make sure customers learn about the recall and get free repairs. Patty Davis, CPSC spokeswoman, said it is important for customers to stop riding the vehicles and take them in for a free repair.

The agency said Medina-based Polaris — one of the largest players in the recreational vehicle category — knew some of its RZR models from 2013 to 2016 could catch fire and that the company had in fact received reports of 150 fires. One of the fires resulted in the death of a 15-year-old passenger. The company also knew of 11 reports of burn injuries and a fire that consumed 10 acres of land, the agency said.

"Despite having this information," the agency said, "Polaris failed to immediately notify CPSC of the defect or risk posed byagency said.

As far as defects involving Polaris Ranger four-wheelers, the CPSC said that in 2014, the company received 36 reports of fires involving some 2014 Rangers. The agency said Polaris made design changes to those 2014 models to prevent heat shields from coming loose, but didn't report the fire and heat-shield problem to the government until July 2016, when it recalled 42,500 Ranger 2014 models.

The CPSC said that after the recall, Polaris received customer reports of three more fires and several heat shields that loosened or fell off its model year 2015 Rangers.

"Polaris failed to immediately notify CPSC of the defect or risk posed by the model year 2015 [Ranger off-road vehicles] as required by federal law," the agency said. "By the time Polaris did report, it had