High Schooler failing - what should we do?

What should I make my failing son do over the summer? He is in high school. He failed a lot of classes. He is not special ed. He is lazy.

First, he should attend summer school. If he is failing now, he is mapping a tough route for himself after high school. Focus on making him graduate. Before school is out, make an appointment with his high school counselor to see what he needs to do to graduate. At this point, you might need to explore the school district’s alternative high school. The kids that fail in high school sometimes need to go here to get the credits to graduate. Also, make him get a job, the tougher the better. If he can do any manual labor, hauling, loading, digging, outdoor physical work, sign him up. You need to show him that by failing classes, he is not destined for an office job. No one will hire a child to run an office if he cannot pass high school English or Math. Check to see if any grocery stores need cart retrievers. This is a tough job and it may open a door for a career for him later since grocery stores have positions he might be able to move into if he gets his act together.