engine INFINITI QX50 2014 Service Manual

Maintenance information
The maintenance intervals can be dis-
played for the engine oil, oil filter, tire
and other reminders.
To set a maintenance interval, select a
preferred item from the list.
You can also set to display a message to
remind you that the maintenance needs to
be performed.
The following example shows how to set
the engine oil maintenance information.
Use the same steps to set the other
maintenance information.
1. Set the interval (mileage) of the main-tenance schedule. To determine the
recommended maintenance interval,
refer to your “INFINITI Service and
Maintenance Guide”.
2. To display the reminder automatically when the desired distance is reached,
select the “Reminder” key.
3. Reset the driving distance to the new maintenance schedule.
4. To return to the previous screen, push the BACK button.
The unit can be converted between “US”
and “Metric”. (See “How to use SETTING button”
(P.4-14).)
SAA3003
Example
The Reminder will be automatically dis-
played when the specified distance has
been driven and every time the ignition
switch is pushed to the ACC or ON position.
The reminder will not appear while driving.
Select the “OK”key to hide the reminder
for the rest of the current drive.
To stop the reminder from appearing,
perform one of the following actions:
. Select the “Reset Distance”.
. Deactivate the “Reminder”.
. Increase the “Interval”distance to be
more than the current distance being
tracked.
Monitor, climate, audio, phone and voice recognition systems4-13

4-44Monitor, climate, audio, phone and voice recognition systems
SAA0564B
Rear
Open or close, and adjust the air flow
direction of ventilators.
: This symbol indicates that the vents are closed.
: This symbol indicates that the vents are open.
WARNING
. The air conditioner cooling function
operates only when the engine is run-
ning.
. Do not leave children or adults who
would normally require the support of
others alone in your vehicle. Pets should
not be left alone either. On hot, sunny
days, temperatures in a closed vehicle
could quickly become high enough to
cause severe or possibly fatal injuries to
people or animals.
. Do not use the recirculation mode for
long periods as it may cause the interior
air to become stale and the windows to
fog up.
Start the engine and operate the automatic
climate control system.
NOTE:
.Odors from inside and outside the
vehicle can build up in the air condi-
tioner unit. Odor can enter the passen-
ger compartment through the vents.
. When parking, set the heater and air
conditioner controls to turn off air
recirculation to allow fresh air into the passenger compartment. This
should help reduce odors inside the
vehicle.
When the “STATUS”button is pushed, the
automatic climate control status screen
will appear. (See “How to use STATUS
button” (P.4-10).)
AUTOMATIC CLIMATE CONTROL

4-52Monitor, climate, audio, phone and voice recognition systems
the system then automatically changes
from the outside air circulation mode to
the recirculation mode.
When the intake air control button is
pushed under the following conditions,
the indicator light on the“
”side will
illuminate and the exhaust gas/outside
odor detecting sensor will turn on.
. The air flow control is not in the front
defroster mode (the indicator light on
the “
”front defroster button is
turned off).
. The outside temperature is about 328F
(08C) or more.
. The exhaust gas/outside odor detecting
sensor detects industrial odors such as
pulp or chemicals and exhaust gas
such as gasoline or diesel.
When the automatic intake air control is
ON, for the first 5 minutes, the recircula-
tion mode is selected to prevent dust, dirt
and pollen from entering the vehicle and
cleans the air inside of the vehicle with
Plasmacluster
®ions that are emitted from
the ventilator.
After 5 minutes, the sensor detects outside
odor and exhaust gas and automatically
alternates between the recirculation mode
and outside air circulation mode.
OPERATING TIPS
When the engine coolant temperature and
outside air temperature are low, the air
flow from the foot outlets may not operate.
This is not a malfunction. After the coolant
temperature warms up, air will flow nor-
mally from the foot outlets.
SAA1983
The sunload sensor*Aon the instrument
panel helps maintain a constant tempera-
ture. Do not put anything on or around this
sensor.
IN-CABIN MICROFILTER
To make sure that the air conditioner
heats, defogs/defrosts and ventilates effi-
ciently, replace the filter according the
specified maintenance intervals listed in
the INFINITI Service and Maintenance
Guide. To replace the filter, contact an
INFINITI retailer.
The filter should be replaced if the air flow
decreases significantly or if windows fog

