Toyota Prius: Parking Support Brake function (rear-crossing vehicles)

If the rear radar sensor of the Toyota Prius detects a vehicle approaching from the right or left at the rear and determines there is a high possibility of a collision, the system will automatically engage brake control to reduce the likelihood of an impact. This feature is designed to enhance safety by actively intervening to prevent potential rear-end collisions, providing drivers with additional confidence and protection while reversing.

Examples of function operation

This function will operate in situations such as the following if a vehicle is detected in the traveling direction of the vehicle.

When reversing, a vehicle is approaching and the brake pedal is not depressed, or is depressed late

Types of sensors

WARNING

To ensure the system can operate properly

The Parking Support Brake function (rear-crossing vehicles) will operate when

The function will operate when the driving assist information indicator is not illuminated   and all of the following conditions are met:

• Hybrid system output restriction control

• The Parking Support Brake is enabled.
• The vehicle speed is approximately 9 mph (15 km/h) or less.
• Vehicles are approaching from the right or left at the rear of the vehicle at a traveling speed of approximately 5 mph (8 km/h) or more.
• The shift position is in R.
• The Parking Support Brake determines that a stronger than normal brake operation is necessary to avoid a collision with an approaching vehicle.

• Brake control

• Hybrid system output restriction control is operating
• The Parking Support Brake determines that an emergency brake operation is necessary to avoid a collision with an approaching vehicle.

The Parking Support Brake function (rear-crossing vehicles) will stop operating when

The function will stop operating if any of the following conditions are met:

• Hybrid system output restriction control

• The Parking Support Brake is disabled.
• The collision becomes avoidable with normal brake operation.
• A vehicle is no longer approaching from the right or left at the rear of the vehicle.

• Brake control

• The Parking Support Brake is disabled.
• Approximately 2 seconds have elapsed since the vehicle was stopped by brake control.
• The brake pedal is depressed after the vehicle is stopped by brake control.

Detection area of the Parking Support Brake function (rearcrossing vehicles)

The detection area of the Parking Support Brake function (rear-crossing vehicles) differs from the detection area of the RCTA function . Therefore, even if the RCTA function detects a vehicle and provides an alert, the Parking Support Brake function (rear-crossing vehicles) may not start operating.

Situations in which the system may not operate properly

Situations in which the system may operate even if there is no possibility of a collision

Parking Support Brake function (static objects to the front and rear/static objects around the vehicle)Parking Support Brake function (rear pedestrians)