I've recently started having the same issue. I thought it might have been tied to my main Xenon bulb being out on the left (which I just replaced), but the issue persists. Was thinking it was an early warning or something before the headlight burned out, with it maybe pulling less current. Headlights are on and I get the check left DRL/parking light error. Not sure if it's close to when I use the turn signal but will pay attention next time I see it ding.
I never changed any of the codings in OBDEleven when I installed them in my car back in 2016 and they've been perfect since I bought them (non-lighting package highline trim, had halogens but bought a set of Ed's replicas with 35w Morimoto Elite HID kit - also using the CANBUS adapters). Going to try that tomorrow after some more research in the forums.
@Sarge you didn't happen to change any of your other exterior bulbs in your tails did you? I changed a few with LED bulbs and wondered if that was maybe causing any issues as I think the parking light is related to the tails? Could be wrong.