Greater than 750homeowners have complained to US security regulators that vehicles working on the automaker’s partially automated driving methods have immediately stopped on roadways for no obvious motive.
The Nationwide Freeway Site visitors Security Administration revealed the quantity in an in depth data request letter to Tesla that was posted on Friday on the company’s web site.
The 14-page letter dated 4 Might asks the automaker for all shopper and subject experiences it has acquired about false braking, in addition to experiences of crashes, accidents, deaths and property harm claims. It additionally asks whether or not the corporate’s “full self driving” and automated emergency braking methods had been energetic on the time of any incident.
The company started investigating phantom braking in Tesla’s Fashions 3 and Y final February after getting 354 complaints. The inquiry covers an estimated 416,000 automobiles from the 2021 and 2022 mannequin years. In February, the company stated it had no experiences of crashes or accidents.
The letter provides Tesla a deadline of 20 June to answer the data request however says the corporate can ask for an extension.
A message was left early on Friday looking for remark from Tesla.
In opening the investigation, the company stated it was trying into automobiles outfitted with automated driver-assist options comparable to adaptive cruise management and “autopilot”, which permits them to routinely brake and steer inside their lanes.
“Complainants report that the fast deceleration can happen with out warning, and infrequently repeatedly throughout a single drive cycle,” the company stated.
Many homeowners wrote of their complaints that they feared a rear-end crash on a freeway.
Within the letter, NHTSA asks for the preliminary velocity when the vehicles started to brake, the ultimate velocity and the typical deceleration. It additionally asks if the automated methods detected a goal impediment, and whether or not Tesla has video of the braking incidents.
The company is now looking for data on guarantee claims for phantom braking together with the homeowners’ names and what repairs had been made. Additionally it is looking for data on Tesla’s sensors, any testing or investigations into the braking issues, or if any modifications had been made.
The letter focuses on Tesla’s testing of the automated methods with regards to detecting steel bridges, S-shaped curves, oncoming and cross visitors and totally different sizes of automobiles together with giant vans. The company additionally needs data on how cameras cope with reflections, shadows, glare and blockage because of snow or heavy rain.