: OTA updates for this version frequently failed if the vehicle's battery was weak or not sufficiently charged. Manual installation via a package like "23291.rar" is often the recommended workaround when the built-in update system fails.
Based on standard SYNC 4 update structures, a file named "23291.rar" would likely contain: 23291.rar
: A configuration script that tells the SYNC system which files to install and in what order. : OTA updates for this version frequently failed
: Some users were directed to this version to resolve glitches with the backup camera or wireless CarPlay connectivity. 23291.rar
: This build (Revision 1049) included refinements for connectivity and was a prerequisite for features like Apple Maps EV route planning. Common Issues