Remember the Ford Explorer/Firestone tire debacle from a decade ago? Thousands rolled-over and much of the blame fell on under inflated tires, costing the Ford billions of dollars to replace the tires on just about every Explorer still left on the ...road. The other fallout from "Explorer-gate" was institution of the Tire Pressure Monitoring System that's now a legal standard on every car and truck built since 2008.

TPMS sensors constantly measure the pressure in all four tires, and when one or more tires is more than 25 percent below the recommended amount, a light illuminates on the gauge cluster. If you recognize the light, you're among the 54 percent who know what it means. But more importantly, less than half of the population doesn't.

TPMS maker Schrader recently surveyed drivers to see if there were knowledgeable about all things TPMS, and the results had to be a bit disappointing. First, the good news: 96 percent of all drivers surveyed felt that under-inflated tires were a serious safety problem. Now the bad news: Only 44 percent of drivers polled regularly check their tire pressure. Furthermore, one third of drivers surveyed didn't know what TPMS was or what it was used for. Another 44 percent were unaware what the symbol was supposed to represent, while still another 14 percent thought the symbol identified a problem of the non-tire variety.

In order to combat some of the ignorance among motorists about one of its main products, Schrader has introduced its TPMS Made Simple website. While it's not exactly riveting stuff, the site is chock full of information about TPMS, including what to do when that warning light in your gauge cluster illuminates (Hint: check your tires) and the economic benefit of properly inflated rubber, including improved fuel economy and longer lasting tires. Head over to the site to become a TPMS expert. www.tpsmadesimple.comSee More