2018 Lexus LC500h warning

2174-5. Using the driving support systems
LC500_LC500h_OM_OM11405U_(U)
4
Driving
For vehicles sold in Canada
WARNING
■Handling the radar sensor
Blind Spot Monitor se nsors are installed
behind the left and right sides of the rear
bumper respectively. Observe the fol-
lowing to ensure the Blind Spot Monitor
can function correctly.
●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 may
not operate and a warning message
(  P.216) will be displayed. In this situ-
ation, clear off the dirt or snow and
drive the vehicle with the operation
conditions of the BSM function
(  P.219) satisfied for approximately
10 minutes. If the warning message
does not disappear, have the vehicle
inspected by your Lexus dealer.

2184-5. Using the driving support systems
LC500_LC500h_OM_OM11405U_(U)
■Operation of the BSM function
The BSM function uses radar sensors to de tect the following vehicles traveling in
adjacent lanes and advises the driver of th e presence of such vehicles via the indi-
cators 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)
WARNING
●Do not subject a sensor or its sur-
rounding area on the rear bumper to a
strong impact.
If a sensor is moved even slightly off
position, the system may malfunction
and vehicles may not be detected cor-
rectly.
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 scratched or dented, or part of them
has become disconnected.
●Do not disassemb le the sensor.
●Do not attach stickers to the sensor or
surrounding area on the rear bumper.
●Do not modify the sensor or surround-
ing area on the rear bumper.
●Do not paint the rear bumper any
color other than an official Lexus color.
BSM function
A

2204-5. Using the driving support systems
LC500_LC500h_OM_OM11405U_(U)vehicle
*
*
: Depending on the conditions, detection of a vehicle and/or object may occur.
■Conditions under which the BSM func-
tion may not function correctly
●The BSM function may not detect vehi-
cles correctly in the following situations:
• When the sensor is misaligned due to a
strong impact to the sensor or its sur-
rounding 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
with only a small gap between each vehi-
cle
• 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 vehi-
cle 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 vehi- cle remains in the detection area
• When driving up an d down consecutive
steep inclines, 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 driving on the edge of a lane, and the
vehicle in an adjacent lane is far away
from your vehicle
• When an accessory (such as a bicycle
carrier) or towing eyel et is installed to 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 unneces-
sarily 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 sur-
rounding 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 inclines, such as hills, dips in the
road, etc.
• When vehicle lanes are narrow, or when driving on the edge of a lane, and a vehi-
cle traveling in a lane other than the adja-
cent 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 an accessory (such as a bicycle carrier) or towing eyelet is installed to the
rear of the vehicle
WARNING
■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 mirrors or is approaching rap-
idly from behind into a blind spot. Do not
overly rely on the BSM function. As the
function cannot judge if it is safe to
change lanes, over re liance could lead to
an accident resulting in death or serious
injury.
As the system may not function correctly
under certain conditio ns, the driver’s own
visual confirmation of safety is necessary.

2234-5. Using the driving support systems
LC500_LC500h_OM_OM11405U_(U)
4
Driving
• When multiple vehicles are approaching with only a small gap between each vehi-
cle
• When a vehicle is approaching at high speed
• When a towing eyelet is installed to the
rear of the vehicle.
• When backing up on a slope with a sharp change in grade
• When backing out of a shallow angle parking spot
• Immediately after the RCTA function is turned on
• Immediately after the engine is started with the RCTA function on
• When the sensors cannot detect a vehi- cle due to obstructions●Instances of the RCTA function unneces-
sarily detecting a vehicle and/or object
may increase in the following 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, sign, or parked vehicle, which may
reflect electrical waves toward the rear of
the vehicle, is short
• When a towing eyelet is installed to the
rear of the vehicle
WARNING
■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 RCTA function is only a supplemen-
tary function which alerts the driver that a
vehicle is approaching from the right or
left at the rear of the vehicle. As the
RCTA function may not function cor-
rectly under certai n conditions, the
driver’s own visual confirmation of safety
is necessary. Over re liance on this func-
tion may lead to an accident resulting
death or serious injury.

2244-5. Using the driving support systems
LC500_LC500h_OM_OM11405U_(U)
*:If equipped
Multi-information display (P.78)
Displays the status of the active rear wing.
Active rear wing switch
Operates the active rear wing manually.
Indicator
Illuminates when the active rear wing is
raised and turns off when it is retracted.
■The active rear wing can be operated
when
●The engine switch is in IGNITION ON mode .
●The trunk is closed.
●The active rear wing has been activated
in a customized setting.
■Conditions which stop the operation
In the following situat ions operation of the
active rear wing will stop:
●The engine switch is
turned to ACCESSORY mode or off
while the active rear wing is operating.
●The trunk is opened while the active rear
wing is operating.
●The raising operation of the active rear
wing is interrupted by an object, etc.
●The active rear wing is operated in an
unusual manner causing it to stop at an
irregular position.
In such cases, pressing the active rear wing
switch will fully raise the active rear wing.
Or, begin driving the vehicle and the active
rear wing will raise automatically when the
vehicle speed reaches 16 mph (25 km/h).
■When there is a malfunction in the sys-
tem
A warning message will be displayed on the
multi-information display. ( P.344)
■Customization
The active rear wing can be turned on/ off.
(Customizable features: P.391)
Active rear wing*
The vehicle is equipped with an
active rear wing that operates auto-
matically while the vehicle is being
driven. This active rear wing
enhances aerodynamic perfor-
mance, especially at high speeds,
contributing to a more stable ride.
The active rear wing can be con-
trolled manually using a switch.
System components
A
B
C
NOTICE
■To prevent system damage
●Do not apply pressure to the active
rear wing when pushing or pulling the
vehicle.
●Do not lean on the active rear wing.
●Do not attach any accessories or other
objects to the active rear wing.
●Do not modify or disassemble the
active rear wing.
●Do not subject the active rear wing to
severe impact.

