SYNC 3 should automatically initiate the software update installation process. Once it starts, wait for the update files to completely install.
Installing the update files to SYNC 3 should take about 30 minutes.
Do not remove your USB drive or turn off your vehicle while this update is in progress. Shortly after installation has begun, SYNC may quickly display “Installation Complete.” Ignore this message. It refers to a specific phase of the installation, not the overall update process. The system will reboot, which takes several minutes. Do not attempt to use SYNC during this time. After the system reboots, SYNC will display a pop-up requesting the owner set up Automatic System Updates, please press “Ask Me Later”.
Approximately 10 minutes later (timing may vary per update), SYNC will display “Installation Complete” and request the owner to remove the USB drive from the USB port and perform a complete ignition cycle.
It is now safe to remove your USB drive and turn off your vehicle. The vehicle is required to be completely off for at least 5 minutes.
NOTE: Once you have successfully installed the software update in your vehicle, you will need to
re-pair your phone with SYNC.