LEXUS RX450h 2016 Owners Manual

3614-5. Using the driving support systems
4
Driving
RX450h_U_OM0E013U WA R N I N G ■
When using the Lexus parking assist monitor system
The parking assist monitor is a supplemental device intended to assist the driver when
backing up. When backing up, be sure to chec k visually behind and all around the vehi-
cle before proceeding.
Observe the following precautions to avoid an accident that could result in death or
serious injuries. ●
Never depend on the parking assist monitor entirely when backing up. The image
and the position of the guide lines displaye d on the screen may differ from the actual
state.
Use caution, just as you would when backing up any vehicle. ●
Be sure to back up slowly, depressing the brake pedal to control vehicle speed. ●
If you seem likely to hit nearby vehicles, obstacles, people or mount the shoulder,
depress the brake pedal to stop the vehicle. ●
The instructions given are only guidelines.
When and how much to turn the steering wheel will vary according to traffic condi-
tions, road surface conditions, vehicle condit ion, etc. when parking. It is necessary to
be fully aware of this before using the parking assist system. ●
When parking, be sure to check that the par king space will accommodate your vehi-
cle before maneuvering into it. ●
Do not use the parking assist monitor in the following cases:
• On icy or slick road surfaces, or in snow
• When using tire chains or emergency tires
• When the back door is not closed completely
• On roads that are not flat or straight, such as curves or slopes. ●
In low temperatures, the screen may darken or the image may become faint. The
image could distort when the vehicle is moving, or you may become unable to see the
image on the screen. Be sure to check dire ct visually and with the mirrors all around
the vehicle before proceeding. ●
If the tire sizes are changed, the position of the guide lines displayed on the screen
may change. ●
The camera uses a special lens. The dist ances between objects and pedestrians that
appear in the image displayed on the screen will differ from the actual distances.
(  P. 3 5 5 ) ●
Estimated course line display mode: If the st eering wheel is straight and the vehicle
width guide lines and the estimated course li nes are not in alignment, have the vehicle
inspected by your Lexus dealer.

362 4-5. Using the driving support systems
RX450h_U_OM0E013U NOTICE ■
How to use the camera ●
The parking assist monitor may not oper ate properly in the following cases.
• If the back of the vehicle is hit, the position and mounting angle of the camera may
change.
• As the camera has a water proof construction, do not detach, disassemble or
modify it. This may cause incorrect operation.
• When cleaning the camera lens, flush the camera with a large quantity of water
and wipe it with a soft and wet cloth. St rongly rubbing the camera lens may cause
the camera lens to be scratched and unable to transmit a clear image.
• Do not allow organic solvent, car wax, window cleaner or glass coat to adhere to
the camera. If this happens, wipe it off as soon as possible.
• If the temperature changes rapidly, such as when hot water is poured on the vehi-
cle in cold weather, the system may not operate normally.
• When washing the vehicle, do not apply intensive bursts of water to the camera or
camera area. Doing so may result in the camera malfunctioning.
• When the camera is used under fluorescen t lights, sodium light or mercury light
etc., the lights and the illuminate d areas may appear to flicker.●
Do not expose the camera to strong impa ct as this could cause a malfunction.
If this happens, have the vehicle inspected by your Lexus dealer as soon as possible.

3634-5. Using the driving support systems
4
Driving
RX450h_U_OM0E013U The Blind Spot Monitor is a system that has 2 functions: ●
The BSM (Blind Spot Monitor) function
Assists the driver in making a decision when changing lanes ●
The RCTA (Rear Cross Traffic Alert) function
Assists the driver when backing up
These functions use same sensors.
BSM (Blind Spot Monitor) Summary of the Blind Spot Monitor

364 4-5. Using the driving support systems
RX450h_U_OM0E013U Multi-information display Turning the BSM function/RCTA function on/off. (  P. 3 6 5 )
The RCTA function is available when the BSM function is on.
Outside rear view mirror indicators BSM function:
When a vehicle is detected in a blind spot of the outside rear view mirrors or
approaching rapidly from behind into a blin d spot, the outside rear view mirror indi-
cator on the detected side will illuminate. If the turn signal lever is operated toward
the detected side, the outside rear view mirror indicator will flash.
RCTA function:
When a vehicle approaching from the right or left at the rear of the vehicle is
detected, both outside rear vi ew mirror indicators will flash.
“BSM” indicator/“RCTA” indicator When the BSM function/RCTA function is turned on, the indicator illuminates.
Monitor screen display (RCTA function only) If a vehicle approaching from the right or left at the rear of the vehicle is detected, the
RCTA icon (  P. 372) for the detected side will be displayed on the monitor screen.
This illustration shows an example of a vehi cle approaching from the left at the rear of
the vehicle.
RCTA buzzer (RCTA function only) If a vehicle approaching from the right or left at the rear of the vehicle is detected, a
buzzer will sound. The buzzer also sounds for approximately 1 second immediately
after the BSM function is operated to turn the system on. 1
2
3
4
5

