
●The temperature of the passenger compart-
ment will be maintained automatically. Air
flow distribution, fan speed and A/C on/off
are also controlled automatically.
● A visible mist may be seen coming from the
vents in hot, humid conditions as the air is
cooled rapidly. This does not indicate a mal-
function.
Dehumidified defrosting or defogging
1. Push the defroster control buttonto
turn the system on. The display will show the
defrost icon.
2. Turn the temperature dial to the left or right to set the desired temperature.
● To quickly remove ice from the outside of the
windows, press and hold the
+ but-
ton to set the fan speed to maximum.
● As soon as possible after the windshield is
clean, push the AUTO button to return to the
auto mode. ●
When the DEF control
is activated,
the air conditioner will automatically be
turned on at outside temperatures above
36°F (2°C) . If in defrost mode for more than
one minute, the air conditioning system will
continue to operate until the fan control is
turned OFF, the vehicle is shut off, or the A/C
button is used to turn off the compressor
even if an air flow MODE button other
than
is selected. This dehumidifies
the air which helps defog the windshield.
The air recirculation mode automatically
turns off, allowing outside air to be drawn
into the passenger compartment to further
improve the defogging performance.
MANUAL OPERATION
Fan speed control buttons
Press the fan speed control buttons+/–
to manually control the fan speed.
Press OFF to turn the system off.
Push the AUTO button to return to automatic
control of the fan speed.
Air recirculation
Themode automatically turns off, allowing
outside air to be drawn into the passenger com-
partment to prevent fogging in defrost, floor or
def/floor modes.
Push the air recirculation button
to recir-
culate interior air inside the vehicle. Push the
AUTO button to return to automatic mode.
Air flow control
Pushing the MODE button manually controls air
flow and selects the air outlet:
— Air flows from center and side
vents.
— Air flows from center and sidevents and foot outlets.
— Air flows mainly from foot outlets.
— Air flows from defroster and footoutlets.
— Air flows from defroster outlets.
To turn system off
Press the OFF button.
Monitor, climate, audio, phone and voice recognition systems4-23
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane

1. Rear fan speed control dial
2. Rear airflow mode buttons
3. Rear temperature control dialCONTROLS
Fan control dial
The fan control dial turns the rear vent fan on and
off and controls fan speed.
Airflow mode buttons
The airflow mode buttons select where the air
flow is directed from.
Temperature control dial
The temperature control dial allows rear passen-
gers to adjust the temperature of the outlet air.The air conditioner system in your INFINITI ve-
hicle is charged with a refrigerant designed with
the environment in mind.
This refrigerant does not harm the earth’s
ozone layer.
Special charging equipment and lubricant is re-
quired when servicing your INFINITI air condi-
tioner. Using improper refrigerants or lubricants
will cause severe damage to your air conditioner
system. See “Air conditioner system refrigerant
and oil recommendations” in the “Technical and
consumer information” section of this manual.
An INFINITI dealer is able to service your “envi-
ronmentally friendly” air conditioning system.
WARNING
The air conditioner system contains re-
frigerant under high pressure. To avoid
personal injury, any air conditioner ser-
vice should be done only by an experi-
enced technician with proper equipment.
LHA0861WHA1129
SERVICING AIR CONDITIONER
Monitor, climate, audio, phone and voice recognition systems4-25
REVIEW COPY—2010 Infiniti QX56
(iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane

1. Apply the parking brake.
2. Move the shift selector to P (Park) or N(Neutral) . P (Park) is recommended.
The shift selector cannot be moved out
of P (Park) and into any of the other
gear positions if the ignition key is
turned to the OFF position or if the key
is removed from the ignition switch.
The starter is designed not to operate if
the shift selector is in any of the driving
positions.
3. Crank the engine with your foot off the
accelerator pedal by turning the ignition
key to START. Release the key when the
engine starts. If the engine starts, but fails to
run, repeat the above procedure.
● If the engine is very hard to start in ex-
tremely cold weather or when restarting,
depress the accelerator pedal a little (ap-
proximately 1/3 to the floor) and hold it
and then crank the engine. Release the
key and the accelerator pedal when the
engine starts.
● If the engine is very hard to start because
it is flooded, depress the accelerator
pedal all the way to the floor and hold it.
Crank the engine for 5 to 6 seconds. After
cranking the engine, release the accel- erator pedal. Crank the engine
with your
foot off the accelerator pedal by turn-
ing the ignition key to START. Release the
key when the engine starts. If the engine
starts, but fails to run, repeat the above
procedure.
CAUTION
Do not operate the starter for more than
15 seconds at a time. If the engine does
not start, turn the key off and wait 10
seconds before cranking again, otherwise
the starter could be damaged.
4. Allow the engine to idle for at least 30 sec- onds after starting. Do not race the engine
while warming it up. Drive at moderate
speed for a short distance first, especially in
cold weather.
In cold weather, keep the engine running for
a minimum of 2–3 minutes before shutting it
off. Starting and stopping the engine over a
short period of time may make the vehicle
more difficult to start.
ENGINE PROTECTION MODE
The engine has an engine protection mode to
reduce the chance of damage if the coolant tem-
perature becomes too high (for example, when
climbing steep grades in high temperature with
heavy loads, such as when towing a trailer) .
When the engine temperature reaches a certain
level: ● The engine coolant temperature gauge will
move toward the H position.
● Engine power may be reduced.
● The air conditioning cooling function may be
automatically turned OFF for a short time
(the blower will continue to operate) .
Engine power and, under some conditions, ve-
hicle speed will decrease. Vehicle speed can be
controlled with the accelerator pedal, but the
vehicle may not accelerate at the desired speed.
The transmission will downshift or upshift as it
reaches prescribed shift points. You can also
shift manually.
As driving conditions change and engine coolant
temperature is reduced, vehicle speed can be
increased using the accelerator pedal, and air
conditioning cooling function will automatically
be turned back ON.
STARTING THE ENGINE DRIVING THE VEHICLE
5-12Starting and driving
REVIEW COPY—2010 Infiniti QX56(iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane

