TOYOTA 2010 Prius - Manual (Page 402)

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3-6. Other interior features
Outside temperature display
■
Operating conditions
The “POWER” switch is in ON mode.
■
When --- is displayed
The system may be malfunctioning. Take your vehicle to your Toyota dealer.
■
Display
In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change.
●
When stopped, or driving at low speeds (less than 12 mph [20 km/h])
●
When the outside temperature has changed suddenly (at the entrance/
exit of a garage, tunnel, etc.)
The displayed temperature ranges from -22 °F (-30 °C) up to 122 °F
(50 °C).
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