I have a normal ICE car but it has a supplemental 12v battery for its start-stop system. When that battery gets low/close to EOL, an error message will pop up s

I have a normal ICE car but it has a supplemental 12v battery for its start-stop system. When that battery gets low/close to EOL, an error message will pop up stating that "steering assist may be limited." I haven't detected any difference in handling however. Perhaps it is a signal that the 12v battery is not fully charged on Teslas as well.