BUICK, CADILLAC, CHEVROLET

19NA246

2019-12-12 · NHTSA 10170712

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 technical bulletin provides a procedure to correct a condition of engine runs rough, misfire or MIL Illuminated with P0300 set.

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.