West Herr New York had noted a quirk that may affect Bluetooth connections in some Toyota models.
West Herr's technology specialist learned of the issue when a customer's Android phone no longer connected to her Toyota Prius via Bluetooth once the phone's operating system updated, according to an announcement. It would connect for 30 seconds, then shut off the vehicle's Bluetooth connection. Meanwhile, an iPhone could connect via Bluetooth. The issue happened on a Toyota using a previous infotainment system that was on car models built in 2012-2015.
Technology specialist Andy Parks discovered that many others experienced the same issue with their phones. The phones essentially were sending too much data to the vehicle, causing Bluetooth to shut down.
To repair the problem, delete the Bluetooth phone connection in the car. Shut down and restart the phone, then the vehicle. Set up another Bluetooth pairing between the phone and the car. When prompted, choose not to connect text messages with the vehicle. This allows most other Bluetooth pairing functionality to work well between an Android device and older Toyota infotainment systems.