2018 Lexus LC500 power steering

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4-5. Using the driving support systems
Driving
change the set unit of the meter. Adjust the set unit of the meter to the speed unit of signs in the current location. ( P.423)
■Turning the system on/off
1 Select on of the
multi-information display ( P.92)
2 Press “OK” on the steering wheel.
■Speed limit sign display
If the engine switch

was last turned off while a speed limit sign was dis-played on the multi-information display, the
same sign displays again when the engine switch is turned to IGNI-TION ON mode .
■Customization
Setting (e.g. speeding warning threshold) can be changed.
(Customizable feature: P.423)
*:If equipped
■Meter display
Display
Set speed
Indicators
Dynamic radar cruise con-
trol with full-speed range*
In vehicle-to-vehicle distance con-
trol mode, the vehicle automati-
cally accelerates, decelerates and
stops to match the speed changes
of the preceding vehicle even if the
accelerator pedal is not depressed.
In constant speed control mode,
the vehicle runs at a fixed speed.
Use the dynamic radar cruise con-
trol with full-speed range on free-
ways and highways.
 Vehicle-to-vehicle distance con-
trol mode ( P.232)
 Constant speed control mode
( P.236)
System components
A
B
C

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4-5. Using the driving support systems
Driving
steering feel, suspension control and
VDIM control, making it suitable for pow-
erful sporty driving.
When in SPORT S mode, if the driving
mode select switch is turned backward, the
“Sport S+” indicator comes on.
■Operation of the air conditioning sys- tem in Eco drive mode
Eco drive mode controls the heating/cool- ing operations and fan speed of the air con-ditioning system to enhance fuel efficiency.
To improve air conditioning performance, perform the following operations:
●Adjust the fan speed ( P.281, 283)
●Turn off Eco drive mode
■Automatic deactivation of sport mode
and custom mode
If the engine switch is
turned off after driving in sport mode or custom mode, the drive mode will be changed to normal mode.
■Driving mode pop-up display
When the driving mode is changed, the selected driving mode will be temporarily
displayed on the side display. ( P.277)
For custom mode, select “Setting” on the
display to customize the driving mode.
■Types of sensors
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
■Display
When the sensors detect an obstacle, a
graphic is shown on the multi-informa-
tion display, head-up display and Cen-
ter Display depending on the position
and distance to the obstacle.
 Multi-information display and head-
Lexus parking assist-sensor
The distance from your vehicle to
nearby obstacles when parallel
parking or maneuvering into a
garage is measured by the sensors
and communicated via the multi-
information display, head-up dis-
play (if equipped), Center Display
and a buzzer. Always check the sur-
rounding area when using this sys-
tem.
System components
A
B
C
D

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4-5. Using the driving support systems
■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 suddenly or turning on
slippery road surfaces
■Secondary Collision Brake (if
equipped)
When the airbag sensor detects a colli-
sion, the brakes and brake lights are
automatically controlled to reduce the
vehicle speed and that helps reduce
the possibility of further damage due to
a secondary collision.
■TRC (Traction Control)
Helps to maintain drive power and pre-
vent the drive wheels from spinning
when starting the vehicle or accelerat-
ing on slippery roads
■Hill-start assist control
Helps to reduce the backward move-
ment of the vehicle when starting on an
uphill
■VGRS (Variable Gear Ratio Steer-
ing) (if equipped)
Adjusts the front wheel turning angle in
accordance with the vehicle speed and
steering wheel movement
■DRS (Dynamic Rear Steering) (if
equipped)
Contributes to the turning characteris-
tics and responsiveness of the vehicle
by slightly adjusting the rear wheel
angle of the vehicle in accordance with
steering wheel movement.
■EPS (Electric Power Steering)
Employs an electric motor to reduce
the amount of effort needed to turn the
steering wheel
■AVS (Adaptive Variable Suspen-
sion System)
By independently controlling the
damping force of the shock absorbers
for each of the 4 wheels according to
Driving assist systems
To keep driving safety and perfor-
mance, the following systems oper-
ate automatically in response to
various driving situations. Be aware,
however, that these systems are
supplementary and should not be
relied upon too heavily when oper-
ating the vehicle.
Summary of the driving assist
systems

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4-5. Using the driving support systems
Driving
the road and driving conditions, this
system helps riding comfort with supe-
rior vehicle stability, and helps good
vehicle posture
Also, the damping force changes
depending on the selected driving
mode. ( P.242)
■LDH (Lexus Dynamic Handling
system) (if equipped)
Provides integrated control of the
VGRS, DRS and EPS. Contributes to
turning characteristics at low speeds,
responsiveness at medium speeds and
safety at high speeds by controlling the
steering angle of the front and rear
wheels in accordance with the steering
wheel operation and vehicle speed.
■VDIM (Vehicle Dynamics Inte-
grated Management)
Provides integrated control of the
ABS, brake assist, TRC, VSC, hill-start
assist control, EPS, VGRS (if
equipped) and DRS (if equipped) sys-
tems
Helps to maintain vehicle stability when
swerving on slippery road surfaces by
controlling the brakes, engine system> output, steering assist (if
equipped), and steering ratio (if
equipped)
■Emergency brake signal
When the brakes are applied suddenly,
the stop lights automatically flash to
alert the vehicle behind
■When the TRC/VSC/ABS systems are operating
The slip indicator light will flash while the TRC/VSC/ABS systems are operating.
■Disabling the TRC system
If the vehicle gets stuck in mud, dirt or snow,
the TRC system may reduce power from the engine to the wheels.
Pressing the switch to turn the sys-
tem off may make it easier for you to rock
the vehicle in order to free it.
To turn the TRC system off, quickly press
and release the switch.
The “Traction Control Turned Off” will be
shown on the multi-information display.
Press the switch again to turn the sys-
tem back on.
■Disabling both TRC and VSC systems
To turn the TRC and VSC systems off, press
and hold the switch for more than 3
seconds 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.*

