brake LEXUS LS600H 2017 Owner's Guide

2594-2. Driving procedures
4
Driving
LS600h/LS600hL_EE(OM50G20E)
■Downshifting restrictions warning buzzer
To help ensure safety and driving performance, downshifting operation may some-
times be restricted. In some circumstances, downshifting may not be possible even
when the shift lever or paddle shift switch (if equipped) is operated. (A buzzer will
sound twice.)
■When driving with cruise control, dynamic radar cruise control or dynamic radar
cruise control with full speed range activated
Even when performing the following actions with the intent of enabling engine brak-
ing, engine braking will not activate because cruise control, dynamic radar cruise
control or dynamic radar cruise control with full speed range will not be canceled.
●While driving in D or S mode, downshifting to 7, 6, 5 or 4. ( P. 289, 293, 307)
●When switching the driving mode to sport mode while driving in D position.
( P. 334)
■Snow mode automatic deactivation
Snow mode is automatically deactivated if th e power switch is turned off after driving
in snow mode.
■Shift lock system
The shift lock system is a system to prevent accidental operation of the shift lever in
starting.
The shift lever can be shifted from P only when the power switch is in ON mode and
the brake pedal is being depressed.
■If the shift lever cannot be shifted from P
First, check whether the brake pedal is being depressed.
If the shift lever cannot be shifted with your foot on the brake pedal, there may be a
problem with the shift lock system. Have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional imme-
diately.
The following steps may be used as an emergency measure to ensure that the shift
lever can be shifted.
Releasing the shift lock:
Turn the power switch to ON mode ( P. 248) and check that the parking brake is
set.
Turn the power switch off.
Depress the brake pedal.
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2614-2. Driving procedures
4
Driving
LS600h/LS600hL_EE(OM50G20E)
CAUTION
■When driving on slippery road surfaces
Be careful of downshifting and sudden acceleration, as this could result in the vehi-
cle skidding to the side or spinning.
■To prevent an accident when releasing the shift lock
Before pressing the shift lock override button, make sure to set the parking brake
and depress the brake pedal.
If the accelerator pedal is accidentally depressed instead of the brake pedal when
the shift lock override button is pressed and the shift lever is shifted out of P, the
vehicle may suddenly start, possibly leading to an accident resulting in death or
serious injury.
NOTICE
■Hybrid battery (traction battery) charge
If the shift lever is in N, the hybrid battery (traction battery) will not be charged
even when the engine is running. Therefore, if the vehicle is left with the shift lever
in N for a long period of time, the hybrid battery (traction battery) will discharge,
and this may result in the vehicle not being able to start.

2634-2. Driving procedures
4
Driving
LS600h/LS600hL_EE(OM50G20E)
Sets the parking brake
The parking brake indicator light will
come on. ( P. 265)
Press and hold the parking brake
switch if an emergency occurs and it is
necessary to operate the parking
brake while driving. The parking brake
is applied only while the switch is
being pressed.
Releases the parking brake
Operate the parking brake switch
while depressing the brake pedal.
Make sure that the parking brake indi-
cator light goes off.
Parking brake
A selections can be made as desired from the following modes.
Manual mode
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2644-2. Driving procedures
LS600h/LS600hL_EE(OM50G20E)
The parking brake is set or released automatically according to shift lever
operation.
Turns automatic mode on/off
When automatic mode is turned on,
the indicator on the switch comes
on and it operates in the following
manner:
●When the shift lever is moved into
P, the parking brake will be set.
●When the shift lever is moved out
of P, the parking brake will be
released.
Operate the shift lever with the brake
pedal depressed.
■Parking the vehicle
 P. 234
■Parking brake operation
●When the power switch is not in ON mode, the parking brake cannot be released
using the parking brake switch.
●When the power switch is not in ON mode, automatic mode (automatic brake set-
ting and releasing) is not available.
●If the parking brake is operated repeatedly over a short period of time, the system
may restrict operation to prevent overheating. If this happens, refrain from operat-
ing the parking brake. Normal operation will return after about 1 minute.
■Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.
Automatic mode

2654-2. Driving procedures
4
Driving
LS600h/LS600hL_EE(OM50G20E)
■Parking brake indicator light
●Depending on the power switch mode, the parking brake indicator light will come
on and stay on as described below:
ON mode: Comes on until the parking brake is released.
Not in ON mode: Stays on for approximately 15 seconds.
●When the power switch is turned off with the parking brake set, the parking brake
indicator light will stay on for about 15 seconds. This does not indicate a malfunc-
tion.
■Parking brake engaged warning buzzer
A buzzer will sound if the vehicle is driven at a speed of approximately 5 km/h (3
mph) or more with the parking brake engaged.
■When there is a malfunction in the system
Warning lights and/or warning message will turn on or flash. ( P. 555, 563)
Depending on the condition, the parking brake indicator light may flash.
■Usage in winter time
 P. 384
NOTICE
■When parking the vehicle
Before you leave the vehicle, set the parking brake, shift the shift lever to P and
make sure that the vehicle does not move.
■When the system malfunctions
Stop the vehicle in a safe place and check the warning messages.
■When the parking brake cannot be released due to a malfunction
Use the parking brake release tool to manually release the parking brake.
( P. 599)
Driving the vehicle with the parking brake set will lead to brake components over-
heating, which may affect braking performance and increase brake wear.

