Of course not. In fact, most UAW contracts encourage members to first take up concerns with their immediate supervisor. But if your supervisor gives you the runaround, then you have the union to back you up. Here’s an excerpt from the GM contract that describes how it works: “If your supervisor doesn’t address your concerns, you can ask your union steward to assist you in resolving the problem. If your supervisor calls you into an investigatory meeting, you have the legal right to a union representative.”