@Darthbenji Good point, maybe if people state if they have winter/summer tires, State of charge and ambient temperature and deviation from initial rolling radius you may get some meaningful data. You may find it takes some time to adjust. Early Tesla’s didn’t even like a different brand of the same size due to discrepancies in rolling radius despite them being as grippy as originals. You can at lest work out if it’s an algorithm. I don’t suppose any one has a CAN bus reader hooked into their car?
Which is exactly what I did. As far as I'm concerned there is no software issue or change in tire grip issue. And I think it's a lot of new folks that don't understand the full system and all the conditions of regen. All I think of is, in some cases it's not tripping the TPMS / Tire Size prompt. My car showed "psi: --" until the reset prompt came up.
Some folks are saying they see the dots. Well most folks know that means the car knows your battery is cold. And it also doesn't mean no Regen. It means reduced regen. And it's reduced based on how many dots you see. More dots more reduced.
One other thing folks should probably report is, when they did change to Winter Tires did they also change tire size.
So I should report my status here with that added info.
Here is a suggested Template.
TPMS Type (Winter): Tirerack (Continental 433hz)
TPMS Reset Prompt: Yes, I think it was 2 prompts, one for TPMS Reset (Yes/No) and one for Tire Size immediately after.
TPMS Pressure Status: Blank ("psi: --") until TPMS Reset, off by 1 pound after Reset.
Delivered Tire Size: 18" Aero
Winter Tire Size: 18" Aero
Winter Tire Type: Xi3
Model: P3D-
Temperature: Full Warm up (NO DOTS)
Regen Status: Working at all speeds.