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4-5. Using the driving support systems
Driving
■EPS, VGRS and DRS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be heard. This does not indicate a malfunction.
■Automatic reactivation of TRC and VSC systems
After turning the TRC and VSC systems off, the systems will be automatically re-
enabled in the following situations:
●When the engine switch
is turned off
●If only the TRC system is turned off, the
TRC will turn on when vehicle speed increases
If both the TRC and VSC systems are turned off, automatic re-enabling will not occur when vehicle speed increases.
■Secondary Collision Brake operating
conditions
The vehicle speed is approximately 10 km/h
(6 mph) or more and the airbag sensor detects a collision. (The Secondary Colli-sion Brake will not operate when the vehicle
speed is below approximately 10 km/h [6 mph].)
■Secondary Collision Brake automatic
cancellation
The Secondary Collision Brake is automati-
cally canceled in the following situations:
●The vehicle speed drops below approxi-
mately 10 km/h (6 mph)
●A certain amount of time elapses during
operation
●The accelerator pedal is depressed a
large amount
■If “Check Secondary Collision Brake system” is displayed on the multi-infor-mation display
The system may be malfunctioning. Have the vehicle inspected at any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■Reduced effectiveness of the EPS sys-tem
The effectiveness of the EPS system is
reduced to prevent the system from over- heating when there is frequent steering input over an extended period of time. The
steering wheel may feel heavy as a result. Should this occur, refrain from excessive steering input or stop the vehicle and turn
the engine off. The EPS sys- tem should return to normal within 10 min-utes.
■Operating conditions of emergency
brake signal
When the following three conditions are
met, the emergency brake signal will oper- ate:
●The emergency flashers are off.
●Actual vehicle speed is over 55 km/h
(35 mph).
●The brake pedal is depressed in a manner
that cause the system to judge from the vehicle deceleration that this is a sudden braking operation.
■Automatic system cancelation of emer-
gency brake signal
The emergency brake sign al will turn off in
any of the following situations:
●The emergency flashers are turned on.
●The brake pedal is released.
●The system judges from the vehicle deceleration that is not a sudden braking
operation.
WARNING
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as exces-
sively worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick roads.

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4-6. Driving tips
Driving
Use fluids that are appropriate to
the prevailing outside temperatures.
•Engine oil
•Engine coolant
• Power control unit coolant (LC500h)
•Washer fluid
 Have a service technician inspect
the condition of the 12-volt battery.
 Have the vehicle fitted with four
snow tires.
Ensure that all tires are the specified size
and the same brand.
 Tire chains can only be installed on
the rear tires. However, tire chains
cannot be installed on 275/35RF21
or 275/40RF20 rear tires.
Before installing tire ch ains, change all four
tires and wheels to those of the specified
size for use with tire chains (front tires:
245/45RF20, rear tires: 245/45RF20,
wheels: 20 x 8 1/2 J 25 inset). Use the
specified type of tire chains and install
them on the rear tires only.
For details, contact any authorized Lexus
retailer or Lexus authorized repairer, or
any reliable repairer.
Winter driving tips
Carry out the necessary prepara-
tions and inspections before driving
the vehicle in winter. Always drive
the vehicle in a manner appropriate
to the prevailing weather condi-
tions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in a loss of
vehicle control and cause death or seri- ous injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the
speed limit or the speed limit specified for the snow tires being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used, or 50 km/h (30 mph), which-
ever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.
●Do not use LKA (Lane-Keeping Assist) system. (if equipped)

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7-1. Essential information
When trouble arises
seconds or more, or press it briefly
3 times or more in succession.
5 Stop the vehicle in a safe place by
the road.
WARNING
■If the engine has to
be turned off while driving
Power assist for the steering wheel will be lost, making the steering wheel heavier to turn. Decelerate as much as
possible before turning off the engine .

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7-2. Steps to take in an emergency
7-2.Steps to take in an emergency
If your vehicle needs to be
towed
If towing is necessary, we recom-
mend having your vehicle towed by
any authorized Lexus retailer or
Lexus authorized repairer, or any
reliable repairer or commercial
towing service, using a wheel-lift
type truck or flatbed truck.
Use a safety chain system for all
towing, and abide by all state/pro-
vincial and local laws.
WARNING
Observe the following precautions. Failure to do so may result in death or
serious injury.
■When towing the vehicle
LC500: Be sure to transport the vehicle with all four wheels raised off the ground. If the vehicle is towed with the tires con-
tacting the ground, the drivetrain and related parts may be damaged or an accident may occur due to a change in
direction of the vehicle.
LC500h: Be sure to transport the vehi- cle with all four wheels raised off the
ground. If the vehicle is towed with the tires contacting the ground, the drive-train and related parts may be damaged,
an accident may occur due to a change in direction of the vehicle or electricity generated by the operation of the motor
may cause a fire to occur depending on the nature of the damage or malfunction.
■While towing
●When towing using cables or chains, avoid sudden starts, etc. which place excessive stress on the towing eyelets,
cables or chains. The towing eyelets, cables or chains may become dam-aged, broken debris may hit people,
and cause serious damage.
●Do not turn the engine switch off.This may lead to an accident as the
rear wheels will be locked by the park- ing lock. Also, there is a possibility that the steering wheel is locked and can-
not be operated.
■Installing towing eyelets to the vehi- cle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing.