My right hand light does stay red until the GPS and ADAS has calibrated and that can take a few minutes (it is not quick). If I have an event in that time it will flash red but since I have set the speed limits all the way up it is generally only the collision detection which guess off when I hit a pot hole. Once it has calibrated the light turns blue but will still flash if an event happens. Again this is rarely with the speed turned up. From memory it would flash a lot when I had the regular ADAS settings. The colour was related to the calibration only though.
Direct answer to second part - it auto calibrates but takes a while.
Direct answer to second part - it auto calibrates but takes a while.