warning light lexus LC500 2018 Workshop Manual

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4-5. Using the driving support systems
Driving
• When the Lexus parking assist-sensor is turned off once and turned on again• When the engine switch
is turned off once and turned to IGNI- TION ON mode again
■If “Clean Parking Assist Sensor” is dis-played on the multi-information display
A sensor may be dirty or covered with snow or ice. In such cases, if it is removed from
the sensor, the system should return to nor- mal.
Also, due to the sensor being frozen at low temperatures, a malfunction display may appear or an obstacle may not be detected.
If the sensor thaws out, the system should return to normal.
■If “Parking Assist Malfunction” or “Park-ing Assist Malfunction Visit Your
Dealer” is displayed on the multi-infor- mation display
There is a malfunction and the device may not be working properly.
Have the vehicle inspected by any autho- rized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■Sensor detection information
●The sensor’s detection areas are limited
to the areas around the vehicle’s front and rear bumpers.
●Certain vehicle conditions and the sur-rounding environment may affect the ability of the sensor to correctly detect
obstacles. Particular instances where this may occur are listed below.• There is dirt, snow or ice on the sensor.
(Wiping the sensors will resolve this problem.)• The sensor is frozen. (Thawing the area
will resolve this problem.)
In especially cold weather, if a sensor is fro-
zen the screen may show an abnormal dis-
play, or obstacles may not be detected.
• The sensor is covered in any way.
• The vehicle is leaning considerably to one side.• On an extremely bumpy road, on an
incline, on grav el, or on grass. • The vicinity of the vehicle is noisy due to
vehicle horns, motorcycle engines, air brakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensor in the vicinity.• The sensor is splashed with water or
heavy rain. • The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed. • The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is not detected.• If obstacles draw too close to the sensor.
• A non-genuine Lexus suspension (low- ered suspension etc.) is installed.• People may not be detected if they are
wearing certain types of clothing.
In addition to the examples above, there are
instances in which, because of their shape,
signs and other objects may be judged by
the sensor to be closer than they are.
●The shape of the obstacle may prevent the sensor from detecting it. Pay particu-
lar attention to the following obstacles: • Wires, fences, ropes, etc.• Cotton, snow and other materials that
absorb sound waves • Sharply-angled objects•Low obstacles
• Tall obstacles with upper sections pro- jecting outwards in the direction of your vehicle
●The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection distance may shorten, or detection may be impos-
sible. • Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obstacle detection and display. Even at slow speeds, there is a possibility that the
obstacle will come within the sensor’s detection areas before the display is shown and the warning beep sounds.

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4-5. Using the driving support systems
Driving
WARNING
■Handling the radar sensor
Blind Spot Monitor sensors 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.249) 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.255) satisfied for approximately
10 minutes. If the warning message does not disappear, have the vehicle inspected by any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
●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 any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
• 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 disassemble 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.

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4-5. Using the driving support systems
Press the switch again to turn the sys-
tems back on.*: On vehicles with PCS (Pre-Collision Sys-
tem), PCS will also be disabled (only Pre-
Collision warning is available). The PCS
warning light will come on and a message
will be displayed on the multi-information
display. ( P.217)
■When the message is displayed on the multi-information display showing that
TRC has been disabled even if the
switch has not been pressed
TRC cannot be operated. Contact any
authorized Lexus retailer or Lexus autho- rized repairer, or any reliable repairer.
■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 operating 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 dis-
abled together with VGRS)
●When the steering wheel has been held
fully to the left or right
The center position of the steering wheel
may change when VGRS is disabled. How- ever, the position will return to normal after VGRS is reactivated.
■When the 12-volt battery is discon-
nected (vehicles with VGRS)
The steering wheel may move from its
straight forward position, but this will be corrected automatically when driving.
■Sounds and vibrations caused by the ABS, brake assist, TRC, VSC, hill-start
assist control and VGRS systems
●A sound may be heard from the engine
compartment when the brake pedal is depressed repeatedly, when the engine is started or just after the
vehicle begins to move. This sound does not indicate that a malfunction has occurred in any of these systems.
●Any of the following conditions may
occur when the above systems are oper- ating. None of these indicates that a mal-function has occurred.
• Vibrations may be felt through the vehicle body and steering.• A motor sound may be heard after the
vehicle comes to a stop.
■ECB operating sound
ECB operating sound may be heard in the
following cases, but it does not indicate that a malfunction has occurred.
●Operating sound heard from the engine compartment when the brake pedal is operated.
●Motor sound of the brake system heard from the front part of the vehicle when
the driver’s door is opened.
●Operating sound heard from the engine
compartment when one or two minutes passed after the stop of the engine .

