Use the message on the car screen to find the cause. Each heading below is what Android Auto shows you.

The list is empty and says "Sign in to Fluss+ on your phone"

The car screen has no devices to show. It reads a list that the Fluss+ app shares with it, so the fix is always on the phone, not in the car:

1. Unlock your phone and open the Fluss+ app.
2. Sign in if you're asked to.
3. Wait for your devices to load on the home screen.
4. Back in the car, tap Refresh on the Gates screen.

If the app is signed in and your devices load on the phone but the car list is still empty, disconnect and reconnect Android Auto to make the app re-share the list.

A device is missing from the list

• It's a Fluss+ Intercom. Intercoms can't be used from the car and never appear in the list.
• Your access to it has ended. A device shared with you is listed only while your access is active. See the various access types.
• The phone hasn't shared it yet. Open the Fluss+ app, let the device appear on the home screen, then tap Refresh in the car.

A device shows "Out of range"

Fluss+ can't reach that device right now by either route: you're not in Bluetooth range, and it isn't available over Wi-Fi. Tapping it won't open anything.

• If you're driving towards it, wait — the label changes to Bluetooth · In range by itself as you get close.
• If you expected Wi-Fi, the device is offline. Check it on the app's home screen and see solutions for Wi-Fi disconnection problems.
• If the device is online, your access may not permit Wi-Fi triggering, which leaves Bluetooth as the only route.

"Turn on Bluetooth to open ..."

Your phone's Bluetooth is switched off, and the device needed it. Turn Bluetooth on in your phone's settings and tap the device again.

"Bluetooth is unavailable"

Your phone's Bluetooth can't be used at all — it may be blocked by a permission or unavailable while another app holds it. Open the Fluss+ app on your phone and confirm it can still find the device there. See how to enable Bluetooth permissions.

"No connection — couldn't reach ..."

The trigger was sent over Wi-Fi but couldn't get through, usually because the phone lost data in a low-signal spot. Try again once you have signal, or get close enough for Bluetooth · In range, which doesn't need the internet.

"Could not open ..."

The device was reached but didn't complete the trigger. Tap it once more. If it keeps failing, open the Fluss+ app on your phone and try triggering it there — if that fails too, the problem is with the device rather than with Android Auto. See solutions for Wi-Fi disconnection problems.

Fluss+ isn't on the car screen at all

The app itself isn't reaching Android Auto:

1. Confirm Android Auto is working for other apps on the car screen.
2. Make sure the Fluss+ app is installed on the connected phone and has been opened at least once since installing.
3. Disconnect and reconnect the phone.