NOTE: Any and all 1992 Chevrolet Chevy Van G20 Technical Service Bulletins (TSB) are an advisory issued by Chevrolet for use by dealership service departments. Bulletins differ from recalls in that they are not considered safety or emissions issues and they usually apply only when your vehicle is in its warranty period. TSBs usually but not always address a recurring problem. Read more about TSBs and Secret Warranties.