To bump this older thread re the 46 psi "mystery" for LT285/70/17E tires.
Clearly, by the book the psi front/rear should be 40 psi.
Toyota says 46 psi so TPMS lights up at 35 psi.
So the correct procedure should be like:
1. Inflate to 46 psi.
2. Reset TPMS so it remembers 46 psi.
3...