The recall affects Mazda 6 vehicles from model years 2015 and 2016.
The automaker says that wires under the front passenger seat can rub against welding debris, causing them to short out. A loss of power-assisted steering can increase the risk of a crash, Mazda said.
Affected vehicles that are having the problem should display multiple warning lights.
Mazda dealers will inspect the vehicles and install insulating tape or a protective pad to shield the wires. The recall is scheduled to begin on September 29.
No accidents or other incidents have been associated with the recall to date, Mazda said.