Tesla CEO Elon Musk said this week that his electric-car company will no longer sell its Full Self-Driving software after February 14. However, Musk said in a post on his social media network X“FSD will only be available as a monthly subscription thereafter.”

A representative for Tesla did not respond to a request for comment.

It is not clear what caused the change. Tesla has been the subject of lawsuits and investigations in this regard FSD technologywhich is targeted in the marketing acquisition of a dispute in California which would stop the sale of Tesla vehicles in the state. In that California case, a judge ruled that the company made misleading statements about the capabilities of its Autopilot and Full Self-Driving features.

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Contrary to its name, the Full-Self Driving mode does not give a Tesla car full autonomy.

The software remains available, although the company recently labeled it as “watched,” suggesting that drivers should not treat FSD as a substitute for pay attention to the road. In October, Tesla introduced a “Sloth” speed option for FSD capable of careful lane changes and relaxed cruising, and makes improvements to self-parking capabilities.