check engine INFINITI QX60 2015 Service Manual

Warning light
When the system is not operating properly, the
chime sounds and the system warning light (or-
ange) 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,
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 retailer.
PREVIEW FUNCTION (for ICC
system equipped models)
The ICC system with the Preview Function iden-
tifies the need to apply emergency braking by
sensing the vehicle ahead in the same lane and
the distance to the vehicle ahead and relative
speed from it. It applies the brake pre-pressure
before the driver depresses the brake pedal and
helps improve brake response by reducing pedal
free play.
For additional information, refer to “Brake assist”
in this section.
The (DCA) system brakes and moves the accel-
erator pedal upward according to the distance
from and the relative speed of the vehicle ahead
to help assist the driver to maintain a following
distance.
WARNING
●
DCA helps maintain a distance to the
vehicle in front under certain condi-
tions. It is not a collision avoidance sys-
tem. Failure to apply the brakes could
result in an accident.
● Always drive carefully and attentively
when using the DCA system. Read and
understand the Owner’s Manual thor-
oughly before using the DCA system.
Do not use the DCA system except in
appropriate road and traffic conditions.
● 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 with
a warning chime. To prevent the vehicle
from moving, the driver must depress
the brake pedal.
● The DCA system will not apply brake
control while the driver’s foot is on the
accelerator pedal.
LSD2067
DISTANCE CONTROL ASSIST (DCA)
SYSTEM (if so equipped)
5-72Starting and driving

To turn on the DCA system, push the dynamic
driver assistance switch
1on the steering wheel
after starting the engine. The DCA system switch
indicator light
2in the vehicle information dis-
play will illuminate. Push the dynamic driver as-
sistance switch again to turn off the DCA system.
The DCA system switch indicator light will turn
off.
The system will start to operate after the vehicle
speed becomes above approximately 3 MPH
(5 km/h).
The dynamic driver assistance switch is used for
the LDP, DCA and BCI systems. When the dy-
namic driver assistance switch is pushed, the LDP system will also turn on or off simultaneously.
The DCA system can be individually set to on or
off on the display. If the system is set to off, the
system will not turn on even if the dynamic driver
assistance switch is pushed to on. To set the
system to on or off on the display, refer to “Setting
DCA system to ON/OFF” in this section.
Setting DCA system to ON/OFF:
The DCA can be turned on/off in the vehicle
information display using the buttons on the
steering wheel.
1. Press the
button, and select the “Set-
tings” using the
button. Then press
the ENTER button. 2. Select the “Driver Aids”, and press the EN-
TER button.
3. Select “Forward”, and press the ENTER but- ton.
4. To turn on the “Assistance (DCA)” check the box using the ENTER button.
If the LDP, BSI and DCA systems are set to off on
the information display and the dynamic driver
assistance switch is pushed, the LDP ON indica-
tor light, BSI ON indicator light, and the DCA
system switch indicator light will blink for approxi-
mately 2 seconds.
For additional information on LDP and BSI, refer
to “Lane Departure Warning (LDW) system/Lane
Departure Prevention (LDP) system (if so
equipped)” and “Blind Spot Warning
(BSW)/Blind Spot Intervention® (BSI) systems”
in this section.
Under the following conditions, the DCA system
will not operate and the DCA cancellation mes-
sage will pop up: ● When the SNOW mode switch is ON (To
use the DCA system, turn off the SNOW
mode switch, then turn on the dynamic driver
assistance switch.)
LIC2889LSD2069
Starting and driving5-77

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.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
ICC and is located behind the front bumper.
For additional information, refer to “Intelligent
Cruise Control (ICC) system (Full speed range)”
in this section.
DCA warning light (orange)
LSD2081
Starting and driving5-81

●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 malfunctions
If the system cancels and a message appears
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.
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. For additional information, refer to “How to
enable/disable the FCW system” using the set-
tings menu in this section.
Warning systems switch
LSD2015
5-84Starting and driving

If 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 front bumper is not dirty,
restart the engine. If the IBA OFF indicator light
continues 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. For additional information,
refer to “Driver Assistance” in the “Instrument and
controls” section of this manual.
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, refer to “Intelligent
Cruise Control (ICC) system (Full speed range)”
in this section.
CAUTION
During the first 1,200 miles (2,000 km),
follow these recommendations to obtain
maximum engine performance and ensure
the future reliability and economy of your
new vehicle. Failure to follow these rec-
ommendations may result in shortened
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 mi
(805 km) . Your engine, axle or other parts
could be damaged.
BREAK-IN SCHEDULE
5-88Starting and driving

If the AWD error warning message is displayed,
there may be a malfunction in the Intelligent AWD
system. Reduce vehicle speed and have your
vehicle checked by an INFINITI retailer as soon as
possible.The AWD high temperature message may be
displayed while trying to free a stuck vehicle due
to increased oil temperature. The driving mode
may change to 2-wheel drive. If this message is
displayed, stop the vehicle with the engine idling,
as soon as it is safe to do so. Then if the message
turns off, you can continue driving.The tire size message may be displayed if there is
a large difference between the diameters of front
and rear wheels. Pull off the road in a safe area,
with the engine idling. Check that all tire sizes are
the same, that the tire pressure is correct and that
the tires are not excessively worn.
If any warning messages continue to be dis-
played, have your vehicle checked by an INFINITI
retailer as soon as possible.
LSD2082LSD2083LSD2084
Starting and driving5-91

