cruise control INFINITI QX 2011 User Guide

Distance Control Assist (DCA) system
(if so equipped).................................. 5-62
Precautions on distance control assist
system ....................................... 5-63
Distance control assist operation ...............5-64
Forward Collision Warning (FCW) system
(if so equipped) .................................. 5-75
Precautions on FCW system ....................5-76
Intelligent brake assist (IBA) system
(if so equipped) .................................. 5-80
Precautions on IBA system .....................5-80
Break-in schedule ................................ 5-83
Increasing fuel economy .......................... 5-83
INFINITI all-mode 4wd (if so equipped)............5-84
INFINITI all-mode 4wd system................. 5-84
4wd shift switch .............................. 5-88
4wd shift indicator ............................ 5-89
4wd warning light ............................. 5-89
Hill start assist system ........................... 5-91
Parking/parking on hills .......................... 5-92
Tow mode ....................................... 5-93Snow mode
...................................... 5-93
Power steering ................................... 5-94
Brake system .................................... 5-94
Braking precautions ........................... 5-94
Parking brake break-in ......................... 5-94
Brake assist ..................................... 5-95
Brake assist .................................. 5-95
Preview function (Intelligent Cruise Control
system equipped models) ......................5-95
Anti-lock Braking System (ABS) .................5-97
Vehicle Dynamic Control (VDC) system .............5-98
Vehicle Dynamic Control (VDC) OFF switch ......5-100
Cold weather driving ............................. 5-101
Freeing a frozen door lock .....................5-101
Antifreeze .................................... 5-101
Battery ....................................... 5-101
Draining

of coolant water ...................... 5-101
Tire equipment ................................ 5-101
Special winter equipment ......................5-101
Driving on snow or ice ......................... 5-101
Engine block heater (if so equipped) ...........5-102

How to enable/disable the LDP system using
the settings menu :
Perform the following steps to enable or disable
the LDP system.
1. Push the SETTING1button and highlight
the “Driver Assistance” key on the display
using the INFINITI controller. Then push
the ENTER
2button.
2. Highlight the “Dynamic Assistance Set- tings” key, and push the ENTER
2but-
ton.
3. Highlight the “Lane Departure Preven-tion” key, select ON (enabled) or OFF
(disabled) and push the ENTER
2button.
For the DCA system, see “DISTANCE CONTROL
ASSIST (DCA) SYSTEM” later in this section.
Automatic deactivation
Condition A :
The warning and assist functions of the LDP
system are not designed to work under the
following conditions:
●When you operate the lane change signal
and change the traveling lanes in the direc- tion of the signal. (The LDP system will be
deactivated for approximately 2 seconds af-
ter the lane change signal is turned off.)
● When the vehicle speed lowers to less than
approximately 45 MPH (70 km/h).
After the above conditions have finished and the
necessary operating conditions are satisfied, the
warning and assist functions will resume.
Condition B :
The assist function of the LDP system is not
designed to work under the following condi-
tions (warning is still functional):
● When the brake pedal is depressed.
● When the steering wheel is turned as far as
necessary for the vehicle to change lanes.
● When the accelerator pedal is depressed
while the brake control assist is provided.
● When the Intelligent Cruise Control (ICC)
approach warning occurs.
● When the hazard warning flashers are oper-
ated.
● When driving on a curve at high speed.
After the above conditions have finished and
the necessary operating conditions are satis-
fied, the LDP brake control assist function will
resume.
SSD1103
Starting and driving5-27

SYSTEM MAINTENANCE
The two radar sensor units1for the BSW
system is located near the rear bumper. Always
keep the area near the radar sensors clean. Do
not attach stickers (including transparent mate-
rial), install accessories or apply additional
paint near the radar sensors. Do not strike or
damage the area around the radar sensors.
Consult an INFINITI retailer if the area around
the radar sensors is damaged due to a collision.
Radio frequency statement
This device complies with part 15 of the FCC
Rules and RSS-310 of Industry Canada.
Operation is subject to the following two con-
ditions:
1. This device may not cause harmful inter- ference.
2. This device must accept any interference received, including interference that may
cause undesired operation.
Frequency of operation: 24.05GHz — 24.25GHz
Field Strength: Not greater than 2.5V/m peak
(0.25V/m average) at a distance of 3 m
The manufacturer is not responsible for any
radio or TV interference caused by unauthorized
modifications to this equipment. Such modifi-
cations could void the user’s authority to oper-
ate the equipment.
PRECAUTIONS ON CRUISE CONTROL
●If the cruise control system malfunctions, it
will cancel automatically. The CRUISE indica-
tor light on the meter panel will then blink to
warn the driver.
● If the engine coolant temperature becomes
excessively high, the cruise control system
will be canceled automatically.
● If the CRUISE indicator light blinks, turn the
cruise control main switch off and have the
system checked by your INFINITI retailer.
● The CRUISE indicator light may sometimes
blink when the cruise control main switch is
turned ON while pushing the RESUME/
ACCELERATE, SET/COAST or CANCEL switch.
To properly set the cruise control system,
perform the steps below in the order indi-
cated.
SSD1085
CRUISE CONTROL
Starting and driving5-37

