Here is some more info:
http://www.m3post.com/forums/showpos...01&postcount=6
And here for how to do the reset:
http://www.thetpmsforum.com/showthre...MS&p=77#post77
TSB Information:
TIRE PRESSURE MONITOR SYSTEM (TPMS) FUNCTIONAL CHANGES
TECHNICAL SERVICE BULLETIN
Reference Number(s): SI B36 02 11, Date of Issue: August 2011
BMW: All produced from July 19, 2011
GROUP: Wheels and Tires
SUBJECT
Tire Pressure Monitor System (TPMS) Functional Changes
INFORMATION
There has been a disruption in the production and supply chain of certain electronic components. These events have influenced global manufacturing facilities, including the automotive sector. In order to fulfill customer demand and maintain production schedules, BMW has made a change to the Tire Pressure Monitor System of certain vehicles.
Although the basic system operation and function remain the same, changes have been made to the vehicle's display elements when a low tire pressure condition occurs.