The National Highway Traffic Safety Administration (NHTSA) will follow up on a petition to investigate and recall 500,000 Tesla cars, due to a spike in reports of the vehicles suddenly and unexpectedly accelerating.
Reuters on Friday reported that the petition includes Tesla Model S cars made between 2012 and 2019, Tesla Model X cars made between 2016 and 2019, and Tesla Model 3 vehicles made between 2018 and 2019.
The NHTSA received the petition on December 19, 2019, "requesting a defect investigation of alleged sudden unintended acceleration" (SUA) of the cited Tesla models.
"In support of his request, the petitioner cited 127 consumer complaints to NHTSA involving 123 unique vehicles. The reports include 110 crashes and 52 injuries," the traffic safety regulator stated.
SEE: The new commute: How driverless cars, hyperloop, and drones will change our travel plans (TechRepublic cover story) | download the PDF version
The petitioner, Brian Sparks, said Tesla has been "unresponsive" to complaints from multiple Tesla SUA victims.
"Victims find it difficult to access their own vehicle data, and difficult even to contact the company," wrote Sparks in the petition to NHTSA's Office of Defects Investigation (ODI).
Sparks details several dangerous situations caused by a Tesla suddenly lurching forward from a stationary position or at a low speed, with accidents avoided in some cases by the driver slamming on the brakes.
"On November 29, 2019, we were driving our five-month-old Tesla Model 3. We were coming to a stop at a stoplight in heavy traffic, when suddenly the car accelerated on its own. My husband had to brake suddenly to prevent running into another car," one owner wrote.
Another Tesla owner detailed an SUA event that occurred on December 15, 2019, where he was using the automatic parking system to park the vehicle. He reported his hands were off the steering wheel and foot was off the brakes and gas when the car suddenly "accelerated backward on its own and I had to slam my foot on the brake to stop it but it still hit a pole going in reverse and damaged the body of the car".
In other cases, Tesla owners reported the SUA resulted in injuries.
Sparks pointed to an incident that occurred on December 17, 2019, when a Tesla Model S went through the front wall of a bakery in Ontario, Canada, while the driver was attempting to park. The driver and an employee from the bakery were injured in the crash.
In another scary incident, a Tesla Model 3 driver in Texas reported that after parking and coming to a complete stop, "the car suddenly lurched forward, jumped the curb, crossed the grass median and come to rest on the hood of another car". According to the report, the driver's foot was on the brake at the time.
As per Reuters, the NHTSA is looking at whether Tesla should have recalled 2,000 of its cars in May instead of pushing out a software update to fix a fire-risk issue in its batteries.
SEE: Tesla aims for 'designed in China' vehicles
The National Transportation Safety Board last Thursday announced plans to hold a meeting on February 25 to determine the probable cause of a 2017 Tesla Model X that crashed in Mountain View, California in 2018, killing the driver. The vehicle was in Autopilot mode.
NHTSA is also investigating a fatality that happened on December 29 after a Model 3 smashed into a parked fire truck in Indiana.
UPDATE January 21: Tesla has published a strongly worded rebuttal of the petition, denying that its vehicles unintendedly accelerate, and calling the motives of petitioner Brian Sparks into question.
"We investigate every single incident where the driver alleges to us that their vehicle accelerated contrary to their input, and in every case where we had the vehicle's data, we confirmed that the car operated as designed," Tesla said.
The company argues that accidents caused by a mistaken press of the accelerator pedal have been alleged for nearly every make or model of vehicle on the road.
"[However,] the accelerator pedals in Model S, X, and 3 vehicles have two independent position sensors, and if there is any error, the system defaults to cut off motor torque," Tesla said.
"Likewise, applying the brake pedal simultaneously with the accelerator pedal will override the accelerator pedal input and cut off motor torque, and regardless of the torque, sustained braking will stop the car.
Tesla said its Autopilot sensor suite also helps identify potential pedal misapplications and cuts torque to mitigate or prevent accidents when it decides that the driver's input was unintentional.
"Each system is independent and records data, so we can examine exactly what happened."
The company said it routinely reviews customer complaints of unintended acceleration with the NHTSA. Tesla said it had discussed most of the complaints in the petition with the NHTSA over the past few years.
"In every case we reviewed with them, the data proved the vehicle functioned properly."
More on Tesla, artificial intelligence, and self-driving cars New fatal Tesla crash: US road traffic regulator probes possible Autopilot link
Elon Musk reveals Tesla's electric Cybertruck and smashes its windows
Tesla's new Smart Summon: Here's why it has no place in public parking lots
Elon Musk: Older Tesla cars set for full self-driving chip upgrade in Q4 Elon Musk on Tesla's Autopilot: In a year, 'a human intervening will decrease safety'Fatal Tesla crash: Car was on Autopilot when it hit truck, say investigators
Elon Musk's new Tesla: Self-driving Model Y SUV out in 2020 from $47,000Elon Musk: $35,000 Tesla Model 3 arrives but job cuts coming as sales shift onlineTesla starts to release its cars' open-source Linux software codeTesla fatal crash: Parents of dead teen sue over alleged faulty batteryNew NTSB Tesla fatal crash report: Model S battery reignited twice after Florida crashNTSB's Tesla fatal crash report: Autopilot sped up, no braking in final secondsTesla Model S allegedly in Autopilot hits parked police carElon Musk: Tesla Autopilot gets full self-driving features in August updateTesla's Autopilot: Cheat sheet TechRepublicTesla to close retail stores, only sell cars online CNET