2016 Chevy Suburban LT Heated Seats failed. Need help!

Hello team!  I got a 2016 Chevy Suburban LT I bought Late 2024 and I absolutely love it. My Family and kits love it as well but this past winter the heated seats shorted out.  When it was super cold I put them on and they immediately turned off.  Later on after it warmed up a little the rear seat pads work but the bottoms no longer work.  Can I have help fixing this?  I think it is the harness that is bad? 

Help?