2008 Toyota Prius Owners Manual - Page 301

3-4. Using the hands-free system Status display You can check such indicators as signal strength and battery charge on the "Telephone" screen. Connection status 1 2 3 4 Battery charge Call area Signal strength ITY34P003 3 Indicators Blue: Good Yellow: Bad Conditions Interior features Connection status : Not connected Battery charge Call area : Full : Low "Rm": Roaming area "Hm": Home area : Good : Bad : Not connected Signal strength 273 PRIUS_U_(L/O_0802)