ABS LEXUS LS600H 2017 User Guide

3424-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
■Hill-start assist control is operational when
●The system has detected that the vehicle is moving backward.
●The shift lever is in the D or S position.
●The brake pedal is not depressed.
■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 vehi-
cle is stopped or is moving very slowly
●When the steering wheel has been held fully to the left or right
●When the 12-volt battery is low or the voltage temporarily drops
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.
■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 hybrid system 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 operating.
None of these indicates that a malfunction 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.
●The steering wheel may be moved slightly or a sound may be heard when the
hybrid system is started or stopped. None of these indicate that a malfunction has
occurred.
■EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.
■Reactivation of the TRC/VSC systems
Even after the TRC/VSC systems have been turned off, turning the hybrid system off
and then on again will automatically reactivate the TRC/VSC systems.

3444-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
CAUTION
■The ABS does not operate effectively when
●Tires with inadequate gripping ability are used (such as excessively 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 condi-
tions
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 situa-
tions:
●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 may not operate effectively when
Directional control and power may not be achievable while driving on slippery
road surfaces, even if the TRC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
■Hill- start assist control does not operate effectively when
Do not overly rely on the hill-start assist control. The hill-start assist control may not
operate effectively on steep inclines and roads covered with ice.
■When the VSC is activated
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 driving force, do not turn
the TRC/VSC systems off unless necessary.

3454-5. Using the driving support systems
4
Driving
LS600h/LS600hL_EE(OM50G20E)
CAUTION
■Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended 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 dealer or repairer, or another duly qualified and
equipped professional 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.

3594-5. Using the driving support systems
4
Driving
LS600h/LS600hL_EE(OM50G20E)
CAUTION
■Cautions regarding the assist contents of the system
By means of alarms and brake control, the pre-crash safety system is intended to
assist the driver in avoiding collisions through the process of LOOK-JUDGE-ACT.
There are limits to the degree of assistance the system can provide, so please keep
in mind the following important points.
●Assisting the driver in watching the road
The pre-crash safety system is only able to detect obstacles directly in front of the
vehicle, and only within a limited range. It is not a mechanism that allows careless
or inattentive driving, and it is not a system that can assist the driver in low-visibil-
ity conditions. It is still necessary for the driver to pay close attention to the vehi-
cle’s surroundings.
●Assisting the driver in making correct judgment
When attempting to estimate the likelihood of a collision, the only data available
to the pre-crash safety system is that from obstacles it has detected directly in
front of the vehicle. Therefore, it is absolutely necessary for the driver to remain
vigilant and to determine whether or not there is a possibility of collision in any
given situation.
●Assisting the driver in taking action
The pre-crash safety system’s braking assist feature is designed to help reduce
the severity of a collision, and so only acts when the system has judged that a col-
lision is unavoidable. This system is not capable of automatically avoiding a colli-
sion or bringing the vehi cle to a stop safely without appropriate operations
performed by the driver. For this reason, when encountering a dangerous situa-
tion the driver must take direct and immediate action in order to ensure the safety
of all involved.
NOTICE
■Precautions for cleaning the driver monitor sensor (vehicles with driver monitor
system)
●Gently wipe the sensor with a soft cloth to prevent damage.
●Wipe any excess dirt with a cloth dampened with neutral detergent, all liquids
having been wringed out of the cloth. After that, wipe again with a dry cloth.
●Do not use benzene, thinner, glass cleaners, wax, etc.

5567-2. Steps to take in an emergency
LS600h/LS600hL_EE(OM50G20E)
The following warning indicates the possibility of damage to the vehicle
that may lead to an accident. Immediately stop the vehicle in a safe place
and contact any authorized Lexus dealer or repairer, or another duly qual-
ified and equipped professional.
Failure to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional immediately.
Stop the vehicle immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
•The hybrid system;
• The emission control system (on some models);
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic hybrid transmission control system
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The seat belt pretensioner system; or
• The active head restraints system (if equipped)
ABS warning light
Indicates a malfunction in:
•The ABS; or
• The brake assist system

5577-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
Electric power steering system warning light (warning buzzer)
Indicates a malfunction in the EPS (Electric Power Steering)
system
(Flashes)
(If equipped)
Pre-crash safety system warning light
Indicates a malfunction in the pre-crash safety system
The warning light will operate as follows, even when the system
is not malfunctioning:
• The light will flash quickly when the system is operating.
( P. 346)
• The light will turn on when the pre-crash braking is disabled.
( P. 341, 348)
• The light will turn on when the system cannot temporarily be
used.
Slip indicator
Indicates a malfunction in:
•The VSC system;
•The TRC system;
•The ABS; or
• The hill-start assist control system
The light will flash when the VS C, the TRC, the ABS or the hill-
start assist control system is operating. ( P. 340)
(Flashes)
Brake hold operated indicator
Indicates a malfunction in the brake hold system
(Flashes)
Parking brake indicator
Indicates a malfunction in the electric parking brake
Brake system warning light
Indicates a malfunction in:
• The electronically controlled brake system;
• The regenerative braking system; or
• The electric parking brake
Warning lightWarning light/Details

