Originally Posted by Mr. Dan
Opinions aside, I have some information that applies to "my truck" and those like it. I don't know how it relates to "your truck" or "the truck" as mentioned above. Here are some pics of info in my owner's manual (I assume they are facts).
Does my truck know when a trailer is connected? YES
Will Tow/Haul mode and/or running headlamps cause my truck's alternator to increase its VOLTAGE output? YES
Thank you for the info. I stand corrected. I have many years in a GM service depart but have been retired for quite a few. Obviously things have changed..
2015 Chev Silverado 3500 dually D/A
2016 Cedar Creek 36CK
B&W Patriot 18K, Trail-Aire pinbox,
Level up, dual panes & all that stuff...