WARNING
Do not use the cruise control when driving un-
der 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.
1. RESUME/ACCELERATE switch
2. SET/COAST switch
3. CANCEL switch
4. Cruise control MAIN switch
CRUISE CONTROL OPERATIONS
The cruise control allows driving at a speed
between 25 to 90 MPH (40 to 144 km/h) without
keeping your foot on the accelerator pedal.
To turn on the cruise control, push the MAIN
switch on. The CRUISE indicator will come on. To set cruising speed,
accelerate your vehicle to
the desired speed, push the SET/COAST switch
and release it. Take your foot off the accelerator
pedal. Your vehicle will maintain the set speed.
● To pass another vehicle, depress the accel-
erator pedal. When you release the pedal,
the vehicle will return to the previously set
speed.
● The vehicle may not maintain the set speed
on winding or hilly roads. If this happens,
drive without the cruise control.
To cancel the preset speed, follow any of these
methods:
a) Push the CANCEL switch.
b) Tap the brake pedal.
c) Move the selector lever to the N (Neutral) position.
d) Turn the MAIN switch off. The CRUISE indicator light will turn off.
●If you depress the brake pedal while pushing
the RESUME/ACCELERATE or SET/COAST
switch and reset at the cruising speed, the
cruise control will disengage. Turn the MAIN
switch off once and then turn it on again.
SSD0694
5-38Starting and driving

●The cruise control will automatically cancel if
the vehicle slows more than 7 MPH (12 km/h)
below the set speed.
● If you move the selector lever to N (Neutral)
position, the cruise control will be canceled.
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 SET/COAST switch.
● Push and hold the RESUME/ACCELERATE
switch. When the vehicle attains the speed
you desire, release the switch.
● Push, then quickly release the
RESUME/ACCELERATE 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 methods:
● Lightly tap the brake pedal. When the ve-
hicle attains the desired speed, push the
SET/COAST switch and release it.
● Push and hold the SET/COAST switch. Re-
lease the switch when the vehicle slows
down to the desired speed.
● Push, then quickly release the SET/COAST
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 release
the RESUME/ACCELERATE switch. The vehicle
will resume the last set cruising speed when the
vehicle speed is over 25 MPH (40 km/h). The Intelligent Cruise Control (ICC) system au-
tomatically maintains a selected distance from
the vehicle traveling in front of you according to
that vehicle’s speed (up to the set speed), or at
the set speed when the road ahead is clear.
The ICC function can be set to one of two cruise
control modes:
●
Vehicle-to-vehicle distance control mode:
For maintaining a selected distance between
your vehicle and the vehicle in front of you
up to the preset speed.
● Conventional (fixed speed) cruise control
mode:
For cruising at a preset speed.
WARNING
● Always drive carefully and attentively when
using either cruise control mode. Read and
understand the Owner’s Manual thoroughly
before using the ICC system. To avoid seri-
ous injury or death, do not rely on the system
to prevent accidents or to control the vehi-
cle’s speed in emergency situations. Do not
use the ICC system except in appropriate
road and traffic conditions.
INTELLIGENT CRUISE CONTROL (ICC)
SYSTEM (if so equipped)
Starting and driving5-39

