2009 Toyota Corolla Navigation Manual - Page 188
2009 Toyota Corolla Manual
Page 188 highlights
COROLLA_Navi_U(L/O 0801) 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 178 through 179. 2