NHTSA Complaint #10944186 — 2016 CHEVROLET SILVERADO 3500

THE SAFETY CONCERN ON THIS ISSUE IS THE SIGNIFICANTLY ELEVATED POTENTIAL FOR LOSS OF VEHICULAR STEERING CONTROL. AFTER THE TRUCK WAS DRIVEN TO 1,700 TOTAL MILES ON THE ODOMETER, THE TRUCK'S STEERING CONTROL BECAME SLOPPY IN 70MPH + INTERSTATE HIGHWAY DRIVING RESULTING IN HIGHWAY WANDER SIMILAR TO DRIVING IN WIND GUSTS OF 60 MPG+ (WHERE AT TIMES IT IS DIFFICULT TO MAINTAIN POSITION IN YOUR HIGHWAY LANE). SUBSEQUENT EXAMINATION OF THE STEERING BOX SHOWED THAT THE STEERING GEAR PITMAN ARM LASH ADJUSTMENT SCREW ON THE STEERING BOX HAD BACKED OFF APPROXIMATELY 3/8", THE STEERING HAD EXCESSIVE PLAY AND THE STEERING BOX WAS LEAKING POWER STEERING FLUID. THE STEERING SYSTEM ON THIS TRUCK IS A DIGITAL STEERING ASSIST SYSTEM. THE TRUCK WAS RETURNED TO THE DEALER AND UNSUCCESSFULLY (NO CHANGE IN FUNCTIONALITY) REPAIRED UNDER GM TSB #PIT5501C (REPLACEMENT OF THE STEERING BOX) AND SUBSEQUENTLY SUCCESSFULLY REPAIRED (TO DATE) UNDER GM TSB #PIT5501D (REPLACEMENT OF THE STEERING GEAR PITMAN ARM SHAFT WITH AN UPDATED DESIGN GM P/N 84240812. CURRENTLY HAVE APPROXIMATELY 5,500 TOTAL ODOMETER MILES ON THE TRUCK. *TR