WASHINGTON - Bridgestone America is recalling more than 4,000 Bridgestone R192 truck/bus tires (size 275/70R22.5) used on intra-city transit buses. 

These tires feature a sidewall wear indicator (dimple) that technicians use to monitor sidewall wear. The specified depth of the tire's dimples may result in exposed body ply cord. Over time, this condition could result in the deterioration of the body ply cord, creating the potential for air loss at the location of the dimple, according to the National Highway Traffic Safety Administration. 

Air loss in the tire will increase the risk of a crash. 

Bridgestone will replace the affected tires free of charge. The safety recall is expected to begin during July. Owners can contact Bridgestone at (800) 342-6453.