up easily when operating the heater or air
conditioner. A natural grape seed polyphe-
nol filter (if so equipped) collects and
neutralizes dirt, pollen, dust, etc.
SERVICING CLIMATE CONTROL
The climate control system in your INFINITI
is charged with a refrigerant designed with
the environment in mind.This refrigerant
will not harm the earth’s ozone layer.
However, special charging equipment and
lubricant are required when servicing your
INFINITI air conditioner. Using improper
refrigerants or lubricants will cause severe
damage to your climate control system.
(See “Capacities and recommended fuel/
lubricants” (P.9-2) for climate control sys-
tem refrigerant and lubricant recommenda-
tions.)
Your INFINITI retailer will be able to service
your environmentally friendly climate con-
trol system.
WARNING
The system contains refrigerant under high
pressure. To avoid personal injury, any air
conditioner service should be done only by
an experienced technician with the proper equipment.
AUDIO OPERATION PRECAUTIONS
Radio
Push the ignition switch to the ACC or ON
position and push the radio band select
button to turn on the radio. If you listen to
the radio with the engine not running, the
ignition switch should be pushed to the
ACC position.
Radio reception is affected by station
signal strength, distance from radio trans-
mitter, buildings, bridges, mountains and
other external influences. Intermittent
changes in reception quality normally are
caused by these external influences.
Using a cellular phone in or near the
vehicle may influence radio reception
quality.
Radio reception:
Your INFINITI radio system is equipped with
state-of-the-art electronic circuits to en-
hance radio reception. These circuits are
designed to extend reception range, and to
enhance the quality of that reception.
However there are some general character-
istics of both FM and AM radio signals that
can affect radio reception quality in a
moving vehicle, even when the finest
Monitor, climate, audio, phone and voice recognition systems4-53
AUDIO SYSTEM

4-72Monitor, climate, audio, phone and voice recognition systems
Disc EJECT:
When the Disc EJECT button is pushed with
the CD loaded, the CD will be ejected.
When this button is pushed while the CD is
being played, the CD will be ejected.
If the CD comes out and is not removed, it
will be pulled back into the slot to protect
it.
DVD (Digital Versatile Disc) PLAYER
OPERATION (models with naviga-
tion system)
Precautions
Start the engine when using the DVD
entertainment system.
Movies will not be shown on the front
display while the vehicle is in any drive
position to reduce driver distraction. Audio
is available when a movie is played. To
view movies in the front display, stop the
vehicle in a safe location, move the shift
lever to the P (Park) position and apply the
parking brake.
WARNING
. The driver must not attempt to operate
the DVD system or wear the headphones
while the vehicle is in motion so that full
attention may be given to vehicle opera-
tion.
. Do not attempt to modify the system to
display a movie on the front screen while
the vehicle is being driven. Doing so may
distract the driver and may cause a
collision and serious personal injury or
death.
CAUTION
.Only operate the DVD while the vehicle
engine is running. Operating the DVD for
extended periods of time with the
engine OFF can discharge the vehicle
battery.
. Do not allow the system to get wet.
Excessive moisture such as spilled
liquids may cause the system to mal-
function.
. While playing VIDEO-CD media, this DVD player does not guarantee complete
functionality of all VIDEO-CD formats.
Display settings
To adjust the front display mode, push the
SETTING button while the DVD is being
played, select the
“Others”key and then
select the “Display”key.
To adjust the display ON/OFF, brightness,
tint, color and contrast, select the “Display
Adjustment” key and then select each key.
Then you can adjust each item using the
INFINITI controller. After changes have
been made push the BACK button to save
the setting.

CAUTION
.Keep the antenna as far away as
possible from the electronic control
modules.
. Keep the antenna wire more than 8 in
(20 cm) away from the electronic control
system harness. Do not route the anten-
na wire next to any harness.
. Adjust the antenna standing-wave ratio
as recommended by the manufacturer.
. Connect the ground wire from the CB
radio chassis to the body.
. For details, consult an INFINITI retailer.
WARNING
.Use a phone after stopping your vehicle
in a safe location. If you have to use a
phone while driving, exercise extreme
caution at all times so full attention may
be given to vehicle operation.
. If you find yourself unable to devote full
attention to vehicle operation while
talking on the phone, pull off the road
to a safe location and stop your vehicle
before doing so.
CAUTION
To avoid draining the vehicle battery, use a
phone after starting the engine.
Your INFINITI is equipped with Bluetooth®
Hands-Free Phone System. If you are an
owner of a compatible Bluetooth®enabled
cellular phone, you can set up the wireless
connection between your cellular phone
and the in-vehicle phone module. With
Bluetooth
®wireless technology, you can
make or receive a telephone call with your
cellular phone in your pocket. Once a cellular phone is connected to the
in-vehicle phone module, no phone con-
necting procedure is required anymore.
Your phone is automatically connected
with the in-vehicle phone module when
the ignition switch is pushed to the ON
position with the registered cellular phone
turned on and carried in the vehicle.
You can register up to 5 different Blue-
tooth
®cellular phones in the in-vehicle
phone module. However, you can talk on
only one cellular phone at a time.
The INFINITI Voice Recognition system
supports the phone commands, so dialing
a phone number using your voice is
possible. For more details, see “INFINITI
Voice Recognition system (models with
navigation system)” (P.4-116).
Before using the Bluetooth
®Hands-Free
Phone System, refer to the following notes.
. Wireless LAN (Wi-Fi) and the Bluetooth
®
functions share the same frequency
band (2.4 GHz). Using the Bluetooth®
and the wireless LAN functions at the
same time may slow down or discon-
nect the communication and cause
undesired noise. It is recommended
that you turn off the wireless LAN (Wi-
Fi) when using the Bluetooth
®func-
Monitor, climate, audio, phone and voice recognition systems4-91
Bluetooth®HANDS-FREE PHONE SYSTEM
(models with navigation system)

