The electric brakes on travel trailers and fifth-wheels are necessary to safely stop the combo, but they need regular maintenance and adjustments to continue operating properly. In fact, electric brakes need to be adjusted every 3,000 miles or annually, whichever comes first. During that mileage period, there can be some, although minimal, reduction in brake efficiency as the pads wear. So, snowbirds, for example, would likely exceed that interval during a winter trip south and back.
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