The most significant purpose of the 18.45.01 update was to resolve the that occurred in late 2019. Without this update, many systems experienced:
Insert the USB drive into the USB port in your vehicle's center console or media hub. Uconnect Software Version 18.45.01
Park your vehicle outside in a well-ventilated area. The update process can take 30 to 45 minutes, and to prevent the battery from entering sleep mode. The most significant purpose of the 18
Resolves dropped calls and improves automatic device recognition upon vehicle startup. 2. System Performance and Bug Fixes Uconnect Software Version 18.45.01