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4-5. Using the driving support systems
WARNING
■Stopping distance when the ABS is operating may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always main-
tain a safe distance from the vehicle in front of you, especially in the following situations:
●When driving on dirt, gravel or snow-
covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRC/VSC may not operate effec-tively when
Directional control and power may not be achievable while driving on slippery
road surfaces, even if the TRC/VSC sys- tem is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
■Hill- start assist control does not operate effectively when
●Do not overly rely on hill-start assist control. Hill-start assist control may
not operate effectively on steep inclines and roads covered with ice.
●Unlike the parking brake, hill-start assist control is not intended to hold
the vehicle stationary for an extended period of time. Do not attempt to use hill-start assist control to hold the vehi-
cle on an incline, as doing so may lead to an accident.
■When the TRC/VSC/ABS is acti-vated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.
■When the TRC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As
these are the systems to help ensure vehicle stability and dr iving force, do not turn the TRC/VSC systems off unless
necessary.
■Secondary Collision Brake
Do not overly rely on the Secondary Col-
lision Brake. This system is designed to help reduce the possibility of further damage due to a secondary collision,
however, that effect changes according to various conditions. Overly relying on the system may result in death or serious
injury.
■Replacing tires
Make sure that all tires are of the speci-
fied size, brand, tread pattern and total load capacity. In addition, make sure that the tires are inflated to the recom-
mended tire inflation pressure level.
The ABS, TRC and VSC systems will not
function correctly if different tires are installed on the vehicle.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspension will affect the driving assist systems, and may cause a
system to malfunction.

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4-6. Driving tips
Perform the following according to the
driving conditions:
 Do not try to forcibly open a window
or move a wiper that is frozen. Pour
warm water over the frozen area to
melt the ice. Wipe away the water
immediately to prevent it from
freezing.
 When the outside door handle is
frozen, unlock the doors using the
wireless remote control. If the out-
side door handles remain retracted
and do not move even if the doors
are unlocked using the wireless
remote control, pour warm water
over the frozen area to melt the ice
and wipe away the water immedi-
ately to prevent it from freezing. The
outside door handle may not retract
due to ice, however, the outside
door handle will return to the nor-
mal position after the ice melts.
 To ensure proper operation of the
climate control system fan, remove
any snow that has accumulated on
the air inlet vents in front of the
windshield.
 Check for and remove any excess
ice or snow that may have accumu-
lated on the exterior lights, vehicle’s
roof, chassis, around the tires or on
the brakes.
 Remove any snow or mud from the
bottom of your shoes before getting
in the vehicle.
■To protect windshield wipers
 P.198
Accelerate the vehicle slowly, keep a
safe distance between you and the
vehicle ahead, and drive at a reduced
speed suitable to road conditions.
Park the vehicle and shift the shift posi-
tion to P without setting the parking
brake. The parking brake may freeze
up, preventing it from being released. If
the vehicle is parked without setting
the parking brake, make sure to block
the wheels.
Failure to do so may be dangerous
because it may cause the vehicle to
move unexpectedly, possibly leading to
an accident.
NOTICE
■Repairing or replacing snow tires
Request repairs or re placement of snow
tires from any authorized Lexus retailer or Lexus authorized repairer, or any reli-able repairer.
This is because the removal and attach- ment of snow tires affects the operation
of the tire pressure warning valves and transmitters.
Before driving the vehicle
When driving the vehicle
When parking the vehicle

