Hi,there have been a few TSB's for problems with the serviceXXXXXlight coming on. They have had to replace modules,and sensors,and reprogram with updated software. I will send you the latest TSB that I could find. The problem needs to checked with factory scan tool to be sure, the code will guide the mechanic to what repairs are needed. Here is the TSB,I hope this helps.I know how you feel,but any make can give you these problems,they systems are becoming more complex,and costly to repair.