NHTSA Investigation RQ04010

TAILGATE SUPPORT CABLE BREAKAGE

ODI IS UPGRADING RQ04-010 AND OPENING AN ENGINEERING ANALYSIS TO FURTHER INVESTIGATE THE TAILGATE SUPPORT CABLES INSTALLED IN 1998, 1999, AND PARTIAL YEAR 2000 SILVERADOS AND SIERRAS (C/K MODELS).GENERAL MOTORS IS CONDUCTING RECALL CAMPAIGN 04V-129 TO REPLACE THE TAILGATE SUPPORT CABLES ORIGINALLY INSTALLED IN CERTAIN MODEL YEAR 2000 - 2004 SIERRAS AND SILVERADOS.GENERAL MOTORS HAS ADVISED ODI THAT THE MATERIALS USED FOR THE TAILGATE CABLE SHEATHING INSTALLED IN C/K MODELS HAD INADVERTENTLY CHANGED IN OCTOBER 1999, INCREASING THE PROPENSITY FOR VOIDS IN AND AROUND THE GALVANIZED STEEL CABLE STRANDS WHICH CAN ALLOW MOISTURE TO WICK AMONG THE STRANDS, LEADING TO OXIDATION AND WEAKENING OF THE STRANDS.SINCE ODI INITIATED RQ04-010 IN SEPTEMBER 2004, ODI HAS RECEIVED 10 ADDITONAL NON-INJURY COMPLAINTS ON MY 1998-99 C/K VEHICLES, BUT NO ADDITIONAL INJURY COMPLAINTS.DURING THIS SAME PERIOD, GM HAS RECEIVED 564 NON-INJURY AND 35 INJURY COMPLAINTS. ODI HAS RECEIVED 6 INJURY COMPLAINTS AND 38 NON-INJURY COMPLAINTS FROM OWNERS OF MODEL YEAR 2000 C/K VEHICLES AND REQUIRES FURTHER INVESTIGATION TO DETERMINE WHETHER THESE INCIDENTS OCCURRED IN VEHICLES WITHIN THE SCOPE OF CAMPAIGN 04V-129 OR SHOULD BE ADDED TO THE INJURY SUMMARY FOR RQ04-010.

An investigation is a separate record from a recall and from a manufacturer communication. A manufacturer campaign to repair a safety defect or a failure to meet a federal safety standard.