2006 Lexus GS 300 Owners Manual - Page 872

TOUCH SCREEN INFORMATION D Talk alternately with your party on the phone. If you talk at the same time, the voice may not reach each other. (It is not a malfunction.) D Keep the volume of receiving voice down. Otherwise, echo is coming up. When you talk on the phone, speak clearly towards the microphone. D In the following situations, your voice may not reach the party. You can use the microphone above when talking on the phone. The party's voice outputs from the driver's speaker. When the received calls or received voice outputs, the audio from the audio system or voice guidance from the Navigation system will be muted. z z z z z G18005a Driving on unpaved road. (Making a traffic noise.) Driving at the high speed. The window is open. Turning the air conditioning vents towards the microphone. The sound of the air conditioning fan is loud. 226