Most important thing there is that your actions have to be aimed to not lose your operating privileges. So, best advice is to pay any fines and penalties imposed by a judge. In any case, you get a notification letter from DMV shortly after the process.
And it happens similarly when it is about a unresolved complaint?
Not quite. In that scenario, your case would be sent to an Automotive Facilities Inspector for a formal investigation. When that happens, is advisable to cooperate fully with DMV's inquiries.
I guess there could be a chance to just pay up and be free of furhter process, isn't?