maintenance INFINITI QX50 2019 User Guide

When the “[X]” icon is displayed on the
screen, the camera image may be receiving
temporary electronic disturbances from sur-
rounding devices. This will not hinder normal
driving operation but the system should be
inspected. It is recommended that you visit an
INFINITI retailer for this service.SYSTEM MAINTENANCE
CAUTION
∙ Do not use alcohol, benzine or thinner toclean the camera. This will cause
discoloration.
∙ Do not damage the cameras as the moni- tor screen may be adversely affected.
If dirt, rain or snow accumulates on any of the
cameras
1, the Around View® Monitor may
not display objects clearly. Clean the camera
by wiping with a cloth dampened with a di-
luted mild cleaning agent and then wiping
with a dry cloth.
WARNING
Failure to follow the warnings and instruc-
tions for proper use of the sonar function as
outlined in this section could result in seri-
ous injury or death.
∙ The sonar is a convenience feature. It is not a substitute for proper parking.
∙ This function is designed as an aid to the driver in detecting large stationary ob-
jects to help avoid damaging the vehicle.
∙ The driver is always responsible for safety during parking and other
maneuvers.
∙ Always look around and check that it is safe to move before parking.
∙ Read and understand the limitations of the sonar as contained in this section.
The sonar function helps to inform the driver
of large stationary objects around the vehicle
when parking by issuing an audible and visual
alert.
LHA4571LHA4554
CAMERA AIDING SONAR (parking
sensor) (if so equipped)
4-24Monitor, climate, audio, phone and voice recognition systems

∙ The system will not detect small objectsbelow the bumper, and may not detect
objects close to the bumper or on the
ground.
∙ The system may not detect the following objects:
– Fluffy objects such as snow, cloth, cotton, grass or wool.
– Thin objects such as rope, wire or chain.
– Wedge-shaped objects.
∙ If your vehicle sustains damage to the bumper fascia, leaving it misaligned or
bent, the sensing zone may be altered
causing inaccurate measurement of ob-
jects or false alarms.
CAUTION
Excessive noise (such as audio system vol-
ume or an open vehicle window) will inter-
fere with the tone and it may not be heard.
System temporarily unavailable
When the amber markers are displayed at the
corners of the vehicle icon and the function
cannot be activated from the Camera setting
menu (the setting items are grayed out), the
sonar system may be malfunctioning.
SYSTEM MAINTENANCE
CAUTION
Keep the surface of the sonar sensors (lo-
cated on the front and rear bumper fascia)
free from accumulations of snow, ice and
dirt. Do not scratch the surface of the sonar
sensors when cleaning. If the sensors are
covered, the accuracy of the sonar function
will be diminished.
4-28Monitor, climate, audio, phone and voice recognition systems

∙ When the Rear View camera has de-tected a blockage (icon will blink).
If the icon light continues to illuminate or-
ange, have the MOD system checked. It is
recommended that you visit an INFINITI re-
tailer for this service.
SYSTEM MAINTENANCE
CAUTION
∙ Do not use alcohol, benzine or thinner to clean the camera. This will cause
discoloration.
∙ Do not damage the camera as the moni- tor screen may be adversely affected. If dirt, rain or snow accumulates on any of the
cameras
1, the MOD system may not oper-
ate properly. Clean the camera by wiping
with a cloth dampened with a diluted mild
cleaning agent and then wiping with a dry
cloth.
LHA4554
4-34Monitor, climate, audio, phone and voice recognition systems

System maintenance........................ 5-37
Lane Departure Prevention (LDP)
(if so equipped) ................................. 5-38
LDP system operation ....................... 5-39
How to enable/disable the LDP system ......5-40
LDP system limitations ......................5-41
System temporarily unavailable ..............5-42
System maintenance ........................ 5-43
Blind Spot Warning (BSW) (if so equipped) ......5-44
BSW system operation ......................5-45
How to enable/disable the BSW system .....5-46
BSW system limitations .....................5-47
BSW driving situations ......................5-48
System temporarily unavailable ..............5-51
System maintenance ........................ 5-52
Blind Spot Intervention® (BSI) (if so equipped) . . . 5-53 BSI system operation ........................ 5-55
How to enable/disable the BSI system .......5-56
BSI system limitations ....................... 5-57
BSI driving situations ........................ 5-59
System temporarily unavailable ..............5-64
System malfunction ......................... 5-64
System maintenance ........................ 5-64Backup Collision Intervention (BCI)
(if so equipped)
................................. 5-65
BCI system operation ....................... 5-67
Turning the BCI system on/off ...............5-70
BCI system limitations ........................ 5-71
System temporarily not available .............5-72
System malfunction ......................... 5-73
System maintenance ........................ 5-73
Rear Cross Traffic Alert (RCTA) (if so equipped) . 5-74 RCTA system operation .....................5-75
How to enable/disable the RCTA system .....5-77
RCTA system limitations .....................5-78
System temporarily unavailable ..............5-80
System maintenance ........................ 5-81
Cruise control (if

so equipped) .................. 5-82
Precautions on cruise control ................5-82
Cruise control operations ....................5-83
Intelligent Cruise Control (ICC) (for vehicles
without ProPILOT Assist) (if so equipped) .......5-84
How to select the cruise control mode .......5-86
Vehicle-to-vehicle distance control mode .....5-86
Vehicle-to-vehicle distance control mode
operation ................................... 5-88

