engine overheat INFINITI M-HEV 2012 Owners Manual

858763.psp Nissan Infiniti OM OM2E HY51U0 Hybrid 1" gutter 12/21/2010 14\
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tion. High voltage harnesses are orange.
The system can be hot while and after
starting. Be careful of both the high voltage
and the high temperature.
HYBRID VEHICLE CHARACTERISTICS
WARNING
.When you leave your vehicle, be sure to
place the ignition switch in the OFF
position.
. Be sure to put the transmission in the P
(Park) position because the vehicle can
move when the READY to drive indicator
light is on even if the gasoline engine is
not running. When the READY to drive
indicator light is on, do not leave your
vehicle in a shift position other than the
P (Park) position. The vehicle will creep
and start abruptly if the accelerator
pedal is depressed by mistake. This
may cause serious injury or death.
CAUTION
If the vehicle is parked for a long period of
time, the battery discharges gradually. To avoid this occurrence, drive the vehicle for
approximately 30 minutes at least once
every two to three months. Otherwise, the
Lithium ion (Li-ion) battery may be da-
maged. If the Li-ion battery is completely
discharged and the hybrid system cannot be
activated, contact an INFINITI retailer.
High voltage parts and harnesses on the
hybrid vehicles emit approximately the
same amount of electromagnetic waves
as the conventional gasoline-powered ve-
hicles or home electronic appliances de-
spite of their electromagnetic shieldings.
Unwanted noise may occur in the reception
of a mobile two-way radio.
Charging the Li-ion battery while driving is
important. The vehicle cannot run if the Li-
ion battery is discharged. In the N (Neutral)
position, the Li-ion battery does not
recharge. Leaving the transmission in the
N (Neutral) position for an extended period
of time may discharge the Li-ion battery.
The Li-ion battery recharges when the shift
selector is in any position other than N
(Neutral).
JVO0019X
An air vent*Ais located on the rear parcel
shelf to cool the Li-ion battery. If the vent is
covered, the battery will overheat resulting
in reduced output performance of the
hybrid system. See “Lithium-ion (Li-ion)
battery air vent ”in the “7. Appearance and
care ”section.
Hybrid System OverviewHybrid System-11
tion. High voltage harnesses are orange.
The system can be hot while and after
starting. Be careful of both the high voltage
and the high temperature.
HYBRID VEHICLE CHARACTERISTICS
WARNING
. When you leave your vehicle, be sure to
place the ignition switch in the OFF
position.
. Be sure to put the transmission in the P
(Park) position because the vehicle can
move when the READY to drive indicator
light is on even if the gasoline engine is
not running. When the READY to drive
indicator light is on, do not leave your
vehicle in a shift position other than the
P (Park) position. The vehicle will creep
and start abruptly if the accelerator
pedal is depressed by mistake. This
may cause serious injury or death.
CAUTION
If the vehicle is parked for a long period of
time, the battery discharges gradually. To avoid this occurrence, drive the vehicle for
approximately 30 minutes at least once
every two to three months. Otherwise, the
Lithium ion (Li-ion) battery may be da-
maged. If the Li-ion battery is completely
discharged and the hybrid system cannot be
activated, contact an INFINITI retailer.
High voltage parts and harnesses on the
hybrid vehicles emit approximately the
same amount of electromagnetic waves
as the conventional gasoline-powered ve-
hicles or home electronic appliances de-
spite of their electromagnetic shieldings.
Unwanted noise may occur in the reception
of a mobile two-way radio.
Charging the Li-ion battery while driving is
important. The vehicle cannot run if the Li-
ion battery is discharged. In the N (Neutral)
position, the Li-ion battery does not
recharge. Leaving the transmission in the
N (Neutral) position for an extended period
of time may discharge the Li-ion battery.
The Li-ion battery recharges when the shift
selector is in any position other than N
(Neutral).
JVO0019X
An air vent*Ais located on the rear parcel
shelf to cool the Li-ion battery. If the vent is
covered, the battery will overheat resulting
in reduced output performance of the
hybrid system. See “Lithium-ion (Li-ion)
battery air vent ”in the “7. Appearance and
care ”section.
Hybrid System OverviewHybrid System-11

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Hybrid System-12Hybrid System Overview
JVO0021X
CAUTION
Do not place objects over or into the air
vent. The Li-ion battery may overheat and be
damaged.
JVO0006X
CAUTION
Do not load large amounts of water in open
containers (aquariums or buckets) into the
vehicle. If the water spills onto the Li-ion
battery, it may cause a short circuit and
damage the battery.
JVO0020X
CAUTION
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.
