VOLUNTARY SERVICE CAMPAIGN - ECM LOGIC UPGRADE ? SORENTO (XMA) 3.5L MPI (SC106) - This bulletin provides information related to an upgrade of the ECM software on some 2011~2013MY Sorento (XMa) vehicles, produced from July 12, 2010 through January 31, 2013. During a specific set of operating conditions, it is possible under rare circumstances when braking and bringing the vehicle to a stop, for the engine to also stop.