Greater than 750 Tesla homeowners have complained to US security regulators that automobiles working on the automaker’s partially automated driving techniques have all of the sudden stopped on roadways for no obvious cause.
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 Could 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 computerized emergency braking techniques have 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 mentioned it had no experiences of crashes or accidents.
The letter provides Tesla a deadline of 20 June to answer the knowledge request however says the corporate can ask for an extension.
A message was left early on Friday in search of remark from Tesla.
In opening the investigation, the company mentioned it was wanting into automobiles outfitted with automated driver-assist options comparable to adaptive cruise management and “autopilot”, which permits them to mechanically 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 mentioned.
Many house owners wrote of their complaints that they feared a rear-end crash on a freeway.
Within the letter, NHTSA asks for the preliminary pace when the automobiles started to brake, the ultimate pace and the typical deceleration. It additionally asks if the automated techniques detected a goal impediment, and whether or not Tesla has video of the braking incidents.
The company is now in search of data on guarantee claims for phantom braking together with the homeowners’ names and what repairs have been made. It is usually in search of data on Tesla’s sensors, any testing or investigations into the braking issues, or if any modifications have been made.
The letter focuses on Tesla’s testing of the automated techniques in the case of detecting steel bridges, S-shaped curves, oncoming and cross site visitors and completely different sizes of automobiles together with giant vehicles. The company additionally desires data on how cameras cope with reflections, shadows, glare and blockage because of snow or heavy rain.