●In the conventional (fixed speed) cruise con-
trol mode, a warning chime will not sound to
warn you if you are too close to the vehicle
ahead. Pay special attention to the distance
between your vehicle and the vehicle ahead
of you or a collision could occur.
1. Vehicle-to-vehicle distance control mode
2. Conventional (fixed speed) cruise control
mode
Push the MAIN switchAto choose the cruise
control mode between the vehicle-to-vehicle
distance control mode
1and the conventional
(fixed speed) cruise control mode
2.
To choose the vehicle-to-vehicle distance con-
trol mode
1, quickly push and release the
MAIN switch
A. To choose the conventional
(fixed speed) cruise control mode
2, push and
hold the MAIN switch
Afor longer than ap-
proximately 1.5 seconds. Once a control mode is activated, it cannot be
changed to the other cruise control mode. To
change the mode, push the MAIN switch once to
turn the system off. Then push the MAIN switch
again to turn the system back on and select the
desired cruise control mode.
Always confirm the setting in the ICC system
display.
For the vehicle-to-vehicle distance control
mode, see the following description. For the
conventional (fixed speed) cruise control mode,
see “CONVENTIONAL (FIXED SPEED) CRUISE
CONTROL MODE” later in this section.
SSD1051
5-40Starting and driving

SELECTING VEHICLE-TO-VEHICLE
DISTANCE CONTROL MODE
To choose the vehicle-to-vehicle distance con-
trol mode
1, quickly push and release the
MAIN switch
A.
VEHICLE-TO-VEHICLE DISTANCE
CONTROL MODE
In the vehicle-to-vehicle distance control mode,
the Intelligent Cruise Control (ICC) system auto-
matically maintains a selected distance from
the vehicle traveling in front of you according to
that vehicle’s speed (up to the set speed), or at
the set speed when the road ahead is clear.
With ICC, the driver can maintain the same
speed as other vehicles without the constant
need to adjust the set speed as you would with
a normal cruise control system.
PRECAUTIONS ON VEHICLE-TO-
VEHICLE DISTANCE CONTROL MODE
The system is intended to enhance the opera-
tion of the vehicle when following a vehicle
traveling in the same lane and direction.
If the distance sensor
Adetects a slower
moving vehicle ahead, the system will reduce
the vehicle speed so that your vehicle follows
the vehicle in front at the selected distance.
The system automatically controls the throttle
and applies the brakes (up to 25% of vehicle
braking power) if necessary.
The detection range of the sensor is approxi-
mately 390 ft (120 m) ahead.
WARNING
● This system is only an aid to assist the driver
and is not a collision warning or avoidance
device. It is the driver’s responsibility to stay
alert, drive safely and be in control of the
vehicle at all times.
● The system is primarily intended for use on
straight, dry, open roads with light traffic. It
is not advisable to use the system in city
traffic or congested areas.
● This system will not adapt automatically to
road conditions. This system should be used
in evenly flowing traffic. Do not use the sys-
tem on roads with sharp curves, or on icy
roads, in heavy rain or in fog.
The distance sensor will not detect the follow-
ing objects:
● Stationary and slow moving vehicles
● Pedestrians or objects in the roadway
● Oncoming vehicles in the same lane
● Motorcycles traveling offset in the travel
lane
SSD1047
Starting and driving5-41

WARNING
●As there is a performance limit to the dis-
tance control function, never rely solely on
the Intelligent Cruise Control (ICC) system.
This system does not correct careless, inat-
tentive or absent-minded driving, or over-
come poor visibility in rain, fog, or other bad
weather. Decelerate the vehicle speed by de-
pressing the brake pedal, depending on the
distance to the vehicle ahead and the sur-
rounding circumstances in order to maintain
a safe distance between vehicles.
● If the vehicle ahead comes to a stop, the
vehicle decelerates to a standstill within the
limitations of the system. The system will
cancel once it judges that the vehicle has
come to a standstill and sound a warning
chime. To prevent the vehicle from moving,
the driver must depress the brake pedal.
● The system may not function properly under
the following conditions. To avoid accidents,
never use the ICC system under the following
conditions:
– On roads where the traffic is heavy or there are sharp curves
– On slippery road surfaces such as on ice or snow, etc. – On off-road surfaces such as on sand or
rock, etc.
– During bad weather (rain, fog, snow, etc.)
– When the windshield wipers are operat- ing at high speed. The system may cancel
when the wipers are set to the AUTO
position.
– When strong light (for example, at sun- rise or sunset) is directly shining on the
front of the vehicle
– When rain, snow or dirt adhere to the sys- tem sensor
– On steep downhill roads (the vehicle may go beyond the set vehicle speed and fre-
quent braking may result in overheating
the brakes)
– On repeated uphill and downhill roads
– When traffic conditions make it difficult to keep a proper distance between vehicles
because of frequent acceleration or
deceleration
– When towing a trailer or other vehicle ●
In some road or traffic conditions, a vehicle
or object can unexpectedly come into the
sensor detection zone and cause automatic
braking. You may need to control the dis-
tance from other vehicles using the accelera-
tor pedal. Always stay alert and avoid using
the ICC system when it is not recommended
in this section.
5-42Starting and driving

