We own two Bolts, a 2017 LT
We own two Bolts, a 2017 LT and a 2018 Premier. Excellent cars! The 17 has 37k miles and the 18 has 14k miles. No issues at all with the 18. The 17 had the blind spot indicators worked on, which consisted of new foil tape covering them, which is supposed to direct them outward only. We're an interesting use case. We live in rural Colorado, 4 miles off paved roads. Lots of mud, snow, dirt, etc. The only issue I've had to address as a result of where we live is removing the front undertray and clearing off a lot of mud that had accumulated.
We've got the same rattles. Both sides of the dashboard have small panels and there are rattles under them, only noticable on our washboard roads.
We're very happy with our Bolts. They do not represent a sketchy first release. Zero maintenance should always be included in total cost of ownership when compared with ICE vehicles.