Hello everyone, new here and just got my first Jeep a week ago, a 2010 Jeep Liberty Limited. Im a Jeep guy for good after only a week, so glad I bought it. One problem, my service 4wd light, abs light and traction control lights are all on on my dash. My mechanic put a computer on it when I brought it over on a test drive, and said it wasnt throwing any codes. The 4wd does not work at this time, any ideas?