2004 Toyota Tundra Owners Manual - Page 421

'04 TUNDRA_U (L/O 0309) Checking tire inflation pressure Keep your tire inflation pressures at the proper level. The recommended cold tire inflation pressures, tire sizes and the combined weight of occupants and cargo (payload) are described in Section 8. The recommended tire inflation pressures and tire sizes are also on the tire information label. You should check the tire inflation pressure every two weeks, or at least once a month. And do not forget the spare! Standard and double cab models Access cab models 421 2004 TUNDRA from Sep. '03 Prod. (OM34426U)