- Buick Ownership
- 2017 Buick Regal Premium II-Trifecta Tune
My 2011 has find of a funky smell when you turn on the heater/ac. Didn't notice it so much in the winter at all, but now that spring has sprung, it's there, especially with the AC. It's almost kind of a vinegar smell. Someone told me this was kind of normal with the new refrigerants they use, but I am having a hard time buying it. Anybody have any input or similar issues?