System operation
WARNING
Normally when controlling the distance to
a vehicle ahead, this system automatically
accelerates or decelerates your vehicle
according to the speed of the vehicle
ahead. Depress the accelerator to prop-
erly accelerate your vehicle when accel-
eration is required for a lane change. De-
press the brake pedal when deceleration
is required to maintain a safe distance to
the vehicle ahead due to its sudden brak-
ing or if a vehicle cuts in. Always stay alert
when using the ICC system.
The driver sets the desired vehicle speed based
on the road conditions. The ICC system main-
tains the set vehicle speed, similar to standard
cruise control, as long as no vehicle is detected in
the lane ahead.
The ICC system displays the set speed. The
CRUISE indicator light in the vehicle information
display comes on.
Vehicle detected ahead:
When a vehicle is detected in the lane ahead, the
ICC system decelerates the vehicle by control-
ling the throttle and applying the brakes to match
the speed of a slower vehicle ahead. The system then controls the vehicle speed based on the
speed of the vehicle ahead to maintain a driver
selected distance.
The stoplights of the vehicle come on and
the brake pedal depresses when braking is
performed by the ICC system.
CAUTION
Never place your foot under the brake
pedal, when the brake is operated by the
Intelligent Cruise Control system. You
may get your foot caught in the pedal.
When a vehicle ahead is detected, the vehicle
ahead detection indicator comes on. The ICC
system will also display the set speed and se-
lected distance.
Vehicle ahead not detected:
When a vehicle is no longer detected ahead, the
ICC system gradually accelerates your vehicle to
resume the previously set vehicle speed. The ICC
system then maintains the set speed.
When a vehicle is no longer detected the vehicle
ahead detection indicator turns off.
If a vehicle ahead appears during acceleration to
the set vehicle speed or any time the ICC system
is in operation, the system controls the distance
to the vehicle.
System set display without vehicle ahead
WSD0218
Starting and driving5-29
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane
When passing another vehicle,the set speed
indicator will flash when the vehicle speed ex-
ceeds the set speed. The vehicle detect indicator
will turn off when the area ahead of the vehicle is
open. When the pedal is released, the vehicle will
return to the previously set speed. The CRUISE
indicator light will appear on the vehicle informa-
tion display.
Although your vehicle may be at the set vehicle
speed based on ICC system control, depress the
accelerator pedal when it is necessary to accel-
erate your vehicle rapidly.
How to change the set vehicle speed
To cancel the preset speed, use any of these
methods:
● Push the CANCEL switch. The set vehicle
speed indicator will go out.
● Tap the brake pedal. The set vehicle speed
indicator will go out.
● Turn the ON/OFF switch off. Both the
ON/OFF switch indicator and set vehicle
speed indicator will go out.
To reset at a faster cruising speed, use one
of the following methods:
● Depress the accelerator pedal. When the
vehicle attains the desired speed, push and
release the COAST/SET switch.
● Push and hold the ACCEL/RES switch. The
set vehicle speed will increase by approxi-
mately 5 MPH (5 km/h for Canada) .
● Push, then quickly release the ACCEL/RES
switch. Each time you do this, the set speed
will increase by approximately 1 MPH (1
km/h for Canada) . To reset at a slower cruising speed,
use one
of the following methods:
● Lightly tap the brake pedal. When the ve-
hicle attains the desired speed, push the
COAST/SET switch and release it.
● Push and hold the COAST/SET switch. The
set vehicle speed will decrease by approxi-
mately 5 MPH (5 km/h for Canada) .
● Push, then quickly release the COAST/SET
switch. Each time you do this, the set speed
will decrease by approximately 1 MPH (1
km/h for Canada) .
To resume the preset speed, push and re-
lease the ACCEL/RES switch. The vehicle will
resume the last set cruising speed when the
vehicle speed is over 25 MPH (40 km/h) .
WSD0219
5-30Starting and driving
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane
Warning light and display
Condition A
The chime sounds and the Intelligent Cruise
Control system is canceled automatically in the
conditions described below. The CRUISE indica-
tor light will appear in the vehicle information
display. Part of the system display will come on or
blink, making it impossible to set.● When the VDC is turned off
● When the VDC operates
● When a tire slips ●
When strong light (sunlight, etc.) is directly
shining on the front of the vehicle
Action to take:
When the conditions listed above are no longer
present, turn the system off using the Intelligent
Cruise Control ON/OFF Switch. Turn the ICC
system back on to use the system.
Condition B
When the sensor window is dirty, making it im-
possible to detect a vehicle ahead, the ICC sys-
tem is automatically canceled.
The chime sounds and the system warning light
(Orange) will come on in the instrument panel
and the set distance indicators will blink in the
vehicle information display.
Action to take:
If the warning light comes on, park the vehicle in a
safe place, turn the engine off. Clean the sensor
window with a soft cloth and then perform the
settings again.
