2019 INFINITI QX50 power steering

3 Pre-driving checks and adjustments
Keys.............................................3-2
INFINITI Intelligent Key ........................3-2
INFINITI Vehicle Immobilizer System
keys ..........................................3-4
Doors ............................................3-4
Locking with key ..............................3-5
Locking with inside lock knob Type A
(if so equipped) ................................3-5
Locking with inside lock knob Type B
(if so equipped) ................................3-6
Locking with power door lock switch ...........3-6
Automatic door locks ..........................3-6
Child safety rear door lock .....................3-7
INFINITI Intelligent Key System ...................3-7
Operating range ..............................3-9
Door locks/unlocks precaution ...............3-10
INFINITI Intelligent Key operation .............3-11
How to use the remote keyless entry
function .................................... 3-15
Warning signals ............................. 3-18
Troubleshooting guide ....................... 3-18
Log-in function ............................. 3-20
Remote Engine Start (if so equipped) ............3-21
Remote Engine Start operating range ........3-21 Remote starting the vehicle
..................3-22
Extending engine run time ...................3-22
Canceling a Remote Engine Start ............3-22
Conditions the Remote Engine Start will
not work .................................... 3-23
Hood .......................................... 3-24
Liftgate ........................................ 3-24
Operating the power liftgate ................3-25
Motion-Activated Liftgate
(if so equipped) .............................. 3-27
Power liftgate main switch ..................3-29
Liftgate release ............................. 3-29
Liftgate position setting .....................3-30
Fuel-filler door ................................. 3-31
Opening the fuel-filler door ..................3-31
Fuel-filler cap ............................... 3-31
Steering wheel ................................. 3-34
Manual operation (if so equipped) ............3-34
Automatic operation(if

so equipped) .........3-34
Sun visors ...................................... 3-35
Vanity mirrors ............................... 3-35
Card holder ................................. 3-36
Mirrors ........................................ 3-36

tures. During this period, the climate control
display and buttons will be inoperable until
the ignition switch is turned on. In Remote
Engine Start defrosting mode, the rear win-
dow defroster, heated seat (if so equipped)
and heated steering wheel (if so equipped)
may be activated automatically. In Remote
Engine Start cooling mode, the climate con-
trolled seat (if so equipped) may be activated
automatically.
Voice Recognition logic (if so
equipped)
When the climate control system is on, the
fan speed may be automatically lowered so
that commands are more easily recognized.
Fan speed can be adjusted using the
fan
speed decrease and
increase buttons, if
desired.
MANUAL OPERATION
Fan speed control
Press thefan speed increase andfan speed decrease buttons to manually con-
trol the fan speed. Fan speed can also be
controlled by touching the
orkeys
on the lower display.
Press the AUTO button to return to auto-
matic control of the fan speed.
Temperature control
Press thetemperature control
buttons up or down to set the desired tem-
perature.
The temperature can be set within the fol-
lowing range:
∙ For U.S.: 60 to 90ºF (16 to 32ºC)
∙ For Canada: 64 to 90ºF (18 to 32ºC)
Air recirculation
Press theair recirculation button to re-
circulate interior air inside the vehicle.
The
indicator light on the button will
come on.
The air recirculation cannot be activated
when the air conditioner is in the
front
defrosting mode.
When the outside temperature exceeds 70°F
(21°C), the air conditioning system may de-
fault to air recirculation mode automatically
to reduce overall power consumption. To exit
air recirculation mode, deselect the
air
recirculation button (indicator will turn off) to
enter fresh air mode.
Automatic intake air control
In the AUTO mode, the intake air will be
controlled automatically. To manually control
the intake air, press the
air recirculation
button. To return to the automatic control
mode, press and hold the
air recircula-
tion button for about 2 seconds. The indica-
tor light will flash twice, and then the intake
air will be controlled automatically.
Air flow control
Press thebutton to manually control
air flow. Pressing the button repeatedly will
cycle through the available modes and dis-
play the corresponding icon on the lower dis-
play. Air flow can also be controlled by touch-
ing the
key on the lower display:
— Air flows from center and side
vents.
— Air flows from center and sidevents and foot outlets.
— Air flows mainly from footoutlets.
— Air flows from defroster andfoot outlets.
To turn system off
Press the ON-OFF button.
4-38Monitor, climate, audio, phone and voice recognition systems

