Tesla rolls out software update to fix faulty seatbelt recalls

Tesla is rolling out a firmware update to more than 817,000 vehicles in the United States due to a faulty seat belt reminder chime.

The fault, according to a report(Opens in a new window) by the National Highway Traffic Safety Administration (NHTSA), covers 2021-2022 Model S and Model X, 2017-2022 Model 3, and 2019-2022 Model Y sedan and SUV.

Federal Motor Vehicle Safety Standards, issued by NHTSA, require a seat belt reminder chime to activate when the vehicle is started if the driver has not buckled in. It seems that a software error prevented the chime from activating in certain circumstances where the notification was interrupted. For example, if the driver started the car, triggering a warning, then drove away and returned without buckling up, the software wouldn’t play the chime a second time.

Tesla says it is not aware of any “warranty claims, field reports, accidents, injuries or deaths related to the condition.” The automaker has already released a firmware update (2021.43.101.1) to fix the software error; a separate live rollout (2022.4.5) will ship to vehicles this month. No further action is required from the owners.

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This is Tesla’s second run-in with NHTSA this week, following a recent update to remove the Rolling Stop feature from Tesla Model S, X, 3 and Y vehicles equipped with the optional Full Self-Driving module. Tesla is also processing 107 reports of “phantom braking” in the past three months for Model 3 and Model Y vehicles. There were only 34 reports in the previous 22 months.

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