Lexus TSB #L-TT-0121-13
2014 Lexus GS 450h
Affected Component: EQUIPMENT ADAPTIVE/MOBILITY
- MY 2013 Gen 7 navigation systems use a USB SST to update the firmware and map. MY 2014 IS and GX models incorporate a Gen 8 navigation system that uses a USB stick to update the firmware ONLY. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.