how far can i drive it before it breaks down? on 2001 Mitsubishi Galant

My car says it has a Shift Solenoid C and b Malfunction, i usually drive once a week to my girlfriends house 40min away but now im afraid to go because dont want it to break down on me. theres no previous engine failure but im no car expert so i couldnt say.

Asked by for the 2001 Mitsubishi Galant
could be anytime, seek free diag and est from aamco then shop prices