VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS. A LOSS OF THE TURN SIGNAL FUNCTION CAN OCCUR DUE TO A TURN SIGNAL FLASHER THAT IS NOT COMPATIBLE WITH THE TURN SIGNAL SWITCHES THAT ALLOW THE BRAKE LIGHTS TO OVERRIDE THE HAZARD WARNING LIGHTS. IF THE HAZARD WARNING LIGHTS ARE ON AND THE BRAKE LIGHTS ARE ACTIVATED, THE TURN SIGNAL FLASHER SENSES AN OVERLOAD CONDITION AND BECOMES DISABLED UNTIL ALL ELECTRIC LOADS ARE REMOVED.
RiskFOLLOWING DRIVERS MAY NOT BE AWARE OF THE TRUCK'S TURNING INTENTIONS INCREASING THE RISK OF A CRASH.
Fix DEALERS WILL INSTALL A TURN SIGNAL FLASHER THAT IS COMPATIBLE WITH TURN SIGNAL SWITCHES THAT ALLOW THE BRAKE LIGHTS TO OVERRIDE THE HAZARD WARNING LIGHTS.