Is there a fob code to put the car into a battery saver mode ?

Hi everyone. I'm about to take ownership of my first Prius next week (hopefully) and have been reading up on everything I can get my hands on.

Somewhere along the line, I thought I saw that you can put the car (not the fob) into a power-saving mode by pressing Lock, Unlock, Lock on the key fob. But now I'm unable to verify that though searches on the forums.

Am I wrong, or did I somehow see something for a prior year's model ?

Thanks, and looking forward to joining the Prius community very soon.