If:1. The engine coolant temperature is not re- duced.
2. The air conditioning cooling function does not turn back ON.
3. The engine oil pressure warning/engine coolant temperature high indicator
il-
luminates, this may indicate a malfunction.
Move the vehicle off the road in a safe area
and allow the engine to cool. If after check-
ing the oil and coolant, the
remains
on, do not continue to drive and call an
INFINITI dealer.
The malfunction indicator lamp may also come
ON. You do not need to have your vehicle towed,
unless it remains on, but have it inspected soon
by an INFINITI dealer. See “Warning/Indicator
Lights and Audible reminders” in the “Instruments
and Controls” section of this manual.
WARNING
Overheating can result in reduced engine
power and vehicle speed. The reduced
speed may be lower than other traffic,
which could increase the chance of a col-
lision. Be especially careful when driving.
If the vehicle cannot maintain a safe driv-
ing speed, pull to the side of the road in a
safe area. Allow the engine to cool and
return to normal operation. See “If your
vehicle overheats” in the “In case of emer-
gency” section of this manual.
CAUTION
Running the engine with the engine oil
pressure warning light on could cause se-
rious damage to the engine almost imme-
diately. Such damage is not covered by
warranty. Turn off the engine as soon as it
is safe to do so.
AUTOMATIC TRANSMISSION
WARNING
● Do not depress the accelerator pedal
while shifting from P (Park) or N (Neu-
tral) to R (Reverse) , or L (Low) . Always
depress the brake pedal until shifting is
completed. Failure to do so could cause
you to lose control and have an
accident.
● Cold engine idle speed is high, so use
caution when shifting into a forward or
reverse gear before the engine has
warmed up.
● Never shift to P (Park) or R (Reverse)
while the vehicle is moving. This could
cause an accident.
CAUTION
● When stopping the vehicle on an uphill
grade, do not hold the vehicle by de-
pressing the accelerator pedal. The foot
brake should be used for this purpose.
● Do not downshift abruptly on slippery
roads. This may cause a loss of control.
The automatic transmission in your vehicle is
electronically controlled to produce maximum
power and smooth operation.
Starting and driving5-13
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane

The following are approximate capacities. The actual refill capacities may be slightly different. When refilling, follow the procedure
described in the “Maintenance and do-it-yourself” section to determine the proper refill capacity.
Capacity (Approximate)Recommended Fluids and Lubricants
US measure Imp measure Liter
Fuel 28 gal23-1/4 gal 105.8 Unleaded gasoline with an octane rating of at least 87 AKI (RON 91)*1
Engine oil *7 Drain and RefillWith oil filter change 6-7/8 qt 5-3/4 qt 6.5 Engine oil with API Certification Mark *2
Viscosity SAE 5W-30 *2
Without oil filter change 6-1/2 qt 5-1/2 qt 6.2
Cooling system With reservoir 3-3/4 gal 3-1/8 gal 14.4 50% Genuine NISSAN Long Life Antifreeze/Coolant or equivalent
50% Demineralized or distilled water
Automatic transmission fluid Refill to the proper level according to the instructions in
the “Maintenance and do-it-yourself” section. Genuine NISSAN Matic S ATF *3
Power steering fluid (PSF) Genuine NISSAN PSF or equivalent.*4
Brake fluid Genuine NISSAN Super Heavy Duty Brake Fluid *5 or equivalent DOT 3
Multi-purpose grease ———NLGI No. 2 (Lithium Soap base)
Air conditioning system refrigerant — ——HFC-134a (R-134a) *6
Air conditioning system oil ———NISSAN A/C System Oil Type S or equivalent *6
Transfer fluid 3-1/8 qt 2-5/8 qt 3.0 Genuine NISSAN Matic D ATF (Continental U.S. and Alaska) or Canada
NISSAN Automatic Transmission Fluid or equivalent (if available)
Front differential gear oil 3-3/8 pt 2-7/8 pt 1.6 Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 OR API GL-5
Viscosity SAE 80W-90 *8
Rear differential gear oil 3-3/4 pt 3-1/8 pt 1.75 API GL-5 Synthetic 75W-90 gear oil or equivalent *9
Windshield washer fluid (shared between
front and rear wipers) 1-1/4 gal 1 gal
4.5Genuine NISSAN Windshield Washer Concentrate Cleaner & Antifreeze or
equivalent
*1: For further details, see “Fuel recommendation.”
*2: For further details, see “Engine oil and oil filter recommendations.”
*3: If Genuine NISSAN Matic S ATF is not available, Genuine NISSAN Matic J ATF may also be used. Using automatic transmission fluid other than Genuine NISSAN Matic S ATF or Matic J ATF will cause deterioration in driveability and automatic transmission durability, and may damage the automatic transmission, which is not covered by the INFINITI new ve-
hicle limited warranty.
*4: DEXRON™ VI type ATF or Canada NISSAN Automatic Transmission Fluid may also be used.
*5: Available in mainland USA through your INFINITI dealer.
*6: For further details, see “Air conditioner specification label.”
*7: For further details, see “Changing engine oil.”
*8: For hot climates, viscosity SAE 90 is suitable for ambient temperatures above 0° C (32° F) .
*9: See your INFINITI dealer for service.
CAPACITIES AND RECOMMENDED
FUEL/LUBRICANTS
9-2Technical and consumer information
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—debbie