Vehicle-to-vehicle distance control mode
switches.................................... 5-89
Vehicle-to-vehicle distance control mode
limitations .................................. 5-96
System temporarily unavailable .............5-100
System maintenance ....................... 5-102
Conventional (fixed speed) cruise control
mode ...................................... 5-103
ProPILOT Assist (if so equipped) ...............5-108
ProPILOT Assist system operation ..........5-109
Turning the conventional (fixed speed)
cruise control mode on .....................5-112
Operating ProPILOT Assist .................5-113
How to enable/disable the Steering
Assist ...................................... 5-117
Intelligent Cruise Control (ICC)
(for vehicles with ProPILOT Assist) .........5-118
Steering Assist ............................. 5-128
Conventional (fixed speed) cruise control
mode ...................................... 5-135
Distance Control Assist (DCA) (if so equipped) . . 5-138 DCA system operation .....................5-140
How to enable/disable the DCA system .....5-143
DCA system limitations .....................5-145DCA driving situations
...................... 5-146
System temporarily unavailable .............5-147
System maintenance ....................... 5-148
Forward Emergency Braking (FEB) with
Pedestrian Detection system ..................5-149
System operation .......................... 5-151
Turning the FEB with Pedestrian
Detection system on/off ...................5-152
FEB with Pedestrian Detection system
limitations ................................. 5-153
System temporarily unavailable .............5-156
System malfunction ........................ 5-157
System maintenance ....................... 5-158
Predictive Forward Collision Warning (PFCW) . . 5-159 PFCW system operation ...................5-161
Turning the PFCW system on/off ..........5-162
PFCW system limitations ...................5-164
System temporarily unavailable .............5-168
System malfunction ........................ 5-169
System maintenance ....................... 5-169
B

reak-in schedule ............................. 5-170
Fuel efficient driving tips .......................5-171
Increasing fuel economy .......................5-172

Intelligent All-Wheel Drive (AWD)
(if so equipped)................................ 5-172
Parking/parking on hills .......................5-175
Power steering ................................ 5-176
Electric power steering type ................5-176
Direct Adaptive Steering® type .............5-176
Park with Easy Steering (if so equipped) .....5-178
Brake system ................................. 5-179
Brake precautions .......................... 5-179
Anti-lock Braking System (ABS) .............5-180
Brake Assist ............................... 5-181
Vehicle Dynamic Control (VDC) system .........5-181
Brake force distribution .....................5-183
Chassis Control ............................... 5-184
Active Trace Control ....................... 5-184
Active Engine Brake ........................ 5-184
Active Ride Control ......................... 5-185
Hill start assist system ......................... 5-186
Front and rear sonar system (if so equipped) ....5-186 System operation
.......................... 5-187
How to enable/disable the sonar system ....5-189
Sonar limitations ........................... 5-189
System temporarily unavailable .............5-190
System maintenance ....................... 5-190
Cold weather driving .......................... 5-191
Freeing a frozen door lock ..................5-191
Antifreeze ................................. 5-191
Battery .................................... 5-191
Draining of coolant water ..................5-191
Tire equipment ............................. 5-191
Special winter equipment ...................5-192
Driving on snow or ice ...................... 5-192
Engine block heater (if so equipped) .........5-192
Active noise cancellation/Active sound
enhancement ................................. 5-193
Active noise cancellation ....................5-193
Active soundenhancement ................. 5-194

CAUTION
∙ Do not use leaded gasoline. Depositsfrom leaded gasoline will seriously reduce
the three-way catalyst’s ability to help
reduce exhaust pollutants.
∙ Keep your engine tuned up. Malfunctions in the ignition, fuel injection, or electrical
systems can cause over rich fuel flow into
the three-way catalyst, causing it to
overheat. Do not keep driving if the en-
gine misfires, or if noticeable loss of per-
formance or other unusual operating
conditions are detected. Have the vehicle
inspected promptly. It is recommended
that you visit an INFINITI retailer for this
service.
∙ Avoid driving with an extremely low fuel level. Running out of fuel could cause the
engine to misfire, damaging the three-
way catalyst.
∙ Do not race the engine while warming it up.
∙ Do not push or tow your vehicle to start the engine.
TIRE PRESSURE MONITORING
SYSTEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure label.
(If your vehicle has tires of a different size
than the size indicated on the vehicle placard
or tire inflation pressure label, you should
determine the proper tire inflation pressure
for those tires.)
As an added safety feature, your vehicle has
been equipped with a Tire Pressure Monitor-
ing System (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly under-inflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check all your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significantly
under-inflated tire causes the tire to overheat
and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and
stopping ability. Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the driv-
er’s responsibility to maintain correct tire
pressure, even if under-inflation has not
reached the level to trigger illumination of the
TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is combined
with the low tire pressure telltale. When the
system detects a malfunction, the telltale will
flash for approximately one minute and then
remain continuously illuminated. This se-
quence will continue upon subsequent vehicle
start-ups as long as the malfunction exists.
When the malfunction indicator is illumi-
nated, the system may not be able to detect
or signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of rea-
sons, including the installation of replace-
ment or alternate tires or wheels on the ve-
hicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunc-
tion telltale after replacing one or more tires
or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels al-
low the TPMS to continue to function prop-
erly.
Starting and driving5-5

