U.S. drivers are less attentive to their tires than a year ago, according to a nationwide survey. Just over 50 percent of drivers say they have checked their tire pressure within the past month compared to 70 percent last year at a time when fuel prices peaked. The Rubber Manufacturers Association (RMA) recommends that drivers check tire pressure every month to promote vehicle safety, improve fuel efficiency and maximize tire longevity. The National Highway Traffic Safety Administration (NHTSA) reported that low tire pressure-related crashes are to blame for 660 fatalities and 33,000 injuries every year. NHTSA estimates that about one in four cars and one in three light trucks have at least one significantly under-inflated tire. Driver complacency may grow as mandatory tire pressure monitoring systems (TPMS) begin to be installed in vehicles. In 2008, all new cars will be equipped with a TPMS that will alert drivers when tire pressure drops 25 percent. Survey results indicate that more than two-thirds of drivers said that they would be less concerned with regular tire maintenance if their vehicle were equipped with TPMS. An RMA nationwide survey conducted in February found: -- Only 55 percent of drivers said they have checked tire pressure within the past month compared to 70 percent last year when fuel prices peaked. -- A total of 40 percent of drivers said that if their vehicle were equipped with a tire pressure monitoring system, they would either never check tire pressure (16 percent) or would only check tire pressure if they saw the dashboard warning light (24 percent). -- Nearly seven in ten drivers wash their vehicle every month but barely more than half check tire pressure monthly. -- 45 percent of drivers wrongly believe that the correct inflation pressure is printed on the tire sidewall. Another 15 percent do not know where to find the correct pressure. -- 26 percent of drivers wrongly believe that the best time to check their tires is when they are warm after being driven for at least a few miles. -- 63 percent of motorists cite checking tire pressure as a top fuel saving tip. (2006 survey).