2021 equinox smoking

[hmm457]

My 2021 premium awd equinox started smoking out of the muffler yesterday at 29,000 and had a terrible smell. Oil looks ok and the coolant is full. Does anyone have any ideas what might be the cause or has had the same issue?

 

[Hey Vern!]

No codes or CEL? Did it smell like rotten eggs, raw fuel, or something else?

 

[PoManNox]

How many miles on it? Maintenance history?