17019 02 - Customer Satisfaction Program. Certain vehicles equipped with a 1.5L LFV engine may have a pre-ignition condition that could cause piston damage. If this condition occurs, the vehicle may perform poorly and oil consumption could increase. In addition, a service engine light may illuminate indicating an engine misfire. If the condition is present, and the repair below is not completed before multiple pre-ignition events occur, a piston may be damaged and the engine may need to be repaired or replaced. Dealers are to reprogram the Engine Control Module (ECM) and change the engine oil with ACDelco dexos 1 Full-Synthetic motor oil of the part number as indicated in the parts section. It is very important that only oil with the correct part number is used in this repair.
