The NHTSA opened an audit into more than 137,000 Kia Soul and Seltos vehicles following concerns that a previous repair may not be working.

Kia's recall remedy for just over 137,000 units of the Seltos and Soul crossovers may not be as effective as previously thought

The National Highway Traffic Safety Administration said it had opened an audit into 137,256 Kia America vehicles on Friday to assess the effectiveness of the automaker's remedy for defective piston oil rings in some Seltos and Soul models.

Do you own a Kia Seltos or Kia Soul? You may have a potential fire hazard on your hands, even if your vehicle had a recall fix carried out earlier this year. According to the National Highway Traffic Safety Administration's Office of Defects Investigation,