2020 LEXUS NX300 engine

2454-5. Using the driving support systems
LEXUS NX300 Owners Manual_USA_M78389_en
4
Driving
ON
OFF
Control starts
Collision is likely
DOWN
Collision possibility is very high
UP
“BRAKE!” is displayed in the multi-information display
“Switch to Brake” is displayed in the multi-information display
■Operation starting conditions
When the PKSB OFF indicator is not illumi-
nated or flashing ( P.242, 378) and all of
the following conditions are met, the system
operates.
●Engine output restriction control
• The Parking Support Brake function (for static objects) is on.
• The vehicle speed is 10 mph (15 km/h) or
less.
• There is a static ob ject in the traveling
direction of the vehicle (6 to 13 ft. [2 to 4
m] ahead).
• The system determined that a stronger than-normal brake operation was neces-
sary to avoid a collision.
●Brake control
•Engine output restrict ion control is being
performed.
• The system determined that an emer- gency brake operation was necessary to
avoid a collision.
■Operation ending conditions
In any of the following situations, the system
stops operating.
●Engine output restriction control
• The Parking Support Brake function (for static objects) ha s been turned off
(stopped).
• The collision became avoidable with nor- mal brake operation.
• The static object is no longer in the travel-
ing direction of the vehicle (6 to 13 ft. [2 to 4 m] ahead).
●Brake control
• The Parking Support Brake function (for static objects) has been turned off
(stopped).
• Approximately 2 seconds elapsed after the vehicle was stopped by brake control.
• The brake pedal was depressed after the
vehicle was stopped by brake control.
• The static object is no longer in the travel- ing direction of the vehicle (6 to 13 ft. [2
to 4 m] ahead).
■Sensor detection range
The detection range of the Parking Support
Brake function (for static objects) differs
from the detection range of the clearance
sonar ( P.239).
Therefore, even if the clearance sonar
detects a static object and provides a warn-
ing, the Parking Support Brake function (for
static objects) may not start operating.
■Static objects not detected by the sen-
sors
The following static objects may not be
detected by the sensors.
●Objects such as people, cloth and snow,
that are difficult for sonic waves to reflect
off of. (In particular, people may also not
be detected depending on the type of
clothing they are wearing.)
●Objects not perpendicular with the
ground, objects not at a right angle to the
traveling direction of the vehicle, uneven
E
F
G
H
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2464-5. Using the driving support systems
LEXUS NX300 Owners Manual_USA_M78389_en
objects or waving objects
●Low objects
●Thin objects such as wires, fences, ropes
and signposts
●Objects that are extremely close to the
bumper
■Situations in which the Parking Support
Brake function (for static objects) may
not operate
When driving with the shift lever in N
■Situations when the system may operate
even though there is no possibility of a
collision
In the following situations, the system may
operate even though there is no possibility
of a collision.
●Environmental influence
• The vehicle is driven on a narrow road
• The vehicle is driven on a gravel road or in an area with tall grass
• The vehicle is driven toward a banner or flag, a low-hanging branch or a boom
barrier (such as those used at railroad
crossings, toll gates and parking lots).
• There is a static obje ct on the shoulder of
the road (when the vehicle is driven in a
narrow tunnel, on a narrow bridge or on a
narrow road)
• The vehicle is being parallel parked
• There is a rut or hole in the surface of the road • When the vehicle is driven on a metal
cover (grating), such as those used for
drainage ditches
• The vehicle is driven on a steep slope
• The sensor is covered by water on a flooded road
●Influence from the weather
• Ice, snow, dirt, etc., has adhered to the
sensor (if removed, the system returns to
normal)
• Heavy rain or water strikes the vehicle
• In severe weather such as fog, snow or a
sand storm
●Influence from other sonic waves
• An ultrasonic wave source is nearby, such as the horn or clearance sonar of another
vehicle, a vehicle detector, a motorcycle
engine or the air brake of a large vehicle
• Electronic components (such as a backlit
license plate (especially fluorescent
types), fog lights, a fe nder pole or a wire-
less antenna) are installed near the sen-
sors
●Changes in the vehicle
• The vehicle is tilted a large amount
• The height of the vehicle has drastically changed due to the carried load (the
nose tilts up or down)
• The direction of the sensor has deviated due to a collision or other impact
■Situations in which the system may not
operate normally
In the following situations, the system may
not operate normally.
●Environmental influence
• There is a static object that cannot be detected between the vehicle and
another static object that can be
detected
• A static object such as another vehicle, a motorcycle, a bicycle or a pedestrian cuts
in front of the vehicle or jumps out from
the side.
●Influence from the weather
• The area around the sensor is extremely hot or cold

