United States 88V137000
General Motors, LLC
The problem
MELTING OF THE AIR BRAKE LINES CAN OCCUR WHERE THE AIR LINES ROUTE UNDER THE LEFT HAND FRAME RAIL NEAR THE EXHAUST PIPE.
Risk
THIS COULD RESULT IN PARTIAL OR TOTAL LOSS OF SERVICEBRAKES WITHOUT WARNING, WHICH COULD LEAD TO A VEHICLE CRASH.
What owners should do
REROUTE AIR LINE HARNESS AWAY FROM THE EXHAUST SYSTEM; REPLACE HARNESS IF HEAT DETERIORATION HAS OCCURED.
Units 1503