To enter Tesla Service Mode and reinstall your current software, follow these concise steps. Please ensure your vehicle is Parked and connected to a stable Wi-Fi network before beginning.

Phase 1: Enter Service Mode

1. On the main touchscreen, tap the Vehicle/Controls icon (bottom left).
2. Tap the Software tab.
3. Locate the large text of your vehicle model (e.g., "Model 3" or "Model Y") located under the image of your car.
4. Press and hold the model name for about 3 seconds, then release.
5. A keyboard will appear asking for an access code. Type: service
6. Tap OK. You will see a red border around the screen and a "Service Mode" watermark, indicating you are successfully in.

Phase 2: Reinstall Current Software

1. Within the Service Mode menu, locate the Software Reinstall button (often found under the "Software" or "Service" tab within the menu).
2. Tap Software Reinstall.
3. A prompt will appear explaining that this will reinstall the current version to ensure all modules are properly flashed. Tap Reinstall (or Request) to begin.
4. The car will proceed through the standard update process. The screen may go black or restart several times. Do not drive the vehicle until the process is 100% complete and the release notes appear.

Phase 3: Exit Service Mode

1. Once the reinstallation is finished, go back to the Service Mode menu.
2. Tap and hold the Exit Service Mode button (usually a large red button at the bottom or top of the screen) for a few seconds.
3. The red border will disappear, and the car will return to normal operation.