I can certainly attest to Chevy/dealership not appearing to care one iota about the seat issue. I have complained on numerous occasions to my dealership and all I got was "Sorry. Hehe, there's nothing I can do about that." If Chevy/GM cared, there would have been recall, or the like, notices to get them replaced.
I know of a few people that have had to either get their seat re-stuffed, purchase special seat cushions, or the like. I went a bit further than merely adding additional foam/re-stuffing wrt to my own resolution. Look here -> http://www.chevybolt.org/forum/162-chevy-bolt-ev-likes-dislikes/6506-front-seats-ouch-11.html#post99194
and the next 2 posts from me on that same page. I include a writeup of what was done and photos. The idea of having to spend an additional $700 US to make a seat in a $44K car _merely_ _tolerable_ is pretty poor form.
Note that what I did does _nothing_ for the back rest. The upholsterer that did the work on the bottom of the seat commented that he'd never seen a more poorly designed seat wrt comfort. He mentioned they couldn't touch the back bolsters because of the airbags since it would potentially negatively impact their deployment. So, while I can, _now_, tolerate the glute/thigh/hamstring experience, I'm now left with choosing which back-side of my ribcage gets tortured upon each driving session.
I would _LOVE_ to talk to the 'engineers' that a) designed the seats and/or b) approved their use. This individual(s) must possess the stature of a 10 year old girl or never sat in the thing.
Unless/until Chevy/GM fix make this right, it sickens me at the realization that I have wasted $44K.
Or however much depreciation I will have to bend over for, when the 2018 LEAF shows up and I have to trade the Bolt in on that.
EDITED: Punctuation and corrected 'not' to 'now' regarding the which side of ribcage to be tortured.