TSB: Lexus models equipped with Hard Disk Drive (HDD) Navigation may have their map data, Compact Disc Database (CDDB), and navigation head unit software updated using the Navigation Update Tool and the HDD Navigation Programs Installer. The Navigation Programs Installer is a PC application available on the Technical Information System (TIS) and must be installed on Techstream or an equivalent PC. The Navigation Update Tool is an essential service tool and the device must be properly configured before initial use. Follow the procedures in this bulletin to locate and install the HDD Navigation Programs Installer and properly configure the Navigation Update Tool. The HDD Navigation Programs Installer is a mandatory application that will be used to update the vehicle's map data, as well as the CDDB data. This bulletin will outline two processes that must be completed to prepare the Navigation Update
Tool for initial use:
? Download and install the Navigation Programs Installer onto a PC.
? Perform initial setup of the Navigation Update Tool.
