SOME VEHICLES MAY EXHIBIT A VIBRATION ON THE DRIVER-SIDE REAR VIEW MIRROR (A) WHEN DRIVING ON A ROUGH ROAD OR HIGHWAY. THE MIRROR VIBRATION MAY GET WORSE WHEN VEHICLE SPEED IS OVER 65MPH (105KM/H). DURING THESE CONDITIONS, CUSTOMERS MAY COMPLAIN THAT THE DRIVER-SIDE REAR VIEW MIRROR IS DIFFICULT TO SEE.