The reason behind the NHTSA’s updated Federal Motor Vehicle Safety Standards (FMVSS) in 2007 is mainly to reduce tire failure or blowouts caused by tire degradation or underinflation. As such, FMVSS No. 138 and 139 require all passenger cars and light trucks to have an onboard tire pressure monitoring system (TPMS) to mitigate tire-related crashes. However, the NHTSA study revealed vehicles with lower tread depths or balding tires (between 0 and 4/32′) have a significantly higher chance of tire
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