I've just noticed that my TPMS light flashes on startup. I have never noticed this before I upgraded to 17.24.28. That's not to say that it has always been like that and I am just being a numpty. But it seems to have caught my attention. And I think the startup chimes are different. I could be imagining all this. The TPMS seems to be working normally: no readings until you drive for a few minutes and then the pressures get reported. My car: Model S 90D AP1 RHD Can you folks have a look at the attached video and let me know if your cars do the same....just to make sure I'm not going crazy? Dropbox - Tesla TPMS.mp4 Cheers, Marty. Sorry for the typo in the heading (TMPS should be TPMS). Can't edit the heading.