I brought my jeep to my mechanic to get an annual inspection done. However, when I went to pick it up, he said that the check engine light was on, and that when he went to clear it, the odometer reset to 0, and that I should put some miles on it this weekend and that he would do the inspection next week. When I brought the car in, the check engine light definitely was not on, and it sounds odd to me that the odometer would get reset as a result of trying to clear the light. I'd like to get the odometer back to where it was so that I can sell it in the future. Is this possible to do? And is there anything weird about the odometer getting reset like this?