2010 Toyota Highlander Navigation Manual - Page 269
2010 Toyota Highlander Manual
Page 269 highlights
HIGHLANDER_HV_Navi_U Please be aware that all current vehicle navigation systems have certain limitations that may affect their ability to perform properly. The accuracy of the vehicle's position depends on the satellite condition, road configuration, vehicle condition or other circumstances. For more information on the limitations of the system, refer to pages 256 through 258. 2