2019 Silverado LD, (55,900 mileage) Just started today, while driving, every few minutes the radio and the USB port (where my dash cam is plugged into) inside my upper glove box looses power. After roughly 10 seconds, power is restored and both turn back on.



I have owned my truck for a few years and this issue is the first I've had. No other electrical or mechanical issues to report anywhere else, as of right now. I've checked fuses/relays, all seem to be in working order. Any help would be greatly appreciated. Thank you

 

Rather than trying to track down why the radio and USB port are loosing 12 VDC, check to see if they are loosing ground instead. In other words, check to see how the ground connections are, It could be that one or more interior ground points has a loose nut on it.

You should be able to find the electrical diagrams and grounding locations by going to https://mcdowellpubliclibrary.org/chilton-auto-repair/ and entering your vehicle information and looking under the electrical section.

Good Luck!

 

After further review and over the last couple days I have determined that my radio and USB port issues only had intermittent power loss while my phone was connected to my radio via Bluetooth. Not sure why.

So I deleted/unpaired my phone from my radio then re-paired my phone. Since doing this, it would seem that all the issues I was having are no longer happening. I'm assuming there was some type of glitch, either with my phone or with the radio.

I will update this thread if anything changes.