Originally Posted by ric80
how do you reset?
While the engine is running, scroll thru the BC using the turn signal stalk (or use the iDrive). When you scroll over to the tire TPMS icon, hit the reset button on the end of the turn signal stalk, then DRIVE the car until the reset light goes off.
You can not reset the TPMS while the car is in motion. The car must be stopped. Reset then DRIVE the car for a mile or two.