Car is ~ 3 years old, so unsurprisingly I got that warning on my dash. I replaced the battery and a week later, I still see that warning light. Do I need to reset the dash warning, sort of like after an oil change? And if so, how?

 

Nope, it means the battery you replaced it with probably isn't as good.

I've had this happen before. Usually running duracell or panasonic batteries seem to fix that issue.

 

Yep, I’ve had the same issue with certain cheaper battery brands that started giving up within a week after installation.

 

Been using Dollar store battery without issues and I do annual changeover.