Hi, I’ve been having issues with my 2017 Silverado V6.
About a year ago I was driving and my battery light came on and I wasn’t in town so I went to the only place that would put in a battery which was Walmart. Once I left the next day or two my pass door light was on when clearly the door was shut and the window stopped working. Fast forward a month or so my thermostat got stock closed and ended up replacing it twice in 2 months. Now when I start my vehicle up the fan turns on and the thermostat doesn’t show a temp so it stays on. Once you shut the truck off the fan continues to run for about ten min and then shuts off. Once I drive it about 2 or 3 times the battery ends up being so low and I have to jump it to start it. I’ve also replaced the temp sensor. I unhook the battery for a while and once I hook it back up the fan doesn’t turn back on for about 3 trips. Then it turns back on. I’m not sure what to do or what route to go next.

Thank you