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Tesla has been ordered to recall about 159,000 automobiles to repair a challenge in the Media Control Unit. Information broke quite a few months back that about 12,000 Tesla autos experienced experienced a significant NAND flash failure that killed the vehicle’s touch display. Many car controls in a Tesla are accessed by means of touch screen, and the NHTSA (National Freeway Traffic Basic safety Administration) commenced an investigation following in excess of 500 problems were submitted about the problem.

There are several interlocking motives for the difficulty. Tesla’s onboard MCU to begin with contained just 8GB of NAND Flash. Tesla writes thoroughly to the NAND flash for data logging (challenge #1), which winds up depleting the 3,000 software/erase cycles the onboard NAND flash is able of. The moment its onboard NAND fails, the touch screen stops operating, freezing the stop-user out of local weather controls and from applying the rear backup digital camera. It also is reported to effects “audible chimes linked to ADAS, Autopilot, and change alerts.”

Graphic by InsideEVs. The influenced eMMC chip is indicated by the red arrow.

Tesla transported this iteration of its MCU in ~159,000 motor vehicles, like 2012-2018 variations of the Product S and 2016-2018 versions of the Product X. The present failure rate at the time of the initial investigation was as substantial as 30 percent in particular construct months, and failure charges speed up soon after 3-4 decades in service. In the summer months of 2020, Tesla introduced an MCU with a 64GB eMMC chip alternatively of 8GB, which must ease the trouble. The challenge with older vehicles, nevertheless, continues to be unresolved. Generally, the NHTSA doesn’t formally desire a remember, for the reason that a producer voluntarily offers one. Tesla has by now acknowledged that 100 % of vehicles with this problem will sooner or later are unsuccessful and the NHTSA report, discussed by Reuters, suggests that nine other automakers have previously executed voluntary recalls to take care of concerns like this.

The NHTSA report states: “Tesla has executed several above-the-air updates in an attempt to mitigate some of the difficulties … but tentatively believes these updates are procedurally and substantively inadequate.” It mentioned that beneath the regulation, “vehicle brands are essential to carry out recalls to remedy security-connected problems.”

1 of the key grievances about how Tesla is managing this problem is that the enterprise is forcing conclude-buyers to pay for a challenge it ought to have fixed a long time in the past. Tesla fired its complete PR office environment final yr, so there is no one particular we can call to get an opinion on the topic. As of this writing, no comments have been produced by means of Twitter on how the company strategies to respond to the remember “request,” but if Tesla needs to combat it, it’ll have to present its entire reasoning and justification for why the failure does not represent a security hazard to the car or driver.

Tesla seems to be the only company at this time suffering from this actual logging problem, which likely speaks to the knowledge of logging this kind of exhaustive quantities of information and facts to shopper eMMC in the first spot with no extended-time period approach for what to do when the NAND flash failed. There’s no excuse for marketing a auto recognizing its NAND flash will start out to fail in 3-4 yrs with no system for how to deal with that outside of, “Charge the purchaser for a substitute if it occurs out of warranty.”

This concern only affects earlier Tesla models. If you purchased one particular in the very last yr or two, you might not be influenced. Automobiles outfitted with Intel hardware really don’t seem to have the very same problem as previously Tegra 3-primarily based patterns, even though once again — the issue listed here is the smaller amount of NAND, not the simple fact that the enjoyment technique was created by Intel or Nvidia.

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