2015 HYUNDAI EQUUS Electrical System Problems

WHENEVER IT GETS HOT IN THIS AREA, MY VEHICLE MALFUNCTIONS. FIRST THE DASH BUBBLED AND HAD TO BE REPLACED. THE LEATHER ON THE DRIVER DOOR BUBBLES UP AND HAS BEEN REPLACED.. IT IS BUBBLING AGAIN ON THE DRIVER DOOR BUT IS NOT COVERED BY THE EXTENDED WARRANTY. BOTH HEADRESTS HAVE POPPED OPEN. ONE HAPPEN WHILE AT THE CAR WASH AND THE OTHER HAPPENED WHILE I WAS IN THE GROCERY STORE. BOTH TIMES THE CAR WAS AT REST AND WINDOWS UP.. IT COSTS $1600 TO REPLACE. THE DRIVER WINDOW SWITCH DOES NOT WORK WHEN HOT OUTSIDE. HAD IT CHECKED BY THE DEALERSHIP AT LEAST 10 TIMES. MAINTENANCE AGENT WITNESSED IT BUT BY APPOINTMENT TIME WAS NOT ABLE TO DUPLICATE THE PROBLEM SO THE WARRANTY REPAIR NEVER OCCURRED. ADDITIONALLY,, THE RADIO GOES OUT AND FRIES LIKE A CB. COMPLAINED TWO YEARS ABOUT THIS ISSUE BUT AGAIN, THE MECHANIC COULD NEVER DUPLICATE THIS...

MAY 4TH 2019 VEHICLE FOUND DEAD AND WOULD NOT START. NO SIGNS OF ANY BATTERY ISSUES IN THE PAST FEW DAYS. THE VEHICLE WAS TOWED DIRECTLY TO THE SERVICE DEPARTMENT AT EMPIRE HYUNDAI LOCATED IN FALL RIVER, MA. VEHICLE CONFIRMED BY SERVICE DEPARTMENT TO TURN OVER, HOWEVER NO LIGHTS OR CLOCK AND NO POWER. THEN ALL WENT DEAD FOR THE SERVICE DEPARTMENT. SERVICE MANAGER INFORMED THAT HE WAS NOT ABLE TO PROVIDE THE ROOT CAUSE FOR THE ONGOING ELECTRICAL ISSUE, AND THE SPECIFIC CAUSE OF THIS INCIDENT. THE SOLUTION THAT WAS PROVIDED WAS TO INSTALL A NEW REPLACEMENT BATTERY. WHEN THE BATTERY WAS INSTALLED, THE 'ISSUE' SEEMED TO GO AWAY. THIS IS A RE-OCCURRING ISSUE RELATED TO THE ELECTRICAL HARNESS, AND THAT IT IS UNLIKELY THAT REPLACING BATTERY IS THE SOLUTION TO THE PROBLEM. EMPIRE'S SERVICE DEPARTMENT HAS DOCUMENTED THE ONGOING ELECTRICAL ISSUES AS THE CAR HAS BEEN BROUGHT IN...