Defect summary
ON THE AFFECTED VEHICLES, THE WIRING ASSEMBLY TO THE FLOOR MOUNTED HEADLAMP DIMMER SWITCH MAY BE TOO TIGHT; SHOULD WIRES DISCONNECT, THE HEADLIGHTS WILL NOT OPERATE.
Remedy
THE DEALER WILL MODIFY THE DIMMER SWITCH WIRING WITH A WIRE EXTENSION ASSEMBLY AT NO CHARGE TO OWNER.
Notes
VEHICLE DESCRIPTION: MEDIUM TRUCKS, HEAVY TRUCKS AND BUS CHASSIS.SYSTEM: LIGHTING AND COMMUNICATIONS; HEADLAMP DIMMER SWITCH WIRING HARNESS.CONSEQUENCES OF DEFECT: DRIVER FOOT PRESSURE ON OR ABOVE THE DIMMER SWITCH MAYRESULT IN DISCONNECTION OF THE WIRES AND SUBSEQUENT LOSS OF HEADLAMPILLUMINATION. HEADLAMP FAILURE COULD CAUSE A VEHICLE CRASH.
Source: NHTSA ODI recalls file, campaign 83V016000. Text as published by NHTSA.