∙ Do not grip the inside or spokes of thesteering wheel when driving off-road.
The steering wheel could move suddenly
and injure your hands. Instead drive with
your fingers and thumbs on the outside of
the rim.
∙ Before operating the vehicle, ensure that the driver and all passengers have their
seat belts fastened.
∙ Always drive with the floor mats in place as the floor may become hot.
∙ Lower your speed when encountering strong crosswinds. With a higher center
of gravity, your INFINITI is more affected
by strong side winds. Slower speeds en-
sure better vehicle control.
∙ Do not drive beyond the performance ca- pability of the tires, even with AWD
engaged.
∙ For AWD equipped vehicles, do not at- tempt to raise two wheels off the ground
and shift the transmission to any drive or
reverse position with the engine running.
Doing so may result in drivetrain damage
or unexpected vehicle movement which
could result in serious vehicle damage or
personal injury. ∙ 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 two wheels
are raised off the ground. Make sure you
inform test facility personnel that your
vehicle is equipped with AWD before 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
vehicle damage or personal injury.
∙ When a wheel is off the ground due to an unlevel surface, do not spin the wheel
excessively.
∙ Accelerating quickly, sharp steering ma- neuvers or sudden braking may cause loss
of control.
∙ If at all possible, avoid sharp turning ma- neuvers, particularly at high speeds. Your
INFINITI vehicle has a higher center of
gravity than a passenger car. The vehicle
is not designed for cornering at the same
speeds as passenger cars. Failure to op-
erate this vehicle correctly could result in
loss of control and/or a rollover accident. ∙ Always use tires of the same type, size,
brand, construction (bias, bias-belted, or
radial), and tread pattern on all four
wheels. Install tire chains on the front
wheels when driving on slippery roads
and drive carefully.
∙ Be sure to check the brakes immediately after driving in mud or water. For addi-
tional information, refer to “Brake pre-
cautions” in this section.
∙ Avoid parking your vehicle on steep hills. If you get out of the vehicle and it rolls
forward, backward or sideways, you
could be injured.
∙ Whenever you drive off-road through sand, mud or water as deep as the wheel
hub, more frequent maintenance may be
required. For additional information, re-
fer to “Maintenance under severe oper-
ating conditions” in the “Maintenance
and schedules” section of this manual.
5-12Starting and driving

The LDW system is not designed to warn
under the following conditions:∙ When you operate the lane change signal and change traveling lanes in the direc-
tion of the signal. (The LDW system will
become operable again approximately
2 seconds after the lane change signal is
turned off.)
∙ When the vehicle speed lowers to less than approximately 37 mph (60 km/h).
After the above conditions have finished and
the necessary operating conditions are satis-
fied, the LDW functions will resume.
SYSTEM MAINTENANCE
The lane camera unit1for the LDW system
is located behind the inside mirror. To keep
the proper operation of the LDW system and
prevent a system malfunction, be sure to ob-
serve the following:
∙ Always keep the windshield clean.
∙ Do not attach a sticker (including trans- parent material) or install an accessory
near the camera unit. ∙ Do not place reflective materials, such as
white paper or a mirror, on the instrument
panel. The reflection of sunlight may ad-
versely affect the camera unit’s capability
of detecting the lane markers.
∙ Do not strike or damage the areas around the camera unit. Do not touch the camera
lens or remove the screw located on the
camera unit. If the camera unit is dam-
aged due to an accident, it is recom-
mended that you visit an INFINITI re-
tailer.
LSD3075
Starting and driving5-37

When the interior temperature is reduced, the
system will resume operating automatically.
SYSTEM MAINTENANCE
The lane camera unit1for the LDP system
is located behind the inside mirror. To keep
the proper operation of the LDP system and
prevent a system malfunction, be sure to ob-
serve the following:
∙ Always keep the windshield clean.
∙ Do not attach a sticker (including trans- parent material) or install an accessory
near the camera unit. ∙ Do not place reflective materials, such as
white paper or a mirror, on the instrument
panel. The reflection of sunlight may ad-
versely affect the camera unit’s capability
of detecting the lane markers.
∙ Do not strike or damage the areas around the camera unit. Do not touch the camera
lens or remove the screw located on the
camera unit. If the camera unit is dam-
aged due to an accident, it is recom-
mended that you visit an INFINITI re-
tailer.
LSD3075
Starting and driving5-43