5627-2. Steps to take in an emergency
LS600h/LS600hL_EE(OM50G20E)
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional. The vehicle
will become extremely unstable during braking, and the ABS system may fail,
which could cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
●As the tire inflation pressure may be low when this warning light is illuminated,
stop your vehicle in a safe place as soon as possible and adjust the tire inflation
pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warn-
ing system may not operate properly.

5657-2. Steps to take in an emergency
7
When trouble arises
LS600h/LS600hL_EE(OM50G20E)
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■The LKA (Lane-Keeping Assist) lane de parture warning function (if equipped)
In the following cases, the warning message will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LKA system
functions
●When the lane lines cannot be recognized
●When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes
■System warning lights
The master warning light does not come on or flash in the following cases. Instead, a
separate system warning light will come on or flash along with the message shown
on the multi-information display.
●Malfunction of the brake system
The brake system warning light (red indicator) comes on. ( P. 555)
●Malfunction of the regenerative brake system, electronically controlled brake sys-
tem or electric parking brake
The brake system warning light (yellow indicator) comes on. ( P. 557)
●Malfunction of the ABS
The ABS warning light comes on. ( P. 556)
●Malfunction of the charging system
The charging system warning light comes on. ( P. 556)
●Indicates that a door or the trunk is not fully closed
The open door warning light comes on. ( P. 558)
●High engine coolant temperature
The needle of the engine coolant temperature gauge enters the red zone.
( P. 611)

654
LS600h/LS600hL_EE(OM50G20E)
Alphabetical index
Alphabetical index
A/C
Air conditioning filter........................ 529
Front automatic air
conditioning system ......................399
Rear air conditioning system ........ 418
ABS (Anti-lock Brake System) ...... 338
Function ..................................................338
Warning light ...................................... 556
Adaptive Front-lighting System
(AFS) ......................................................271
Adaptive High-beam System
(AHS) ..................................................... 273
AFS (Adaptive Front-lighting
System) ...................................................271
AHS (Adaptive High-beam
System) .................................................. 273
Air conditioning filter .......................... 529
Air conditioning system
Air conditioning filter........................ 529
Front automatic air
conditioning system ......................399
Rear air conditioning system ........ 418
Airbags ........................................................ 49
Airbag manual on-off system........... 61
Airbag operating conditions .......... 56
Airbag precautions for
your child ...............................................52
Airbag warning light ........................ 556
Correct driving posture..................... 42
Curtain shield airbag operating
conditions ............................................. 56
Curtain shield airbag
precautions ...........................................52
General airbag precautions ............52
Locations of airbags ............................49
Modification and disposal of
airbags.................................................... 55
Side airbag operating
conditions ............................................. 56
Side airbag precautions.....................52
Side and curtain shield airbags
operating conditions ....................... 56
Side and curtain shield airbags
precautions ...........................................52
SRS airbags ..............................................49
Airbag manual on-off system ............... 61
A

655Alphabetical index
LS600h/LS600hL_EE(OM50G20E)
Alarm
Alarm ........................................................ 103
Warning buzzer .................... 555, 563
Anchor brackets .............................. 74, 75
Antennas (smart entry &
start system) ......................................... 152
Anti-lock Brake System (ABS) ...... 338
Function ..................................................338
Warning light ...................................... 556
Approach warning ..................... 299, 314
Armrest ...................................................... 461
Ashtrays ....................................................448
Assist grips .............................................. 473
Audio/visual system*
Automatic headlight leveling
system ................................................... 272
Automatic light control system ...... 269
Auxiliary boxes ...................................... 439
Back-up lights
Replacing light bulbs ....................... 543
Battery (12-volt battery) .................... 502
If the 12-volt battery is
discharged ........................................ 607
Preparing and checking
before winter.................................... 384
Warning light....................................... 556
Battery (traction battery) ..................... 89
Blind Spot Monitor (BSM) .............. 366
Brake
Brake Hold ........................................... 266
Emergency brake signal................ 339
Fluid .......................................................... 630
Parking brake ...................................... 263
Regenerative braking..........................87
Warning light.......................... 555, 557
Brake assist ............................................ 338
Brake Hold .............................................. 266
Break-in tips ........................................... 235
Brightness control
Instrument panel li ght control ......... 117
BSM (Blind Spot Monitor) ............... 366
B
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S
MANUAL”.