VEHICLE-TO-VEHICLE DISTANCE
CONTROL MODE OPERATION
Always pay attention to the operation of the
vehicle and be ready to manually control the
proper following distance. The vehicle-to-
vehicle distance control mode of the Intelligent
Cruise Control (ICC) system may not be able to
maintain the selected distance between ve-
hicles (following distance) or selected vehicle
speed under some circumstances.
The vehicle-to-vehicle distance control mode
uses a sensor
Alocated on the front of the
vehicle to detect vehicles traveling ahead. The
sensor generally detects the signals returned
from the reflectors on a vehicle ahead. There- fore, if the sensor cannot detect the reflector on
the vehicle ahead, the ICC system may not
maintain the selected distance.
The following are some conditions in which the
sensor cannot detect the signals:
●
When the reflector of the vehicle ahead is
positioned high on the vehicle (trailer, etc.)
● When the reflector on the vehicle ahead is
missing, damaged or covered
● When the reflector of the vehicle ahead is
covered with dirt, snow and road spray
● When the snow or road spray from traveling
vehicles reduces the sensor’s visibility
● When dense exhaust or other smoke (black
smoke) from vehicles reduces the sensor’s
visibility
● When excessively heavy baggage is loaded
in the rear seat or the trunk of your vehicle
● When your vehicle is towing a trailer, etc.
The ICC system is designed to automatically
check the sensor’s operation within the limita-
tion of the system. When the sensor is covered
with dirt or obstructs, the system will automati-
cally be canceled. If the sensor is covered with
ice, a transparent or translucent vinyl bag, etc.,
the ICC system may not detect them. In these
instances, the vehicle-to-vehicle distance con- trol mode may not cancel and may not be able
to maintain the selected following distance
from the vehicle ahead. Be sure to check and
clean the sensor regularly.
The vehicle-to-vehicle distance control mode is
designed to maintain a selected distance and
reduce the speed to match the slower vehicle
ahead; the system will decelerate the vehicle as
necessary, and if the vehicle ahead comes to a
stop, the vehicle decelerates to a standstill.
However, the ICC system can only apply up to
25% of the vehicles total braking power. This
system should only be used when traffic condi-
tions allow vehicle speeds to remain fairly
constant or when vehicle speeds change gradu-
ally. If a vehicle moves into the traveling lane
ahead or if a vehicle traveling ahead rapidly
decelerates, the distance between vehicles may
become closer because the ICC system cannot
decelerate the vehicle quickly enough. If this
occurs, the ICC system will sound a warning
chime and blink the system display to notify the
driver to take necessary action.
The system will cancel and a warning chime will
sound if the speed falls below approximately 15
MPH (24 km/h) and a vehicle is not detected
ahead. The system will also disengage when
the vehicle goes above the maximum set speed.
See “Approach warning” later in this section.
SSD1047
Starting and driving5-43

Intelligent Cruise Control (ICC) system
switch
The system is operated by a MAIN switch and
four control switches, all mounted on the steer-
ing wheel.
1. RESUME/ACCELERATE switch:
Resumes set speed or increases speed incre-
mentally.
2. SET/COAST switch:
Sets desired cruise speed, reduces speed
incrementally.
3. CANCEL switch:
Deactivates the system without erasing the
set speed.
4. DISTANCE switch:
Changes the vehicle’s following distance:
● Long
● Middle
● Short
5. MAIN switch:
Master switch to activate the system
Intelligent Cruise Control (ICC) system
display and indicators
The display is located between the speedom-
eter and tachometer.
1. MAIN switch indicator:
Indicates that the MAIN switch is ON.
2. Vehicle ahead detection indicator:
Indicates whether it detects a vehicle in
front of you.
3. Set distance indicator:
Displays the selected distance between ve-
hicles set with the DISTANCE switch.
SSD0964SSD1104
Starting and driving5-47