Re: (Eric_H)
No, an ECM update does not affect the SUM. And, if you did happen to get a SUM recalibration, if your headlights are pointed where you want them, then you're good to go.
Tom.
| Quote, originally posted by Eric_H » |
| I had a new software download installed because of a SERVICE ENGINE warning. Should I have turned my headlights back down prior to this upload? |
No, an ECM update does not affect the SUM. And, if you did happen to get a SUM recalibration, if your headlights are pointed where you want them, then you're good to go.
Tom.
