2019 INFINITI QX50 Display speed

The DCA system brakes and moves the ac-
celerator pedal upward according to the dis-
tance from and the relative speed of the ve-
hicle ahead to help assist the driver in
maintaining a following distance. The system
will decelerate as necessary and if the vehicle
ahead comes to a stop, the vehicle deceler-
ates to a standstill. However, the DCA sys-
tem can only apply up to approximately 40%
of the vehicle’s total braking power. If a ve-
hicle moves into the traveling lane ahead or if
a vehicle traveling ahead rapidly decelerates,
the distance between vehicles may become
closer because the DCA system cannot de-
celerate the vehicle quickly enough. If this
occurs, the DCA system will sound a warning
chime and blink the system display to notify
the driver to take necessary action. For addi-
tional information, refer to “Approach warn-
ing” in this section.The DCA system helps assist the driver to
keep a following distance to the vehicle
ahead by braking and moving the accelerator
pedal upward in the normal driving condition.
When a vehicle is detected ahead:
The vehicle ahead detection indicator comes
on.When vehicle approaches a vehicle ahead:
∙ If the driver’s foot is not on the accelera- tor pedal, the system activates the brakes
to decelerate smoothly as necessary. If
the vehicle ahead comes to a stop, the
vehicle decelerates to a standstill within
the limitations of the system.
∙ If the driver’s foot is on the accelerator pedal, the system moves the accelerator
pedal upward to assist the driver to re-
lease the accelerator pedal.
When brake operation by driver is required:
The system alerts the driver by a warning
chime and blinking the vehicle ahead detec-
tion indicator. If the driver’s foot is on the
accelerator pedal after the warning, the sys-
tem moves the accelerator pedal upward to
assist the driver to switch to the brake pedal.
NOTE: ∙ The stop lights of the vehicle come on
when braking is performed by the DCA
system.
∙ When the brake operates, a noise may be
heard. This is not a malfunction.
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Starting and driving5-141

Overriding the system:
The following driver’s operations override the
system operation:∙ When the driver depresses the accelera- tor pedal even further while the system is
moving the accelerator pedal upward,
the DCA system control of the accelera-
tor pedal is canceled.
∙ When the driver’s foot is on the accelera- tor pedal, the brake control by the system
is not operated.
∙ When the driver’s foot is on the brake pedal, neither the brake control nor the
alert by the system operates.
∙ When the ICC system is set, the DCA system will be canceled.Approach warning
If your vehicle comes closer to the vehicle
ahead due to rapid deceleration of that ve-
hicle 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 dis-
tance 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 increasing
∙ 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 the radar
sensor detects objects on the side of the
road. This may cause the DCA system to de-
celerate or accelerate the vehicle. The radar
sensor may detect these objects when the
vehicle is driven on winding roads, narrow
roads, hilly roads or when entering or exiting
a curve. In these cases you will have to manu-
ally control the proper distance ahead of
your vehicle.
Also, the sensor sensitivity can be affected by
vehicle operation (steering maneuver or driv-
ing position in the lane) or traffic or vehicle
condition (for example, if a vehicle is being
driven with some damage).
5-142Starting and driving

HOW TO ENABLE/DISABLE THE
DCA SYSTEM
To turn on the DCA system, push the dynamic
driver assistance switch (for models without
ProPILOT Assist) or the ProPILOT Assist
switch (for models with ProPILOT Assist) on
the steering wheel after starting the engine.
The DCA system switch indicator light in the
vehicle information display will illuminate.
Push the dynamic driver assistance switch
(for models without ProPILOT Assist) or the
ProPILOT Assist switch (for models with
ProPILOT Assist) on the steering wheel 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 (for
models without ProPILOT Assist) or the Pro-
PILOT Assist switch (for models with ProPI-
LOT Assist) on the steering wheel is used for
the LDP, DCA and BSI systems. When the
dynamic driver assistance switch (for models
without ProPILOT Assist) or the ProPILOT
Assist switch (for models with ProPILOT As-
sist) on the steering wheel is pushed, the LDP
system will also turn on or off simultaneously.
The DCA system can be individually set to on
LSD3144
Starting and driving5-143

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 (for models
without ProPILOT Assist) or the ProPILOT
Assist switch (for models with ProPILOT As-
sist) on the steering wheel is pushed to on.
For additional information, 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 lower
display.1. Press the MENU button below the lower display screen.
2. Select “Driver Assistance.”
3. Select “Forward Assist.”
4. Select “ON” to turn the “Distance Con- trol Assist” system on or off.
If the LDP, BSI and DCA systems are set to
off in the lower display and the dynamic
driver assistance switch (for models without
ProPILOT Assist) or the ProPILOT Assist
switch (for models with ProPILOT Assist) on
the steering wheel is pushed, the LDP indica-
tor light, BSI ON indicator light, and the DCA
system switch indicator light will blink for
approximately 2 seconds. For additional information on LDP and BSI,
refer to “Lane Departure Prevention (LDP)”
and “Blind Spot Intervention® (BSI)” in this
section.
DCA system display and indicators
The display is located between the speedom-
eter and tachometer.
1. DCA system switch indicator (green): Indicates that the dynamic driver assis-
tance switch (for models without ProPI-
LOT Assist) or the ProPILOT Assist
switch (for models with ProPILOT As-
sist) on the steering wheel is on.
2. DCA system warning light (orange): The light comes on if there is a malfunc-
tion in the DCA system.
LSD3034
5-144Starting and driving

If the AWD error warning message is dis-
played, there may be a malfunction in the
Intelligent AWD system. Reduce vehicle
speed and have your vehicle checked as soon
as possible. It is recommended that you visit
an INFINITI retailer for this service.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 con-
tinue driving.The tire size message may be displayed if
there is a large difference between the diam-
eters 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 as soon as
possible. It is recommended that you visit an
INFINITI retailer for this service.
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Starting and driving5-173

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

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
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