooling system ......................................... 8-9
Checking engine coolant level ....................... 8-10
Changing engine coolant ............................... 8-10
Inverter cooling system...................................... 8-11
Checking inverter coolant level ...................... 8-12
Changing inverter coolant.............................. 8-12
Engine oil .......................................................... 8-12
Checking engine oil level............................... 8-12
Changing engine oil and filter ....................... 8-13
Automatic transmission fluid ............................. 8-15
Power steering fluid........................................... 8-15
Brake fluid......................................................... 8-16 Brake fluid .................................................... 8-16
Window washer fluid ......................................... 8-17 12-volt battery .................................................. 8-18
Checking battery fluid level.......................... 8-18
Jump starting ............................................... 8-19
Spark plugs ...................................................... 8-19 Replacing spark plugs ................................. 8-19
Air cleaner ........................................................ 8-20
Windshield wiper blades ................................... 8-21 Cleaning ...................................................... 8-21
Replacing..................................................... 8-21
Brakes .............................................................. 8-22
Self-adjusting brakes ................................... 8-22
Brake pad wear warning .............................. 8-22
Fuses ................................................................ 8-23
Engine compartment or trunk room.............. 8-23
Passenger compartment............................... 8-25
Intelligent Key battery replacement ................... 8-26
Lights................................................................ 8-28 Headlights ................................................... 8-28
Exterior and interior lights ........................... 8-29
Wheels and tires ............................................... 8-31
Tire pressure ............................................... 8-31
Tire labeling ................................................ 8-35
Types of tires............................................... 8-37
Tire chains ................................................... 8-38
Changing wheels and tires........................... 8-38

858763.psp Nissan Infiniti OM OM2E HY51U0 Hybrid 1" gutter 12/21/2010 14\
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8-6Maintenance and do-it-yourself
ing the service plug can cause severe
burns or electric shock that may result in
serious injury or death.
. The hybrid system uses high voltage up
to 408V. 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 selector to P
(Park).
. Be sure the ignition switch is in the OFF
or LOCK position when performing 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 whenever
you work on your vehicle.
. Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the
ignition key is in the OFF position and
the engine is not running. To avoid
injury, always disconnect the negative
battery cable before working near the
fan.
. Ifyoumustruntheengineinan
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
supportedonlybyajack.Ifitis
necessary to work under the vehicle,
support it with safety stands.
. Keep smoking materials, flame and
sparks away from the fuel tank and
battery.
CAUTION
.Do not work under the hood while the
engine is hot. Turn the hybrid system off
and wait until it cools down. .
Avoid direct contact with used engine oil
and coolant. Improperly disposed engine
oil, coolant, and/or other vehicle fluids
can damage the environment. Always
conform to local regulations for disposal
of vehicle fluid.
. Never leave the engine or the transmis-
sion related component harness connec-
tor disconnected while the ignition
switch is in the ON position.
. Never connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position.
This “8. Maintenance and do-it-yourself ”
section gives instructions 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 ”in the “9.
Technical and consumer information ”sec-
tion.)
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, we recommend
8-6Maintenance and do-it-yourself
ing the service plug can cause severe
burns or electric shock that may result in
serious injury or death.
. The hybrid system uses high voltage up
to 408V. 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 selector to P
(Park).
. Be sure the ignition switch is in the OFF
or LOCK position when performing 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 whenever
you work on your vehicle.
. Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the
ignition key is in the OFF position and
the engine is not running. To avoid
injury, always disconnect the negative
battery cable before working near the
fan.
. Ifyoumustruntheengineinan
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
supportedonlybyajack.Ifitis
necessary to work under the vehicle,
support it with safety stands.
. Keep smoking materials, flame and
sparks away from the fuel tank and
battery.
CAUTION
.Do not work under the hood while the
engine is hot. Turn the hybrid system off
and wait until it cools down. .
Avoid direct contact with used engine oil
and coolant. Improperly disposed engine
oil, coolant, and/or other vehicle fluids
can damage the environment. Always
conform to local regulations for disposal
of vehicle fluid.
. Never leave the engine or the transmis-
sion related component harness connec-
tor disconnected while the ignition
switch is in the ON position.
. Never connect or disconnect the battery
or any transistorized component while
the ignition switch is in the ON position.
This “8. Maintenance and do-it-yourself ”
section gives instructions 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 ”in the “9.
Technical and consumer information ”sec-
tion.)
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, we recommend

