2011 Toyota Tundra CrewMax Navigation Manual - Page 524
2011 Toyota Tundra CrewMax Manual
Page 524 highlights
10 05.28 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 182 through 183. 2