Re-Enabling The Rear Cross Traffic Auto Brake Function; Conditions Under Which The Rear Cross Traffic Auto Brake Function Will Not Detect A Vehicle; Rcta Function Buzzer - Lexus RX 450H Owner's Manual

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4-5. Using the driving support systems

Re-enabling the Rear Cross Traffic Auto Brake function

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To re-enable the Rear Cross Traffic Auto Brake function when it is disabled during opera-
tion of the Rear Cross Traffic Auto Brake function, either enable the system again (→P.
344), or turn the power switch off and then back to ON mode.
Additionally, if there is no longer a vehicle approaching from the right or left at the rear of
the vehicle, or if the traveling direction of the vehicle changes (such as changing from
moving forward to backing up or from backing up to moving forward), the system will be
re-enabled automatically.
Conditions under which the Rear Cross Traffic Auto Brake function will not detect a
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vehicle
The Rear Cross Traffic Auto Brake function is not designed to detect the following types
of vehicles and/or objects.
Vehicles approaching from directly behind
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Vehicles backing up in a parking space next to your vehicle
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Vehicles that the sensors cannot detect due
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to obstructions
Vehicles which suddenly accelerate or decel-
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erate near your vehicle
Guardrails, walls, signs, parked vehicles and similar stationary objects*
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Small motorcycles, bicycles, pedestrians, etc.*
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Vehicles moving away from your vehicle
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Vehicles approaching from the parking spaces next to your vehicle*
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*
: Depending on the conditions, detection of a vehicle and/or object may occur.

RCTA function buzzer

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Regardless of whether the RCTA function is enabled or not (→P. 322), if the Rear Cross
Traffic Auto Brake function is enabled and brake control is performed, a buzzer will
sound to notify the driver.
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