Feds asks Tesla to recall 158,000 automobiles over failing touchscreen shows

U.S. security regulators have requested Tesla to recall 158,000 automobiles over media management unit failures that trigger the touchscreen shows to cease working, following a months-long investigation by the Nationwide Freeway Site visitors Security Administration.

The Workplace of Defects Investigation unit of the company decided that the failure of the media management unit is a security situation since capabilities just like the backup digicam and defogging and defrosting setting controls cease working in addition to audible chimes, that are used when the flip sign indicator is activated and to alert drivers whereas the automobile’s Autopilot superior driver help system is engaged. Stories of the MCUs immediately failing have been a subject for years in Tesla boards.

The failure is precipitated when the reminiscence storage in a flash drive used within the utilized in these automobiles reaches capability, investigators concluded. The one resolution is to interchange the bodily piece of {hardware}. Autos affected embody Mannequin S sedans constructed between 2012 and 2018 in addition to Mannequin X SUVs in 2016 by 2018.

Tesla didn’t reply to a request for remark. Nonetheless, the corporate did present info to NHTSA, which is contained within the report. Tesla confirmed to NHTSA that every one items will inevitably fail given the reminiscence machine’s finite storage capability. Tesla supplied its personal statistical mannequin displaying the variety of projected weekly MCU repairs from 2020 to 2028. The automaker estimated that alternative charges for MCU failures will peak in early 2022 and steadily decline till (close to) full half turnover has been achieved in 2028, in line with the report.

These automobiles are geared up with an NVIDIA Tegra Three processor with an built-in 8GB eMMC NAND flash reminiscence machine. A part of this 8GB storage capability is used every time the automobile is began. The eMMC NAND cell {hardware} fails when the storage capability is reached, leading to failure of the MCU, the company mentioned.

The eMMC NAND flash machine’s lifespan based mostly upon the variety of program/erase cycles, after which the MCU fails resulting from reminiscence wear-out. Investigators decided that the anticipated utilization life score for the 8GB eMMC NAND flash reminiscence machine is about 3,000 Program-Erase cycles, after which the eMMC NAND flash reminiscence machine would grow to be absolutely consumed and not be operational. At a day by day cycle utilization charge of 1.four per block, accumulation of three,000 P/E cycles would take solely 5 to six years, the company mentioned.

The company has formally requested that Tesla provoke a recall to inform all house owners, purchasers, and sellers of the topic automobiles of this security defect and supply a treatment.

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