Autopilot Critics argue that Tesla has published misleading safety claims about its
Autopilot driver-assistance system, and that Tesla cars are actually less safe with Autopilot activated. Tesla's "public beta" release of Autopilot has been called unsafe and irresponsible, as critical safety features are not thoroughly tested before being released to consumers. The
National Transportation Safety Board has criticized Tesla for neglecting driver safety, calling certain Autopilot features "completely inadequate", and cited Autopilot as the probable cause of multiple deadly crashes involving Tesla vehicles. A 2019 study found that Autosteer increased the odds of airbag deployment by a factor of 2.4. A 2020 study found that drivers were more distracted when they used Autopilot, and the researchers called on Tesla to take more steps to ensure drivers stay attentive. Another 2020 study identified significant inconsistencies, abnormalities, and unsafe behavior with Autopilot on three Tesla Model 3 cars. Numerous videos have shown misuse and apparent malfunctions of Autopilot leading to collisions, and between 2016 and 2022 at least fifteen fatalities have involved the use of Autopilot, nine of which occurred in the United States. The
Center for Auto Safety and
Consumer Watchdog have criticized Tesla for what they believe are deceptive marketing practices related to Autopilot. Studies by
AAA and the
Insurance Institute for Highway Safety have shown the name "Autopilot" to be misleading, causing drivers to think the system is safer than it actually is. A German court ruled in 2020 that Tesla had misled consumers by using the terms "Autopilot" and "Full Self Driving". Tesla's Autopilot technology has struggled to detect crossing traffic and stopped vehicles, including stationary emergency vehicles, which has led to multiple fatal crashes. (Tesla released an "Emergency Light Detection" over-the-air update to Autopilot in September 2021, and the NHTSA questioned why it did not issue a recall.) Additionally, an
MIT study published in September 2021 found that Tesla Autopilot is not as safe as it claims and leads to drivers becoming inattentive from regular use of the system. In February 2022, NHTSA began an investigation of phantom braking at highway speeds after 354 complaints from customers concerning a group of about 416,000 Tesla vehicles. The complaints describe rapid deceleration that can occur repeatedly without warning and apparently at random. One owner of a 2021
Tesla Model Y reported a violent deceleration to the NHTSA from 80 mph to 69 mph in less than a second. In May 2022, the NHTSA said in a letter that they had received over 750 complaints about this issue. In June 2022, NHTSA announced it was investigating 16 instances in which Autopilot shut off less than a second before a collision.
Fortune suggested this "might indicate the system was designed to shut off when it sensed an imminent accident".
Fortune also pointed out that Musk has frequently claimed that "accidents cannot be the fault of the company, as data it extracted invariably showed Autopilot was not active in the moment of the collision". Senator
Ed Markey praised the NHTSA investigation, criticizing Tesla for disregarding safety rules and misleading the public about its "Autopilot" system. In April 2024, the NHTSA released the findings of its 3-year investigation of 956 vehicle collisions in which Tesla Autopilot was thought to have been in use that found that the system had contributed to at least 467 collisions including 13 that resulted in fatalities.
Full Self-Driving Tesla has also been criticized by industry observers and safety advocates for its "fast-and-loose approach" to developing its automated-driving technology. Critics argue that pedestrians, cyclists, and other drivers did not sign up to take part in Tesla's "lab experiment" of testing Full Self Driving with amateur drivers on public roads. In response, the NHTSA sent a formal letter to Tesla asking about the terms of the NDA. Since then, videos of incidents from many beta testers have been posted online. Billionaire software safety advocate Dan O'Dowd aired a commercial claiming to show a Tesla running over child-sized mannequins several times; this generated a
cease-and-desist letter from Tesla, which O'Dowd dismissed.
Vice and
Consumer Reports also noted the poor implementation of Tesla's "Safety Score" measurement, which has led to drivers taking unsafe actions such as not braking for cyclists in the hopes of increasing their safety scores. In February 2022, Tesla agreed to remove the "
rolling stop" option from the add-on after the
National Highway Traffic Safety Administration complained the practice is unsafe, and illegal everywhere in the United States. In July 2024,
The Washington Post reported on Musk's potentially fraudulent promises to customers regarding Full Self-Driving.
Fire risk Leaked emails revealed that starting in 2012 Tesla knowingly sold Model S cars with a design flaw in its battery that could cause fires.
Toyota ended their partnership with Tesla in 2014 in part because of disagreements about structural designs that could help prevent battery damage from
road debris which could cause fires. Following a
National Highway Traffic Safety Administration (NHTSA) investigation into two high-profile Tesla vehicle fires in 2014, Tesla added a titanium underbody shield to better protect the battery from road debris. The NHTSA investigated Tesla in 2019 for allegedly issuing
over-the-air updates to cover-up a non-crash fire risk in their batteries. In early 2021, Chinese regulators reprimanded Tesla after an increase in customer complaints about battery fires.
