2006 Toyota Tundra Owners Manual - Page 325
2006 Toyota Tundra Manual
Page 325 highlights
'06 TUNDRA_U (L/O 0508) Samoa: 5 Guam: 8 Saipan: 8 After calibration, leaving the system for several seconds returns to the compass mode. CAUTION Do not adjust the display while the vehicle is moving. Be sure to adjust the display only when the vehicle is stopped. Zone numbers 325 2006 TUNDRA from Oct. '06 Prod. (OM34458U)