3654-5. Using the driving support systems
4
Driving
RX450h_U_OM0E013U Press “  ” or “  ” of the meter control switches, select .
Press “  ” or “  ” of the meter control switches, select “BSM”.
Press “  ” or “  ” of the meter control switches, select “BSM” or “RCTA”.■
Outside rear view mirror indicator visibility
In strong sunlight, the outside rear view mirror indicator may be difficult to see.■
Hearing the RCTA buzzer
The RCTA buzzer may be difficult to hear ov er loud noises, such as if the audio system
volume is high. ■
When there is a malfunction in the Blind Spot Monitor
If a system malfunction is de tected due to any of the following, a warning message will be
displayed: (  P. 5 4 3 )●
A sensor is malfunctioning ●
A sensor is dirty or covered with snow or a sticker ●
The outside temperature is extremely high or low ●
Sensor voltage is abnormal ●
A sensor is misaligned ■
Certification for the Blind Spot Monitor 
For vehicles sold in the U.S.A.
FCC ID : OAYSRR3A
This device complies with part 15 of the FC C Rules. Operation is subject to the following
two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including in terference that may
cause undesired operation.
FCC Warning
Changes or modifications not expressly approved by the party responsible for compli-
ance could void the user's authority to operate the equipment. 
For vehicles sold in Canada
Applicable law : Canada 310
This device complies with Industry Canada licence-exempt RSS st andard(s). Operation
is subject to the following two conditions: (1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause
undesired operation of the device.
Frequency bands : 24.05 - 24.25GHz
Output power : less than 20 milliwatts ■
Customization
Some functions can be customized. (P. 376, 607)Turning the BSM function/RCTA function on/off 1
2
3

366 4-5. Using the driving support systems
RX450h_U_OM0E013U WA R N I N G ■
Handling the radar sensor
Blind Spot Monitor sensors are installed be hind the left and right sides of the rear
bumper respectively. Observe the following to ensure the Blind Spot Monitor can
function correctly.
●
Do not subject a sensor or its surrounding area on the rear bumper to a strong
impact.
If a sensor is moved even slightly off po sition, the system may malfunction and vehi-
cles may not be detected correctly.
In the following situations, have your vehicle inspected by your Lexus dealer.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sensor is sc ratched or dented, or part of them has
become disconnected. ●
Do not disassemble the sensor. ●
Do not attach stickers to the sensor or surrounding area on the rear bumper.●
Do not modify the sensor or surr ounding area on the rear bumper.●
Do not paint the rear bumper any color other than an official Lexus color. ●
Keep the sensors and the surrounding areas
on the rear bumper clean at all times.
If a sensor or its surrounding area on the rear
bumper is dirty or covered with snow, the
Blind Spot Monitor ma y not operate and a
warning message (  P. 5 4 3 ) w i l l b e d i s -
played. In this situation, clear off the dirt or
snow and drive the vehicle with the operation
conditions of the BSM function (  P. 3 6 9 )
satisfied for approximately 10 minutes. If the
warning message does not disappear, have
the vehicle inspected by your Lexus dealer.

