CB15LTZ

Happened to me, as well. Was on vacation and lost brakes as I pulled into a hotel parking lot. A local mechanic diagnosed a bad brake booster. Had that replaced and installed a new booster line. That helped me finish vacation and make it home. Once I made it home, I took it to a Chevrolet dealer. Got the news that I have a bad vacuum pump. I’ll be out about $900 total, assuming I don’t have to replace something else.