The probe covers an estimated 280,000 vehicles. Five drivers alleged in complaints they couldn't steer the vehicles at all. Seven more cited a loss of power steering that required increased steering effort.
There was one report of a crash but no complaints of any injuries.
The agency says in a document posted Tuesday on its website that loss of steering control can be accompanied by messages to drivers indicating that the power steering assist has been reduced or disabled.
The document says investigators will look into how often the problem happens, manufacturing processes and the severity of the problem.
The probe is at least the sixth started by the agency into Tesla vehicles in the past three years. Investigators are looking into Teslas that can crash into parked emergency vehicles while running on the Autopilot partially automated driving system, emergency braking for no reason, suspension failures, steering wheels that can fall off, and front seat belts that may not be connected properly.
Messages were left Tuesday seeking comment from Tesla.
From Nvidia to Microsoft, Gil Luria, D.A. Davidson senior research analyst, breaks down the Magnificent Seven, plus whether the Vision Pro can move the needle for Apple.
Suzy Batiz, founder and CEO of ~Pourri, discusses creating Poo-Pourri, building out multiple businesses, and why she believes any problem can be overcome.
Fresh off his unanimous appointment as interim CEO, Dax Dasilva shares his strategy for Lightspeed and why growth and profitability are his biggest focus.
Eddie Ghabour, co-founder and owner of KEY Advisors Wealth Management, explains why he’s investing in India, what could happen if inflation rises again, and the long-term ‘debt bubble’ looming.
The company behind Squishmallows says Build-A-Bear's new Skoosherz toys are a copy of their own plushies. Build-A-Bear filed their own suit basically responding, "No they're not!"
While tech employees worry about artificial intelligence taking over their jobs, Microsoft says Iran, North Korea, and more U.S. adversaries are beginning to use AI in cyber spying.
The self-proclaimed "only Post who worked at Kellogg" was a military veteran who fought in World War II before inventing everyone’s favorite fruit-filled breakfast ravioli.
Kevin Gordon, Senior Investment Research Manager at Charles Schwab, shares his thoughts on how investors can take advantage of the current bull market while keeping in mind the impacts of Fed policy and inflation.
