EDITOR'S NOTE: A previous version of this story didn't make clear the software is not the cause of engine failure.
Hyundai Canada is recalling 255,370 vehicles, including some of its top-selling utility vehicles, because current software might not notify owners of potential engines failure.
The affected vehicles include the Santa Fe Sport and Tucson utility vehicles and the Sonata sedan.
The problem involves software for the engine control module (ECM). The recall provides an update to the ECM to detect potential problems before an engine fails, according to a notice on Transport Canada’s website.
An engine failure would cause a sudden loss of power with an inability to restart, the safety agency warns. A sudden loss of engine power could increase the risk of an accident.
"In an effort to improve customer satisfaction and in an abundance of caution, Hyundai is offering a Knock Sensor Detection Software update as a preventative measure to provide advance warning to the vehicle operator of an engine problem in the unlikely event that one should occur," Hyundai Canada said in a statement.
The automaker will notify owners of affected vehicles by mail. They will be instructed to take their vehicle to a dealer to update the software.
Affected model years range from 2011 through 2018.
The Tucson and Santa Fe are routinely the automaker’s top-two selling utility vehicles in Canada. Hyundai sold 28,634 Tucsons and 24,040 Santa Fes last year.