2254-5. Using the driving support systems
LC500_LC500h_OM_OM11405U_(U)
4
Driving
The active rear wing will operate auto-
matically at the following speeds
according to the selected driving
mode ( P.208).
(Always observe the legal speed limit
when driving on public roads.)
 When other than Eco drive mode is
selected
Up: Approximately 50 mph (80
km/h)
Down: Approximately 25 mph (40
km/h)
 When Eco drive mode is selected
Up: Approximately 80 mph (130
km/h)
Down: Approximately 25 mph (40
km/h)
Operate the active rear wing switch to
raise/retract the active rear wing man-
ually.
The active rear wing retracts when it is
raised and raises when retracted.
However, the active rear wing does not
respond to switch operations while the
active rear wing is operating.
*: Press and hold the sw itch until the indi-
cator turns off. If the switch is released
while the active rear wing is moving, it
will return to the raised position auto-
matically.
■Restoring automatic operation after the
active rear wing is operated manually
If the active rear wing is operated manually,
automatic operation will resume according
to the vehicle speed.
NOTICE
■To prevent 12-volt battery discharge
Do not operate the active rear wing
repeatedly while the engine tem> is turned off.
Automatic operation
Changing to manual operation
Vehicle speedUp/Down
0 mph (0 km/h)
(vehicle stopped)Press/Press and
hold
*
Approximately 0 – 12 mph (0 – 20 km/h)Operation not pos- sible
Approximately 12 – 75 mph (20 – 120 km/h)
Press/Press
Approximately 75
mph (120 km/h) or moreOperation not pos- sible
WARNING
■When manually operating the active
rear wing
Observe the following precautions
before operating the active rear wing.
Failure to do so may result in death or
serious injury.
●Ensure that the surrounding area is
free of any objects that may come into
contact with or get caught on the
active rear wing.

2264-5. Using the driving support systems
LC500_LC500h_OM_OM11405U_(U)
■ECB (Electronically Controlled
Brake System)
The electronically controlled system
generates braking force correspond-
ing to the brake operation
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the
brakes are applied suddenly, or if the
brakes are applied while driving on a
slippery road surface
■Brake assist
Generates an increased level of brak-
ing force after the brake pedal is
depressed when the system detects a
panic stop situation
■VSC (Vehicle Stability Control)
Helps the driver to control skidding
when swerving sudden ly or turning on
slippery road surfaces
■Secondary Collision Brake
When the airbag sensor detects a colli-
sion, the brakes and brake lights are
automatically controlled to reduce the
WARNING
●If there are people near the active rear
wing, make sure that there is no possi-
bility of their clothing, personal
belongings or body parts getting
caught. Children especially should be
warned not to touch the active rear
wing while it is being operated.
●If there is a risk that an object may
become caught on the active rear
wing during operation, stop operation
immediately.
Driving assist systems
To keep safety and performance,
the following systems operate auto-
matically in response to various
driving situations. Be aware, how-
ever, that these systems are supple-
mentary and should not be relied
upon too heavily when operating
the vehicle.
Summary of the driving assist
systems

2284-5. Using the driving support systems
LC500_LC500h_OM_OM11405U_(U)
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt or snow,
the TRAC system may reduce power from
the engine to the wheels.
Pressing to turn the system off may
make it easier for you to rock the vehicle in
order to free it.
To turn the TRAC system off, quickly press
and release .
“Traction Control Turned Off” will be shown
on the multi-information display.
Press again to turn the system back
on.
■Disabling both TRAC and VSC systems
To turn the TRAC and VSC systems off,
press and hold for more than 3 sec-
onds while the vehicle is stopped.
The VSC OFF indicator light will come on
and the “Traction Cont rol Turned Off” will
be shown on the multi-information display.
*
Press again to turn the systems back
on.
*: Pre-collision brake assist, pre-collision braking and steering control (performed
through cooperative control of PCS [Pre-Collision System] and LDH) (if
equipped) will also be disabled. The pre-
collision system warning light will come
on and a message will be displayed on the
multi-information display. (
P.190)
■When the message is displayed on the
multi-information display showing that
TRAC has been disabled even if the
has not been pressed
TRAC cannot be oper ated. Contact your
Lexus dealer.
■Operating conditions of hill-start assist
control
When the following four conditions are met,
the hill-start assist control will operate:
●The shift position is in a position other
than P or N (when starting off for-
ward/backward on an upward incline).
●The vehicle is stopped.
●The accelerator pedal is not depressed.
●The parking brake is not engaged.
■Automatic system cancelation of hill-
start assist control
The hill-start assist control will turn off in any
of the following situations:
●The shift position is shifted to P or N.
●The accelerator pedal is depressed.
●The parking brake is engaged.
●2 seconds at maximum elapsed after the
brake pedal is released.
■VGRS is disabled when
VGRS may stop operat ing in the following
situations.
In this event, the steering wheel may move
from its straight forward position, but it will
return when the system restarts.
●When the steering wheel is operated for
an extended period of time while the
vehicle is stopped or is moving very
slowly
(on vehicles with LDH, DRS is disabled
together with VGRS)
●When the steering wheel has been held
fully to the left or right