TOYOTA 2011 Prius - Manual (Page 259)

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2-4. Using other driving systems
2
When
d
riving
PRIUS_U (OM47685U) DVD
CAUTION
n Conditions under which the vehicle-to-vehicle distance control may
not function correctly
Apply the brakes as necessary in the following conditions as the radar sen-
sor may not be able to correctly detect vehicles ahead, and a fatal or serious
accident may result:
l When water or snow thrown up by the surrounding vehicles hinders the
functioning of the sensor
l When your vehicle is pointing upwards (caused by a heavy load in the lug-
gage compartment etc.)
l When the road curves or when the lanes are narrow
l When steering wheel operation or your position in the lane is unstable
l When the vehicle ahead of you decelerates suddenly
n Handling the radar sensor
Observe the following to ensure the cruise control system can function effec-
tively.
Otherwise, the system may not function correctly and could result in an acci-
dent.
l Keep the sensor and front grille cover clean at all times.
Clean the sensor and front grille cover with a soft cloth so you do not mark
or damage them.
l Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunction.
If the sensor or surrounding area is subject to a strong impact, always
have the area inspected and adjusted by a Toyota dealer.
l Do not disassemble the sensor.
l Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.
l Do not modify or paint the sensor and grille cover.
l Do not replace them with non-genuine parts.