Lexus LS460 2011 Owner's Manual page 216


Conditions under which the brake hold system will not turn on or will turn
off
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 above conditions are detected while the brake hold system is
enabled, the system will turn off and the brake hold operated indicator light
will go off.

Brake hold function

If any of the following are detected while the system is holding the
brakes, a warning buzzer will sound and a message will be shown on the
multi-information display. The parking brake will be set automatically.
• The trunk or hood is opened.
• The driver's door is opened.
• The driver's seat belt is released.
• The brake pedal is left released for a period of about 3 minutes.

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.

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. 200)

When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. (P. 687,
696)
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2-1. Driving procedures
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