4-102Monitor, climate, audio, phone and voice recognition systems
WARNING
.Use a phone after stopping your vehicle
in a safe location. If you have to use a
phone while driving, exercise extreme
caution at all times so full attention may
be given to vehicle operation.
. If you find yourself unable to devote full
attention to vehicle operation while
talking on the phone, pull off the road
to a safe location and stop your vehicle
before doing so.
CAUTION
To avoid draining the vehicle battery, use a
phone after starting the engine.
Your vehicle is equipped with Bluetooth®
Hands-Free Phone System. If you are an
owner of a Bluetooth®enabled cellular
phone, you can set up the wireless
connection between your cellular phone
and the in-vehicle phone module. With
Bluetooth
®wireless technology, you can
make or receive a telephone call with your
cellular phone in your pocket. Once your cellular phone is paired to the
in-vehicle phone module, no phone con-
necting procedure is required. Your phone
is automatically connected with the in-
vehicle phone module when the ignition
switch is pushed to the
“ON”position with
the registered cellular phone turned on
and carried in the vehicle.
You can register up to 5 different Blue-
tooth
®cellular phones in the in-vehicle
phone module. However, you can talk on
only one cellular phone at a time.
When a call is active, the audio system and
microphone (located in the ceiling in front
of the rearview mirror) are used for the
handsfree communications.
If the audio system is being used at the
time, the audio mode will mute and will
stay muted until the active call is ended.
The INFINITI Voice Recognition system
supports the phone commands, so dialing
a phone number using your voice is
possible.
Before using the Bluetooth
®Hands-Free
Phone System, refer to the following notes.
. Wireless LAN (Wi-Fi) and the Bluetooth
®
functions share the same frequency
band (2.4 GHz). Using the Bluetooth®
and the wireless LAN functions at the
same time may slow down or discon-
nect the communication and cause
undesired noise. It is recommended
that you turn off the wireless LAN (Wi-
Fi) when using the Bluetooth
®func-
tions.
. Set up the wireless connection between
a cellular phone and the in-vehicle
phone module before using the Blue-
tooth
®Hands-Free Phone System.
. Some Bluetooth®enabled cellular
phones may not be recognized by the
in-vehicle phone module.
. You will not be able to use a hands-free
phone under the following conditions:
— Your vehicle is outside of the tele-
phone service area.
— Your vehicle is in an area where it is
difficult to receive radio waves; such
as in a tunnel, in an underground
parking garage, behind a tall build-
ing or in a mountainous area.
— Your cellular phone is locked in
order not to be dialed.
. When the radio wave condition is not
ideal or ambient sound is too loud, it
may be difficult to hear the other
person’s voice during a call.
Bluetooth®HANDS-FREE PHONE SYSTEM
(models without navigation system) (if so
equipped)

4-116Monitor, climate, audio, phone and voice recognition systems
2. Sit in the driver’s seat with the enginerunning, the parking brake on, and the
transmission in Park.
3. Press the
button.
4. Speak: “Help”. The system acknowl-
edges the command and announces
the next set of available commands.
5. Speak: "Voice Adaptation". The system acknowledges the command and dis-
plays the voice adaptation mode
screen.
6. Voice memory A or memory B is selected automatically. If both memory
locations are already in use, the system
will prompt you to overwrite one.
Follow the instructions provided by
the system.
7. When preparation is complete and you are ready to begin, press the
button.
8. The voice adaptation mode will be explained. Follow the instructions pro-
vided by the system.
9. When training is finished, the system will tell you an adequate number of
phrases have been recorded.
10. The system will ask you to say your name. Follow the instructions to regis- ter your name.
11. The system will announce that voice adaptation has been completed and
the system is ready.
The voice adaptation mode will stop if:
. The
button is pressed in voice
adaptation mode.
. The vehicle is driven during voice
adaptation mode.
. The ignition switch is turned to the OFF
or LOCK position. INFINITI Voice Recognition allows hands-
free operation of the Phone, Navigation,
Information and Audio systems in one of
two modes, Standard Mode or Alternate
Command Mode.
In Standard Mode, commands that are
available are always shown on the display
and announced by the system. You can
complete your desired operation by simply
following the prompts given by the system.
(See
“INFINITI Voice Recognition Standard
Mode” (P.4-117) for details.)
For advanced operation, you can use the
Alternate Command Mode. (See “INFINITI
Voice Recognition Alternate Command
Mode” (P.4-129) for details.) When this
mode is active, an expanded list of
commands can be spoken after pushing
the TALK
switch, and the voice
command menu prompts are turned off.
Review the expanded command list, which
is available when this mode is active. Note
that in this mode the recognition success
rate may be affected as the number of
available commands and the ways of
speaking each command are increased.
To switch one mode to another, see each
mode description later in this section.
To improve the recognition success rate
INFINITI VOICE RECOGNITION SYSTEM
(models with navigation system)

