February 19, 2022

Tesla recalling 54,000 self-driving cars for rolling stop bug – National | Globalnews.ca

Tesla is recalling nearly 54,000 cars and SUVs because their “Full Self-Driving” software lets them roll through stop signs without coming to a complete halt.

Documents posted Tuesday by U.S. safety regulators say that Tesla will disable the feature with an over-the-internet software update. The “rolling stop” feature allows vehicles to go through intersections with all-way stop signs at up to 5.6 miles per hour.

Tesla agreed to the recall after two meetings with officials from the National Highway Traffic Safety Administration, according to documents. Tesla said that it knows of no crashes or injuries caused by feature.

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The recall covers Model S sedans and X SUVs from 2016 through 2022, as well as 2017 to 2022 Model 3 sedans and 2020 through 2022 Model Y SUVs.

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Selected Tesla drivers are “beta testing” the “Full Self-Driving” software on public roads. The company says the cars cannot drive themselves and drivers must be ready to take action at all times.

A firmware release to disable the rolling stops is expected to be sent out in early February.

A message was left early Tuesday seeking comment from Tesla, which has disbanded its media relations department.


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NHTSA said in documents that failing to stop for a sign can increase the risk of a crash.

Safety advocates complain that Tesla should not be allowed to test the vehicles in traffic with untrained drivers, and that the Tesla software can malfunction, exposing other motorists and pedestrians to danger. Most of the other auto companies with similar software test with trained human safety drivers.

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Tesla introduced the “rolling stop” feature in a software update that was sent out to the testing owners on Oct. 20. NHTSA met with Tesla on Jan. 10 and 19 to discuss how the software operates, the documents said. On Jan. 20, the company agreed to disable the rolling stops with the software update.

Owners will get required notification letters on March 28.

The “rolling stop” feature let the Teslas go through all-way stop signs as long as the owner enabled the function. The vehicles have to be traveling below 5.6 mph while approaching the intersection, and no “relevant” moving cars, pedestrians or bicyclists can be detected nearby. All roads leading to the intersection had to have speed limits of 30 mph or less, the documents said. The Teslas would then be allowed to go through the intersection at 0.1 mph to 5.6 mph without coming to a complete stop.

Alain Kornhauser, faculty chair of autonomous vehicle engineering at Princeton University, said the recall is an example of NHTSA is doing its job as the nation’s road safety watchdog. The recall “shows that they can be effective even if Tesla should have been more responsible in the first place,” he said.

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In November, NHTSA said it was looking into a complaint from a Tesla driver that the “Full Self-Driving” software caused a crash. The driver complained to the agency that the Model Y went into the wrong lane and was hit by another vehicle. The SUV gave the driver an alert halfway through the turn, and the driver tried to turn the wheel to avoid other traffic, according to the complaint. But the car took control and “forced itself into the incorrect lane,” the driver reported. No one was hurt in the Nov. 3 crash in Brea, California, according to the complaint.

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In December, Tesla agreed to update its less sophisticated “Autopilot” driver-assist system after NHTSA opened an investigation. The company agreed to stop allowing video games to be played on centre touch screens while its vehicles are moving.

The agency also is investigating why Teslas on Autopilot have repeatedly crashed into emergency vehicles parked on roadways.


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