O2 Sensor INFINITI QX60 2014 Workshop Manual

Approach warning
If your vehicle comes closer to the vehicle ahead
due to rapid deceleration of that vehicle or if
another vehicle cuts in, the system warns the
driver with the chime and DCA system display.
Decelerate by depressing the brake pedal to
maintain a safe vehicle distance if:
●The chime sounds.
●The vehicle ahead detection indicator blinks.
The warning chime may not sound in some cases
when there is a short distance between vehicles.
Some examples are:
●When the vehicles are traveling at the same
speed and the distance between vehicles is
not changing
●When the vehicle ahead is traveling faster
and the distance between vehicles is in-
creasing
●When a vehicle cuts in near your vehicle
The warning chime will not sound when your
vehicle approaches vehicles that are parked or
moving slowly.NOTE:
The approach warning chime may sound
and the system display may blink when ICC
sensor detects vehicles in other lanes
Aor
objects on the side of the road
A. This may
cause the DCA system to operate inappro-
priately. The ICC sensor may detect these
objects when the vehicle is driven on wind-
ing roads, narrow roads, hilly roads or when
entering or exiting a curve. 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 condition
(for example, if a vehicle is being driven with some
damage) .
Automatic cancellation
Condition A:
Under the following conditions, the Distance
Control Assist system is automatically canceled.
The chime will sound and the Distance Control
Assist (DCA) cancellation message will pop up.
SSD0284A
5-80Starting and driving

●When the VDC system is turned off
●When the VDC or ABS (including the trac-
tion control system) operates
●When the SNOW mode switch is turned
ON
Action to take:
When the conditions listed above are no longer
present, turn the system off with the dynamic
driver assistance switch. Turn the DCA system
back on to use the system.Condition B:
When the sensor area of the front bumper is dirty,
making it impossible to detect a vehicle ahead,
the DCA system is automatically canceled.
The chime sounds and the system warning light
(orange) will come on and the “Sensor Blocked”
indicator will appear.
Action to take:
If the warning light comes on, park the vehicle in a
safe place, turn the engine off. Clean the sensor
area of the bumper and then perform the settings
again.
Condition C:
When the DCA system is not operating properly,
the chime sounds and the system warning light
(“DCA” orange) will come on.
Action to take:
If the warning light comes on, park the vehicle in a
safe place. Turn the engine off, restart the engine,
and turn on the DCA system again.
LSD2080
DCA warning light (orange)
LSD2081
Starting and driving5-81

If it is not possible to set the system or the
indicator stays on, it may indicate that the
system is malfunctioning. Although the ve-
hicle is still driveable under normal condi-
tions, have the vehicle checked at an
INFINITI retailer.
Sensor maintenance
How to handle the sensor:
The sensor for the DCA system is common with
Intelligent Cruise Control and is located behind
the front bumper.
To handle the sensor, see “Intelligent Cruise
Control (ICC) system (Full speed range)” in this
section.The Forward Collision Warning (FCW) system
will warn the driver by a warning light and chime
when your vehicle is getting close to the vehicle
ahead in the traveling lane.
The FCW system will function when your vehicle
is driven at speeds of approximately 10 MPH
(15 km/h) and above.
The FCW system uses the distance sensor
A
located behind the front bumper to measure the
distance to the vehicle ahead. When the system
judges that your vehicle is getting close to the
vehicle ahead in the travel lane, the vehicle ahead
detection indicator light on the instrument panel
blinks and a warning chime sounds.
The FCW system can be turned on/off by push-
ing the warning systems switch. The warning
systems ON indicator light
1on the switch will
illuminate when the system is ON.
LSD2098
FORWARD COLLISION WARNING
(FCW) SYSTEM (if so equipped)
5-82Starting and driving

