Tesla said that during product testing in August employees identified window automatic reversal system performance that had “greater than expected variations in response to pinch detection”.
After extensive additional testing, Tesla determined that the vehicles’ pinch detection and retraction performance in the test results did not meet automatic reversal systems requirements.
Tesla said that starting September 13, vehicles in production and in pre-delivery received a software update that sets power-operated window operation to the requirements.
The software update “enhances the calibration of the vehicle’s automatic window reversal system behaviour”, Tesla said.
Tesla shares were down 3.5 per cent in Thursday afternoon trading.
Tesla chief executive Elon Musk on Twitter Thursday criticised the description of the callback as a recall.
“The terminology is outdated & inaccurate. This is a tiny over-the-air software update. To the best of our knowledge, there have been no injuries,” he said.
Both NHTSA and Tesla in documents made public on Thursday referred to the campaign as a recall.
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