After a month of unsuccessfully trying to use the gps to find motels, gas stations and other points of interest, we ask Toyota why the touch screen buttons become dimmed and inoperable when we are driving. Toyota just informed us today, that it is a safety feature, which cannot be turned off. You must stop the vehicle, put it into park to access the points of interest information. The owners manual, and the gps manual do not discuss this major oversight in design. We would never have purchased the xle with gps had we known the gps would not work when you are moving.