ROTC scholarships and academic probation?

I would not rely on them getting a notice. I am sure it would come up- but it would be best if you went to the ROTC department and talk to the PMS or your main instructor about your problem and they should do what they can to help you with your grades. Word of advice- especially if you want something done right with your military career (or anything involving your life etc) don't rely on others to tell you what you need to do. If you know something needs fixed. Go fix it. It's okay to ask for help if you need it.