: For newer models with a Data Communications Module (DCM), the system may automatically check for updates weekly. You can also manual trigger this by going to Settings > Software Update > Update Software while connected to a stable Wi-Fi network.
Before starting, verify if your system requires this update. Turn on your Toyota's infotainment system. Go to > About > Software Information . 17tdt1eu-da31 Software Update
Improved touch screen responsiveness. How to Check Your Current Version : For newer models with a Data Communications
Operating on outdated factory firmware often causes cumulative software bugs that degrade your driving experience. Updating your DCU to the latest stable version yields immediate improvements. Turn on your Toyota's infotainment system
Improving the load times for the infotainment system. 3. How to Identify Your Current Version
Common issues and troubleshooting
The unit is part of a family of DCUs, which includes earlier models like the and 17TDT1EU-DA30 . Many users have reported that performing an authorized update successfully converted their older DA01 or DA30 unit into a newer DA31 version, enabling new functionalities. If your vehicle's multimedia screen is responsive but occasionally feels sluggish or experiences connection glitches, a software update is often the first recommended solution.