Hi everyone. I have a 2021 Silverado. A few issues. I have two remotes for it, with remote start. When the truck is parked outside my house, about 20 feet from my window or front door, the remotes don't tend to work. Often times I open the front door and point it directly at the truck and they still wont work, and I need to go within 5 feet from the truck to get the remote to lock/unlock/or start the truck. Other times, they work fine from inside the house. Similar issue in parking lots - sometimes it will work from 50 feet away, other times I have to be within 5 feet of the truck. I have tried changing batteries. It is the same with both remotes, so it makes me think it is a truck issue. Any ideas?
Separately, the radio reception is awful. I live in a very rural area, but in my driveway my 2016 GMC Terrain will still pick up 20 stations, my 2009 tacoma will pick up 20 stations, my 1970's radio in the garage will pick up 20 stations, and my brothers 2022 Sierra will pick up 20 stations. My 2021 Silverado will get 2-3 maximum. Dealer says there are no updates available for the radio. He said my antenna looks fine and its not sending any codes. Any ideas?