Lexus RX Owners Manual (RX450h): 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.

Turns the brake hold system on

The brake hold standby indicator (green) comes on. While the system is holding the brakes, the brake hold operated indicator (yellow) will illuminate.

Lexus RX. Driving procedures

■ Brake hold system operating conditions The brake hold system cannot be turned on in the following conditions:

  • The driver's door is not closed.
  • The driver's seat seat belt is not buckled.

If either 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 addition, if any of the conditions 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 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 brakes, 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 brakes, 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. A warning buzzer will sound and the multi-information display will inform the driver of this situation.

    If a warning message is shown on the multi-information display, read the message and follow the instructions.

■ When the parking brake is set automatically while the system is holding the brakes Perform any of the following operations to release the parking brake.

  • Depress the accelerator pedal. (The parking brake will not be released automatically if the seat belt is not fastened.)
  • Operate the parking brake switch with the brake pedal depressed.

    Make sure that the parking brake indicator light goes off.

■ When an inspection at your Lexus dealer is necessary When the brake hold standby indicator (green) does not illuminate even when the brake hold switch is pressed with the brake hold system operating conditions met, the system may be malfunctioning. Have the vehicle inspected at your Lexus dealer.

■ If "Brake Hold Fault Depress Brake to Deactivate Visit Your Dealer" is displayed on the multi-information display The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer.

■ Warning messages and buzzers Warning messages and buzzers are used to indicate a system malfunction or to inform the driver of the need for caution. If a warning message is shown on the multi-information display, read the message and follow the instructions.

WARNING

■ 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 brakes may release the brakes, which would cause the vehicle to move. When operating the power switch, depress the brake pedal, shift the shift lever to P and set the parking brake.

    Parking brake
    A mode can be selected from the following modes. Automatic mode The parking brake is set or released automatically according to the shift lever operation. Even when in automatic mode, the park ...

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