2011 INFINITI QX brake sensor

Automatic transmission
position indicator light
When the ignition switch is pushed to the ON
position, the indicator shows the automatic
selector position.
In the manual shift mode, when the transmis-
sion does not shift to the selected gear due to a
transmission protection mode, the AT position
indicator light will blink and a chime will sound.
See “AUTOMATIC TRANSMISSION” in the “5.
Starting and driving” section for further details.
Check suspension indicator
light
When the ignition switch is placed in the “ON”
position, the light comes on for 2 seconds.
Cruise indicator light (if so
equipped)
Cruise main switch indicator :
This light illuminates when the cruise control
main switch is pushed. The light turns off when
the main switch is pushed again. When the
cruise main switch indicator light illuminates,
the cruise control system is operational. (See
“CRUISE CONTROL” in the “5. Starting and
driving” section.)Cruise malfunction :
If the cruise indicator light blinks while the
engine is running, it may indicate the cruise
control system is not functioning properly. Have
the system checked by an INFINITI retailer. (See
“CRUISE CONTROL” in the “5. Starting and
driving” section.)
Front passenger air bag
status light
The front passenger air bag status light ()
located on the instrument panel will be lit and
the passenger front air bag will be OFF depend-
ing on how the front passenger seat is being
used.
For front passenger air bag status light opera-
tion, see “INFINITI ADVANCED AIR BAG SYSTEM
(front seats)” in the “1. Safety — Seats, seat
belts and supplemental restraint system” sec-
tion of this manual.
High beam indicator light
This light comes on when the headlight high
beam is on and goes out when the low beam is
selected.
Intelligent Brake Assist (IBA)
off indicator light (if so
equipped)
The light illuminates when the Intelligent Brake
Assist (IBA) off switch is pushed to OFF. This
indicates that the Intelligent Brake Assist (IBA)
system is not operating.
When the IBA off indicator light illuminates
while the system is turned on (without the
warning chime sound), this light indicates that
the system control is temporarily unavailable.
When the IBA off indicator light illuminates with
the warning chime sound while the IBA system
is turned on, this light indicates that the system
may not be functioning properly. Park the ve-
hicle in a safe place. Check to see if the laser
sensor is clean. Turn the engine off, then restart
the engine.
If the IBA off indicator light illuminates after
following the procedures above, it may indicate
that the system is malfunctioning. Although the
vehicle is still driveable under normal condi-
tions, have the vehicle checked at an INFINITI
retailer. (See “INTELLIGENT BRAKE ASSIST (IBA)
SYSTEM” in the “5. Starting and driving” sec-
tion.)
2-18Instruments and controls

●Replacing tires with those not originally
specified by INFINITI could affect the proper
operation of the TPMS.
● Do not inject any tire liquid or aerosol tire
sealant into the tires, as this may cause a
malfunction of the tire pressure sensors.
CAUTION
● The TPMS may not function properly when
the wheels are equipped with tire chains or
the wheels are buried in snow.
● Do not place metalized film or any metal
parts (antenna, etc.) on the windows. This
may cause poor reception of the signals from
the tire pressure sensors, and the TPMS will
not function properly.
Some devices and transmitters may temporarily
interfere with the operation of the TPMS and
cause the low tire pressure warning light to
illuminate. Some examples are:
● Facilities or electric devices using similar
radio frequencies are near the vehicle.
● If a transmitter set to similar frequencies is
being used in or near the vehicle. ●
If a computer (or similar equipment) or a
DC/AC converter is being used in or near the
vehicle.
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 harm-
ful interference, and (2) this device must accept
any interference received, including interfer-
ence that may cause undesired operation.
Note: Changes or modifications not expressly
approved by the party responsible for compli-
ance could void the user’s authority to operate
the equipment.
For Canada:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions: (1) this device may not cause
interference, and (2) this device must accept any
interference, including interference that may
cause undesired operation of the device.
TPMS with Tire Inflation Indicator
When tire pressure is low, the low tire pressure
warning light illuminates.
This vehicle provides visual and audible signals
to help you inflate the tires to the recommended
COLD tire pressure.
Vehicle set-up:
1. Park the vehicle in a safe and level place.
2. Apply the parking brake and place the selector lever in the P (Park) position.
3. Place the ignition switch in the ON posi- tion. Do not start the engine.
Operation:
1. Add air to the tire.
2. In a few seconds, the hazard indicators will start flashing.
3. When the designated pressure is reached, the horn beeps once and the hazard
indicators stop flashing.
4. Perform the above steps for each tire.
● If the tire is over-inflated more than approxi-
mately 4 psi (30 kPa), the horn beeps and
the hazard indicators flash 3 times. To cor-
rect the pressure, push the core of the valve
stem on the tire briefly to release pressure.
Starting and driving5-5

