NISSAN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. WHEEL VALVE STEM NUT. SOME MODEL YEAR 2008-2009 VEHICLES MAY HAVE BEEN BUILT WITH TIRE PRESSURE MONITOR SYSTEM (TPMS) TRANSMITTER NUTS THAT WERE NOT MANUFACTURED TO SPECIFICATION. OVER TIME, THESE NUTS MAY CORRODE AND POTENTIALLY CRACK, ESPECIALLY IN AREAS WHERE HEAVY CONCENTRATIONS OF ROAD SALT ARE USED. *PE
