MachineMan

We all know about the TPMS switch under the dash to zero/establish the tire pressure baseline after adjusting your tire pressure.

I asked my dealer today about buying an extra set of Lexus wheels for mounting winter tires (quoted $668 each plus new TPMS transmitters plus winter tires plus road force balancing plus taxes).

Dealer states there is a Season/Program 1 and a Season/Program 2 switch under the dash for linking to either the summer or winter TMPS transmitters. This is no mention of this in the manual. It is something the dealers do when you switch from summer to winter wheels.

Cruiter

If there is it's something new I don't know about. He could have it confused with one of the other cars too.

BertL

I agree, Jim. ...and I've been through the manuals at least 3 times cover-to-cover, and would have probably remembered something like that given the threads on TPMS and need for tire swaps in Winter and Spring. If true, it will be an undocumented capability on some RXs, and my 2013 does not have it that I can find (was just out there with a flash light!)

Road Rage

I can't remember what years had it what years don't.

Look under dash on passenger side. Labeled Main/2nd