TechCrunch reports that Tesla notified owners of 53,000 Model S and Model X that it would voluntarily recall the vehicles after discovering a potential manufacturing issue that could leave the parking brake permanently engaged. In an email to owners Thursday, first revealed by TechCrunch, Tesla said that no injuries have been reported in relation to the defect, and that “we do not believe this issue could ever lead to a safety concern.”

There have been no reports of the electronic parking brake failing to hold a vehicle, the Elon Musk-led automaker said. In its letter to owners, Tesla wrote:

We have determined that the electric parking brakes installed on Model S and Model X vehicles built between February and October 2016 may contain a small gear that could have been manufactured improperly by our third‑party supplier.
Tesla Motors announces the recall of 50,000 Tesla Model S and Tesla Model X cars for a "brake issue".