What exactly does this mean? Essentially, users were able to have granular control over their data and actions, like when and how their cars were charged at home, compared to the basic features in the Volkswagen app. Now, that’s all suddenly shut down.
Subscription Vs. Private Control
The biggest use cases were through the popular open-source home automation software, Home Assistant, and the open-source EV charging and energy management system openWB. But on May 27, 2026, it appears every third-party client using the Volkswagen Group cloud service began failing to connect, while the official Volkswagen brand’s smartphone apps continued to authenticate normally.
Through the Volkswagen Group’s branded apps, including Audi, Škoda, and Cupra, owners can access some useful controls with a paid subscription, but independent developers have created far more useful features in their software.
Through the API Volkswagen has left open for a few years, owners could dig in a little deeper and control things like making sure their electric car would charge only on rooftop solar surplus energy or when electricity prices are at their lowest, get notifications when charging starts, finishes, or fails, and even re-heat or cool the cabin using weather, calendar or location triggers. For fans of full-home automation, they could even use their car’s proximity to home to set off automations and control functions with voice commands. It’s not something everyone used, but those who used it… really used it.
Home Assistant: Why People Love It
All of this has come to light primarily because of Home Assistant, which is a smart home automation hub that goes way beyond what something like Amazon Alexa, Google Home, or Apple Home. Because it is open source and not a closed system, Home Assistant is interoperable and highly customizable. Using Home Assistant, you can do fancy and useful things with just about anything that can be connected to a home network – including a car.
When Home Assistant has access to the power system for the house, like the service providers data, the solar system, or even a home battery system, and an electric vehicle, it can automate the charging to be at its most cost-effective. For a non-electric car on the home network, it can still pull in data to use and use functions like remote start and setting the climate controls suitable for the weather. Assuming, of course, the car and its data aren’t locked up by the automaker.
The Reply From Skoda
CarBuzz reached out to Volkswagen for a comment on the situation, but thus far the automaker has declined to comment. The only official reply so far came through the Volkswagen brand Skoda in Europe, shared on a Skoda owner Facebook page, which essentially says it now has “a formal framework for third-party access to vehicle data.” Essentially, a third-party app can license data from all included brands under a unified legal framework – which sounds like a paid B2B (Business To Business) solution, freezing out consumers.
After realizing car owners were not pleased, Skoda went on to say: “We understand how important smart-home integrations, such as Home Assistant, are for many of you. We are currently working on how to introduce the upcoming changes in a way that better reflects these needs. As part of this, we are exploring a solution that would allow selected basic smart-home functionalities to remain available in a secure way, while ensuring data protection, security and system stability.”
What’s notable there is the phrase “selected basic smart-home functionalities” and the use of “data protection, security and system stability.” Such phrases can often be highbrow ways of tech companies wanting to limit consumers’ abilities with their software. Could VW be moving in this direction?
Sources: Louis Rossman (YouTube) / ConsumerRights / VWIDtalk / GitHub / Volkswagen / BornCity
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This article originally appeared on CarBuzz and is republished here with permission.
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