ECO LEXUS LS500 2019 Owners Manual

2874-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving
■
Parking Support Brake function (rear
pedestrians) will operate when
The function will oper ate when the PKSB
OFF indicator is not illuminated or flashing
(  P.69, 70) and all of the following condi-
tions are met:
●
Engine output restriction control
• The Parking Support Brake is enabled.
• The vehicle speed is 9 mph (15 km/h) or
less.
• The shift position is in R.
• The rear camera sensor detects a pedes-
trian behind the vehicle while backing up
and the system determines that the possi-
bility of colliding with the detected
pedestrian is high.
●
Brake control
• Engine output restriction control is oper-
ating. • The Parking Support Brake determines
that an emergency brake operation is
necessary to avoid a collision with a
pedestrians. ■
The Parking Support Brake function
(rear pedestrians) will stop operating
when
The function will stop operating if any of the
following conditions are met: ●
Engine output restriction control
• The Parking Support Brake is disabled.
• The collision becomes avoidable with
normal brake operation.
• The pedestrian is no longer detected
behind your vehicle. ●
Brake control
• The Parking Support Brake is disabled.
• Approximately 2 seconds have elapsed
since the vehicle was stopped by brake
control.
• The brake pedal is depressed after the
vehicle is stopped by brake control.
• The pedestrian is no longer detected
behind your vehicle. ■
Re-enabling the Parking Support Brake
function (rear pedestrians)
 P.275 ■
Detection area of the Parking Support
Brake function (rear pedestrians)
The detection area of the Parking Support
Brake function (rear pedestrians) differs
from the detection area of the RCD func-
tion (  P.268). Therefore, even if the RCD
function detects a vehicle and provides an
alert, the Parking Support Brake function
(rear-crossing vehicles) may not start oper-
ating.
■
Situations in which the system may not
operate properly
●
Some pedestrians, such as the following,
may not be detected by the Parking Sup-
port Brake function (rear pedestrians),
preventing the function from operating
properly:
• Pedestrians who are bending forward or
squatting
• Pedestrians who are lying down
• Pedestrians who are running
• Pedestrians who suddenly enter the
detection areaWARNING■
If the Parking Support Brake function
(rear pedestrians) operates unneces-
sarily
Depress the brake pedal immediately
after the Parking Support Brake function
(rear pedestrians) operates. (Operation
of the function is canceled by depressing
the brake pedal.) ■
Correct use of the Parking Support
Brake function (rear pedestrians)
Do not overly rely on the Parking Sup-
port Brake function (rear pedestrians).
Depending on the road conditions, vehi-
cle conditions and weather, this function
may not operate correctly. As the detec-
tion performance of the rear camera is
limited, always drive safely, taking care to
observe your surroundings.
Additionally, if the PKSB OFF indictor is
flashing or a warning message is dis-
played on the center display indicating
that the Parking Support Brake function
(rear pedestrians) is unavailable, the
function cannot be used. Even if these
warnings are not output, the driver is
always responsible for paying attention
to the vehicle’s surro undings and driving
safely.

2894-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving 
Vehicles without Adaptive Variable
Suspension System
1 Normal modeProvides an optimal ba lance of fuel econ-
omy, quietness, and dynamic performance.
Suitable for city driving.
Press the switch to change the driving
mode to normal mode when not in normal
mode.
2 Eco drive modeHelps the driver accelerate in an
eco-friendly manner and improve fuel
economy through modera te throttle char-
acteristics and by controlling the operation
of the air conditioning system (heat-
ing/cooling).
When not in Eco drive mode, if the driving
mode select switch is turned backward, the
Eco drive mode indicator will come on.
3 Sport modeControls the transmission and engine to
provide quick, powerful acceleration. This
mode also changes the steering feel, mak-
ing it suitable for when agile driving
response is desired, such as when driving on roads with many curves.
When not in sport mode, if the driving
mode select switch is turned forward, the
sport mode indicator will comes on. 
Vehicles with Adaptive Variable
Suspension System
Except F SPORT models
F SPORT models
1 Normal mode/Custom mode Normal mode and custom mode are
selected by pressing the driving mode
select switch. Each time the switch is
pressed, the driving mode changes
between normal mode and custom mode.
When normal mode is selected, the normal
mode indicator comes on.
When custom mode is selected, the cus-
tom mode indicator comes on.
Press the switch to change the driving
mode to normal mode when not in normal
mode.
• Normal mode
Provides an optimal ba lance of fuel econ-
omy, quietness, and dynamic performance. Driving mode select switch The driving modes can be selected
to suit driving condition.
Selecting a drive mode
A
B

