This may affect some of you:

NHTSA Campaign ID Number: 10T001
Synopsis:
Certain Yokohama Tires, size P215/60R15 AVID H4S 93H, manufactured between December 2, 2007, and September 19, 2009, fail to conform to the tire identification requirement Of Federal Motor Vehicle Safety Standard No. 139, "New Pneumatic Radial Tires for Light Vehicles." The molded markings on one sidewall do not contain the complete tire identification number (tin) or partial (tin) as required. The lack of a tin on both sides of the tire could make it more difficult for consumers to identify these tires if, in the future, a safety-related performance issue were to be discovered. As a consequence, there is a risk that the tires would not be removed from service, which, in turn, could increase the risk of a vehicle crash. Yokohama's petition for relief from remedy based on its belief that the noncompliance was inconsequential to motor vehicle safety was denied by NHTSA on February 16, 2012. Accordingly, Yokohama will conduct a safety recall campaign. It will notify registered owners and provide free replacement tires. The safety recall is expected to begin on or about April 6, 2012. Owners may contact Yokohama Campaign Service Center at 1-888-801-4162.
For more information for this particular recall, please go to 10T001.

And this one:
NHTSA Campaign ID Number: 09T014
Synopsis:
Certain Yokohama replacement tires, size 205/50R16 A680 87V, manufactured between September 1, 2007, and November 28, 2009, fail to conform to the requirements of Federal Motor Vehicle Safety Standard No. 139, "New Pneumatic Radial Tires for Light Vehicles." The molded markings on one sidewall do not contain the complete Tire Identification Number (TIN) or partial (TIN) as required. The lack of a tin on both sides of the tire could make it more difficult for consumers to identify these tires if, in the future, a safety-related performance issue were to be discovered. As a consequence, there is a risk that the tires would not be removed from service, which, in turn, could increase the risk of a vehicle crash. The safety recall is expected to begin on or about April 6, 2012. Owners may contact Yokohama Campaign Service Center at 1-888-801-4162.