NHTSA Complaint #11184671 — 2018 PETERBILT 579

THE MAIN ELECTRICAL HARNESS COMING OUT OF THE MAIN COMPUTER AND RUNNING THE ENTIRE SPAN UNDERNEATH THE CAB HAD LITTLE TO NO PROTECTIVE SHEATHING/CORD WRAP/ALUMINUM WRAP PROTECTING THE WIRES. THE HARNESS IS ROUTED THROUGH A U-BOLT TYPE FLANGE AS WELL AS HANGS NEAR SEVERAL METAL PARTS THAT, WHILE IN MOTION, RUB AGAINST THE WIRES CAUSING THEM TO FRAY. THIS IN TURN CAUSED SEVERAL ITEMS TO BEGIN TO SHORT OUT AND ALSO CAUSED NUMEROUS WIRES TO HEAT UP AND MELT. IT WAS DISCOVERED WHEN THE DRIVERS SIDE HEADLIGHT FAILED AND THE SAME SIDE RUNNING LIGHTS CAME ON AND STAYED ON. THIS ALSO CAUSED THE WASHER FLUID PUMP TO TURN ON AND RUN CONSTANTLY, HEATING IT TO THE POINT OF SCALDING TO THE TOUCH. NOT HAVING ANY TYPE OF PROTECTIVE WRAP AROUND THE HARNESS COULD CAUSE FRAYING AND A POTENTIAL FIRE AS WELL AS SEVERAL MODULES TO FAIL AS IT DID IN THIS CASE. *DT CONSUMER STATED PETERBILT WARRANTY(1 YEAR/100,000 MILES) WAS NOT COVERED UNDER WARRANTY.*JB