Tesla’s third recall in a month affects another 320,000 vehicles.

In short: A software glitch prompted yet another Tesla recall in November, this time for the Model 3 and Model Y vehicle lines. According to the recall, vehicles may have rear lights intermittently illuminated due to a firmware anomaly. The announcement follows two previous recalls in the same month affecting the electric car maker’s Model S and Model X lines.

recall report was issued by the National Highway Traffic Safety Administration (NHTSA) for specific 2023 Model 3 and 2020-2023 Model Y electric vehicles. The report states that affected vehicles may have randomly lit taillights on one or both sides of the vehicle, potentially increasing the risk of a collision.

The random glow is the result of a firmware anomaly causing a false fault detection during the vehicle startup sequence. Based on the description of the defect in the report, these false positives appear to be related to the vehicle’s rear lights and do not affect brake lights, reversing lights, or turn signals.

The recall affects 321,628 devices, each of which was identified using specific manufacturing, configuration, and firmware records. Tesla firmware versions from 2022.28 to 2022.40.4 have been identified as the cause of the anomaly. The latest version 2022.40.4.1apparently unaffected and excluded from the recall.

While recalls are not uncommon, this latest news marks another tinkle in an already busy month of reviews for Tesla. Earlier this month, the NHTSA released a recall of 2017-2021 Tesla Model S and X vehicles to address power steering malfunction that occurred after driving on rough roads or hitting potholes.

second review month, which was announced shortly before the firmware issue described above, problems were identified with the calibration and deployment of the front passenger airbag, affecting nearly 30,000 units. As described in the report, calibration of the safety control module on some Model X vehicles from 2021 to 2023 may cause the airbag to deploy in an unintended and inappropriate configuration during a low speed collision.

The recall of airbag-related safety products coincided with a 3% drop in Tesla’s share price, sending the electric car maker’s share price to its lowest level in two years.

Tesla is addressing the issues associated with all three recalls using wireless communication. software updates. The automated approach allows recall issues to be resolved much faster than a typical physical vehicle recall, which requires appointment scheduling and troubleshooting.

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