15535 - Customer Satisfaction Program. Certain 2015 model year Chevrolet Silverado Crew Cab vehicles with Special Service Package (RPO 5W4) and with a 170 amp generator (RPO KW7) may have been built with a 150 amp generator (RPO KG4). As a result the charging system is undersized. This generator substitution could result in a lower battery state of charge during periods of continuous high electrical load. Dealers are to inspect and replace the generator if necessary.
