The Indicator And Buzzer; Sensor Operation And Distance To An Obstacle; Rear Corner Sensors; Rear Center Sensors - Toyota 4RUNNER Owner's Manual

2-4. Using other driving systems

The indicator and buzzer

When a sensor detects an obstacle, the direction of the obstacle is
indicated and the buzzer sounds.

Sensor operation and distance to an obstacle

n
The system operates when the vehicle approaches an obstacle, as
shown by the following table.

Rear corner sensors

Distance to an obstacle ft. (cm)
Approximately 1.6 - 1.2 (50 - 37.5)
Approximately 1.2 - 0.8 (37.5 - 25)
Approximately 0.8 or less (25 or less)

Rear center sensors

Distance to an obstacle ft. (cm)
Approximately 4.9 - 2.0 (150 - 60)
Approximately 2.0 - 1.5 (60 - 45)
Approximately 1.5 - 1.2 (45 - 35)
Approximately 1.2 or less (35 or less)
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4RUNNER_U
Indicator and buzzer
Intermittent
Fast intermittent
Continuously
Indicator and buzzer
Intermittent
Fast intermittent
Very fast intermittent
Continuously