Need help on what to do. Got in the 60 this morning and found the thumb button on the emergency brake was gone. I think it flew off, but I couldn't find it. What to do? Just fixed my rear brakes, maybe that caused it? Maybe the plastic was finally ready to snap? Where to go next is the question. The spring was sticking out and I used a tire pressure gauge to push it in to release it this morning. Any ideas?