Noise and vibration
After the hybrid system is activated, the
following noises and vibrations that are
unique to the hybrid system may occur.
This does not indicate a malfunction.
.Electric motor noise from the engine
compartment
Hybrid System-12Hybrid System Overview
JVO0021X
CAUTION
Do not place objects over or into the air
vent. The Li-ion battery may overheat and be
damaged.
JVO0006X
CAUTION
Do not load large amounts of water in open
containers (aquariums or buckets) into the
vehicle. If the water spills onto the Li-ion
battery, it may cause a short circuit and
damage the battery.
JVO0020X
CAUTION
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.
Noise and vibration
After the hybrid system is activated, the
following noises and vibrations that are
unique to the hybrid system may occur.
This does not indicate a malfunction.
. Electric motor noise from the engine
compartment

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light illuminates and then turns off. This
indicates that the high temperature sensor
in the engine coolant system is opera-
tional.
CAUTION
If the high temperature warning light
illuminates when the ignition switch is in
the ON position, it may indicate the engine
temperature is extremely high.
Stop the vehicle safety as soon as possible.
If the vehicle is overheated, continuing
vehicle operation may seriously damage
the engine. (See“If your vehicle overheats ”
in the “6. In case of emergency ”section for
the immediate action required.)
Hybrid EPS (Electrical Power
Steering) warning light
When the ignition switch is in the ON
position, the Hybrid EPS (Electrical Power
Steering) warning light illuminates. After
starting the hybrid system, the Hybrid EPS
warning light turns off. This indicates that
the electrical power steering system is
operational. If the Hybrid EPS warning light illuminates
while the hybrid system is running, it may
indicates the Hybrid EPS system is not
functioning properly and may need servi-
cing. Have the Hybrid EPS system checked
by an INFINITI retailer.
When the Hybrid EPS warning light illumi-
nates with the hybrid system running, the
power assist to the steering will cease
operation but you will still have control of
the vehicle. At this time, greater steering
efforts are required to operate the steering
wheel, especially in sharp turns and at low
speeds. However, if the steering wheel
operation is still performed, the Hybrid EPS
may stop and the Hybrid EPS warning light
will illuminate. Place the ignition switch in
the OFF position and refrain from perform-
ing steering wheel operations for a short
period of time. The temperature of the
Hybrid EPS system will go down and the
power assist level will return to normal
after starting the hybrid system. The Hybrid
EPS warning light will go off.
Intelligent Cruise Control (ICC)
system warning light (orange; if so
equipped)
This light comes on if there is a malfunc- tion in the Intelligent Cruise Control (ICC)
system.
If the warning light comes on, park the
vehicle in a safe place. Stop the hybrid
system, restart the hybrid system, resume
driving and set the ICC system again.
If it is not possible to set the system or the
indicator stays on, it may indicate that the
system is malfunctioning. Although the
vehicle is still driveable under normal
conditions, have the vehicle checked at
an INFINITI retailer.
Lane departure warning light
(orange; if so equipped)
When the ignition switch is pushed to the
ON position, the light will come on in
orange, turn green, and then turn off. This
indicates that the Lane Departure Warning
(LDW) and Lane Departure Prevention (LDP)
systems are operational.
While the LDW and/or LDP system is on,
the light will blink in orange and a warning
chime will sound if the vehicle is traveling
close to either the left or the right of a
traveling lane with detectable lane mar-
kers.
If the light comes on in orange and remains
on, it may indicate that the LDW and LDP
Instruments and controls2-13
light illuminates and then turns off. This
indicates that the high temperature sensor
in the engine coolant system is opera-
tional.
CAUTION
If the high temperature warning light
illuminates when the ignition switch is in
the ON position, it may indicate the engine
temperature is extremely high.
Stop the vehicle safety as soon as possible.
If the vehicle is overheated, continuing
vehicle operation may seriously damage
the engine. (See “If your vehicle overheats ”
in the “6. In case of emergency ”section for
the immediate action required.)
Hybrid EPS (Electrical Power
Steering) warning light
When the ignition switch is in the ON
position, the Hybrid EPS (Electrical Power
Steering) warning light illuminates. After
starting the hybrid system, the Hybrid EPS
warning light turns off. This indicates that
the electrical power steering system is
operational. If the Hybrid EPS warning light illuminates
while the hybrid system is running, it may
indicates the Hybrid EPS system is not
functioning properly and may need servi-
cing. Have the Hybrid EPS system checked
by an INFINITI retailer.
