Tesla has issued a recall for 817,000 vehicles because seat belt reminder chimes might not sounder under certain circumstances.

The recall is notable mostly for its size. It applies to all Model 3 sedans and Model Y SUVs, along with certain model year 2021-2022 Model S sedans and Model X SUVs.

Tesla has already updated software to fix the problem on cars leaving the factory this month and will soon push out a software update to fix it on cars already sold.