Log into your Sync account to download.
This fixed my issue with radio changing audio sources from USB when I turned the radio on manually (no key in the ignition, but turn on with the radio power button), then start the engine. I noticed it displayed "HD" on one FM radio station in the two minutes I used it after the update.
They still haven't fixed the wi-fi passwords yet. Last update only allowed numeric entry. This update added alpha, but it still greys out the characters.
Not sure if this refines the large USB drive indexing. I went to a smaller 16GB drive from the 32 GB due to constant re-indexing. The current drive doesn't seem to re-index even before the update.
The latest SYNCŪ update includes all of the improvements from previous updates, plus additional benefits, such as:
Information display on the homescreen for HD, Sirius (if equipped), and FM radio sources
Simplified graphics and improved usability
Enhanced voice destination entry for SD Card Navigation (if equipped)
Improved Navigation vehicle positioning (if equipped)
Rear view camera guidelines set to ON by default (if equipped)
Updated SYNC/device compatibility information
The installation of this update will take up to 30 minutes to complete. Be sure to keep your engine running, not in accessory mode, throughout the entire installation process. Turning off your vehicle during the update installation will disrupt the process. Although your vehicle must be in park when you begin the installation process, you may drive your vehicle while the update is downloading to your SYNC system. If your vehicle is equipped with the Intelligent Access with Push Button Start feature, you will need to temporarily disable the Automatic Engine Idle Shutdown (AEIS) component before beginning the installation in order to prevent your vehicle from timing out and shutting off the engine before the software update is complete. To disable this feature, use your steering wheel controls to navigate to the Settings menu on your left-hand Instrument Cluster LCD display. From there, select Vehicle >Auto Engine Off >Off. (If you do not see this setting, there is no need to make any changes before starting the update.) Alternatively, after initiating the installation, you may drive the vehicle during the update process to avoid the engine shutting off. The AEIS will automatically reset to "On" the next time you start your vehicle.
Please note: During the update installation, SYNC will temporarily appear to not recognize your mobile phone or media device. This is normal.
When your system has been successfully updated, SYNC will display a notification saying, "Installation complete."