Articles on: Vehicles

Streaming and Telemetry Configuration

This article covers common questions about configuring and using Tesla Fleet Telemetry streaming with Teslemetry, including field update frequencies, configuration options, and troubleshooting.



Frequently Asked Questions


Why is my speed sensor not updating frequently?


The update frequency for speed (and other telemetry fields) depends on your configuration settings. By default, the VehicleSpeed field may not be set to its minimum interval.


To get more frequent speed updates:


  1. Go to the Teslemetry Console
  2. Click the Telemetry button on your vehicle
  3. Find the VehicleSpeed field in the configuration
  4. Set the interval to a value as small as 1 second (the minimum allowed)
  5. Click Start / Update Streaming to apply the changes


How do I configure telemetry field update frequency?


Step-by-step configuration:


  1. Login to the Teslemetry Console
  2. Install the virtual key if not already installed (required for most vehicles)
  3. Click the Telemetry button on the vehicle you want to configure
  4. Select the fields you want to stream
  5. Set the interval for each field (in seconds)
  6. Click Start / Update Streaming to send the configuration to your vehicle


Important: Every time you make changes, you must click Start / Update Streaming to apply the new configuration.


What does "Active" mean for my vehicle?


When a vehicle shows as Active in the Teslemetry Console, it means:


  1. Telemetry is configured - You have selected fields and started streaming
  2. The vehicle is set up to send data - Your vehicle has been configured to transmit telemetry data
  3. The virtual key is installed (for modern vehicles)


How does the SSE (Server-Sent Events) connection work?


Endpoint: https://api.teslemetry.com/sse/{vin} (or leave out VIN for all vehicles)


Connection behavior:

  • The SSE connection sends a newline character every 10 seconds as a keep-alive signal
  • Data events are pushed immediately when values change (based on configured intervals)


Does streaming affect my vehicle's sleep?


No, Fleet Telemetry does not impact your vehicle's sleep at all. When your vehicle goes to sleep, telemetry streaming naturally stops.



Requirements for Fleet Telemetry


Vehicle requirements:

  • Modern vehicles must be running firmware 2023.20 or newer
  • Legacy vehicles (pre-2021 Model S/X with MCU 2) must be running firmware 2025.20 or newer
  • Pre-2018 Model S/X vehicles with MCU 1 are not supported


Setup requirements:

  • The Teslemetry virtual key must be installed (except for legacy vehicles)
  • You must have an active Teslemetry subscription
  • At least one telemetry field must be selected




Updated on: 01/02/2026

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