290 4-5. Using the driving support systems
LS500_OM_(U)_1810 Suitable for city driving.
When the shift position is in D, an appropri-
ate gear for sporty driving may automati-
cally be selected according to driver
performance and dr iving conditions.
•Custom mode
Allows you to drive with the powertrain,
chassis and air condit ioning system func-
tions set to your preferred settings. Cus-
tom mode settings can only be changed on
the drive mode customization display of
the Center Display. (  P.306)
2 Comfort modeBy controlling the suspension, riding com-
fort is further enhanc ed. Suitable for city
driving.
When not in comfort mode and the driving
mode select switch is turned backward, the
comfort mode indicator comes on.
3 Eco drive modeHelps the driver accelerate in an
eco-friendly manner and improve fuel
economy through modera te throttle char-
acteristics and by controlling the operation
of the air conditioning system (heat-
ing/cooling).
When in comfort mode, if the driving mode
select switch is turned backward, the Eco
drive mode indicator comes on.
4 Sport mode•Sport S mode
Controls the transmission and engine to
provide quick, powerful acceleration. This
mode is suitable for when agile driving
response is desired, such as when driving
on roads with many curves.
When not in Sport S mode, if the driving
mode select switch is turned forward, the
Sport S mode indicator comes on.
•Sport S+ mode
Helps to ensure stee ring performance and
driving stability by simultaneously con- trolling the steering and suspension in
addition to the transmission and engine.
Suitable for sportier driving.
When in Sport S mode, if the driving mode
select switch is turned forward, the Sport
S+ mode indicator comes on. ■
If the driving mode select switch is oper-
ated while the opening screen is being
displayed
If the driving mode sele ct switch is operated
while the opening screen is being displayed,
the driving mode will be changed and the
meter display will chan ge accordingly after
the opening screen operation has com-
pleted. ■
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 en hance fuel efficiency.
To improve air condit ioning performance,
perform the following operations: ●
Turn off eco air conditioning mode
(  P.318)●
Adjust the fan speed (  P.313)●
Turn off Eco drive mode ■
Automatic deactivation of sport mode
and custom mode
If the engine switch is turned off after driv-
ing 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.307)

294 4-5. Using the driving support systems
LS500_OM_(U)_1810 ■
When “Check Air Suspension System”
is displayed on th e multi-information
display
The system may not operate properly. Have
the vehicle inspected by your Lexus dealer. ■
Customization
Some functions can be customized.
(  P.466)
■
ECB (Electronically Controlled
Brake System) (vehicles with Lexus
Safety System + A)
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 stop lights are 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

2954-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving automatically controlled to reduce the
vehicle speed and that helps reduce
the possibility of further damage due to
a secondary collision. ■
TRAC (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 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. ■
Active stabilizer suspension sys-
tem (if equipped)
Reduces sway when cornering accord-
ing to steering wheel movement in
order to maintain a stable vehicle pos-
ture. ■
Adaptive Variable Suspension Sys-
tem (if equipped)
By independently controlling the
damping force of th e shock absorbers
for each of the 4 wheels according to
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.289) ■
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, TRAC, VSC,
hill-start assist control, EPS, VGRS (if
equipped), DRS (if equipped), active
stabilizer suspension system (if
equipped) and Adaptive Variable Sus-
pension System (if equipped)
Helps to maintain vehicle stability when
swerving on slippery road surfaces by
controlling the brakes, engine output,
steering assist, and steering ratio

296 4-5. Using the driving support systems
LS500_OM_(U)_1810 ■
When the TRAC/VSC systems are
operating (vehicles without Lexus
Safety System + A)
The slip indicator light will flash while the
TRAC/VSC systems are operating.
■
When the TRAC/VSC/ABS systems are
operating (vehicles with Lexus Safety
System + A)
The slip indicator light will flash while the
TRAC/VSC/ABS systems are operating.
■
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 the
switch 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 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 TRAC and VSC systems
To turn the TRAC 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 Control Turned Off” will
be shown on the multi-information display. *
Press the switch ag ain to turn the sys-
tem back on. *
: On vehicles with PCS (Pre-Collision
System), PCS will also be disabled (only
Pre-Collision warning is available). The
PCS warning light will come on and a
message will be di splayed on the
multi-information display. (  P.214,
222) ■
When the message is displayed on the
multi-information display showing that
TRAC has been disabled even if the
switch 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 stating 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

