TexDvlDog

Last 8 of VIN: JF149539

Thanks for the input guys, I’m pretty sure the harness is factory as well as the tow mirrors because when I removed the entire mirror assembly and door panel on both sides, the harnesses was all intact with connections going to each LED light and the harness was wrapped tight as a factory harness should be. I may have to check that extra ground wiring. Since I have no schematic I’ll have to research and find one. I’m gonna figure it out and when I do, I’ll let y’all know what I found.

You may not think this would cause it but I bet top dollar it’s your front shocks. I have had an issue similar to your issue only it would happen when I would apply the brake at high speeds (i.e. exiting a freeway) and I can feel in the wheels and shake/vibration that would travel up to my steering wheel. And it would get worse as time went on, and me replacing pads/rotors and balancing all tires and rotating. This happened on 2 different types of vehicles that I’ve personally owned and 1 that my brother experienced the same issue on his car and it was fixed when he replaced the front shocks. It happened on a 2015 Ford F-250/2008 Dodge Charger/2012 Toyota Avalon. Front shocks were the cause.

I recently bought a used 2018 Silverado 2500 HD Duramax from the dealership. The truck came with Tow Mirrors, however, the LED turn signal, LED Parking lamp and the Cargo Lights do not work on both sides. The adjustable power mirrors do work on both sides. I removed the door panel to see if everything was connected and all looked normal. I was trying to find the fuse to see if it may be blown but I can’t find that fuse either. I am mechanically inclined. Also, the dealer said the tow mirrors came with vehicle as per the vin. Any help would be great.