From a new Google Play developer account to an app your listeners can install, with Android Auto switched on. Give yourself a few weeks if you open a personal account: Google asks new personal accounts to test the app with real people first.
Google renames a menu now and then, so if a label below doesn't match your screen exactly, look for the nearest one with the same meaning.
Tip: an app can be moved to another developer account later, but it's far easier to start in the account that will keep it.
If your developer account is a personal account created after 13 November 2023, Google won't let you publish to everyone until you have run a closed test: at least 12 testers who stay opted in for 14 days in a row. Organization accounts skip this step.
Step 6 shows how to start the test once your app is set up.
Open Main store listing (you'll find it under Store presence). This is the page listeners see before they install.
Your Dashboard lists the questions Google needs answered before a release (they live under App content). Work through each one:
Keep your upload key. In your control panel, the Android upload key card has a Download upload key button. Download it once and store the file and its password somewhere safe. We sign your builds with it, and Google checks every update against it.
Your app already has everything Android Auto needs. This step tells Google to offer it in cars.
Google may review the app for cars separately, against its quality rules for apps used while driving.
Later on: to publish an update, build again in your control panel and create a new release with the new App bundle (.aab). New streams, schedule changes and links don't need one: the app picks those up by itself.