United States 78V247000
General Motors, LLC
The problem
A GASKET WAS MISTAKENLY PLACED BETWEEN THE BRAKE MASTER CYLINDER AND THE POWER BOOST WHICH PREVENTED THE TWO PARTS FROM FITTING TOGETHER PROPERLY. DAMAGE MAY HAVE RESULTED TO THE MOUNTING EARS OF THE MASTER CYLINDER AND THE HYDRO-BOOST. THIS CONDITION COULD LEAD TO BRAKE FAILURE.
What owners should do
THE DEALER WILL INSTALL A NEW BRAKE MASTER CYLINDER AND HYDRO-BOOST UNIT, FREE OF CHARGE, ON ALL AFFECTED VEHICLES.
Units 67