PRECAUTIONS ON FCW SYSTEM
WARNING
●The FCW system is intended to warn
you before a collision occurs; it cannot
prevent a collision. It is the driver’s re-
sponsibility to stay alert, drive safely
and be in control of the vehicle at all
times.
●As there is a performance limit, the sys-
tem may not provide a warning in cer-
tain conditions.●The system will not detect the following
objects:
– Pedestrians, animals or obstacles in
the roadway
– Oncoming vehicles in the same lane
●The system will not detect another ve-
hicle under the following conditions:
– When the sensor area gets dirty and
it is impossible to detect the distance
from the vehicle ahead.– When the radar signal is temporarily
interrupted
●The system may not function properly
under the following conditions:
– A preceding vehicle is with a large
amount of ground clearance or pro-
truding freight (including a small ve-
hicle such as motorcycles) .
– When the sensor area of the front
bumper gets dirty or it is impossible
to detect the distance from the ve-
hicle ahead.
– When visibility is low (such as rain,
fog, snow, etc.) .
– When snow or road spray from trav-
eling vehicles is splashed.
– When excessively heavy baggage is
loaded in the rear seat or the luggage
room of your vehicle.
– When abruptly accelerating or
decelerating.
– On a steep downhill slope or on
roads with sharp curves.
Vehicle ahead detection light
SSD0749
Warning systems switch
LSD2015
Starting and driving5-83

– When there is a highly reflective ob-
ject near the vehicle ahead (for ex-
ample, being very close to another
vehicle, signboard, etc.)
– When you are towing a trailer.
●Depending on certain road conditions
(curved or beginning of a curve) , vehicle
conditions (steering position or vehicle
position) , or the preceding vehicle’s
conditions (position in lane, etc.) , the
system may not function properly. The
system may detect highly reflective ob-
jects such as signs and other stationary
objects on the road or near the traveling
lane and provide unnecessary warning.
●The system may not function in offset
conditions.
●The system may not function when the
distance to the vehicle ahead is ex-
tremely close.●The system is designed to automatically
check the sensor’s functionality. If the
sensor area of the front bumper is cov-
ered with ice, a transparent or translu-
cent bag, etc., the system may not de-
tect them. In these instances, the
system may not be able to warn the
driver properly. Be sure to check and
clean the sensor area of the front bum-
per regularly.
●Excessive noise will interfere with the
warning chime sound, and the chime
may not be heard.
●A sudden appearance of a vehicle in
front (for example, it abruptly cuts in)
may not be detected and the system
may not warn the driver soon enough.
●The system will be cancelled automati-
cally with a beep sound and a message
will pop up under the following
conditions:
– When the sensor area of the front
bumper is dirty
– When the system malfunctionsIf the system cancels and a message pops up
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 area of the front
bumper is blocked. If the sensor area of the front
bumper is blocked, remove the object blocking
and restart the engine.
If the sensor is malfunctioning, have the system
checked by an INFINITI retailer.
5-84Starting and driving

FCW SYSTEM OPERATION
The FCW system is active at speeds of approxi-
mately 10 MPH (15 km/h) and above, when the
system turns on.
The warning systems switch is used to turn on
and off the FCW system when it is activated
using the settings menu on the information dis-
play. See “How to enable/disable the FCW sys-
tem” using the settings menu later in this section.
When the warning systems switch is turned off,
the indicator
1on the switch is off. The indicator
will also be off if the FCW, the Lane DepartureWarning (LDW) and the Blind Spot Warning
(BSW) systems are deactivated.
When the warning systems switch is pushed, the
LDW and BSW system will also turn on or off
simultaneously. See “Lane Departure Warning
(LDW) system/Lane Departure Prevention (LDP)
system” and “Blind Spot Warning (BSW)/Blind
Spot Intervention (BSI)/Back-up Collision Inter-
vention (BCI) systems” in this section.
For the sensor maintenance, see “Intelligent
Cruise Control (ICC) system” in this section.
How to enable/disable the FCW
system
Perform the following steps to enable or disable
the FCW system.
1. Press the
button until “Settings” dis-
plays in the vehicle information display. Use
the
to select “Driver Assistance”.
Then press the ENTER button.
2. Select “Driver Aids”, and press the ENTER
button.
3. To set the DCA system to on or off, use
the
buttons to navigate in the menu
and use the ENTER button to select or
change an item:●Select “Forward” and press the ENTER
button.
– To turn on the warning, use the ENTER
button to check box for “Warning (FCW)”
– To turn on the system, use the ENTER
button to check box for “Assistance
(DCA)”
Warning systems switch
LSD2015
Starting and driving5-85

