I'll throw in my latest...
Hated the climate control system in this GC since picking it up in Sept 2013 ( '14 model year). Move it up 2 degrees in "manual" mode ...full heat. Move it down 2 degrees...full cold. Always chasing a "comfortable" cabin. Worst ever.
Got a TSB done about 4 months ago and this GC has redeemed itself. Just perfect. No complaints.
A couple days ago I remote started the GC and I get in and no seat warmers/ steering heat...and its 23 degrees outside. Up until now the outside air temp had been great. Not the biggest deal, but now the climate control is chasing a cabin temp like it was last year.POS
So as others have said, this issue may all be inter-related.
Going to get a re-flash soon, along with whatever recall has just been announced