Toyota Tacoma 2018 Owner's Manual page 277

When multiple obstacles are detected in front and behind the
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vehicle at the same time
The buzzer will change in the following manner.
● If an obstacle has been detected within 1.5 ft. (45 cm) of the front
or 2.8 ft. (85 cm) in rear of the vehicle (a continuous buzzer is
sounding), and a new obstacle is detected at the other end of the
vehicle, the buzzer will sound 7 times then 1 continuous buzzer.
● If an obstacle has been detected within 1.5 ft. (45 cm) of the front
or 2.8 ft. (85 cm) in rear of the vehicle (a continuous buzzer is
sounding), and a new obstacle is detected in the same way at the
other end of the vehicle, the buzzer will sound 3 times then 1
continuous buzzer.
Detection range of the sensors
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1
Approximately 5.9 ft. (180 cm)
2
Approximately 2.8 ft. (85 cm)
The diagram shows the detection
range of the sensors. Note that the
sensors may not be able to detect
obstacles that are extremely close
to the vehicle.
The range of the sensors may
change depending on the shape of
the object, etc.
4-5. Using the driving support systems
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