2018 LEXUS NX300h parking sensors

2394-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving performed after remova l and installation
of the 12-volt battery. Perform system ini-
tialization.■
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.
When the hybrid system output restric-
tion control or brak e control operates,
the buzzer sounds and a message is
displayed on the multi-information dis-
play to alert the driver. Depending on the situat ion, output restric-
tion control operates to either limit accel-
eration or restrict output as much as
possible.WARNING■
In order for the system to operate
properly
Make sure to observe the following pre-
cautions regard ing the sensors
( → P.231). 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●
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 obstacles, may cause
the system not operate, or may cause the
system to operate unnecessarily. 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
Display and buzzer for hybrid
system output restriction con-
trol and brake control

240 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
Hybrid system output restriction
control is operating (acceleration
limitation control)
■
Hybrid system output restriction
control is operating (control to
restrict output as much as possible)
■
Brake control is operating ■
The vehicle is stopped by system
operation
■
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.234), or turn the power switch off and
then back on. Furthermore, when the vehi-
cle moves with an obstacle 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.234), when the front or rear sensors
detect an obstacle and brake control is per-
formed, the clearance sonar buzzer also
sounds and a notification of the approxi-
mate distance to the obstacle is provided.Situation Acceleration at a certain
speed or higher is not
possible.
Multi-informa-
tion display/
Head-up dis-
play “Object Detected Accel-
eration Reduced”
PKSB OFF
Indicator Not illuminated
Buzzer ⎯
Situation A stronger than normal
brake operation is neces-
sary
Multi-informa-
tion display/
Head-up dis-
play “BRAKE!”
PKSB OFF
Indicator Not illuminated
Buzzer Short beep
Situation Emergency braking is
necessary
Multi-informa-
tion display/
Head-up dis-
play “BRAKE!”
PKSB OFF
Indicator Not illuminated
Buzzer Short beep Situation The vehicle is stopped
after brake control oper-
ation
Multi-informa-
tion display/
Head-up dis-
play “Switch to Brake”
PKSB OFF
Indicator Illuminated
Buzzer Short beep

2414-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U 4
Driving ■
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 ev ent 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. *
: If equipped
BSM main switch Pressing the switch turns the system on or BSM (Blind Spot Monitor) *
The Blind Spot Monitor uses the
sensors installed behind the rear
bumper. The system is intended to
assist the driver check areas that
are not easily visible. The system
has the following 2 functions:
 The Blind Spot Monitor function Assists the driver in making the decision
when changing lanes
 The Rear Cross Traffic Alert func-
tion Assists the driver when backing up
These functions use the same sen-
sors.
System components
A

246 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U The Rear Cross Traffic Alert function operat es when your vehicle is in reverse. It
can detect other vehicles approaching from th e right or left rear of the vehicle. It
uses radar sensors to alert the driver of the other vehicle’s existence through flash-
ing the BSM outside rear view mirror indicators and sounding a buzzer.
Approaching vehicles
Detection areas ■
Rear Cross Traffic Alert icon dis-
play (if equipped)
When a vehicle approaching from the
right or left at the rear of the vehicle is
detected, the following will be dis-
played on the navigation/multimedia
system screen. 
Lexus parking assist monitor
A vehicle is approaching from the left
or right at the rear of the vehicle 
Panoramic view monitor
A vehicle is approaching from the left
or right at the rear of the vehicle
■
The Rear Cross Traffic Alert function detection areas
The areas that vehicles can be detected in are outlined below.The Rear Cross Traffic Alert function
A
B

248 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U ●
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●
Vehicles that the sensors cannot detect
because of obstacles
●
Instances of the Rear Cross Traffic Alert
function unnecessary detecting a vehicle
and/or object may increase in the follow-
ing situations:
• When a vehicle passes by the side of your
vehicle
• When the parking space faces a street
and vehicles are being driven on the
street • When the distance between your vehicle
and metal objects, such as a guardrail,
wall, sigh, or parked vehicle, which may
reflect electrical waves toward the rear of
the vehicle, is short
WARNING■
Cautions regarding the use of the sys-
tem
The driver is solely responsible for safe
driving. Always drive safely, taking care
to observe your surroundings.
The Rear Cross Traffic Alert function is
only an assist and is not a replacement for
careful driving. Driv er must be careful
when backing up, even when using Rear
Cross Traffic Alert function. The driver’s
own visual confirmation of behind you
and your vehicle is necessary and be sure
there are no pedestrians, other vehicles,
etc., before backing up. Failure to do so
could cause death or serious injury.
According to conditions, the system may
not function correctly. Therefore the
driver’s own visual confirmation of safety
is necessary.