When the Hybrid EPS warning light illumi-
nates with the hybrid system running, the
power assist to the steering will cease
operation but you will still have control of
the vehicle. At this time, greater steering
efforts are required to operate the steering
wheel, especially in sharp turns and at low
speeds. However, if the steering wheel
operation is still performed, the Hybrid EPS
may stop and the Hybrid EPS warning light
will illuminate. Place the ignition switch in
the OFF position and refrain from perform-
ing steering wheel operations for a short
period of time. The temperature of the
Hybrid EPS system will go down and the
power assist level will return to normal
after starting the hybrid system. The Hybrid
EPS warning light will go off.
Intelligent Cruise Control (ICC)
system warning light (orange; if so
equipped)
This light comes on if there is a malfunc- tion in the Intelligent Cruise Control (ICC)
system.
If the warning light comes on, park the
vehicle in a safe place. Stop the hybrid
system, restart the hybrid system, resume
driving and set the ICC system again.
If it is not possible to set the system or the
indicator stays on, it may indicate that the
system is malfunctioning. Although the
vehicle is still driveable under normal
conditions, have the vehicle checked at
an INFINITI retailer.
Lane departure warning light
(orange; if so equipped)
When the ignition switch is pushed to the
ON position, the light will come on in
orange, turn green, and then turn off. This
indicates that the Lane Departure Warning
(LDW) and Lane Departure Prevention (LDP)
systems are operational.
While the LDW and/or LDP system is on,
the light will blink in orange and a warning
chime will sound if the vehicle is traveling
close to either the left or the right of a
traveling lane with detectable lane mar-
kers.
If the light comes on in orange and remains
on, it may indicate that the LDW and LDP
Instruments and controls2-13

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:36:44 57 A
last reset. Resetting is done by pushing the
switch*Bfor longer than 1 second.
(The average speed is also reset at the
same time.)
The display is updated every 30 seconds.
At about the first 1/3 mile (500 m) after a
reset, the display shows “——”.
Speed:
The average speed mode shows the
average vehicle speed since the last reset.
Resetting is done by pushing the
switch*Bfor longer than 1 second. (The
average fuel consumption is also reset at
the same time.)
The display is updated every 30 seconds.
The first 30 seconds after a reset, the
display shows “——”.
6. Elapsed time and trip odometer
(mls or km)
Elapsed time:
The elapsed time mode shows the time
since the last reset. The displayed time can
be reset by pushing the
switch*Bfor
longer than 1 second. (The trip odometer is
also reset at the same time.) Trip odometer:
The trip odometer mode shows the total
distance the vehicle has been driven since
the last reset. Resetting is done by pushing
the
switch*Bfor longer than 1
second. (The elapsed time is also reset at
the same time.)
7. Distance to empty (dte —mls or
km)
The distance to empty (dte) mode provides
you with an estimation of the distance that
can be driven before refueling. The dte is
constantly being calculated, based on the
amount of fuel in the fuel tank and the
actual fuel consumption.
The display is updated every 30 seconds.
The dte mode includes a low range warning
feature. If the fuel level is low, the warning
is displayed on the screen.
When the fuel level drops even lower, the
dte display will change to “——”.
. If the amount of fuel added is small, the
display just before the ignition switch
is pushed to the OFF position may
continue to be displayed.
. When driving uphill or rounding curves,
the fuel in the tank shifts, which may momentarily change the display.
8. Engine coolant temperature
gauge
The gauge indicates the engine coolant
temperature.
This displays the temperature of the
engine coolant. The range of coolant over-
heat is indicated by the horizontal line of
the upper part of the H mark.
The engine coolant temperature varies with
the outside air temperature and driving
conditions.
CAUTION
If the engine is overheated, continued
operation of the vehicle may seriously
damage the engine. See
“If your vehicle
overheats ”in the “6. In case of emergency ”
section for immediate action required.
9. Outside air temperature (ICY —8F
or 8C)
The outside air temperature is displayed in
8For 8C in the range of −22 to 131 8F( −30
to 55 8C).
Instruments and controls2-29
last reset. Resetting is done by pushing the
switch*Bfor longer than 1 second.
(The average speed is also reset at the
same time.)
The display is updated every 30 seconds.
At about the first 1/3 mile (500 m) after a
reset, the display shows “——”.
Speed:
The average speed mode shows the
average vehicle speed since the last reset.
Resetting is done by pushing the
switch*Bfor longer than 1 second. (The
average fuel consumption is also reset at
the same time.)
The display is updated every 30 seconds.
The first 30 seconds after a reset, the
display shows “——”.