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

NOTE:
The approach warning chime may sound and the
system display may blink when the ICC sensor
detects some reflectors
Awhich are fitted on
vehicles in other lanes or on the side of the road.
This may cause the ICC system to decelerate or
accelerate the vehicle. The ICC sensor may de-
tect these reflectors when the vehicle is driven
on winding roads, hilly roads or when entering
or exiting a curve. The ICC sensor may also de-
tect reflectors on narrow roads or in road con-
struction zones. In these cases you will have to
manually control the proper distance ahead of
your vehicle. Also, the sensor sensitivity can be affected by
vehicle operation (steering maneuver or driving
position in the lane) or traffic or vehicle condi-
tion (for example, if a vehicle is being driven
with some damage).
Automatic cancellation
A chime sounds under the following conditions
and the control is automatically canceled.
●
When the vehicle speed falls below approxi-
mately 15 MPH (24 km/h)
● When the system judges the vehicle is at a
standstill
● When the selector lever is shifted to the N
(Neutral) position
● When the windshield wipers are operating at
high speed. The system may cancel when
the wipers are set to the AUTO position.
● When the VDC is turned off
● When the ABS or VDC operates
● When the parking brake is applied
● When the SNOW mode switch is pushed on.
● When the 4WD shift switch is in the 4H or 4L
position (for 4WD models) ●
When driving into a strong light (i.e., sun-
light)
● When distance measurement becomes im-
paired due to adhesion of dirt or obstruction
to the sensor
● When a wheel slips
SSD0284A
Starting and driving5-55

PRECAUTIONS ON DISTANCE CONTROL
ASSIST SYSTEM
The system is intended to assist the driver to
keep a following distance from the vehicle
ahead traveling in the same lane and direction.
If the distance sensor
Adetects a slower
moving vehicle ahead, the system will reduce
the vehicle speed to help assist the driver to
maintain a following 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.
● This system will not adapt automatically to
road conditions. Do not use the system 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
WARNING
● As there is a performance limit to the dis-
tance control function, never rely solely on
the Distance Control Assist system. This
system does not correct careless, inatten-
tive or absent-minded driving, or overcome
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.
● The system may not function properly under
the following conditions. To avoid accidents,
never use the Distance Control Assist sys-
tem under the following conditions:
– On roads with 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 strong light (for example, at sun- rise or sunset) is directly shining on the
front of the vehicle
SSD1047
Starting and driving5-63

– When rain, snow or dirt adhere to the sys-tem sensor
– On steep downhill roads (frequent brak- ing may result in overheating the brakes)
– On repeated uphill and downhill roads
– 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 DCA system when it is not recommended
in this section.
DISTANCE CONTROL ASSIST
OPERATION
Always pay attention to the operation of the
vehicle and be ready to manually decelerate to
maintain the proper following distance. The
Distance Control Assist (DCA) system may not
be able to decelerate the vehicle under some
circumstances.
The DCA system uses a sensor
Alocated on
the front of the vehicle to detect vehicles trav-
eling ahead. The sensor generally detects the
signals returned from the reflectors on a vehicle
ahead. Therefore, if the sensor cannot detect
the reflector on the vehicle ahead, the DCA
system may not operate. 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 luggage room of your
vehicle
The DCA system is designed to automatically
check the sensor’s operation. When the sensor
is covered with dirt or is obstructed, the system
will automatically be canceled. If the sensor is
covered with ice, a transparent or translucent
vinyl bag, etc., the DCA system may not detect
them. In these instances, the Distance Control
Assist (DCA) system may not be able to decel-
erate the vehicle properly. Be sure to check and
clean the sensor regularly.
SSD1047
5-64Starting and driving

●The system may not function when the dis-
tance to the vehicle ahead is extremely
close.
● The system is designed to automatically
check the sensor’s functionality. If the sen-
sor is covered with ice, a transparent or
translucent plastic bag, etc., the system may
not detect them. In these instances the sys-
tem may not be able to warn the driver prop-
erly. Be sure to check and clean the sensor
regularly.
● Excessive noise will interfere with the warn-
ing chime sound, and the chime may not be
heard.
● A sudden appearance of a vehicle in front
(i.e., it abruptly cuts in) may not be detected
and the system may not warn the driver soon
enough.
● The system will be cancelled automatically
with a beep sound and the IBA OFF indicator
light will illuminate under the following
conditions:
– When the sensor window is dirty
– When the system malfunctions If the IBA OFF indicator light
Ailluminates with
a beep sound, pull off the road to a safe
location, stop the vehicle and turn the engine
off. Check to see if the sensor window is dirty.
If the sensor window is dirty, clean it with a soft
cloth and restart the engine. If the sensor
window is not dirty, restart the engine. If the
IBA OFF indicator light continues to illuminate
even if the IBA system is turned on with the IBA
OFF switch
B, have the system checked by an
INFINITI retailer.
To turn on the IBA system, see “INTELLIGENT
BRAKE ASSIST (IBA) SYSTEM” later in this sec-
tion.
FCW system operation (Type A)
The FCW system is automatically turned on
when the engine is started and the warning
systems ON indicator light
1illuminates on
the warning systems switch. You can turn the
FCW system off by pushing the warning systems
switch on the instrument panel. This switch will
turn on and off the LDW, BSW and FCW systems
at the same time.
SSD1050
Warning systems switch
SSD0956
Starting and driving5-77