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5-3. Using the air conditioning system
Interior features
mode operation can be customized.
Each time is selected, the fan speed
setting mode changes as follows.
“NORMAL”  “ECO”  “FAST” 
“NORMAL”
■Pollen removal mode
Outside air mode switches to
(recirculated air) mode. Pollen is removed
from the air and the air flows to the upper
part of the body.
Usually the system will automatically turn
off after approximately 1 to 3 minutes.
In order to prevent the windshield from fog-
ging up when the outside air is cold, the
dehumidification function may operate or
the outside/recirculated air mode may not
switch to (recirculated air) mode.
Pollen is filtered even if the pollen removal
mode is turned off.
■nanoe™ system
This vehicle incorporates a biocidal prod-
uct.
Ionised air generated by a device incorpo-
rated in the vehicle purifies the air in the
cabin by suppressing bacteria.
Active substance: Free radicals generated
in situ from ambient air or water
nanoe™ helps to provide purified air by
emitting electrically charged water parti-
cles through the front center vent on the
driver’s side
*.
●When the fan is turned on and nanoe™
on the option control screen is selected,
the nanoe™ system is activated.
●When the fan is operated in the following
conditions, system performance will be
maximized. If the following conditions are
not met, performance will be limited.
• The , or air outlets are being used.
• The front center vent on driver’s side is open.
●When nanoe™ is generated, a small
amount of ozone is emitted and may be
faintly smelled in some situations. How-
ever, this is approximately the same as the
amount that already exists in nature, such
as in forests, and it has no affect on the
human body.
●A slight noise may be heard during oper-
ation. This is not a malfunction.
*: According to temperature and humidity
conditions, fan speed and direction of the
air flow, the nanoe™ system may not
operate at full capacity.
1 Press the automatic mode switch or
select “AUTO” on the sub function
menu. ( P.283)
WARNING
■To prevent burns (vehicles with wind-
shield wiper de-icer)
Do not touch the glass at lower part of
the windshield or to the side of the front
pillars when the windshield wiper de-icer
is on.
■nanoe™ generator
Do not disassemble or repair the genera-
tor because it contains high voltage
parts. Contact any authorized Lexus
retailer or Lexus authorized repairer, or
any reliable repairer if the generator
needs repair.
NOTICE
■To prevent damage to the nanoe™
Do not insert anything into the driver’s
side vent, attach anything to it, or use
sprays around the driver’s side vent.
These things may cause the generator
not to work properly.
Using automatic mode

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5-5. Using the storage features
Interior features
5-5.Using the storage features
Glove box (P.293)
Auxiliary net
Door pockets
Console box/auxiliary box
( P.294)
Cup holder ( P.294)
1 Open (press the glove box opener)
2 Unlock with the mechanical key
3 Lock with the mechanical key
■Glove box light
The glove box light turns on when the tail lights are on.
■Trunk opener main switch
 P.122
■If the 12-volt battery is discharged
The glove box cannot be opened as usual.
Refer to P.393 to open the glove box.
List of stor age features
Location of the storage features
WARNING
■Items that should not be left in the
vehicle
Do not leave glasses, lighters or spray cans in the storage spaces, as this may cause the following when cabin tempera-
ture becomes high:
●Glasses may be deformed by heat or cracked if they come into contact with other stored items.
A
B
C
D
E
●Lighters or spray cans may explode. If they come into contact with other
stored items, the lighter may catch fire or the spray can may release gas, causing a fire hazard.
■When the storage compartments are
not in use
When driving or when the storage com- partments are not in use, keep the lids closed.
In the event of sudden braking or sudden swerving, an accident may occur due to an occupant being struck by an open lid
or the items stored inside.
Glove box