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Driving
• The vehicle is driven on a gravel road or
in an area with tall grass
• Ice, snow, dirt, etc., has adhered to the sensor (if removed, the system returns to
normal)
• Heavy rain or water strikes the vehicle
• In severe weather such as fog, snow or a sand storm
●Influence from other sonic waves
• An ultrasonic wave source is nearby, such
as the horn or clearance sonar of another
vehicle, a vehicle detector, a motorcycle
engine or the air brake of a large vehicle
• Electronic components (such as a backlit license plate (especially fluorescent
types), fog lights, a fender pole or a wire-
less antenna) are installed near the sen-
sors
●Changes in the vehicle
• The vehicle is tilted a large amount
• The height of the vehicle has drastically changed due to the carried load (the
nose tilts up or down)
• The direction of the sensor has deviated
due to a collision or other impact
■When “Parking Support Brake Unavail-
able” is displayed on the multi-informa-
tion display and the PKSB OFF indicator
flashes
●Ice, snow, dirt, etc., may have adhered to
the sensor. If this occurs, remove the ice,
snow, dirt, etc., from the sensor to return
the system to normal. Also, a warning message may be dis-
played at low temperatures due to ice
forming on the sensor, and the sensor
may not detect static objects. Once the
ice melts, the system will return to normal.
●If this message is
shown even after
removing dirt from the sensor, or shown
when the sensor was not dirty to begin
with, have the vehicle inspected by your
Lexus dealer.
●System initialization may not have been
performed after remova l and installation
of the battery. Perform system initializa-
tion.
■When removing and installing the bat-
tery
The system needs to be initialized.
The system can be initialized by driving the
vehicle straight ahead for 5 seconds or
more at a speed of approximately 22 mph
(35 km/h) or higher.
■When “Parking Support Brake Mal-
function Visit Your Dealer” is displayed
on the multi-information display, the
PKSB OFF indicator flashes and the
buzzer sounds
The system may not be operating properly.
Have the vehicle inspected by your Lexus
dealer.
WARNING
■In order for the system to operate
properly
Make sure to observe the following pre-
cautions regarding the sensors
(  P.239). Failure to observe these pre-
cautions may cause the sensors not to
operate properly, and may result in an
unexpected accident.
●Do not perform work such as modifi-
cation, disassembly or painting
●Only perform replacements using
genuine parts
●Do not subject the area around the
sensors to any impacts

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LEXUS NX300 Owners Manual_USA_M78389_en
When the engine output restriction
control or brake control operates, the
buzzer sounds and a message is dis-
played on the multi-information dis- play, head-up display and
navigation/multimedia system screen
to alert the driver.
Depending on the situation, output restric-
tion control operates to either limit accel-
eration or restrict output as much as
possible.
■Engine output restriction control is
operating (acceleration limitation
control)
■Engine output restriction control is
operating (control to restrict out-
put as much as possible)
WARNING
●Do not damage the sensors, and
always keep them clean
■Handling the suspension
Do not modify the suspension, as
changes to the height or incline of the
vehicle may prevent the sensors from
correctly detecting static objects, may
cause the system not operate, or may
cause the system to operate unnecessar-
ily.
NOTICE
■Preventing unnecessary operation
In the following situations, turn the Park-
ing Support Brake func tion (for static
objects) OFF. The system may operate
even though there is no possibility of a
collision.
●A chassis roller, chassis dynamo, free
roller or similar equipment is being
used for an inspection, etc.
●The vehicle is being loaded onto a ship,
truck or other transport vessel
●The suspension has been lowered or
tires that have a different size than the
genuine tires are equipped
●The height of the vehicle has drastically
changed due to the carried load (the
nose tilts up or down).
●A towing hook is installed
●When using an automatic car wash
Display and buzzer for engine
output restriction control and
brake control
Situation
Acceleration at a certain
speed or higher is not possible.
Multi-informa-tion dis-
play/Head-up display
“Object Detected Accel- eration Reduced”
Naviga-
tion/multime- dia system screen

