Vehicle Offline / Missing Data
Tessie works by getting data from Tesla. If data is missing or the vehicle is offline, it means Tesla isn't able to contact the vehicle.
Why does this happen and how can I fix it?
After analyzing years of data across the Tesla fleet and comparing diagnosis notes with Tesla Service Centers and engineers, we've found that this is caused by the reasons below.
To help you troubleshoot, we've ordered the causes and solutions by most common to most rare:
- Weak cellular or WiFi signal (change to cellular or WiFi)
- Firmware bugs originating in late 2021 firmware (restart the vehicle)
- Low or defective 12V battery (replace it)
- Defective connectivity board (replace it)
- MCU upgrades, modem changes and SIM card changes may cause the vehicle to report being offline when it's asleep (you can safely ignore this behavior)
When in doubt, try an easy fix by restarting the vehicle.
Looking for old data?
Tesla vehicles do not store historical data, so it's not possible to retrieve drives or charges from before activating Tessie.
If you're needing to restart frequently
If the start of a drive or charge is missing
When the vehicle goes idle, Tessie stops data retrieval for up to 20 minutes to allow it to sleep. During this time, Tessie relies on the vehicle's streaming API to communicate to us if driving or charging begins.
If the start of a drive or charge is missing, it means that the vehicle's streaming API didn't report that driving or charging began.
This can happen for two reasons:
- The API is already in use by another tracking service. You can fix this by using one tracking service.
- The vehicle has a bug. You can fix it by restarting.