WSD0220WSD0221
Starting and driving5-33
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane
●Do not impact the areas around the sensor.
Do not touch or remove the screw located
on the sensor. Doing so could cause failure
or malfunction. If the sensor is deformed due
to an accident, contact an INFINITI dealer.
● Do not attach a sticker (including transpar-
ent material) or install an accessory near the
sensor. This could cause failure or malfunc-
tion.
CONVENTIONAL (FIXED SPEED)
CRUISE CONTROL MODE
This mode allows driving at a speed between 25
to 89 MPH (40 to 144 km/h) without keeping
your foot on the accelerator pedal.
WARNING
● In the conventional (fixed speed) cruise
control mode, a warning chime does
not sound to warn you if you are too
close to the vehicle ahead, as neither
the presence of the vehicle ahead nor
the vehicle-to-vehicle distance is
detected.
● Pay special attention to the distance
between your vehicle and the vehicle
ahead of you or a collision could occur. ●
Always confirm the setting in the Intel-
ligent Cruise Control system display.
● Do not use the conventional (fixed
speed) cruise control mode when driv-
ing under the following conditions:
– When it is not possible to keep the vehicle at a set speed.
– In heavy traffic or in traffic that varies in speed.
– On winding or hilly roads.
– On slippery roads (rain, snow, ice, etc.) .
– In very windy areas.
Doing so could cause a loss of vehicle
control and result in an accident.
Conventional (fixed speed) cruise
control mode display and switch
The display is located within the vehicle informa-
tion display.
1. Intelligent Cruise Control system display
2. ICC system warning light (Orange) The light comes on if there is a malfunction in
the ICC system and is illuminated in the
instrument panel.
3. CRUISE indicator light Indicates that the ON/OFF switch is ON and
appears in the vehicle information display.
WSD0209
Starting and driving5-35
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane
4. Cruise set switch indicator lightThe light comes on while the vehicle speed
is controlled by the conventional (fixed
speed) cruise control mode of the ICC sys-
tem and is in the vehicle information display.
5. ACCELERATE/RESUME switch: Resumes set speed or increases speed in-
crementally.
6. COAST/SET switch: Sets the desired cruise speed, reduces
speed incrementally.
7. CANCEL switch: Deactivates the system without erasing the
set speed.
8. ON/OFF switch: Master switch to activate the system
Operating conventional (fixed speed)
cruise control mode
To turn on the conventional (fixed speed)
cruise control mode, push and hold the
ON/OFF switch
1for longer than about 1.5
seconds.
When pushing the ON/OFF switch on, the Intel-
ligent Cruise Control system display and the
CRUISE indicator light in the vehicle information
display will illuminate. After you hold the ON/OFF
switch on for longer than about 1.5 seconds, the
Intelligent Cruise Control system display goes
out. The CRUISE indicator stays lit. You can now set your desired cruising speed. Pushing the
ON/OFF switch again will turn the system com-
pletely off.
When the ignition switch is turned off, the system
is also automatically turned off. To use the Intelli-
gent Cruise Control again, push the ON/OFF
switch (vehicle-to-vehicle distance control
mode) or push and hold it (conventional cruise
control mode) again to turn it on.
CAUTION
To avoid accidentally engaging cruise
control, make sure to turn the ON/OFF
switch off when not using the Intelligent
Cruise Control.
To set cruising speed, accelerate your vehicle
to the desired speed, push the COAST/SET
switch and release it. (The SET indicator light will
come on.) Take your foot off the accelerator
pedal. Your vehicle will maintain the set speed.
● To pass another vehicle, depress the ac-
celerator pedal. When you release the
pedal, the vehicle will return to the previously
set speed.
● The vehicle may not maintain the set speed
when going up or down steep hills. If this
happens, drive without the cruise control.
WSD0210
5-36Starting and driving
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane
The preset speed can be cancelled using
any of these methods:● Push the CANCEL button. The SET indica-
tor light will go out.
● Tap the brake pedal. The SET indicator light
will go out.
● Turn the ON/OFF switch off. Both the
CRUISE indicator and SET indicator lights
will go out.
To reset at a faster cruising speed, use one
of the following three methods:
● Depress the accelerator pedal. When the
vehicle attains the desired speed, push and
release the COAST/SET switch.
● Push and hold the ACCEL/RES set switch.
When the vehicle attains the speed you de-
sire, release the switch.
● Push, then quickly release the ACCEL/RES
switch. Each time you do this, the set speed
will increase by about 1 MPH (1.6 km/h) .
To reset at a slower cruising speed, use one
of the following three methods:
● Lightly tap the brake pedal. When the ve-
hicle attains the desired speed, push the
COAST/SET switch and release it. ●
Push and hold the COAST/SET switch. Re-
lease the switch when the vehicle slows
down to the desired speed.
● Push, then quickly release the COAST/SET
switch. Each time you do this, the set speed
will decrease by about 1 MPH (1.6 km/h) .
