The seat switch on roughly 3,700 BigDog and Hustler riding mowers manufactured by Kansas-based Excel Industries can fail to detect that the rider has left the seat, allowing the mower to continue to operate, posing a risk of injury.

The BigDog mower is red with a grey seat and a black roll bar. The words BigDog Diablo are printed below the front of the seat and on the sides of the mower.

The Hustler mowers are yellow with grey seats. The Hustler mowers have “Hustler” on the front of the footrest and say FastTrak, FastTrakSD or RaptorSD (pictured) in red on the yellow bar below the front of the seat. The FastTrak and FastTrakSD mowers have a black roll bar.

All mowers have right and left steering handles. The recalled mowers have serial numbers between 13082168 and 14012774 for the BigDog R Diablo, between 13081106 and 14013675 for FastTrak, between 13081129 and 14013689 for FasTrakSD and between 13081376 and 14013882 for Hustler RaptorSD. The serial number appears on a tag located on the left side of the seat platform in front of the fender.

No injuries have been reported thus far.

Remedy: Consumers should stop using the mower immediately and contact your dealer to schedule an appointment to receive a free seat repair.

Sold at: BigDog and Hustler dealers nationwide from August 2013 to January 2014 for about $4,600 to $8,050.