NHTSA Complaint #10985497 — 2017 GMC ACADIA

MY 2017 GMC ACADIS 6 CYLINDER AWD HAS EXCESSIVE VIBRATIONS THAT OCCUR AT 1400-1600 RPM AND AT VARIOUS SPEEDS.IT SEEMS LIKE THE TRANSMISSION REFUSES TO SHIFT AND IT LASTS FOR UP TO A QUARTER MILE.VIBRATION IS MOST PRONOUNCED AT SPEEDS OF 55-60 MPH THE DEALER DIAGNOSIS SAYS IT IS FUNCTIONING NORMAL. THE STRUTS WERE REPLACE AT1390 MILES AND MOTOR MOUNTS ADJUSTED, PROBLEM REMAINS, AUTO BROUGHT TO DEALER FOR RECALL AS PER BULLETIN 17109 BUT IT STILL VIBRATES EXCESSIVELY. THE LEAD MECHANIC AT THE DEALERSHIP SAID THE AUTO ADJUSTS TO THE DRIVER AND SAID THE VIBRATIONS WILL STOP AT ABOUT 2500 MILES. THE CAR NOW HAS 2900 MILES AND IT STILL FEELS LIKE THE TRANSMISSION IS GOING TO FAIL. THE VIBRATION IS UNCOMFORTABLE AND ALTHOUGH THE DEALERSHIP SAID THE CAR IS SAFE IT DOES NOT FEEL SO.IT SEEMS IMPOSSIBLE FOR A VEHICLE TO BE FUNCTIONING PROPERLY WITH THIS CONTINUAL ERRATIC VIBRATIONS.