{"nhtsa_id":621934,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-05","date":"2001-06-22","document_id":"2400801","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:APPLIANCE:AIR CONDITIONER","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT POOR A/C PERFORMANCE AND / OR A/C EXPANSION VALVE NOISE. THIS BULLETIN INVOLVES PROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH NEW SOFTWARE AND REDUCING THE AMOUNT OF R134A REFRIGERANT IN THE SYSTEM TO 765 GRAMS (27 OZ OR 1.69 LBS). *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/621934","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"DODGE","model":"NEON","year_from":2001,"year_to":2001,"match":"exact","vehicle_ids":["2001_dodge_neon"]}],"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":[]}