6. Elapsed time and trip odometer
(mls or km)
Elapsed time:
The elapsed time mode shows the time
since the last reset. The displayed time can
be reset by pushing the
switch*Bfor
longer than 1 second. (The trip odometer is
also reset at the same time.) Trip odometer:
The trip odometer mode shows the total
distance the vehicle has been driven since
the last reset. Resetting is done by pushing
the
switch*Bfor longer than 1
second. (The elapsed time is also reset at
the same time.)
7. Distance to empty (dte —mls or
km)
The distance to empty (dte) mode provides
you with an estimation of the distance that
can be driven before refueling. The dte is
constantly being calculated, based on the
amount of fuel in the fuel tank and the
actual fuel consumption.
The display is updated every 30 seconds.
The dte mode includes a low range warning
feature. If the fuel level is low, the warning
is displayed on the screen.
When the fuel level drops even lower, the
dte display will change to “——”.
. If the amount of fuel added is small, the
display just before the ignition switch
is pushed to the OFF position may
continue to be displayed.
. When driving uphill or rounding curves,
the fuel in the tank shifts, which may momentarily change the display.
8. Engine coolant temperature
gauge
The gauge indicates the engine coolant
temperature.
This displays the temperature of the
engine coolant. The range of coolant over-
heat is indicated by the horizontal line of
the upper part of the H mark.
The engine coolant temperature varies with
the outside air temperature and driving
conditions.
CAUTION
If the engine is overheated, continued
operation of the vehicle may seriously
damage the engine. See
“If your vehicle
overheats ”in the “6. In case of emergency ”
section for immediate action required.
9. Outside air temperature (ICY —8F
or 8C)
The outside air temperature is displayed in
8For 8C in the range of −22 to 131 8F( −30
to 55 8C).
Instruments and controls2-29

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5-4Starting and driving
—You have had an accident involvingdamage to the exhaust system,
underbody, or rear of the vehicle.
THREE-WAY CATALYST
The three-way catalyst is an emission
control device installed in the exhaust
system. Exhaust gases in the three-way
catalyst are burned at high temperatures to
help reduce pollutants.
WARNING
. The exhaust gas and the exhaust system
are very hot. Keep people, animals or
flammable materials away from the
exhaust system components.
. Do not stop or park the vehicle over
flammable materials such as dry grass,
waste paper or rags. They may ignite and
cause a fire.
CAUTION
.Do not use leaded gasoline. Deposits
from leaded gasoline seriously reduce the three-way catalyst
’s ability to help
reduce exhaust pollutants.
. Keep your engine tuned up. Malfunctions
in the ignition, fuel injection, or elec-
trical systems can cause overrich fuel
flow into the three-way catalyst, causing
it to overheat. Do not keep driving if the
engine misfires, or if noticeable loss of
performance or other unusual operating
conditions are detected. Have the vehicle
inspected promptly by an INFINITI retai-
ler.
. Avoid driving with an extremely low fuel
level. Running out of fuel could cause
the engine to misfire, damaging the
three-way catalyst.
. Do not race the engine while warming it
up.
. Do not push or tow your vehicle to start
the hybrid system.
TIRE PRESSURE MONITORING SYS-
TEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your vehicle
has been equipped with a Tire Pressure
Monitoring System (TPMS) that illuminates
a low tire pressure telltale when one or
more of your tires is significantly under-
inflated. Accordingly, when the low tire
pressure telltale illuminates, you should
stop and check your tires as soon as
possible, and inflate them to the proper
pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and
can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle ’s handling and
stopping ability.
Please note that the TPMS is not a
substitute for proper tire maintenance,
5-4Starting and driving
—You have had an accident involving damage to the exhaust system,
underbody, or rear of the vehicle.
THREE-WAY CATALYST
The three-way catalyst is an emission
control device installed in the exhaust
system. Exhaust gases in the three-way
catalyst are burned at high temperatures to
help reduce pollutants.
WARNING
. The exhaust gas and the exhaust system
are very hot. Keep people, animals or
flammable materials away from the
exhaust system components.
. Do not stop or park the vehicle over
flammable materials such as dry grass,
waste paper or rags. They may ignite and
cause a fire.
CAUTION
.Do not use leaded gasoline. Deposits
from leaded gasoline seriously reduce the three-way catalyst
’s ability to help
reduce exhaust pollutants.
. Keep your engine tuned up. Malfunctions
in the ignition, fuel injection, or elec-
trical systems can cause overrich fuel
flow into the three-way catalyst, causing
it to overheat. Do not keep driving if the
engine misfires, or if noticeable loss of
performance or other unusual operating
conditions are detected. Have the vehicle
inspected promptly by an INFINITI retai-
ler.
. Avoid driving with an extremely low fuel
level. Running out of fuel could cause
the engine to misfire, damaging the
three-way catalyst.
