MC-10174287-9999 PDF

A service bulletin that addresses the inability to perform software updates on headlamp control units for certain model series. The document outlines the specific models and production periods affected, detailing the cause related to early production vehicles. It provides a remedy, suggesting the replacement and re-commissioning of the headlamp control units. Additionally, control unit fault codes and symptoms associated with lighting and malfunction issues are listed for troubleshooting purposes.