{"nhtsa_id":10029186,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-06-24","date":"2009-02-10","document_id":"TSB-74B175","mfr_campaign":null,"replaces":null,"component":"STRUCTURE:BODY; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY","mfr_system":null,"summary":"PIERCE MFG: MULTIPLE UNITS HAVE EXPERIENCED MOISTURE COLLECTING WITHIN THE ROTO MOLDED EVAPORATOR HOUSING. MODEL YEARS UNKNOWN. PROPER CYCLING OF AIR CONDITION SYSTEM. UPDATED ELECTRIC HARNESS. LOWER BATTERY BOX DUE TO POSITIVE POST. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10029186","components":[{"id":"structure-body","name":"Body and frame","parent":null},{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null},{"id":"battery","name":"12-volt battery","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"PIERCE","model":"IMPEL","year_from":2007,"year_to":2009,"match":null,"vehicle_ids":[]},{"make":"PIERCE","model":"VELOCITY","year_from":2007,"year_to":2009,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}