WARNING
●Do not drive beyond the performance
capability of the tires. Accelerating
quickly, sharp steering maneuvers or
sudden braking may cause loss of con-
trol, even with Intelligent AWD
engaged.
● For AWD equipped vehicles, do not at-
tempt to raise 2 wheels off the ground
and shift the transmission to any drive
or reverse position with the engine run-
ning. Doing so may result in drivetrain
damage or unexpected vehicle move-
ment which could result in serious per-
sonal injury or vehicle damage.
●
Do not attempt to test an AWD equipped
vehicle on a 2-wheel dynamometer (such
as the dynamometers used by some
states for emissions testing) or similar
equipment even if the other 2 wheels are
raised off the ground. Make sure that you
inform the test facility personnel that
your vehicle is equipped with AWD be-
fore it is placed on a dynamometer. Using
the wrong test equipment may result in
drivetrain damage or unexpected vehicle
movement which could result in serious
personal injury or vehicle damage.
CAUTION
● Do not operate the engine on a free
roller when any of the wheels are
raised.
● If you use the free roller, rotate 4 wheels
with the same speed without raising
any wheels.
● If an AWD warning message is dis-
played while driving there may be a
malfunction in the AWD system. Reduce
the vehicle speed immediately and have
your vehicle checked by an INFINITI re-
tailer as soon as possible.
● The powertrain may be damaged if you
continue driving when the AWD tem-
perature or tire size incorrect messages
are displayed
● If the AWD high temperature message
is displayed while you are driving, pull
off the road in a safe area, and idle the
engine. The driving mode will change to
2WD to prevent the AWD system from
malfunctioning. If the warning message
turns off, you can drive again. ●
If the tire size incorrect message is dis-
played while you are driving, pull off the
road in a safe area with the engine
idling. Check that all tire sizes are the
same, that the tire pressure is correct
and that the tires are not excessively
worn.
● If a warning message continues to be
displayed after the above operations,
have your vehicle checked by an
INFINITI retailer as soon as possible.
5-92Starting and driving

WARNING
●If the engine is not running or is turned
off while driving, the power assist for
the steering will not work. Steering will
be harder to operate.
● When the power steering warning light
illuminates with the engine running,
there will be no power assist for the
steering. You will still have control of
the vehicle but the steering will be
harder to operate. Have the power
steering system checked by an INFINITI
retailer.
The power steering system is designed to pro-
vide power assist while driving to operate the
steering wheel with light force.
When the steering wheel is operated repeatedly
or continuously while parking or driving at a very
low speed, the power assist for the steering
wheel will be reduced. This is to prevent over-
heating of the power steering system and protect
it from getting damaged. While the power assist
is reduced, steering wheel operation will become
heavy. If the steering wheel operation is still per-
formed, the power steering may stop and the
power steering warning light will illuminate. In a
safe location, stop the engine and push the igni-
tion switch to the OFF position. The temperature of the power steering system will go down after a
period of time and the power assist level will
return to normal after starting the engine. The
power steering warning light will go off. Avoid
repeating such steering wheel operations that
could cause the power steering system to over-
heat.
You may hear a sound from the front of the vehicle
when the steering wheel is operated quickly. This
is a normal operational noise and is not a mal-
function.
If the electric power steering warning light
PS
illuminates while the engine is running, it may
indicate the power steering system is not func-
tioning properly and may need servicing. Have
the power steering system checked by an
INFINITI retailer.
When the electric power steering warning light
illuminates with the engine running, there will be
no power assist for the steering but you will still
have control of the vehicle. At this time, greater
steering effort is required to operate the steering
wheel, especially in sharp turns and at low
speeds.
For additional information, refer to “Power steer-
ing warning light” in the “Instruments and con-
trols” section of this manual. The brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking at two wheels.
BRAKE PRECAUTIONS
Vacuum assisted brakes
The brake booster aids braking by using engine
vacuum. If the engine stops, you can stop the
vehicle by depressing the brake pedal. However,
greater foot pressure on the brake pedal will be
required to stop the vehicle and stopping dis-
tance will be longer.
Using the brakes
Avoid resting your foot on the brake pedal while
driving. This will overheat the brakes, wear out the
brake pads faster, and reduce gas mileage.
To help reduce brake wear and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down a
slope or long grade. Overheated brakes may
reduce braking performance and could result in
loss of vehicle control.
POWER STEERING
BRAKE SYSTEM
5-94Starting 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 one or more wheels
are close to locking up, the actuator rapidly ap-
plies 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
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.
PREVIEW FUNCTION (Intelligent
Cruise Control system equipped
models)
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 32 km/h
(20 MPH) or less.
● The pre-pressure function ceases when the
following conditions are met:
1. When the driver depresses the accelerator pedal or the brake pedal.
2. If the driver does not operate the accelerator or brake pedal within approximately 1 sec-
ond.
5-96Starting and driving

Warning light and display
When the Preview Function is not operating
properly, the chime sounds and the system warn-
ing light (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 resume driving.
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 retailer.
How to handle the sensor
The sensor for the Preview Function is common
with the ICC and is located below the front
bumper.
To keep the Preview Function operating properly,
be sure to observe the following:
● Always keep the area around the sensor
clean.
● Do not strike or damage 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 damaged due
to an accident, contact an INFINITI retailer.
● Do not attach a sticker (including transpar-
ent material) or install an accessory near the
sensor. This could cause failure or malfunc-
tion. 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.
When the VDC system operates, the
indi-
cator in the instrument panel flashes to note the
following:
LSD2067
VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM
5-98Starting and driving