. Do not race the engine while warming it
up.
. Do not push or tow your vehicle to start
the hybrid system.
TIRE PRESSURE MONITORING SYS-
TEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your vehicle
has been equipped with a Tire Pressure
Monitoring System (TPMS) that illuminates
a low tire pressure telltale when one or
more of your tires is significantly under-
inflated. Accordingly, when the low tire
pressure telltale illuminates, you should
stop and check your tires as soon as
possible, and inflate them to the proper
pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and
can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle ’s handling and
stopping ability.
Please note that the TPMS is not a
substitute for proper tire maintenance,

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6-12In case of emergency
CAUTION
.Do not continue to drive if your vehicle
overheats. Doing so could cause engine
damage or a vehicle fire.
. To avoid the danger of being scalded,
never remove the radiator cap while the
engine is still hot. When the radiator cap
is removed, pressurized hot water will
spurt out, possibly causing serious
injury.
. Do not open the hood if steam is coming
out.
If your vehicle is overheating (indicated by
an extremely high temperature gauge
reading), or if you feel a lack of engine
power, detect abnormal noise, etc., take
the following steps:
1. Move the vehicle safely off the road,
apply the parking brake and move the
selector lever to the P (Park) position.
Do not turn the INFINITI Direct Re-
sponse Hybrid
TMSystem off.
2. Turn off the climate control. Open all the windows, move the heater or air
conditioner temperature control to maximum hot and fan control to high
speed.
3. If engine overheating is caused by climbing a long hill on a hot day, run
the engine at a fast idle (approximately
1,500 rpm) until the temperature gauge
indication returns to normal.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from the
radiator before opening the hood. (If
steam or coolant is escaping, turn off
the hybrid system.) Do not open the
hood further until no steam or coolant
can be seen.
5. Open the engine hood.
WARNING
If steam or water is coming from the engine,
stand clear to prevent getting burned.
6. Also check if the cooling fan is running. The radiator hoses and radiator should
not leak water. If coolant is leaking or
the cooling fan does not run, stop the
hybrid system.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or the
engine cooling fan. The engine cooling fan
can start at any time.
7. After the engine cools down, check thecoolant level in the reservoir tank with
the engine running. Add coolant to the
reservoir tank if necessary. Have your
vehicle repaired at the nearest INFINITI
retailer.
If needed, Roadside Assistance is avail-
able. Please see your Warranty Information
Booklet or Roadside Assistance I.D. Card
for the toll-free number to call (U.S.) or
Warranty & Roadside Assistance Informa-
tion Booklet (Canada).
IF YOUR VEHICLE OVERHEATS
6-12In case of emergency
CAUTION
. Do not continue to drive if your vehicle
overheats. Doing so could cause engine
damage or a vehicle fire.
. To avoid the danger of being scalded,
never remove the radiator cap while the
engine is still hot. When the radiator cap
is removed, pressurized hot water will
spurt out, possibly causing serious
injury.
. Do not open the hood if steam is coming
out.
If your vehicle is overheating (indicated by
an extremely high temperature gauge
reading), or if you feel a lack of engine
power, detect abnormal noise, etc., take
the following steps:
1. Move the vehicle safely off the road,
apply the parking brake and move the
selector lever to the P (Park) position.
Do not turn the INFINITI Direct Re-
sponse Hybrid
TMSystem off.
2. Turn off the climate control. Open all the windows, move the heater or air
conditioner temperature control to maximum hot and fan control to high
speed.
3. If engine overheating is caused by climbing a long hill on a hot day, run
the engine at a fast idle (approximately
1,500 rpm) until the temperature gauge
indication returns to normal.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from the
radiator before opening the hood. (If
steam or coolant is escaping, turn off
the hybrid system.) Do not open the
hood further until no steam or coolant
can be seen.
5. Open the engine hood.
WARNING
If steam or water is coming from the engine,
stand clear to prevent getting burned.
6. Also check if the cooling fan is running. The radiator hoses and radiator should
not leak water. If coolant is leaking or
the cooling fan does not run, stop the
hybrid system.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or the
engine cooling fan. The engine cooling fan
can start at any time.
7. After the engine cools down, check thecoolant level in the reservoir tank with
the engine running. Add coolant to the
reservoir tank if necessary. Have your
vehicle repaired at the nearest INFINITI
retailer.
If needed, Roadside Assistance is avail-
able. Please see your Warranty Information
Booklet or Roadside Assistance I.D. Card
for the toll-free number to call (U.S.) or
Warranty & Roadside Assistance Informa-
tion Booklet (Canada).
