No issues if you don't do the ZPC right away. You just won't have CC or Downhill Assist until you do the calibration.Awaiting on CC module from Bell. I think I know the answer but to confirm: I will install the CC in my driveway but will need to drive about 3 miles or so to a parking lot to do the ZPC with the OBD port shorting method (the straight part is the issue). I will try to do the ZPC in my drive but expecting it to fail as I don't have a straight part of a road for about 1/4 mile. I don't think that will affect anything as I won't need CC before the ZPC. I've seen other posts where folks drove quite a bit before the calibration with no ill effects. Am I on the right track here?