CHEVROLET

21-NA-192

2024-10-02 · NHTSA 11010416

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

This service bulletin provides repair information to correct a customer concern of Top Not Secure DIC Message, DTC B19E4 SYM64 May be Stored in History in Convertibles.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.