IF YOUR VEHICLE OVERHEATS

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The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/Cool-
ant (blue) and 50% water to provide year-
round anti-freeze and coolant protection.
The anti-freeze solution contains rust and
corrosion inhibitors. Additional engine
cooling system additives are not neces-
sary.
WARNING
.Never remove the radiator or coolant
reservoir cap when the engine is hot.
Wait until the engine and radiator cool
down. Serious burns could be caused by
high pressure fluid escaping from the
radiator. See precautions in “If your
vehicle overheats ”in the “6. In case of
emergency ”section of this manual.
. The radiator is equipped with a pressure
type radiator cap. To prevent engine
damage, use only a genuine NISSAN
radiator cap.
CAUTION
.When adding or replacing coolant, be
sure to use only Genuine NISSAN Long
Life Antifreeze/Coolant (blue) or equiva-
lent. Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) is pre-diluted to
provide antifreeze protection to −348 F
( − 37 8C). If additional freeze protection is
needed due to weather where you
operate your vehicle, add Genuine
NISSAN Long Life Antifreeze/Coolant
(blue) concentrate following the direc-
tions on the container. If an equivalent
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is used,
follow the coolant manufacture ’s instruc-
tions to maintain minimum antifreeze
protection to −34 8F( −37 8C). The use of
other types of coolant solutions other
than Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) or equivalent may
damage the engine cooling system.
. The life expectancy of the factory-fill
coolant is 105,000 miles (168,000 km)
or 7 years. Mixing any other type of
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) , including Genuine NISSAN Long Life Antifreeze/
Coolant (green), or the use of nondis-
tilled water will reduce the life expec-
tancy of the factory-fill coolant. Refer to
the INFINITI Service and Maintenance
Guide for more details.
. Never use any additives in the coolant
such as radiator sealer in the cooling
system. This may cause damage to
electrical equipment such as the motor
and inverter, and also to engine and
transmission.
Maintenance and do-it-yourself8-9
ENGINE COOLING SYSTEM
The engine cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/Cool-
ant (blue) and 50% water to provide year-
round anti-freeze and coolant protection.
The anti-freeze solution contains rust and
corrosion inhibitors. Additional engine
cooling system additives are not neces-
sary.
WARNING
.Never remove the radiator or coolant
reservoir cap when the engine is hot.
Wait until the engine and radiator cool
down. Serious burns could be caused by
high pressure fluid escaping from the
radiator. See precautions in “If your
vehicle overheats ”in the “6. In case of
emergency ”section of this manual.
. The radiator is equipped with a pressure
type radiator cap. To prevent engine
damage, use only a genuine NISSAN
radiator cap.
CAUTION
.When adding or replacing coolant, be
sure to use only Genuine NISSAN Long
Life Antifreeze/Coolant (blue) or equiva-
lent. Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) is pre-diluted to
provide antifreeze protection to −348 F
( − 37 8C). If additional freeze protection is
needed due to weather where you
operate your vehicle, add Genuine
NISSAN Long Life Antifreeze/Coolant
(blue) concentrate following the direc-
tions on the container. If an equivalent
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) is used,
follow the coolant manufacture ’s instruc-
tions to maintain minimum antifreeze
protection to −34 8F( −37 8C). The use of
other types of coolant solutions other
than Genuine NISSAN Long Life Anti-
freeze/Coolant (blue) or equivalent may
damage the engine cooling system.
. The life expectancy of the factory-fill
coolant is 105,000 miles (168,000 km)
or 7 years. Mixing any other type of
coolant other than Genuine NISSAN Long
Life Antifreeze/Coolant (blue) , including Genuine NISSAN Long Life Antifreeze/
Coolant (green), or the use of nondis-
tilled water will reduce the life expec-
tancy of the factory-fill coolant. Refer to
the INFINITI Service and Maintenance
Guide for more details.
. Never use any additives in the coolant
such as radiator sealer in the cooling
system. This may cause damage to
electrical equipment such as the motor
and inverter, and also to engine and
transmission.
Maintenance and do-it-yourself8-9
ENGINE COOLING SYSTEM

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8-10Maintenance and do-it-yourself
SDI2043
CHECKING ENGINE COOLANT LEVEL
Check the coolant levelin the reservoir
when the engine is cold. If the coolant
level is below MIN
*2, open the reservoir
tank cap and add coolant up to the MAX
*1
level. If the reservoir tank is empty, check
the coolant level in the radiator when the
engine is cold. If there is insufficient
coolant in the radiator, fill the radiator
with coolant up to the filler opening and
also add it to the reservoir tank up to the
MAX level
*1.
