Tim Posted October 11, 2020 2017 NV 3500 Passenger SL The trailer running lights went out. I took it to the dealer after not finding the fuse myself. The service manager spent an hour figuring it out. That failed They scheduled an appointment . The problem was solved and i got the van back working , they however didn't inform me of the location of the fuse . I am now trying to find the fuse location in case it happens while im out traveling. Quote Share this post Link to post Share on other sites