on our last camping trip my wife had to grab something from the trailer while I had the brakes applied. She noticed an easily noticeable hum coming from the brakes. Is this normal or a sign of something wrong? Thanks, Cor
Electric magnet brakes engaged - it's normal. When I need to change a tire, I have one of my kids in the truck and tell them when to brake and when not, so I can loosen or tighten the lug nuts - I know when they are engaged by the hum.