I would like to start a dedicated discussion thread specifically focused on the broader API access restrictions introduced by Volkswagen Group around May 2026.
There is already an issue discussing login failures and technical breakage, but I believe this topic deserves a separate thread with a clear title so users can:
- discuss the policy and access changes themselves
- collect official statements and findings
- cross-link related discussions, articles, petitions, and legal information
- coordinate communication with Volkswagen and regulators
- document the impact on existing smart home and solar charging setups
As many users noticed, third-party integrations such as this Home Assistant integration and evcc suddenly lost access to vehicle data including:
- battery state of charge
- charging status
- mileage
- vehicle telemetry
- charging and climate controls
- ...
From the available information, it currently appears that Volkswagen has restricted API access to approved commercial partners only. For many users, including myself, this functionality was a major reason for choosing VW Group EVs. Integration with Home Assistant and solar charging automation has worked reliably for years and was an important part of our setups. This issue could also affect other VW Group brands such as Skoda, SEAT, and Cupra.
There are also growing discussions around possible conflicts with the EU Data Act and user rights regarding access to vehicle-generated data.
The goal of this thread is not technical troubleshooting. The goal is to ensure that vehicle owners regain access to their own vehicle data through the tools and platforms of their choice
If you believe your rights are being affected, consider submitting a complaint to the relevant authority in your country.
EU petition regarding vehicle data access:
https://www.change.org/p/eu-data-act-durchsetzen-autohersteller-m%C3%BCssen-uns-zugang-zu-unseren-fahrzeugdaten-geben
Complaint submission for German residents and citizens
https://www.bundesnetzagentur.de/_tools/05_Digitalisierung/DataAct/Form01_Beschwerde_II_III/node.html
Complaint submission for residents and citizens of Finland
https://www.traficom.fi/fi/yhteystiedot/asiakaspalvelu/data-tekoaly-ja-datanhallinta-asetuksien-asiakaspalvelu
I would like to start a dedicated discussion thread specifically focused on the broader API access restrictions introduced by Volkswagen Group around May 2026.
There is already an issue discussing login failures and technical breakage, but I believe this topic deserves a separate thread with a clear title so users can:
As many users noticed, third-party integrations such as this Home Assistant integration and evcc suddenly lost access to vehicle data including:
From the available information, it currently appears that Volkswagen has restricted API access to approved commercial partners only. For many users, including myself, this functionality was a major reason for choosing VW Group EVs. Integration with Home Assistant and solar charging automation has worked reliably for years and was an important part of our setups. This issue could also affect other VW Group brands such as Skoda, SEAT, and Cupra.
There are also growing discussions around possible conflicts with the EU Data Act and user rights regarding access to vehicle-generated data.
The goal of this thread is not technical troubleshooting. The goal is to ensure that vehicle owners regain access to their own vehicle data through the tools and platforms of their choice
If you believe your rights are being affected, consider submitting a complaint to the relevant authority in your country.
EU petition regarding vehicle data access:
https://www.change.org/p/eu-data-act-durchsetzen-autohersteller-m%C3%BCssen-uns-zugang-zu-unseren-fahrzeugdaten-geben
Complaint submission for German residents and citizens
https://www.bundesnetzagentur.de/_tools/05_Digitalisierung/DataAct/Form01_Beschwerde_II_III/node.html
Complaint submission for residents and citizens of Finland
https://www.traficom.fi/fi/yhteystiedot/asiakaspalvelu/data-tekoaly-ja-datanhallinta-asetuksien-asiakaspalvelu