Toyota Sienna 2010 Owner's Manual page 212

2-4. Using other driving systems
When to contact your Toyota dealer
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In the following cases, have your Toyota dealer check the system.
When the bumper is damaged.
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When the indicator is continuously on.
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Certification (Canada only)
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This ISM device complies with Canadian ICES-001.
CAUTION
Caution when using the Intuitive parking assist
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The Intuitive parking assist is intended as an aid to assist you to park and
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is not a substitute for your personal judgment. Make your driving decisions
based on your observations.
Do not attach accessories or other objects to the vehicle within the sensor
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perceptible area. Doing so may cause the system to malfunction, which
might result in an accident.
In certain situations, the system will not function properly and when the
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vehicle approaches certain objects, the system will not detect those
objects. Therefore, always observe the area around the vehicle and do not
rely solely on the system.
NOTICE
Notes when washing the vehicle
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Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.
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