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I've checked and it isn't in the place I've seen in older models online. Break lights turn on and off normally. 50K miles so out of warranty unfortunately.

My cruise control stopped working in my 2014 GMC Sierra 1500 5.3L SLT about a month ago. The cruise light comes on in white but wont engage the cruise control. I have looked in the user manual and have not found a reference as to a fuse that i could check. I called a local dealer and they recommended I take it in for diagnostic and pay $75. I would prefer not to if i can avoid it. I have read that this may be caused by a faulty brake switch that needs replacing. Does anyone know of another reason or solution? Where is the brake switch located? I'm new here so any information would help. Thanks..