Status Display (Hands-Free System) - Lexus LX 570 Owner's Manual

3-5. Using the hands-free system (for cellular phone)
Status display
You can check indicators such as signal strength and battery charge on
the "Phone" screen.
Indicators
Connection status
Battery charge
Call area
Signal strength
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LX570_OM_OM60L96U_(U)
Connection status
Battery charge
Call area
Signal strength
Conditions
Good
Full
"Rm": Roaming area
Excellent
No
connection
Empty
Poor