It is on the US models, there is a sensor in each wheel. On the Canadian models, it just uses the ABS sensor to detect different rotation speeds.
I have an inflator, plus dynaplug. I also have the BMW mobility system with sealant (which would be a last resort)

__________________


| '23 Tesla MY LR Wife's Daily | '22 Tesla MY P - My daily |'09 E70 X5 35D - retired| '17 F15 X5 35D - Retired | '16 F15 35D - Work Horse |
|