My brake controller will hold the trailer brakes at about 25% when at a stop with the brake pedal pressed. If yours does a similar thing, you could be hearing the release.
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2021 Transcend Xplor 247BH
Husky WDH with Sway Control
2021 Chevy Silverado 2500HD LT 6.6L V8 Duramax
Forever in my memory. Forever in my heart.
Laurie J. Wood 3/22/67 - 8/23/19
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