The Intelligent Brake Assist (IBA) system warns
the driver by a warning light and chime when
there is a risk of a collision with the vehicle ahead
in the traveling lane and the driver must take
avoidance action immediately. The system helps
reduce the rear-end collision speed by applying
the brakes when the system judges that the col-
lision cannot be prevented.
The IBA system will function when your vehicle is
driven at speeds of approximately 10 MPH
(15 km/h) and above, and when your vehicle is
driven at speeds approximately 10 MPH
(15 km/h) faster than the vehicle ahead.
The IBA system uses a distance sensor
Alo-
cated behind the front bumper to measure the
distance to the vehicle ahead. When the system
judges that your vehicle is getting close to the
vehicle ahead in the traveling lane, the vehicle
ahead detection indicator light on the information
display blinks and a warning chime sounds.
The IBA system can be turned on/off by in the
settings of the vehicle information display, see
“Driving aids” in the “Instrument and controls”
section.PRECAUTIONS ON IBA SYSTEM
WARNING
●The IBA system is not a collision avoid-
ance system. It is the driver’s responsi-
bility to stay alert, drive safely and be in
control of the vehicle at all times.
●As there is a performance limit, the sys-
tem may not provide a warning or brak-
ing in certain conditions.
●The system will not detect the following
objects:
LSD2098SSD0749
INTELLIGENT BRAKE ASSIST (IBA)
SYSTEM (if so equipped)
5-86Starting and driving

– Pedestrians, animals or obstacles in
the roadway
– Oncoming vehicles in the same lane
●The sensor generally detects the sig-
nals returned from the vehicle ahead.
Therefore, the system may not function
properly under the following
conditions:
– When the sensor area of the front
bumper gets dirty and it is impos-
sible to detect the distance from the
vehicle ahead.
– When radar signal is temporarily
interrupted.
– When visibility is low (such as rain,
fog, snow, etc.) .
– When snow or road spray from trav-
eling vehicles is splashed.
– When excessively heavy baggage is
loaded in the rear seat or the luggage
room of your vehicle.
– When abruptly accelerating or
decelerating.
– On a steep downhill slope or on
roads with sharp curves.– When there is a highly reflective ob-
ject near the vehicle ahead (for ex-
ample, being very close to another
vehicle, signboard, etc.)
– When you are towing a trailer.
●Depending on certain road conditions
(curved or beginning of a curve) , vehicle
conditions (steering position or vehicle
position) , or the preceding vehicle’s
conditions (position in lane, etc.) , the
system may not function properly. The
system may detect objects such as
signs and other stationary objects on
the road or near the traveling lane and
provide unnecessary warning.
●The system may not function in offset
conditions.
WARNING
●In extreme conditions, detection of
these objects may cause the system to
function.
Reflectors on the road
LSD2021
Starting and driving5-87

