CHEVROLET

GCUS-3-421

2016-01-29 · NHTSA 10080083

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

28340 - SERVICE UPDATE. RRPROGRAM THE ENGINE CONTROL MODULE. AN ENGINE MISFIRE CONDITION COULD OCCUR DURING THE ENGINE MAINTENANCE MODE (EMM) AFTER THE VEHICLE HAS BEEN SITTING FOR AN EXTENDED PERIOD OF TIME CAUSING THE CHECK ENGINE/SERVICE ENGINE SOON LIGHT TO ILLUMINATE, A ROUGH OR HIGH IDLE CONDITION, AND DIAGNOSTIC TROUBLE CODE (DTC) P0300 TO SET. A SOFTWARE UPDATE IS AVAILABLE TO CORRECT THIS AND ALSO A CONDITION WHERE DTCS P040B, P041B, P1427 AND P1429 MAY SET INCORRECTLY.

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.