PKSB OFF IndicatorNot illuminated
Buzzer
Situation
A stronger than normal
brake operation is neces- sary
Multi-informa-tion dis-
play/Head-up display
“BRAKE!”Naviga-
tion/multime- dia system screen

2494-5. Using the driving support systems
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Driving
■Brake control is operating
■The vehicle is stopped by system
operation
*: If the accelerator pedal is not depressed,
“Press Brake Pedal” will be displayed.
■System operation
When the vehicle is stopped by system
operation, the Parking Support Brake func-
tion (for static objects) stops and the PKSB
OFF indicator illuminates.
■System recovery
When the Parking Support Brake function
(for static objects) is stopped by system
operation and you would like to resume
operation, either turn the Parking Support
Brake function (for static objects) ON again
(  P.242), or turn the engine switch off and
then back on. Furthermore, when the vehi-
cle moves with a static object no longer in
the traveling direction of the vehicle, or
when the traveling direction of the vehicle
changes (such as when switching from
moving forward to backing up, and vice
versa), system operation automatically
resumes.
■Clearance sonar buzzer
Regardless of whether the clearance sonar
is on or off, if the Parking Support Brake
function (for static ob jects) is not stopped
(  P.242), when the front or rear sensors
detect a static object and brake control is
performed, the clearance sonar buzzer also
sounds and a notification of the approxi-
mate distance to the static object is pro-
vided.
■In the unlikely event that the Parking
Support Brake function (for static
objects) mistakenly operates at a cross-
ing or elsewhere
Even in the unlikely event that the Parking
Support Brake function (for static objects)
mistakenly operates at a crossing or else-
where, brake control is canceled after
approximately 2 seconds, allowing you to
proceed forward and leave the area. Fur-
thermore, brake control is also canceled
when the brake pedal is depressed.
Depressing the accelerator pedal again
allows you to proceed forward and leave
the area.
PKSB OFF
IndicatorNot illuminated
BuzzerShort beep
SituationEmergency braking is necessary
Multi-informa-tion dis-
play/Head-up display
“BRAKE!”Naviga-
tion/multime- dia system screen
PKSB OFF IndicatorNot illuminated
BuzzerShort beep
Situation
The vehicle is stopped
after brake control oper- ation
Multi-informa-tion dis-
play/Head-up display
“Switch to Brake”*
Naviga-
tion/multime- dia system screen
“Press Brake Pedal”
PKSB OFF IndicatorIlluminated
BuzzerShort beep

2564-5. Using the driving support systems
LEXUS NX300 Owners Manual_USA_M78389_en
■The Rear Cross Traffic Alert function is
operational when
●The BSM main switch is set to on.
●The shift lever is in R.
●Vehicle speed is less than approximately
5 mph (8 km/h).
●Approaching vehicle speed is between
approximately 5 mph (8 km/h) and 18
mph (28 km/h).
■Conditions under which the Rear Cross
Traffic Alert function will not detect a
vehicle
The Rear Cross Traffic Alert function is not
designed to detect the following types of
vehicles and/or objects.
●Small motorcycles, bicycles, pedestrians,
etc.*
●Vehicles approaching from directly
behind*
●Guardrails, walls, signs, parked vehicles
and similar stationary objects*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking
spaces next to your vehicle*
●Vehicles backing up in the parking space
next to your vehicle*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■Conditions under which the Rear Cross
Traffic Alert function may not function
correctly
The Rear Cross Traffic Alert function may
not detect vehicles correctly in the follow-
ing conditions:
●During bad weather su ch as heavy rain,
fog, snow, etc.
●When ice or mud, etc., is attached to the
rear bumper
●When multiple vehicl es approach contin-
uously
●Shallow angle parking
●When a vehicle is approaching at high
speed
●When backing up on a slope with a sharp
change in grade
●When backing out of a sharp angle park-
ing spot
●When parking on a steep incline, such as
hills, a dip in the road, etc.
●Directly after the BSM main switch is set
to on
●Directly after the engine is started with
the BSM main switch on
●Vehicles that the sensors cannot detect
because of obstacles
Approach-
ing vehicleSpeed
Approxi-
mate alert distance
Fast18 mph (28 km/h)65 ft. (20 m)
Slow5 mph (8 km/h)18 ft. (5.5 m)
A

