My 2009 FEH has 55,000 miles. At Christmas 2011 the wrench light came on but went off after I restarted. A month later it came on again and then went off. I called the Ford dealer and they said to bring it in when the wrench light stayed on. It did a month ago. The Ford dealer put the FEH on the computer but no codes showed up. The dealer said to bring it in if the wrench light blinks. It lights up occasionally but does not blink. I plan to drive across the country in June and I am worried that something will happen somewhere out in the country. Any thoughts?