Toyota FORTUNER 2021 Owner's Manual page 291

When a vehicle turns into the detection
area
Situations in which the system may operate even if there is no possibil-
ity of a collision
Instances of the RCTA function unnecessarily detecting a vehicle and/or
object may increase in the following situations:
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
When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicycle carrier, or
snow plow
When a vehicle passes by the side of
your vehicle
4-5. Using the driving support systems
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