5 Starting and driving
Precautions when starting and driving ................. 5-3Exhaust gas (carbon monoxide) ....................... 5-3
Three-way catalyst........................................... 5-3
Tire Pressure Monitoring System (TPMS).......... 5-4
Avoiding collision and rollover......................... 5-6
On-pavement and off-road
driving precautions.......................................... 5-7
Off-road recovery............................................. 5-7
Rapid air pressure loss ................................... 5-7
Drinking alcohol/drugs and driving ................. 5-8
All-Wheel Drive (AWD) driving safety precautions
(for AWD models) ........................................... 5-9
Push-button ignition switch ................................. 5-9
Operating range for engine start function ...... 5-10
Push-button ignition switch operation ........... 5-10
Push-button ignition switch positions ............ 5-11
Emergency engine shut off ............................ 5-11
Intelligent Key battery discharge ................... 5-12
Before starting the engine ................................. 5-12
Starting the engine ............................................ 5-13
Driving the vehicle ............................................. 5-14 Automatic transmission ................................. 5-14
Parking brake .................................................... 5-18 Lane Departure Warning (LDW) system/Lane
Departure Prevention (LDP) system (if
so equipped)..................................................... 5-19
Lane Departure Warning (LDW) system......... 5-20
Lane Departure Prevention (LDP) system ...... 5-22
Lane camera unit maintenance .................... 5-27
Blind Spot Warning (BSW) system (if
so equipped)..................................................... 5-27 BSW system operation ................................. 5-29
BSW driving situations................................. 5-30
BSW malfunction ......................................... 5-33
System maintenance.................................... 5-34
Cruise control.................................................... 5-34
Precautions on cruise control....................... 5-34
Cruise control operations ............................. 5-35
Intelligent Cruise Control (ICC) system
(FULL SPEED RANGE) (if so equipped) ................ 5-36 Selecting the vehicle-to-vehicle distance
control mode ............................................... 5-38
Vehicle-to-vehicle distance control mode...... 5-38
Precautions on vehicle-to-vehicle distance
control mode ............................................... 5-38
Vehicle-to-vehicle distance control
mode operation ........................................... 5-40

Conventional (fixed speed) cruise
control mode ................................................. 5-55
Preview function (for Intelligent Cruise Control
system equipped models) ............................. 5-58
Distance Control Assist (DCA) system (if
so equipped) ..................................................... 5-59 Precautions on Distance Control
Assist system ................................................ 5-59
Distance Control Assist operation .................. 5-61
Forward Collision Warning (FCW) system (if
so equipped) ..................................................... 5-71
Precautions on FCW system ........................... 5-72
Intelligent Brake Assist (IBA) system (if
so equipped) ..................................................... 5-74
Precautions on IBA system ............................ 5-75
Break-in schedule .............................................. 5-78
Fuel Efficient Driving Tips................................... 5-78
Increasing fuel economy .................................... 5-80
All-Wheel Drive (AWD) (if so equipped) .............. 5-80
Parking/parking on hills .................................... 5-82 Power steering .................................................. 5-83
Brake system .................................................... 5-83
Braking precautions ..................................... 5-83
Parking brake break-in................................. 5-83
Brake assist ...................................................... 5-84 Brake assist................................................. 5-84
Preview function (Intelligent Cruise Control
system equipped models) ............................ 5-84
Anti-lock Braking System (ABS) .................... 5-86
Vehicle Dynamic Control (VDC) system .............. 5-88
Cold weather driving ......................................... 5-89
Freeing a frozen door lock ........................... 5-89
Antifreeze .................................................... 5-89
Battery......................................................... 5-89
Draining of coolant water............................. 5-89
Tire equipment ............................................ 5-90
Special winter equipment ............................ 5-90
Driving on snow or ice ................................. 5-90
Engine block heater (if so equipped)............ 5-91