Through the collective voice of the US Rubber Manufacturers Association (RMA) the American tyre industry has registered its “strong opposition” to the proposed federal TPMS regulation, saying: “It may create a false sense of security among consumers.”

According to the association, the rule, proposed by the NHTSA, does not meet the government’s objective of improving consumer safety. Instead the association warns that the rule in its current format may increase the risk of tyre failures.

The proposed rule would mandate that every car, SUV, pickup truck and minivan be equipped with a tyre pressure monitoring system that warns drivers when tyre pressure is 25 per cent below the vehicle manufacturer’s recommended inflation pressure. The RMA warns that a 25 per cent drop in a tyre’s recommended pressure would still leave the tyre in an unsafe condition. In a statement released by the association the RMA suggested that under the proposed standard, “motorists could be driving for thousands of miles on tyres that are appreciably under-inflated but still not receive a warning.”

“A tyre pressure monitor that doesn’t provide a timely low-pressure warning to motorists will not enhance safety,” Mr Shea commented adding: “A tyre pressure monitoring system is meant to supplement, not replace, regular tyre maintenance by consumers.”

The RMA supported its argument with the results of research it conducted in 2003. It found that nearly two-thirds of US motorists would be less likely to check their tyre pressure regularly with a TPMS-equipped vehicle. Other criticisms put forward by the RMA include: The fact that the TPMS would not be required to be tested at speeds of above 63 mph; at temperatures below freezing or above 40 degrees Celsius; during turning and braking manoeuvres; or on secondary roads. The RMA also criticised the suggestion that the TPMS system would not be required to work with replacement or full-size spare tyres.

“In short, it is contrary to NHTSA’s mission to promote highway safety to promulgate a TPMS standard that may create a false sense of security among consumers about an issue as important as tyre inflation pressure,” the RMA said stating, “our intent is to work with NHTSA to get this regulation right and to get it done soon,” said RMA president and CEO, Donald B Shea, said.