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

WARNING
∙ Do not drive beyond the performance ca-pability of the tires. Accelerating quickly,
sharp steering maneuvers or sudden
braking may cause loss of control, even
with Intelligent 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 personal 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 two wheels
are raised off the ground. Make sure that
you inform the test facility personnel
that your vehicle is equipped with AWD
before it is placed on a dynamometer. Us-
ing the wrong test equipment may result
in drivetrain damage or unexpected ve-
hicle movement which could result in se-
rious personal injury or vehicle damage.
CAUTION
∙ Do not operate the engine on a free rollerwhen any of the wheels are raised.
∙ If you use the free roller, rotate four wheels with the same speed without rais-
ing any wheels.
∙ If an AWD warning message is displayed while driving there may be a malfunction
in the AWD system. Reduce the vehicle
speed immediately and have your vehicle
checked as soon as possible. It is recom-
mended that you visit an INFINITI re-
tailer for this service.
∙ 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 en-
gine. 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 dis- played after the above operations, have
your vehicle checked as soon as possible.
It is recommended that you visit an
INFINITI retailer for this service.
5-174Starting and driving

ELECTRIC POWER STEERING
TYPE
WARNING
∙ If the engine is not running or is turned offwhile 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. It is recommended that you visit
an INFINITI retailer for this service.
The power steering system is designed to
provide power assist while driving to operate
the steering wheel with light force.
When the steering wheel is operated repeat-
edly or continuously while parking or driving
at a very low speed, the power assist for the
steering wheel will be reduced. This is to pre-
vent overheating of the power steering sys-
tem and protect it from getting damaged.
While the power assist is reduced, steering
wheel operation will become heavy. When
the temperature of the power steering sys-
tem goes down, the power assist level will return to normal. Avoid repeating such steer-
ing wheel operations that could cause the
power steering system to overheat.
You may hear a sound when the steering
wheel is operated quickly. However, this is
not a malfunction.
If the power steering warning light illumi-
nates while the engine is running, it may indi-
cate the power steering system is not func-
tioning properly and may need servicing.
Have the power steering system checked. It is
recommended that you visit an INFINITI re-
tailer for this service.
When the power steering warning light illu-
minates 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
steering warning light” in the “Instruments
and controls” section of this manual.
DIRECT ADAPTIVE STEERING®
TYPE
WARNING
∙ When the power steering warning light
illuminates with the engine running, the
power assist for the steering will cease
operation. You will still have control of
the vehicle, but the steering will be
harder to operate.
∙ If wheels or tires other than the INFINITI recommended ones are used, Direct
Adaptive Steering® may not operate
properly and the power steering warning
light may illuminate.
∙ Do not modify the vehicle’s suspension parts such as chock absorbers, struts,
springs, stabilizer bars, bushings and
wheels are not INFINITI recommended
for your vehicle or are extremely deterio-
rated, Direct Adaptive Steering may not
operate properly and the power steering
warning light may illuminate.
POWER STEERING
5-176Starting and driving

∙ Do not modify the vehicle’s steering. Ifsteering parts are not INFINITI recom-
mended for your vehicle or are extremely
deteriorated, Direct Adaptive Steering
may not operate properly and the power
steering warning light may illuminate.
∙ If the Vehicle Dynamic Control (VDC) OFF indicator light illuminates, the
power steering warning light may also il-
luminate at the same time. Stop the ve-
hicle in a safe location, turn the engine off
and restart the engine. If the power
steering warning light continues to illu-
minate, have the system checked. It is
recommended that you visit an INFINITI
retailer for this service. For additional in-
formation, refer to “Vehicle Dynamic
Control (VDC) system” in this section.
CAUTION
∙ Do not place the ignition switch in the ON
position while the steering wheel or a tire
is removed.
∙ Do not turn the steering wheel as much as possible while the ignition switch is any
position other than the ON position.
∙ Installing an accessory on the steering wheel, or changing the steering wheel,
may reduce the steering performance. Direct Adaptive Steering is designed to con-
trol the steering force and steering angle ac-
cording to the vehicle speed and amount of
turning of the steering wheel.
The steering characteristic can be selected
using the INFINITI Drive Mode Selector. For
additional information, refer to “INFINITI
Drive Mode Selector” in this section.
If the VDC system is turned off, the setting of
steering becomes Standard mode.
If the power steering warning light illumi-
nates while the engine is running, it may indi-
cate that Direct Adaptive Steering is not
functioning properly and may need servicing.
Have the system checked. It is recommended
that you visit an INFINITI retailer for this
service. For additional information, refer to
“Power steering warning light” in the “Instru-
ments and Controls” section of the manual.
When the power steering warning light illu-
minates with the engine running, the power
assist for the steering will cease operation.
You will still have control of the vehicle. How-
ever, greater steering effort will be needed,
especially in sharp turns and at low speeds.
If Direct Adaptive Steering is malfunctioning,
the steering wheel may turn slightly even
when driving on a straight road. Under the following conditions, the steering
wheel may turn slightly even when driving on
a straight road. This is due to a protection
mechanism for Direct Adaptive Steering. The
steering wheel will return to the normal posi-
tion after the protection mechanism is deac-
tivated.
Condition A:
∙ When the engine is stalled or likely to be stalled
∙ When the steering wheel is held in the full lock position or when the front tire
touches an obstruction
∙ When the battery is discharged
To return the steering wheel to the normal
position, stop the vehicle in a safe location
and stop operating the steering wheel. Then
drive the vehicle for a short period of time.
Condition B: ∙ When the steering wheel is operated re- peatedly or continuously while parking or
driving at a very low speed. In this case,
the power assist for the steering wheel
will be reduced.
To return the steering wheel to the normal
position, stop the vehicle in a safe location
and wait for a period of time, without oper-
Starting and driving5-177

