I've been looking for info on an OEM PPV Dual Battery Wiring setup for my 2020 Tahoe, and came across this. It doesn't really help me, but I thought you guys with 2015-2020 PPV's might like it.
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.