BY LETTER DATED FEBRUARY 4, 1997, GM NOTIFIED NHTSA THAT IT WAS GOING TO RECALL 349,331 MODEL YEAR 1994 AND 1995 W CAR VEHICLES.THE W CAR MODELS OF CHEVROLET, BUICK, OLDSMOBILE, AS WELL AS THE SUBJECT PONTIAC GRAND PRIX MODELS ARE INCLUDED.THE RECALL (97V-017) WILL INVOLVE REPLACING ALL THE OLD STYLE WINDSHIELD WIPER SWITCHES WITH THE LATER IMPROVED SWITCH, WITH THE LONGER WIRING HARNESS.DUE TO GM'S SAFETY-RECALL ACTION, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.