17335-Customer Satisfaction Program. Certain vehicles, equipped with 10-speed automatic transmission (RPO MGL), may have a condition in which the transmission was overfilled during production. If an overfill condition exists the transmission fluid may become aerated and may cause high transmission temperatures, gear slippage, and erratic shifting. In addition, performing limit-handling maneuvers may produce a fluid overflow condition through the vent tube. Dealers will inspect, and if necessary correct, the automatic transmission fluid level.