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5-5. Using the storage features
1Using with half-open: Slide the
armrest as far back while pressing
the button.
Press the button to close.
2 Using with fully open: Lift the arm-
rest while pulling the knob.
■Console box light
The console box light turns on when the tail lights are on.
■Using the auxiliary box
Do not place cups, beverage cans, etc. in the auxiliary box.
To open, press down and release the
cup holder lid.
Console box/auxiliary box
WARNING
■When closing the console box
Take care to prevent your fingers etc. from being caught.
NOTICE
■To prevent damage to the console box
●Do not pull the knob while sliding the armrest.
●Do not apply excessive force to the armrest.
Cup holder
WARNING
■Items unsuitable for the cup holder
Do not place anything other than a cup
or beverage can in the cup holder. Even when the lid is closed, items must not be stored in the cup holder.
Other items may be thrown out of the holder in the event of an accident or sud-den braking, causing injury. If possible,
cover hot drinks to prevent burns.
NOTICE
■To prevent damage to the cup holder and air conditioning control switches
●Do not apply excessive force to the cup holder.
●Take care when placing a tall bottle in the cup holder. When the bottle is
taken out or the brakes are suddenly applied, the bottle may hit the air con-ditioning control switches, causing
damage to the switches or parts of the air conditioning system.

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5-6. Using the other interior features
enabled.
 If the green indicator light flashes, an
emergency call is being made
(either automatically or manually).
 If no indicator lights illuminate, the
system is not enabled.
 If the red indicator light illuminates
any time other than immediately
after the engine switch switch> is turned IGNITION ON
mode , the system may
be malfunctioning or the backup
battery may be depleted. Contact
any authorized Lexus retailer or
Lexus authorized repairer, or any
reliable repairer.
The service life of the backup battery is 3
years or more.
WARNING
■When the Emergency Call may not be made
●Any of the followings may occur. In such cases, report to the Public Safety
Answering Point (PSAP) by other means such as nearby public phones.
• It may sometimes be difficult to con- nect to the Public Safety Answering Point (PSAP) even in the reception
area of the cellular phone due to the reception level, or if the line is busy.In such cases, you may not be able to
connect to the Public Safety Answer- ing Point (PSAP) and thus will not be able to make emergency calls and
report to the emergency departments even though the system tries to con-nect to the Public Safety Answering
Point (PSAP).
• When the vehicle is out of the cellular
phone service area, the Emergency Call cannot be made.
• When any related equipment (such as the “SOS” button panel, indicator lights, microphone, speaker, DCM,
antenna, or any wires connecting the equipment.) has an abnormality, is damaged or broken, the Emergency
Call cannot be made.
• During the Emergency Call, the sys-
tem makes repeated attempts to con- nect to the Public Safety Answering Point (PSAP). However, if it cannot
connect to the Public Safety Answer- ing Point (PSAP) due to poor radio wave reception, the system may not be
able to connect to the cellular network and the call may finish without con-necting. The red indicator light will
blink for approximately 30 seconds to indicate this disconnection.
• This device may not function if a shock is applied to it.

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6-1. Maintenance and care
WARNING
●If you directly touch the raindrop sen- sor body or if something bumps into the raindrop sensor
■Precautions regarding the exhaust
pipes and rear bumper diffusers
As exhaust gases cause the exhaust
pipes and rear bumper diffusers to become quite hot, do not touch the exhaust pipes and rear bumper diffusers
while the engine is running or immediately after the engine is turned off.
When washing the vehicle, be careful not to touch the exhaust pipes and rear
bumper diffusers until they have cooled sufficiently, as touching hot exhaust pipes and rear bumper diffusers can cause
burns.
■Precaution regarding the rear bumper with Blind Spot Monitor (if equipped)
If the paint of the rear bumper is chipped or scratched, the system may malfunc-
tion. If this occurs, consult any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
NOTICE
■Application of coatings to the vehicle body (vehicles with CFRP parts)
Do not apply any kind of coating to the vehicle body as doing so may damage
the paint or reduce its durability.
■To prevent paint deterioration and corrosion on the body and compo-
nents (aluminum wheels etc.)
●Wash the vehicle immediately in the
following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar, pollen or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the paint surface
• After driving in an area contaminated with soot, oily smoke, mine dust, iron
powder or chemical substances
• If the vehicle becomes heavily soiled
with dust or mud
• If liquids such as benzene and gasoline
are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
●To prevent the wheels from corroding, remove any dirt and store in a place
with low humidity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic substances or scrub with a hard brush.
This may damage the surfaces of the lights.
●Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
■When using an automatic car wash
Set the wiper switch to the off position.
If the wiper switch is in AUTO, the wipers may operate and the wiper blades may be damaged.