Tesla has started giving rides in driverless Model Y SUVs in Austin. Details are still sparse, but limited service is open to vetted and invited riders.

The vehicles will have safety monitors and may not operate in bad weather, making them more restricted than the fully autonomous vehicles promised by Elon Musk.

The test, limited in scope and shrouded in secrecy, is a crucial step for a company still struggling with the fallout from its founder’s foray into politics.