Users of Android Auto have been experiencing an issue where the cellular signal icon disappears from their displays. Google has acknowledged the problem and is rolling out a fix. The stable version of Android Auto 17.8 has been released, which resolves the bug for many users. To fix the issue, users should ensure they have the latest version of Android Auto by checking the Google Play Store. If no update is available, they can verify their current version in the app settings. If running version 17.8 and the issue persists, users can clear the app's cache. If the update is not yet available, users may wait for the rollout or consider sideloading the update from a reputable source.