How To Check Brake Pads Without Removing Wheel
You can sometimes check the brake pad thickness by looking through the spokes of the wheel. The outside pad will be pressed against a metal rotor, and you should be able to see at least 1/4 inch of the pad. If you see less than 1/4 inch of pad, it may be time to have your brake pads replaced. However, it is always best to have a professional mechanic check the brake pads as there may be uneven wear that is not visible without removing the wheel.