2007 Toyota Avalon Navigation Manual - Page 90

Current position calibration The current vehicle position mark will be automatically corrected while driving on reception of GPS signals. If your vehicle cannot receive GPS signals, you can correct the current position mark manually. 2. Select the "Calib." switch on the right side of the screen. The next screen appears. 3. Select the switch. "Position/Direction" INFORMATION 1. Push the "MENU" button on the navigation controller to display the "Menu" screen, and then select the "Setup" switch. For additional information on current position accuracy, see "Limitations of the navigation system" on page lii. xc