●The system is designed to automatically
check the sensor’s functionality. When
the sensor detects an obstruction of the
radar signals due to dirt, adhesive ma-
terial, or similar objects to the front
bumper, the system will automatically
cancel. However, sensor may not detect
all obstructive material. In these in-
stances the system may not be able to
warn the driver properly. Be sure to
check and clean the sensor area of the
front bumper regularly.
●Excessive noise will interfere with the
warning chime sound, and the chime
may not be heard.
●A sudden appearance of a vehicle in
front (for example, it abruptly cuts in)
may not be detected and the system
may not warn the driver soon enough.
●The system will be cancelled automati-
cally with a beep sound and the IBA
warning light will illuminate under the
following conditions:
– When the sensor area of the front
bumper is dirty
– When the system malfunctionsIf the IBA OFF indicator light illuminates 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 area of the front bumper is dirty.
If the sensor area of the front bumper is dirty,
clean it with a soft cloth and restart the engine. If
the sensor area of the bumper is not dirty, restart
the engine. If the IBA OFF indicator light contin-
ues to illuminate even if the IBA system is turned
on, have the system checked by an INFINITI
retailer.
IBA SYSTEM OPERATION
The IBA system will function when your vehicle is
driven at speeds of approximately 10 MPH
(15 km/h) or above, and when the vehicle’s
speed is approximately 10 MPH (15 km/h) faster
than that of the vehicle ahead.
To turn the system on/off:
1. Push the
button to enter the “Set-
tings” menu in the vehicle information dis-
play, then select using the ENTER button.
2. Use the
buttons to select “Driver As-
sistance”, then press the ENTER button.
3. Use the
buttons to select “Intelligent
Brake Assist”, using the ENTER button the
system can be turned On or Off.The IBA system will remain in the last ON or OFF
state it was left in until it is changed in the vehicle
information display, see “Driver Assistance” in the
“Instrument and controls” section.
Illumination of the IBA OFF indicator light without
the warning chime sound is an indication that the
IBA system is temporarily unavailable. It will occur
under the following conditions:
When the radar signal is temporarily interrupted.
The IBA OFF indicator light will turn off when the
system returns to its normal operating conditions.
For the sensor maintenance, see “Intelligent
Cruise Control (ICC) system (Full speed range)”.
5-88Starting and driving

WARNING
Do not pump the brake pedal. Doing so
may result in increased stopping
distances.
Self-test feature
The ABS includes electronic sensors, electric
pumps, hydraulic solenoids and a computer. The
computer has a built-in diagnostic feature that
tests the system each time you start the engine
and move the vehicle at a low speed in forward or
reverse. When the self-test occurs, you may hear
a “clunk” noise and/or feel a pulsation in the brake
pedal. This is normal and does not indicate a
malfunction. If the computer senses a malfunc-
tion, it switches the ABS off and illuminates the
ABS warning light on the instrument panel. The
brake system then operates normally, but without
anti-lock assistance.
If the ABS warning light illuminates during the
self-test or while driving, have the vehicle
checked by an INFINITI retailer.
Normal operation
The ABS operates at speeds above3-6MPH(5
- 10 km/h). The speed varies according to road
conditions.When the ABS senses that 1 or more wheels are
close to locking up, the actuator rapidly applies
and releases hydraulic pressure. This action is
similar to pumping the brakes very quickly. You
may feel a pulsation in the brake pedal and hear a
noise from under the hood or feel a vibration from
the actuator when it is operating. This is normal
and indicates that the ABS is operating properly.
However, the pulsation may indicate that road
conditions are hazardous and extra care is re-
quired while driving.
BRAKE ASSIST (if so equipped)
When the force applied to the brake pedal ex-
ceeds a certain level, the brake assist is activated
generating greater braking force than a conven-
tional 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-
ers responsibility to stay alert, drive safely
and be in control of the vehicle at all times.The Vehicle Dynamic Control (VDC) system uses
various sensors to monitor driver inputs and ve-
hicle motion. Under certain driving conditions,
the VDC System helps to perform the following
functions:
●Controls brake pressure to reduce wheel
slip on one slipping drive wheel so power is
transferred to a non slipping drive wheel on
the same axle.
●Controls brake pressure and engine output
to reduce drive wheel slip based on vehicle
speed (traction control function) .
●Controls brake pressure at individual wheels
and engine output to help the driver maintain
control of the vehicle in the following condi-
tions:
– understeer (vehicle tends to not follow
the steered path despite increased steer-
ing input)
– oversteer (vehicle tends to spin due to
certain road or driving conditions)
The VDC system can help the driver to maintain
control of the vehicle, but it cannot prevent loss of
vehicle control in all driving situations.
VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM
5-96Starting and driving