Sony Support

nav-u™ Tool Software

Applicable Models

IMPORTANT: This file is only for use with the models identified. Not all models are sold in all countries.

This information is for the following models:

  • NV-U44
  • NV-U73T
  • NV-U74
  • NV-U74T
  • NV-U83T
  • NV-U84
  • NV-U94T

About this download

Benefits and improvements

This utility installs version 2.2.1.02160 of the nav-u Tool software.

The nav-u Tool software is required to install system software updates and map data files to the nav-u navigation system.

This is an updated version of the nav-u Tool that was originally available on the nav-u Application Software disc included with the NV-U73T and NV-U83T, and that was previously available for download for those and other models.

System Requirements

Operating Systems

  • Windows Vista®
  • Windows® 2000
  • Windows® XP
  • Windows® XP MCE

File Info

File Name

  • nav-u_tool2211Setup.exe

File Version

  • 2.2.1.02160

File Size

  • 4.49 MB

Release Date

  • 04-15-2009

Before You Start


Important Notes

  • During the installation of this file, be sure that you are logged in as the Administrator or as a user with Administrative rights.
  • To ensure that no other program interferes with the installation, save all work and close all other programs. The Taskbar should be clear of applications before proceeding.
  • It is highly recommended that you print out these instructions for use as a reference during the installation process.

Download & Install


Download and Installation Instructions

  1. To ensure that no other program interferes with the installation, save all work and close all other programs. The Taskbar should be clear of applications before proceeding.
  2. Download the nav-u_tool2211Setup.exe file to a temporary or download directory (please note this directory for reference).
  3. Go to the directory where the file was downloaded and double-click the nav-u_tool2211Setup.exe file to begin the installation.
  4. At the "Welcome to the InstallShield Wizard for nav-u tool" window, click "Next".
  5. Please follow the on-screen prompts carefully to complete the installation.
  6. At the "Update Complete" window, click "Finish".