MOLINE, IL (WCMH) — Several models of John Deere lawn tractors were recalled due to faulty safety systems.

According to the Consumer Product Safety Commission, the reverse implementation system option in model X710, X730, X734, X738, and X739 tractors can fail, posing a laceration hazard to bystanders.

The reverse implementation option system is a safety system that shuts off power to the mower bladed when the tractor is placed in reverse.

This recall involves John Deere models X710, X730, X734, X738, and X739 lawn and garden tractors with serial numbers beginning with 1M0X.

The tractors have “John Deere” printed on the side and are green and yellow with yellow rims. The model number is on both sides of the engine hood. The serial number is located on the right side, below the foot rest.

John Deere independent dealers sold the affected models nationwide from December 2015 through July 2016 for between $8,800 and $11,700.

The CPSC recommends that people immediately stop using these recalled tractors and contact a John Deere dealer for a free repair. John Deere is contacting all registered owners of the recalled lawn and garden tractors directly.