ating the steering wheel, until the tempera-
ture of Direct Adaptive Steering cools down.
Avoid repeated steering wheel operations
that could cause Direct Adaptive Steering to
overheat.
When the vehicle is tested on the 2–wheel
dynamometer, the power steering warning
light may illuminate. To turn off the power
steering warning light, stop the vehicle in a
safe location, turn the engine off, restart the
engine, and then drive the vehicle for a period
of time.
The following conditions do not indicate a
malfunction of Direct Adaptive Steering:∙ You may notice wider steering play when the ignition switch is in the OFF or AUTO
ACC position compared to when it is in
the ON position.
∙ After the engine is started, the steering wheel may turn slightly even when driving
a straight road. To return to the normal
position, drive the vehicle on a straight
road for a period of time.
∙ After the engine is started, the steering wheel may move if the steering wheel
was turned to the fully locked position
while the ignition switch was in the OFF
position. ∙ After the vehicle is tested on the 4–wheel
dynamometer, the steering wheel may
turn slightly even when driving on a
straight road. To return the steering
wheel to the normal position, drive the
vehicle on a straight road for a period of
time.
You may hear a noise under the following
conditions. However, this is not a malfunc-
tion. ∙ When the engine is started or stopped.
∙ When the steering wheel is turned in the full lock position.
PARK WITH EASY STEERING (if so
equipped)
The Park with Easy Steering system provides
lighter steering effort at speeds of approxi-
mately 10 mph (15 km/h) and under.
The Park with Easy Steering system can be
set to on or off through the INFINITI
InTouch™ display. When enabling/disabling
the Park with Easy Steering system, the sys-
tem setting will be retained even if the engine
is restarted. NOTE:
The Park with Easy Steering system will not
activate under the following conditions:
∙ When the Direct Adaptive Steering®
system malfunctions or does not operate
normally (including activating protec-
tion mechanism).
∙ When the ProPILOT Assist system
Steering Assist activates.
When the ProPILOT Assist system malfunc-
tions or does not operate normally, the Park
with Easy Steering system may not be acti-
vated.
When the Park with Easy Steering system is
enabled/disabled, the system may not
activate/deactivate immediately. This is not
a malfunction.
The Park with Easy Steering system cannot
be set to on or off under the following condi-
tions: ∙ Before the engine is started.
∙ When the Direct Adaptive Steering sys-
tem malfunctions or does not operate
normally (including activating the pro-
tection mechanism).
5-178Starting and driving

When the ABS senses that one or more
wheels are close to locking up, the actuator
rapidly applies and releases hydraulic pres-
sure. 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 prop-
erly. However, the pulsation may indicate
that road conditions are hazardous and extra
care is required while driving.
BRAKE ASSIST
When the force applied to the brake pedal
exceeds a certain level, the Brake Assist is
activated generating greater braking force
than a conventional 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-
er’s responsibility to stay alert, drive safely
and be in control of the vehicle at all times.The VDC system uses various sensors to
monitor driver inputs and vehicle motion. Un-
der certain driving conditions, the VDC sys-
tem 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 out- put 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 conditions:
– Understeer (vehicle tends to not fol- low the steered path despite in-
creased steering input)
– Oversteer (vehicle tends to spin due to certain road or driving conditions)
The VDC system can help the driver to main-
tain control of the vehicle, but it cannot pre-
vent loss of vehicle control in all driving situ-
ations. When the VDC system operates, the
indicator in the instrument panel flashes to
note the following:
∙ The road may be slippery or the system may determine some action is required to
help keep the vehicle on the steered path.
∙ You may feel a pulsation in the brake pedal and hear a noise or vibration from
under the hood. This is normal and indi-
cates that the VDC system is working
properly.
∙ Adjust your speed and driving to the road conditions.
For additional information, refer to “Slip indi-
cator light” and ”Vehicle Dynamic Control
(VDC) OFF indicator light” in the ”Instruments
and controls” section of this manual.
If a malfunction occurs in the system,
the
andindicator lights come on
in the instrument panel. The VDC system au-
tomatically turns off when these indicator
lights are on.
The lower display is used to turn off the VDC
system. The
indicator illuminates to in-
dicate the VDC system is off.
VEHICLE DYNAMIC CONTROL (VDC)
SYSTEM
Starting and driving5-181