RENTED AUTO FROM ENTERPRISE LEASING COMPANY OF ST. LOUIS, DROVE 412 MILES WITH THE SEAT HEATERS ON. WHEN I GOT OUT OF THE CAR I FELT AN INTENSE BURNING SENSATION ON MY LOWER BACK. BEFORE BED MY HUSBAND LOOKED AT IT AND SAID IT WAS VERY VERY RED. I AM A BACK SLEEPER SO I HAD A VERY RESTLESS NIGHT. BY THE NEXT MORNING THE RED SPOTS HAD BLISTERED AND ARE PAINFUL. I CALLED GM CUSTOMER SERVICE TO REPORT THE INCIDENT AND THEY TOLD ME THAT I WOULD HAVE TO TALK TO ENTERPRISE LEASING COMPANY OF ST. LOUIS; WHICH IS JUST RIDICULOUS - ENTERPRISE DID NOT MAKE THE CAR! EVENTUALLY I WAS GIVEN CASE NUMBER 8-1897481531. I HAVE READ OTHER REPORTS OF GM BEING SUED FOR BURNS FROM SEAT HEATERS, GM SHOULD BE REQUIRED TO INSTALL A SAFETY FEATURE TO PROTECT CONSUMERS FROM THIS FEATURE.