SabiKoehler
Genesis Coding Error
Summary of the thread
A 2015 Hyundai Genesis owner is experiencing persistent fault codes, engine light warnings, and speedometer issues, suspecting a coding error in the vehicle's software. Despite clearing the codes, they reappear, suggesting a deeper issue. A workshop visit confirms incorrect vehicle coding as the cause, which is resolved through professional recoding, restoring the car to normal functionality.
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4 comment(s)
SabiKoehler (community.author)
Yeah, I cleared the codes, but they came right back after a few minutes. The scan tool is showing a coding error, which is why I think the whole car is having a meltdown. It's almost as if the car thinks it's another car.
AndiHillerTop
Ah, a coding error... that's beyond my limited skills, haha. When mine was doing weird stuff, it wasn't a coding problem. If the codes keep returning even after clearing them, I'd strongly suggest taking it to a workshop. They'll have the proper diagnostics to really dig into the coding side of things. Don't want to mess something up even worse!
SabiKoehler (community.author)
I appreciate the insight. Looks like a workshop visit is definitely in order. I took your advice and brought it in, and you were spot on – incorrect vehicle coding was the culprit, and the repair set me back 360€. They recoded it, and everything's back to normal now.
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HYUNDAI
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GENESIS
AndiHillerTop
Sounds frustrating! I've got a Genesis too, though not sure of the year, and I had something similar happen a while back. Kept getting random errors and the engine light. Did you try clearing the codes to see if they come back? Also, which fault codes are you seeing?