Lexus LS 600h L 2012 Owner's Manual page 203

2-1. Driving procedures
Brake hold function
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If the brake pedal is left released for a period of about 3 minutes after the sys-
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tem 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-infor-
mation display.
To turn the system off while the system is holding the brake, firmly depress the
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brake pedal and press the switch again.
The brake hold function may not hold the vehicle when the vehicle is on a steep
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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.
When the parking brake is set automatically while the system is holding the
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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. 196)
When there is a malfunction in the system
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Warning lights and/or warning messages will turn on or flash. (→P. 504, 514)
CAUTION
When stopped on a slippery road
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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
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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 oper-
ating the "POWER" switch, depress the brake pedal, set the parking brake and shift
the shift lever to "P".
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