Tighten the cap securely after adding
engine coolant. If the cooling system requires coolant
frequently, have it checked by an INFINITI
retailer.
CHANGING ENGINE COOLANT
Major cooling system repairs should be
performed by an INFINITI retailer. The
service procedures can be found in the
appropriate INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
.
To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
. Never remove the radiator cap when the
engine is hot. Serious burns could be
caused by high pressure fluid escaping
from the radiator.
. Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner as
soon as possible.
. Keep coolant out of reach of children and
pets.
Engine coolant must be disposed of
properly. Check your local regulations.
8-10Maintenance and do-it-yourself
SDI2043
CHECKING ENGINE COOLANT LEVEL
Check the coolant level in the reservoir
when the engine is cold. If the coolant
level is below MIN
*2, open the reservoir
tank cap and add coolant up to the MAX
*1
level. If the reservoir tank is empty, check
the coolant level in the radiator when the
engine is cold. If there is insufficient
coolant in the radiator, fill the radiator
with coolant up to the filler opening and
also add it to the reservoir tank up to the
MAX level
*1.
Tighten the cap securely after adding
engine coolant. If the cooling system requires coolant
frequently, have it checked by an INFINITI
retailer.
CHANGING ENGINE COOLANT
Major cooling system repairs should be
performed by an INFINITI retailer. The
service procedures can be found in the
appropriate INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
.
To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
. Never remove the radiator cap when the
engine is hot. Serious burns could be
caused by high pressure fluid escaping
from the radiator.
. Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner as
soon as possible.
. Keep coolant out of reach of children and
pets.
Engine coolant must be disposed of
properly. Check your local regulations.

858763.psp Nissan Infiniti OM OM2E HY51U0 Hybrid 1" gutter 12/21/2010 14\
:36:44 233 B
8-12Maintenance and do-it-yourself
JVM0038X
CHECKING INVERTER COOLANT LE-
VEL
Check the coolant level in the reservoir
when the engine and inverter are cold. If
the coolant level is below the MIN level
*B,
add coolant to the MAX level
*A.
If the inverter cooling system frequently
requires coolant, have it checked by an
INFINITI retailer.
CHANGING INVERTER COOLANT
An INFINITI ratailer can change the inverter
coolant. The service procedure can be
found in the INFINITI Service Manual.
Improper servicing can result in inverter
overheating.
WARNING
. To avoid the danger of being scalded,
never change the coolant when the
inverter is hot.
. Never remove the cap when the inverter
is hot. Serious burns could be caused by
high pressure fluid escaping from the
inverter coolant reservoir.
. Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner as
soon as possible.
. Keep coolant out of the reach of children
and pets.
Engine coolant must be disposed of prop-
erly. Check your local regulations.
SDI2045
VQ35HR engine
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface and apply the parking brake.
2. Run the engine until it reaches operat- ing temperature.
3. Turn off the engine. Wait more than 15
minutes for the oil to drain back into
the oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way.
5. Remove the dipstick again and check the oil level. It should be within the
range
*1. If the oil level is below*2,
ENGINE OIL
8-12Maintenance and do-it-yourself
JVM0038X
CHECKING INVERTER COOLANT LE-
VEL
Check the coolant level in the reservoir
when the engine and inverter are cold. If
the coolant level is below the MIN level
*B,
add coolant to the MAX level
*A.
If the inverter cooling system frequently
requires coolant, have it checked by an
INFINITI retailer.
CHANGING INVERTER COOLANT
An INFINITI ratailer can change the inverter
coolant. The service procedure can be
found in the INFINITI Service Manual.
Improper servicing can result in inverter
overheating.
WARNING
. To avoid the danger of being scalded,
never change the coolant when the
inverter is hot.
. Never remove the cap when the inverter
is hot. Serious burns could be caused by
high pressure fluid escaping from the
inverter coolant reservoir.
. Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner as
soon as possible.
. Keep coolant out of the reach of children
and pets.
Engine coolant must be disposed of prop-
erly. Check your local regulations.
SDI2045
VQ35HR engine
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface and apply the parking brake.
2. Run the engine until it reaches operat- ing temperature.
3. Turn off the engine. Wait more than 15
minutes for the oil to drain back into
the oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way.
5. Remove the dipstick again and check the oil level. It should be within the
range
*1. If the oil level is below*2,
ENGINE OIL

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9-4Technical and consumer information
corrosion inhibitors, such methanol
blends may cause fuel system damage
and/or vehicle performance problems.
At this time, sufficient data is not
available to ensure that all methanol
blends are suitable for use in INFINITI
vehicles.
