Q. Re- question above. If one forgot and the vehicle battery was not disconnected before Shabbos, but no AC, lights, clocks or indicating dials turn on when opening the door, can one be lenient in case of need?
A. Horav Shlomo Miller’s Shlit’a opinion is that one can be lenient in need, since the vehicle’s computer does not provide at that time any essential need. This becomes a case of “eino miskaven” on a “p’sik reisha delo nicha ley,” or transgressing with certainty an act, that is not intended and not needed on a Rabbinical prohibition.
Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit’a