Driver's side upper back seat cushion noise/squeaking
 

I wonder if anyone else has this issue - whenever I get in and out of the driver's seat there is a plastic squeaking noise. I've narrowed it down to the top half of the seat where it can also move the headrest. The Passenger side is firm and makes no noise, but I can feel something in the back upper part of the DS that doesn't seem to be connected or may be loose/broken.

I'm the main driver of the car (168lbs) and have always been gentle going in and out of the car. Coincidentally the Fit has seen the dealer about 3 times (A/C and airbag) in the last 1-2 months... and I've seen big guys get in and out of it.

Has anyone had the same issue and take it to the dealer to get checked out?

Same on my 2013. Started noticing the sound last year. No big deal. I have not and I won't take it to the dealer as they probably would have laugh at me...

Yes
 

This is coming from the metal wires (look like coat hanger thickness to me) that brace the back of the seat cushion. Mine did the same thing. I fixed mine by unzipping the back of the seat cushion and putting silicone grease (NOT areosol spray...you need grease) between the metal wires and the plastic seat cushion plate. The annoying squeak is coming from these metal wires and this plastic plate rubbing together. After you unhook the bottom of the seat cover and unzip it you will see exactly what i'm talking about. It takes about 15 minutes to did this procedure.