2584-5. Using the driving support systems
LEXUS NX300 Owners Manual_USA_M78389_en
Vehicles without Adaptive Variable
Suspension System
1 Normal mode
For normal driving.
Press the switch to change the driving
mode to Normal mode when selected to
Eco mode or Sport mode.
2Eco mode
In contrast to Normal mode when stepping
on the accelerator pedal, torque genera-
tion becomes slower, air conditioning
operations (heating/cooling) are
restrained, and driving is suited for
improved fuel consumption.
When not in Eco mode and the driving
mode select switch is turned to the left, “Eco” indicator will be shown on the multi-
information display.
3
Sport mode
Assists acceleration response by con-
trolling the engine, transmission and steer-
ing. Suitable for when precise handling is
desirable, for example when driving on
mountain roads.
When not in Sport mode and the driving
mode select switch is turned to the right,
“Sport” indicator will be shown on the
multi-information display.
Vehicles with Adaptive Variable
Suspension System
1 Normal/Custom mode
Press the switch and select Normal mode
or Custom mode. Each time the switch is
pressed, the system changes between
Normal mode and Custom mode. When
Custom mode is selected, the “Custom”
indicator comes on.
When in Eco mode or Sport mode, when
the switch is pressed, the system returns to
Normal mode. Press th e switch to change
the driving mode to Normal mode when
Driving mode select switch
The driving modes can be selected
to suit driving condition.
Selecting a driving mode

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Driving
selected to Eco mode or Sport mode.
Custom mode can be setup on the naviga-
tion system or multimedia system screen.
•Normal mode
Suitable when driving in the city, for good
fuel consumption efficiency, silence, and
drive-ability.
•Custom mode
Driving is possible by setting the desired
function for power train control, chassis
control or air conditioning operations.
2Eco mode
In contrast to Normal mode when stepping
on the accelerator pedal, torque genera-
tion becomes slower, air conditioning
operations (heating/cooling) are
restrained, and driving is suited for
improved fuel consumption.
When not in Eco mode and the driving
mode select switch is turned to the left,
“Eco” indicator will be shown on the multi-
information display.
3Sport mode
•Sport S mode
Assists acceleration response by con-
trolling the engine and transmission. Suit-
able for when powerful acceleration is
desirable.
When not in Sport S mode and the driving
mode select switch is turned to the right,
“Sport S” indicator will be shown on the
multi-information display.
•Sport S+ mode
Helps to ensure super ior vehicle stability
by simultaneously controlling the steering
and suspension in addition to the engine
and transmission. Suitable for sporty driv-
ing.
When in Sport S mode and the driving
mode select switch is turned to the right,
“Sport S+” indicator will be shown on the
multi-information display.
■Operation of the air conditioning sys-
tem in Eco mode
Eco mode controls the heating/cooling
operations and fan speed of the air condi-
tioning system to enhance fuel efficiency. To
improve air conditio ning performance,
adjust the fan speed or turn off Eco mode.
■When canceling Eco mode/Sport mode
●Select another driving mode. Also, Sport
mode will be canceled automatically
when the engine swit ch is turned off.
●Normal mode and Eco mode will not be
canceled automatically until another driv-
ing mode is selected, even if the engine
switch is turned off.
■Operating the ASC (Active Sound
Control)
If the ASC is ON, an electronic sound plays
when the Sport S+ mode is selected.