Tesla has issued a voluntary recall on the Semi, a primary for the reason that firm started deliveries of the heavy-duty electrical vehicles to prospects in December 2022.

In line with recall filings posted on the web site of the Nationwide Freeway Visitors Security Administration, 35 Semi vehicles have been affected. The vehicles have been constructed with an digital parking brake valve module discovered to include a defect by provider Bendix in February 2023.

The defect left drivers weak to “rollaway” incidents and elevated the probability of a crash. In line with a recall discover, the faulty modules might “fail to maneuver into the park place when the parking brake is activated” leaving drivers unaware their Semi might roll away. The parking brake element defect has not resulted in a crash or any damages, in response to the filings.

Whereas Tesla confirmed off the design of the Semi in late 2017, it solely started producing the vehicles in Nevada final yr and started deliveries to early buyer Pepsi at a advertising and marketing occasion late final yr.

In filings on the NHTSA website, Tesla mentioned it is going to “substitute the parking brake valve module with a revised half with improved internals that stop air leakage and permit the motive force to interact and disengage parking brakes.”

Elon Musk’s electrical car maker is anticipated to problem its first-quarter, 2023 car manufacturing and deliveries report this weekend. Tesla has not beforehand damaged out Semi manufacturing and supply numbers in its quarterly updates.