858763.psp Nissan Infiniti OM OM2E HY51U0 Hybrid 1" gutter 12/21/2010 14\
:36:44 237 A
JUMP STARTING
If jump starting is necessary, see“Jump
starting ”in the “6. In case of emergency ”
section. If the hybrid system does not start
by jump starting, the 12-volt battery may
have to be replaced. Contact an INFINITI
retailer.WARNING
Be sure the engine and the ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to remove
the spark plugs. An incorrect socket can
damage the spark plugs.
SDI2020
REPLACING SPARK PLUGS
If replacement is required, see an INFINITI
retailer for servicing.
Iridium-tipped spark plugs
It is not necessary to replace the iridium-
tipped spark plugs as frequently as the
conventional type spark plugs since they
will last much longer. Follow the main-
tenance schedule in “INFINITI Service and
Maintenance Guide ”, but do not reuse
them by cleaning or regapping.
Maintenance and do-it-yourself8-19
SPARK PLUGS
JUMP STARTING
If jump starting is necessary, see “Jump
starting ”in the “6. In case of emergency ”
section. If the hybrid system does not start
by jump starting, the 12-volt battery may
have to be replaced. Contact an INFINITI
retailer.WARNING
Be sure the engine and the ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to remove
the spark plugs. An incorrect socket can
damage the spark plugs.
SDI2020
REPLACING SPARK PLUGS
If replacement is required, see an INFINITI
retailer for servicing.
Iridium-tipped spark plugs
It is not necessary to replace the iridium-
tipped spark plugs as frequently as the
conventional type spark plugs since they
will last much longer. Follow the main-
tenance schedule in “INFINITI Service and
Maintenance Guide ”, but do not reuse
them by cleaning or regapping.
Maintenance and do-it-yourself8-19
SPARK PLUGS

858763.psp Nissan Infiniti OM OM2E HY51U0 Hybrid 1" gutter 12/21/2010 14\
:36:44 240 B
8-26Maintenance and do-it-yourself
WARNING
If the extended storage switch malfunc-
tions, or if the fuse is open, it is not
necessary to replace the switch. In this
case, remove the extended storage switch
and replace it with a new fuse of the same
rating.
How to remove the extended storage
switch:
1. To remove the extended storage switch,be sure the ignition switch is in the OFF
or LOCK position.
2. Be sure the headlight switch is in the OFF position.
3. Remove the fuse box cover.
4. Pinch the locking tabs
*1found on
each side of the storage switch.
5. Pull the storage switch straight out from the fuse box
*2.
CAUTION
Be careful not to allow children to swallow
the battery and removed parts.
SDI2294
To replace the battery:
1. Release the lock knob at the back of theIntelligent Key and remove the mechan-
ical key.
2. Insert a flat-blade screwdriver wrapped with a cloth into the slit of the corner
INTELLIGENT KEY BATTERY REPLACEMENT
8-26Maintenance and do-it-yourself
WARNING
If the extended storage switch malfunc-
tions, or if the fuse is open, it is not
necessary to replace the switch. In this
case, remove the extended storage switch
and replace it with a new fuse of the same
rating.
How to remove the extended storage
switch:
1. To remove the extended storage switch,
be sure the ignition switch is in the OFF
or LOCK position.
2. Be sure the headlight switch is in the OFF position.
3. Remove the fuse box cover.
4. Pinch the locking tabs
*1found on
each side of the storage switch.
5. Pull the storage switch straight out from the fuse box
*2.
CAUTION
Be careful not to allow children to swallow
the battery and removed parts.
SDI2294
To replace the battery:
1. Release the lock knob at the back of theIntelligent Key and remove the mechan-
ical key.
2. Insert a flat-blade screwdriver wrapped with a cloth into the slit of the corner
INTELLIGENT KEY BATTERY REPLACEMENT

858763.psp Nissan Infiniti OM OM2E HY51U0 Hybrid 1" gutter 12/21/2010 14\
:36:44 241 A
and twist it to separate the upper part
from the lower part.
3. Replace the battery with a new one. Recommended battery:
CR2025 or equivalent
.Do not touch the internal circuit andelectric terminals as it could cause a
malfunction.
.Hold the battery by the edges.
Holding the battery across the con-
tact points will seriously deplete the
storage capacity.
.Make sure that the + side faces thebottom of the case.SDI1889
4. Align the tips of the upper and lower
parts, and then push them together
until it is securely closed.
5. Operate the buttons to check its operation.
See an INFINITI retailer if you need any
assistance for replacement.
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 device
must accept any interference received,
including interference that may cause
undesired operation.
Note: Changes or modifications not ex-
pressly approved by the party responsible
for compliance could void the user’
s
authority to operate the equipment.
For Canada:
This device complies with RSS-210 of
Industry Canada.
Operation subject to the following two
conditions: (1) this device may not cause
interference, and (2) this device must
accept any interference, including inter-
ference that may cause undesired opera-
tion of the device.
Maintenance and do-it-yourself8-27
and twist it to separate the upper part
from the lower part.
3. Replace the battery with a new one. Recommended battery:
CR2025 or equivalent
.Do not touch the internal circuit andelectric terminals as it could cause a
malfunction.
.Hold the battery by the edges.
Holding the battery across the con-
tact points will seriously deplete the
storage capacity.
.Make sure that the + side faces thebottom of the case.SDI1889
4. Align the tips of the upper and lower
parts, and then push them together
until it is securely closed.
5. Operate the buttons to check its operation.
See an INFINITI retailer if you need any
assistance for replacement.
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 device
must accept any interference received,
including interference that may cause
undesired operation.
Note: Changes or modifications not ex-
pressly approved by the party responsible
for compliance could void the user’
s
authority to operate the equipment.
For Canada:
This device complies with RSS-210 of
Industry Canada.
Operation subject to the following two
conditions: (1) this device may not cause
interference, and (2) this device must
accept any interference, including inter-
ference that may cause undesired opera-
tion of the device.
Maintenance and do-it-yourself8-27