2974-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving of the following situations: ●
Shift the shift position 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 battery is disconnected (vehi-
cles 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, VS C, TRAC, 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 also after
the vehicle comes to a stop.
• Vehicles without Lexus Safety System +
A: The brake pedal may pulsate slightly after the ABS is activated.
• Vehicles without Lexus Safety System +
A: The brake pedal may move down
slightly after the ABS is activated.■
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. ■
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 TRAC and
VSC systems
After turning the TRAC 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 TRAC system is turned off, the
TRAC will turn on when vehicle speed
increases
If both the TRAC and VSC systems are
turned off, automatic re-enabling will not
occur when vehicle speed increases. ■
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, re frain from excessive
steering input or stop the vehicle and turn
the engine off. The EPS system should
return to normal within 10 minutes.
■
Secondary Collision Brake operating
conditions
The vehicle speed is approximately 6 mph

298 4-5. Using the driving support systems
LS500_OM_(U)_1810 (10 km/h) or more and the airbag sensor
detects a collision. (The Secondary Colli-
sion Brake will not operate when the vehicle
speed is below approximately 6 mph [10
km/h].) ■
Secondary Collision Brake automatic
cancellation
The Secondary Collision Brake is automati-
cally canceled in the following situations: ●
The vehicle speed drops below approxi-
mately 6 mph (10 km/h)●
A certain amount of time elapses during
operation●
The accelerator pedal is depressed a
large amount■
When “Check VGRS System” or
“CHECK DRS” is displayed on the
multi-information display
The VGRS or DRS may not operate prop-
erly. Have the vehicle inspected by your
Lexus dealer.
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.
■
Stopping distance when the ABS is
operating may exceed that of normal
conditions
The ABS is not designed to shorten the
vehicle’s stopping di stance. 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 ■
TRAC/VSC may not operate effec-
tively when
Directional control and power may not
be achievable while driving on slippery
road surfaces, even if the TRAC/VSC
system is operating. Drive the vehicle
carefully in conditions where stability and
power may be lost. ■
Hill-start assist control does not oper-
ate 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 TRAC/VSC is activated
(vehicles without Lexus Safety Sys-
tem + A)
The slip indicator light flashes. Always
drive carefully. Reckless driving may
cause an accident. Exercise particular
care when the indicator light flashes.
■
When the TRAC/ABS/VSC is acti-
vated (vehicles with Lexus Safety Sys-
tem + A)
The slip indicator light flashes. Always
drive carefully. Reckless driving may
cause an accident. Exercise particular
care when the indicator light flashes.
■
When the TRAC/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 driving force, do not
turn the TRAC/VSC systems off unless
necessary.

2994-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving WARNING■
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 ti res 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, TRAC and VSC systems will
not function correctly if different tires are
installed on the vehicle.
Contact your Lexus dealer 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.

300 4-6. Driving tips
LS500_OM_(U)_1810 4-6.Driving tips
 Use fluids that are appropriate to
the prevailing outside temperatures. •Engine oil
• Engine coolant
•Washer fluid
 Have a service technician inspect
the condition of the battery.
 Have the vehicle fitted with four
snow tires or purchase a set of tire
chains for the rear tires. *
Ensure that all tires are the specified size
and brand, and that chains match the size
of the tires. *
: Tire chains cannot be mounted on vehi-
cles with front and rear tires of differing
sizes.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 in excess of 75 mph (120
km/h), regardless of the type of snow
tires being used. ●
Use snow tires on all, not just some
wheels. ■
When installing tire chains
Before installing tire chains, make sure to
disable all functions of the vehicle height
control of the electronically modulated
air suspension. Otherwise, the vehicle
height may change while installing the
tire chains and part or your body may be
caught under the vehicle, possibly caus-
ing injury. (  P.293)■
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 30 mph (50 km/h), which-
ever is lower. ●
Avoid driving on bumpy road surfaces
or over potholes. ●
Avoid sudden acceleration, abrupt
steering, sudden br aking 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 LTA (Lane Tracing Assist)
system.