Owners Manual
Page 506
... you discover any leakage, have it repaired immediately by a qualified technician following precedures in Lexus service and repair publications. Therefore, periodic checks and replacement of the transmission fluid are a completely sealed unit. Transmission (GX, LX) On GX 470 and LX 470, the transmission and transmission fluid are not required, and there is no dipstick on...
... you discover any leakage, have it repaired immediately by a qualified technician following precedures in Lexus service and repair publications. Therefore, periodic checks and replacement of the transmission fluid are a completely sealed unit. Transmission (GX, LX) On GX 470 and LX 470, the transmission and transmission fluid are not required, and there is no dipstick on...