Toyota PRIUS Owner's Manual page 389

• When the sensors cannot detect a
vehicle due to obstructions
●
Instances of the Rear Crossing Traffic Alert function unnecessarily detecting
a vehicle and/or object may increase in the following situations:
• When a vehicle passes by the side of your vehicle
• When the parking space faces a
street and vehicles are being driven
on the street
• When the distance between your vehicle and metal objects, such as a
guardrail, wall, sign, or parked vehicle, which may reflect electrical waves
toward the rear of the vehicle, is short
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4-5. Using the driving support systems
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