RWD with 18's and stock Pirelli setup experiencing low or no regen. This was Tesla's response via my tesla and not going through executive escalation. Took a while, but I here is the response:
Customer Support Tesla via dv4q0i5szw1nih.5-6dxxeaq.na55.bnc.salesforce.com
10:31 AM (1 hour ago)
to me
Hello (name redacted),
Thank you for reaching out to Tesla Customer Support. We do greatly apologize for the delay in responding to your email. We are working on adding functionality to our traction control system to detect winter tires and change the calibration to allow full regen while maintaining good vehicle stability. Until a software update is available, it is recommended to leave the vehicle in low regen mode through the UI to increase the consistency of behavior in this state.
This issue is not a safety concern as what we've seen is generally a continuous loss of regen that can easily be accounted for by the driver. Please visit our Support Page, which covers frequently asked questions about Tesla and your vehicle.? If you have any further questions or concerns, you can reach Customer Support at
[email protected] or by phone at 1-877-79-TESLA (83752)
(name redacted)| Service Support
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edit add: Tesla works on Sunday's. Kudos to them. Waking up on Sunday to see a support email is awesome. These people work hard and it is much appreciated by me. In an ever changing world, this keeps me Tesla strong. Perfection is impossible, but if your strive for it. Well maybe you can achieve excellence. Never have felt like a number as a Tesla customer. That will keep me in line for my next one.