Defect Involved

General Motors has determined that certain 1991 Chevrolet S/T Trucks (Blazer / Pickup / Extended Cab Pickup) may fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) 212 "Windshield Mounting". These vehicles may exhibit poor bond adhesion between the windshield glass and mounting, which could allow the windshield to separate from the vehicle during a collision. Should windshield separation occur during a collision, an unbelted occupant could he ejected from the vehicle and personal injury could occur.

In addition to the windshield retention, it has also been determined that a customer satisfaction issue may be present regarding the retention of the stationary side windows (S/T Blazer/Extended Cab Pickups with non-moveable side windows).
Both of the above conditions were caused by improper primer having been installed on the metal surface of the side window and windshield opening, resulting in low adhesion to the metal surface.

To correct these conditions, it will be necessary to remove and reinstall the windshield and any stationary side quarter windows on all involved vehicles.