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Discussion Starter · #1 ·
I am new here and hope I post this in the proper place. I have a 2015 Duramax dually and pull a 16k trailer with elec/hyd disc brakes. There’re is a lull of 2-4 sec before I can feel the trailer brakes activate when casually to moderately stopping. I think it’s maybe air in the trailer brake lines but my buddy keeps telling me there is a selection I should be making in the truck menu for either elec or elec/hyd disc brakes. Has anyone heard of this? Thx
 

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Not with the factory ITBC. Aftermarket units have the selection capability tho.
 
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