One problem related to tire pressure monitoring system has been reported for the 2008 Smart Fortwo. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Smart Fortwo based on all problems reported for the 2008 Fortwo.
Valve stem on 2008 Smart Fortwo tpms (tire pressure monitoring system) is made of aluminum and corrodes due to salt. Valve stem is not replaceable so the entire sensor has to be replaced. Part was replaced with an aftermarket part (which has subsequently stopped working). Old part is available.