TPMS is effective in combatting under-Inflation - NHTSA

ERJ staff report (DS)

Washington DC - In a 58-page report, the United States-based organisation NHTSA concludes that tyre pressure monitoring systems (TPMS) are effective in combatting under-inflation of tyres.

In a survey, the organisation studied tyre pressure in over 6000 vehicles. Of those without a TPMS, 23 percent had at least one tyre showing an under-inflation of 25 percent or more. In those fitted with a TPMS, the figure fell to 11.8 percent.

NHTSA said, “Based on these results, the presence

of TPMS on a vehicle of model years 2004 to 2007 is estimated to result in a 55.6-percent reduction in the

likelihood that the vehicle will have one or more severely underinflated tyres as defined by FMVSS No. 138.

The organisatino concluded, “ During the first eight years of operation TPMS is estimated to save a typical passenger car 9.32

gallons of fuel and a typical LTV 27.89 gallons of fuel. During 2011 TPMS is estimated to have saved $511

million across the vehicle fleet through reduced fuel consumption.”

NHTSA is seeking comments, which should be submitted before 19 March 2013.

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58-page report from NHTSA