Been having continuing problems with the Battery Saver Message and unable to use radio in accessory mode. Also, car would not start Sunday and had to charge battery. Took car in today thinking the 12 volt battery was bad since I had the upgrade charging TSB done the first of May. Car was checked and the service advisor said all was well except they had a new TSB to again attempt to fix the problem. They "Charged battery and performed TSB 13 - 7 - 11 Reprogrammed modules for not allowing battery to charge." I hope this works!