135NM iirc and any competent tyre shop can change Tesla tyres.
If you have to jack the car yourself, you will need a trolley jack not some cheapo jack as usually supplied with ICE cars, preferably with a puck or pad to prevent the rubber pad on the car getting damaged. Sometimes the car can be too low to get this under with a flat. With SAS set the suspension to high initially then when the jack is in place set the suspension to Jack mode on the display, to prevent the car trying to self level. Also be careful not to put the jack too far under the car as you can end up lifting via the battery which is not good.
If you are stranded you can call Tesla roadside assistance who will come out with a replacement wheel/tyre for you.
Useful if they are close enough to you to be practical, but note as I found out to my cost that they will only replace the wheel/tyre if they have the same brand in stock as you have fitted to your car and will also only offer this service if the tyres are factory fit or have been replaced by one of their SCs (which approx 50% more expensive than your local tyre shop! - so much for SCs not being a proift center for Tesla).
Replace tyres due to wear at your local tyre shop and Tesla will refuse to fit a replacement, but will tow you instead, which is sort of okay but only if you have time to waste.
Cheaping out by not supplying 80K vehicles with a tyre repair kit is complete madness imho and certain to infuriate unwary owners usually very much at an inconvenient moment.