To resume the preset speed, push and re-
lease the ACCEL/RES switch. The vehicle will
resume the last set cruising speed when the
vehicle speed is over 25 MPH (40 km/h) .
Automatic cancellation
A chime sounds under the following conditions
and the control is automatically canceled.
● When the vehicle slows down more than 8
MPH (13 km/h) below the set speed.
● When the vehicle speed falls below approxi-
mately 20 MPH (32 km/h) .
● When the selector lever is shifted to a posi-
tion other than D (Drive) .
● When the parking brake is applied.
● When the VDC operates (except ABS,
which is functional with ICC system opera-
tion) .
Warning light
When the system is not operating properly, the
chime sounds and the orange system warning
light will illuminate in the instrument panel.
Action to take:
If the warning light comes on, park the vehicle in a
safe place. Turn the engine off restart the engine,
resume driving and then perform the setting again.
If it is not possible to set 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 dealer.
WSD0222
Starting and driving5-37
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane
BRAKE ASSIST
When the force applied to the brake pedal ex-
ceeds a certain level, the Brake Assist is acti-
vated, generating greater braking force than a
conventional brake booster even with light pedal
force.
WARNING
The Brake Assist is only an aid to assist
braking operation and is not a collision
warning or avoidance device. It is the driv-
er’s responsibility to stay alert, drive
safely and be in control of the vehicle at
all times.
PREVIEW FUNCTION
When the Preview Function identifies the need to
apply emergency braking by sensing a vehicle
ahead in the same lane and the distance and
relative speed from it, it applies the brake pre-
pressure before the driver depresses the brake
pedal and helps improve brake response by re-
ducing pedal free play.●
This system will not operate when the ve-
hicle is moving at approximately 20 MPH (32
km/h) or less.
● The pre-pressure function ceases when the
following conditions are met:
a. When the driver depresses the accelerator pedal or the brake pedal.
b. If the driver does not operate the accelerator or brake pedal within approximately 1 second.
●The sensor will not detect:
a. Pedestrians or objects in the roadway
b. Oncoming vehicles in the same lane
c. Motorcycles or scooters traveling offset in the travel lane as illustrated
LSD0124
BRAKE ASSIST (WITH PREVIEW
FUNCTION) (for Intelligent Cruise
Control System equipped models)
5-38Starting and driving
REVIEW COPY—2010 Infiniti QX56 (iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—debbie
If the indicator stays on, it may indicate that
the Preview Function is malfunctioning
(the brake is operative) . Although the Ve-
hicle is still driveable under normal condi-
tions, have the vehicle checked at an
INFINITI dealer.
Sensor maintenance
The sensor for the Preview Function, is common
with Intelligent Cruise Control and is located
below the front bumper.
To keep the Preview Function operating properly,
be sure to observe the following:● Always keep the sensor clean. Wipe with a
soft cloth carefully so as not to damage
them.
● Do not impact the areas around the sensor.
Do not touch or disassemble the screw lo-
cated on the sensor. Doing so could cause
failure or malfunction. If the sensor installa-
tion part is deformed due to an accident,
contact an INFINITI dealer.
● Do not attach a sticker (including transpar-
ent material) or install an accessory near the
sensor. This could cause failure or malfunc-
tion.
CAUTION
During the first 1,200 miles (2,000 km) ,
follow these recommendations to obtain
maximum engine performance and en-
sure the future reliability and economy of
your new vehicle. Failure to follow these
recommendations may result in short-
ened engine life and reduced engine
performance.
● Avoid driving for long periods at constant
speed, either fast or slow, and do not run the
engine over 4,000 rpm.
● Do not accelerate at full throttle in any gear.
● Avoid quick starts.
● Avoid hard braking as much as possible.
● Do not tow a trailer for the first 500 miles
(800 km) . Your engine, axle or other parts
could be damaged. ●
Accelerate slowly and smoothly. Maintain
cruising speeds with a constant accelerator
position.
● Drive at moderate speeds on the highway.
Driving at high speed lowers fuel economy.
● Avoid unnecessary stopping and braking.
Maintain a safe distance behind other ve-
hicles.
● Use a proper gear range which suits road
conditions. On level roads, shift into high
gear as soon as possible.
● Avoid unnecessary engine idling.
● Keep your engine tuned up.
● Follow the recommended periodic mainte-
nance schedule.
● Keep the tires inflated to the correct pres-
sure. Low tire pressure increases tire wear
and lowers fuel economy.
● Keep the front wheels in correct alignment.
Improper alignment increases tire wear and
lowers fuel economy.
● Air conditioner operation lowers fuel
economy. Use the air conditioner only when
necessary.
BREAK-IN SCHEDULE INCREASING FUEL ECONOMY
5-40Starting and driving
REVIEW COPY—2010 Infiniti QX56(iwz)
Owners Manual (owners)—USA_English (nna)
02/12/09—diane