If any undesirable driveability problems
such as engine stalling or hard hot starting
are experienced after using oxygenate-
blend fuels, immediately change to a
non-oxygenate fuel or a fuel with a low
blend of MTBE.
Take care not to spill gasoline during
refueling. Gasoline containing oxygenates
can cause paint damage.
E-85 fuel
E-85 fuel is a mixture of approximately
85% fuel ethanol and 15% unleaded
gasoline. E-85 can only be used in a
Flexible Fuel Vehicle (FFV). Do not use E-
85 fuel in your vehicle. U.S. government
regulations require fuel ethanol dispensing
pumps to be identified by a small, square,
orange and black label with the common
abbreviation or the appropriate percentage
for that region.
Aftermarket fuel additives
INFINITI does not recommend the use of
any aftermarket fuel additives (Example:
fuel injector cleaner, octane booster, intake
valve deposit removers, etc.) which are
sold commercially. Many of these additives
intended for gum, varnish or deposit
removal may contain active solvent or
similar ingredients that can be harmful to
the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended above can
cause persistent, heavy spark knock.
(Spark knock is a metallic rapping noise.)
If severe, this can lead to engine damage.
If you detect a persistent heavy spark
knock even when using gasoline of the
stated octane rating, or if you hear steady
spark knock while holding a steady speed
on level roads, have an INFINITI retailer
correct the condition. Failure to correct the
condition is misuse of the vehicle, for
which INFINITI is not responsible.
Incorrect ignition timing will result in
knocking, after-run or overheating. This in
turn may cause excessive fuel consumption
or damage to the engine. If any of the above symptoms are encountered, have
your vehicle checked at an INFINITI retailer
or other competent service facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.CAUTION
.
Your vehicle is not designed to run on E-
85 fuel. Using E-85 fuel in a vehicle not
specifically designed for E-85 fuel can
damage fuel system components and is
not covered by the INFINITI new vehicle
limited warranty.
. E-85 is a mixture of approximately 85%
fuel ethanol and 15% unleaded gasoline.
. U.S. government regulations require
ethanol dispensing pumps to be identi-
fied by a small, square, orange and black
label with the common abbreviation or
the appropriate percentage for that
region.
9-4Technical and consumer information
corrosion inhibitors, such methanol
blends may cause fuel system damage
and/or vehicle performance problems.
At this time, sufficient data is not
available to ensure that all methanol
blends are suitable for use in INFINITI
vehicles.
If any undesirable driveability problems
such as engine stalling or hard hot starting
are experienced after using oxygenate-
blend fuels, immediately change to a
non-oxygenate fuel or a fuel with a low
blend of MTBE.
Take care not to spill gasoline during
refueling. Gasoline containing oxygenates
can cause paint damage.
E-85 fuel
E-85 fuel is a mixture of approximately
85% fuel ethanol and 15% unleaded
gasoline. E-85 can only be used in a
Flexible Fuel Vehicle (FFV). Do not use E-
85 fuel in your vehicle. U.S. government
regulations require fuel ethanol dispensing
pumps to be identified by a small, square,
orange and black label with the common
abbreviation or the appropriate percentage
for that region.
Aftermarket fuel additives
INFINITI does not recommend the use of
any aftermarket fuel additives (Example:
fuel injector cleaner, octane booster, intake
valve deposit removers, etc.) which are
sold commercially. Many of these additives
intended for gum, varnish or deposit
removal may contain active solvent or
similar ingredients that can be harmful to
the fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended above can
cause persistent, heavy spark knock.
(Spark knock is a metallic rapping noise.)
If severe, this can lead to engine damage.
If you detect a persistent heavy spark
knock even when using gasoline of the
stated octane rating, or if you hear steady
spark knock while holding a steady speed
on level roads, have an INFINITI retailer
correct the condition. Failure to correct the
condition is misuse of the vehicle, for
which INFINITI is not responsible.
Incorrect ignition timing will result in
knocking, after-run or overheating. This in
turn may cause excessive fuel consumption
or damage to the engine. If any of the above symptoms are encountered, have
your vehicle checked at an INFINITI retailer
or other competent service facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.CAUTION
.
Your vehicle is not designed to run on E-
85 fuel. Using E-85 fuel in a vehicle not
specifically designed for E-85 fuel can
damage fuel system components and is
not covered by the INFINITI new vehicle
limited warranty.
. E-85 is a mixture of approximately 85%
fuel ethanol and 15% unleaded gasoline.
. U.S. government regulations require
ethanol dispensing pumps to be identi-
fied by a small, square, orange and black
label with the common abbreviation or
the appropriate percentage for that
region.