This happened on the wife's van.
I Oct 2010 replaced the van with Yokohama AVID Touring-S 205/70R15 tires at 73K mileage on vehicle. Always, ensured they were rotated and balanced. Last year around June, noticed the lower side wall cracking near the rim area on all 4 tires. Estimated mileage on vehicle was about 89K or 90K. Tires mileage at or near 20K for less than 3 years.
I took vehicle to discount tire, lucky for the warranty on the tires. They replaced them all.
I am posting a couple pictures of the side wall cracking:
My vehicles has the same brand, size is different 205/60R16; but, have been issues with tires balance the last year. They correct it and still same thing. The just balanced the tires in January this year, at speed over 62 mph and you feel it. Now it is running 55 mph or higher, you can feel it.
I did a closer look at my vehicle and sure enough is it happening on the from and small cracks forming on the back.
Yokohama had a recall on the AVID Touring-S for only 215/65R16 manufactured from Feb 2009 to April 2009. The recalled happened in September 2012. Reading the pdf, has the same pattern.
I am going to the tire place in the morning. I will address the issue; but, should this be elevated to NTHSA folks, granted the sky will have to fall before they press the issue. I will also contact Yokohama directly on the matter.
Any other suggestions.