Premium Member 2009 SLK350
on my 2009 350 will the TPMS reset also recalibrate the sensors?
If you have the cheap version of TPMS, the one that does not show the actual tire pressure, that version uses the ABS sensors. They measure the rotation speed of each wheel. If you a flat tire that wheel will spin faster because its circumference is smaller. A reset for this system just means that you tell the system that the tire pressures are now okay and that it should take the current rotation speed of the wheels as a reference.Not the numeric pressures but the idiot light version. the flat tire icon.