Google Rolls Out Fix for Android Auto Breaks on Samsung One UI 9

The patch should restore car-connection reliability for affected Galaxy phones as it reaches users' devices.

Overview

Google confirmed on Tuesday that a software fix is being rolled out to resolve Android Auto connectivity failures that followed Samsung’s One UI 9 (Android 17) update.
Owners reported symptoms that included Android Auto refusing to connect, frequent disconnections, and stuttering in-car audio or navigation after updating to One UI 9.
Reports came from multiple Galaxy models, including posts about a Galaxy S26 and lab-style reproductions on a Galaxy S24 Ultra that linked the problems to One UI 9.
Affected users said common troubleshooting—re-pairing phones, clearing app data, and switching between wired and wireless connections—often did not fix the issue.
The rollout is staged so some users may still see problems until their phones receive the patch, and Google has not publicly detailed the technical root cause behind the failures.