A defective third-party supplied part could have been "manufactured improperly" and, if the part were to break, the brake would still work but would be stuck in place.
U.S. luxury electric vehicle maker Tesla plans to install 14 high-speed supercharger stations across the country by the end of this year, according to its global sales head.
Customers who bought the said models manufactured from February to October past year will be sent an official recall notice by mail.
Tesla will file the recall with the NHTSA, and the Silicon Valley carmaker says it expect to have received all necessary fix parts by October. Out of those vehicles, the company estimated only less than 5 percent of the Model S and Model X cars being recalled are affected by the issue. These brakes ensure the auto does not move once placed in Park, however, the affected models contain a small gear in the brakes that is prone to fracturing.
The electric vehicle manufacturer produced 83,922 vehicles in 2016, with sales expanding with the popularity of its sedan and SUV models. The replacement process takes only 45 minutes, and assuming every potentially affected vehicle is brought in to Tesla, the recall process will be over by October 2017. Tesla's valuation has been climbing in part due to the upcoming introduction of its most affordable vehicle, the Model 3, which will require manufacturing at much greater scale.
The company stated that they have "determined that only a very small percentage of gears in vehicles built during this period were manufactured improperly".
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"Service capacity will not be an issue", a Tesla spokeswoman reportedly said in an email.
According to the Tesla executive, one supercharger station will be able to handle six to eight vehicles at once.
There have been no reports of accidents or injuries relating to the defect.
Though Tesla stock shed 0.99 percent on Thursday, the stock traded volatile on Friday's pre-market trading.
The company issued a voluntary recall for 3,000 of its Model S cars in November 2015, due to seatbelt connectivity problems.