what type of attorney would I need for a case where my car seating heating element is burning my skin

Any personal injury attorney could handle this matter.  The question is if you want to pursue.  An attorney would need to know the facts regarding how you were injured.  Was there a malfunction etc?  Also, what are the nature of the burns.  If they were minor burns (i.e first degree) then you may not want to pursue.  Speak with an attorney.