JD Power Reliabilty Survey USA: 2012

I'm not a huge fan of reliability surveys. Some failures are minor, others major. Some not really an issue, others really frustrating or annoying. These surveys don't seem to differentiate. Also, really poor reliability does go against a brand, but generally people don't get put off. Customer satisfaction is much broader than this sort of survey. Are they useless? No, otherwise I wouldn't bother