2664-2. Driving procedures
LS600h/LS600hL_EE(OM50G20E)
Turns the brake hold system on
The brake hold standby indicator
(green) comes on. While the system is
holding the brake, the brake hold
operated indicator (yellow) comes on.
■Brake hold system operating conditions
The brake hold system cannot be turned on in the following conditions:
●The trunk or hood is not closed.
●The driver’s door is not closed.
●The driver is not wearing the seat belt.
If any of the conditions above are detected when the brake hold system is enabled,
the system will turn off and the brake hold standby indicator light will go off. In addi-
tion, if any of the conditions are detected while the system is holding the brake, a
warning buzzer will sound and a message will be shown on the multi-information dis-
play. The parking brake will then be set automatically.
■Brake hold function
●If the brake pedal is left released for a period of about 3 minutes after the system
has started holding the brake, the parking brake will be set automatically. In this
case, a warning buzzer sounds and a message is shown on the multi-information
display.
●To turn the system off while the system is holding the brake, firmly depress the
brake pedal and press the switch again.
●The brake hold function may not hold the vehicle when the vehicle is on a steep
incline. In this situation, it may be necessary for the driver to apply the brakes. The
multi-information display will inform the driver of this situation.
Brake Hold
The brake hold system keeps the brake applied when the shift lever is in
D, S or N with the system on and the brake pedal has been depressed to
stop the vehicle. The system releases the brake when the accelerator
pedal is depressed with the shift lever in D or S to allow smooth start off.

2674-2. Driving procedures
4
Driving
LS600h/LS600hL_EE(OM50G20E)
■When the parking brake is set automatically while the system is holding the brakes
The parking brake will not be released automatically. Release the parking brake by
operating the parking brake switch, making sure that the parking brake indicator
light goes off. ( P. 263)
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. ( P. 557, 563)
CAUTION
■When the vehicle is on a steep incline
When using the brake hold system on a steep incline exercise caution. The brake
hold function may not hold the vehicle in such a situation.
■When stopped on a slippery road
The system cannot stop the vehicle when the gripping ability of the tires has been
exceeded. Do not use the system when stopped on a slippery road.
NOTICE
■When parking the vehicle
The brake hold system is not designed for use when parking the vehicle for a long
period of time. Turning the power switch off while the system is holding the brake
may release the brake, which would cause the vehicle to move. When operating
the power switch, depress the brake pedal, set the parking brake and shift the shift
lever to P.

2714-3. Operating the lights and wipers
4
Driving
LS600h/LS600hL_EE(OM50G20E)
AFS (Adaptive Front-lighting System) secures excellent visibility at inter-
sections and on curves by automatically adjusting the direction of the light
axis of the headlights according to vehicle speed and the degree of the
tire’s angle as controlled by steering input.
AFS operates at speeds of 10 km/h (6 mph) or higher.
■Daytime running light system
To make your vehicle more visible to othe r drivers during daytime driving, the day-
time running lights turn on automatically whenever the hybrid system is started and
the parking brake is released with the headlight switch off or in the position. (Illu-
minate brighter than the front position lights.)
Daytime running lights are not designed for use at night.
■Headlight control sensor
■Automatic light off system
●When the light switch is in or : The headlights turn off automatically if the
power switch is turned to ACCESSORY mode or turned off.
●When the light switch is in : The headlights and all lights turn off automatically if
the power switch is turned to ACCESSORY mode or turned off.
To turn the lights on again, turn the po wer switch to ON mode, or turn the light
switch off once and then back to or .
■Light reminder buzzer
A buzzer sounds when the power switch is turned off or turned to ACCESSORY
mode and the driver’s door is opened while the lights are turned on.
AFS (Adaptive Front-lighting System)
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the wind-
shield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.

2904-5. Using the driving support systems
LS600h/LS600hL_EE(OM50G20E)
To change the set speed, operate the lever until the desired set speed is
obtained.
Increases the speed
Decreases the speed
Fine adjustment: Momentarily move
the lever in the desired direction.
Large adjustment: Hold the lever in
the desired direction.
The set speed will be increased or decreased as follows:
Fine adjustment: By approximately 1.6 km/h (1 mph) each time the lever is oper-
ated.
Large adjustment: The set speed can be increased or decreased continually until
the lever is released.
Pulling the lever toward you can-
cels the constant speed control.
The speed setting is also canceled
when the brakes are applied.
Pushing the lever up resumes the
constant speed control.
Resuming is available when the vehi-
cle speed is more than approximately
40 km/h (25 mph).
Adjusting the set speed
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Canceling and resuming the constant speed control
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2974-5. Using the driving support systems
4
Driving
LS600h/LS600hL_EE(OM50G20E)
Pulling the lever toward you can-
cels the cruise control.
The speed setting is also canceled
when the brakes are applied.
Pushing the lever up resumes the
cruise control and returns vehicle
speed to the set speed.
Resuming is available when the vehi-
cle speed is more than approximately
40 km/h (25 mph).
Canceling and resuming the speed control
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