So I just got a 2021 Crew Cab RST, and I noticed that my GPS speed via my waze app was 1mph slower then what my trucks digital display reads. I know its not my phone/waze as they matched in my 2020 Silverado LT and in my wifes 2021 Traverse LT. And there is one of those speed radar trailers that sit on the side of the road and flash red when your going by to fast, and I set my cruise as I passed it and it showed a mile under what the dash read. Is there a fix for this?