Well got Baby out of hibernation today as it's 75 degs today. Battery was a bit low (She started, but reluctantly) After starting it showed that the Stabiltrac needed service and all the indicators for the Stabiltrac in the tach were lit. Also Tach was inop. Brought her home and put the battery charger on her and pulled the ECM fuses #5 and #20....just like resetting fuel tables. After a few hours I pulled the charger, and put the ECM fuses back in and started her up. All the Stabiltrac lights were out and no message in the info center but, My CEL was lit. The Tach also was now working. Took it up to the parts store and had them read the CEL. It came up with a PO324.....Knock sensor. I didn't notice the engine knocking so I had him reset it. Will watch and see if it returns. Sooo has anyone ever experienced this sort of thing? I hoping it's all related to the low battery and all will be good in the future.