Sudden unintended acceleration Over 200 incidents of sudden unintended acceleration in Tesla vehicles were reviewed by the NHTSA following a defect petition filed in December 2019. The investor who filed the defect petition said that the number of sudden unintended acceleration incidents involving Tesla vehicles was "astonishingly high" compared to other vehicles. In June 2021, Chinese regulators announced that Tesla would recall nearly 300,000 China-made and imported Model 3 and Model Y cars due to an assisted driving function that could be activated accidentally, causing sudden unintended acceleration. On April 17, 2024, the
National Highway Traffic Safety Administration announced that Tesla had issued a recall on all 3,878 Cybertrucks due to an issue where the accelerator pedal pad would dislodge and cause the pedal to become stuck in the interior trim.
Brake failures In March 2021, the owner of a new Model 3 in China reported an accident that she believed was caused by a brake failure; a Tesla China technician reproduced the accident at the same location. Tesla China later issued a statement saying that both the customer's and the technician's cars showed no signs of any malfunction. The woman says that the brakes on her Tesla Model 3 failed, nearly killing four of her family members in an accident. Tesla China disputed the claim, saying the car's brakes and emergency-warning system functioned properly. Journalist and
author Ed Niedermeyer called this type of agreement "unheard of in the auto industry", and noted that a policy of demanding non-disclosure agreements for "goodwill" repairs would limit the number of defects Tesla owners reported to the NHTSA. The NHTSA stated they were aware that Tesla had entered into a "troublesome" non-disclosure agreement with one Model S owner regarding a failed
suspension. In 2017, the
Insurance Institute for Highway Safety (IIHS) awarded the Model S their second-highest rating of "acceptable," denying the Model S a "Top Safety Pick" rating due to less than satisfactory results in a frontal overlap crash test of the vehicle and its "poor" headlights. Tesla responded by accusing groups like the IIHS of using methods "that suit their own subjective purposes", and dismissed the results by claiming that the Model S and Model X were "the safest cars in history" based on the NHTSA's older and less comprehensive tests. Reporters noted Tesla's dismissiveness of potential safety concerns, calling it "irresponsible" and "ridiculous." The NHTSA then referred the matter to the U.S.
Federal Trade Commission's Bureau of Consumer Protection for further investigation.
"Whompy wheels" Starting in 2015, many Tesla drivers have complained about "whompy wheels"—an issue where the car's suspension system breaks, sometimes causing a wheel to collapse or fall off the car. NHTSA announced it was investigating Model S suspension issues in 2016, seeking input from the company and Tesla owners after receiving multiple reports of possible suspension failures. In addition, NHTSA stated it was concerned that Tesla asked owners to sign
nondisclosure agreements covering repairs for safety issues; a spokesperson for NHTSA stated "The agency immediately informed Tesla that any language implying that consumers should not contact the agency regarding safety concerns is unacceptable, and N.H.T.S.A. expects Tesla to eliminate any such language." Tesla disputed the characterization of NHTSA's actions as an investigation, calling it a "routine screening" instead and questioning whether the reporter,
Edward Niedermeyer, had financial motivations. The 2016 probe was closed without further action. Rather than issue a recall on potentially defective suspensions, Tesla has released multiple technical service bulletins warning mechanics about suspension issues and in some cases, advising replacement. Some of the additional bulletins advising inspection and replacement include SB-17-31-002 (front stabilizer bar links, 2017 Models S and X), SB-17-31-006 (front suspension lower fore links, 2016 Models S and X in China), SB-18-31-002 (front upper control arms, 2017 Model 3), SB-18-31-005 (front stabilizer bar links, 2017–18 Model 3), and SB-19-31-001 (lower rear control arm assemblies, 2013–14 Model S). During a twelve-month period ending in April 2019, Tesla spent $4 million globally on warranty repairs to Model S and X suspensions, of which the plurality ($1.3 M) was attributed to front suspension aft links. Based on data reported internally by a Tesla engineer in September 2020,
Reuters calculated that approximately 5% of all Tesla Model S and X vehicles in southern Europe and the Middle East had required aft link repairs. However, internal records show the front suspension aft link was redesigned four times between 2016 and 2020 while Tesla was resolving 400 complaints about aft link failures in China. A lawsuit was filed against Tesla in 2022, alleging that after the suspension failed on a 2021 Model 3, the vehicle's undercarriage impacted the roadway, igniting the batteries; after colliding with trees, the driver and passenger died. In December 2023,
Reuters published an investigative article showing that Tesla had dismissed prior customer claims for suspension and steering failures as resulting from prior damage or driver abuse, while internally documenting the same parts with chronic failures as flawed. == Quality issues ==