3674-5. Using the driving support systems
4
Driving
RX450h_U_OM0E013U The BSM function uses radar sensors to detect the following vehicles traveling in
adjacent lanes and advises the driver of the presence of such vehicles via the
indicators on the outside rear view mirrors.
Vehicles that are traveling in areas that are not visible using the outside rear
view mirrors (the blind spots)
Vehicles that are approaching rapidly from behind in areas that are not visible
using the outside rear view mirrors (the blind spots)BSM function
1
2

368 4-5. Using the driving support systems
RX450h_U_OM0E013U The areas that vehicles can be detected in are outlined below.
The range of each detection area is:
Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either side of the vehicle
*
* : The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side of the vehicle
cannot be detected.
Approximately 3.3 ft. (1 m) forward of the rear bumper
Approximately 9.8 ft. (3 m) from the rear bumper
Approximately 9.8 ft. (3 m) to 197 ft. (60 m) from the rear bumper
*
* : The greater the difference in speed between your vehicle and the detected vehicle is,
the farther away the vehicle will be detected, causing th e outside rear view mirror
indicator to illuminate or flash.BSM function detection areas
WA R N I N G ■
Cautions regarding the use of the function
The driver is solely responsible for safe driving. Always drive safely, taking care to
observe your surroundings.
The BSM function is a supplementary function which alerts the driver that a vehicle is in
a blind spot of the outside rear view mirror s or is approaching rapidly from behind into
a blind spot. Do not overly rely on the BSM fu nction. As the function cannot judge if it is
safe to change lanes, over reliance could le ad to an accident resulting in death or seri-
ous injury.
As the system may not function correctly under certain conditions, the driver’s own
visual confirmation of safety is necessary. 1
2
3
4

3694-5. Using the driving support systems
4
Driving
RX450h_U_OM0E013U ■
The BSM function is operational when
The BSM function is operational when all of the following conditions are met: ●
The BSM function is on. ●
The shift lever is in a position other than R. ●
The vehicle speed is greater than approximately 10 mph (16 km/h). ■
The BSM function will detect a vehicle when
The BSM function will detect a vehicle present in the detection area in the following situ-
ations: ●
A vehicle in an adjacent lane overtakes your vehicle. ●
Another vehicle enters the detection area when it changes lanes. ■
Conditions under which the BSM function will not detect a vehicle
The BSM function is not designed to detect the following types of vehicles and/or
objects: ●
Small motorcycles, bicycles, pedestrians, etc.
*●
Vehicles traveling in the opposite direction ●
Guardrails, walls, signs, parked vehi cles and similar stationary objects
*●
Following vehicles that are in the same lane
*●
Vehicles traveling 2 lanes away from your vehicle
*
* : Depending on the conditions, detection of a vehicle and/or object may occur.

370 4-5. Using the driving support systems
RX450h_U_OM0E013U ■
Conditions under which the BSM func tion may not function correctly●
The BSM function may not detect vehicles correctly in the following situations:
• When the sensor is misaligned due to a strong impact to the sensor or its surround-
ing area
• When mud, snow, ice, a sticker, etc. is covering the sensor or surrounding area on
the rear bumper
• When driving on a road surface that is wet with standing water during bad weather,
such as heavy rain, snow, or fog
• When multiple vehicles are approaching wi th only a small gap between each vehicle
• When the distance between your vehicle and a following vehicle is short
• When there is a significant difference in speed between your vehicle and the vehicle
that enters the detection area
• When the difference in speed between your vehicle and another vehicle is changing
• When a vehicle enters a detection area traveling at about the same speed as your
vehicle
• As your vehicle starts from a stop, a vehicle remains in the detection area
• When driving up and down consecutive steep in clines, such as hills, dips in the road,
etc.
• When driving on roads with sharp bends, consecutive curves, or uneven surfaces
• When vehicle lanes are wide, or when drivin g on the edge of a lane, and the vehicle
in an adjacent lane is far away from your vehicle
• When towing a trailer (veh icles with towing package)
• When items such as a bicycle carrier ar e installed on the rear of the vehicle
• When there is a significant difference in height between your vehicle and the vehicle
that enters the detection area
• Immediately after the BSM function is turned on ●
Instances of the BSM function unnecessarily detecting a vehicle and/or object may
increase in the following situations:
• When the sensor is misaligned due to a strong impact to the sensor or its surround-
ing area
• When the distance between your vehicle and a guardrail, wall, etc. that enters the
detection area is short
• When driving up and down consecutive steep in clines, such as hills, dips in the road,
etc.
• When vehicle lanes are narrow, or when driving on the edge of a lane, and a vehicle
traveling in a lane other than the ad jacent lanes enters the detection area
• When driving on roads with sharp bends, consecutive curves, or uneven surfaces
• When the tires are slipping or spinning
• When the distance between your vehicle and a following vehicle is short
• When a bicycle carrier or other accessory is installed to the rear of the vehicle
• When towing a trailer (veh icles with towing package)