{"nhtsa_id":10155823,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-04-01","date":"2013-09-18","document_id":"Campaign Circula","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Emissions Service Action Circular (VR6 Engine Update ECM Software for Catalytic Converter Monitoring System): The ECM software for the catalytic converter monitoring system is too sensitive. This can cause the MIL to come on, and some vehicles may exceed Federal and/or California emissions standards. Also, in some cases this leads to unnecessary catalytic converter replacement. The corrective action taken for this issue was to Update ECM software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10155823-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10155823-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10155823","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"VOLKSWAGEN","model":"GOLF","year_from":1999,"year_to":2002,"match":"exact","vehicle_ids":["1999_volkswagen_golf","2000_volkswagen_golf","2001_volkswagen_golf","2002_volkswagen_golf"]},{"make":"VOLKSWAGEN","model":"GTI","year_from":1999,"year_to":2002,"match":"exact","vehicle_ids":["1999_volkswagen_gti","2000_volkswagen_gti","2001_volkswagen_gti","2002_volkswagen_gti"]},{"make":"VOLKSWAGEN","model":"JETTA","year_from":1999,"year_to":2002,"match":"exact","vehicle_ids":["1999_volkswagen_jetta","2000_volkswagen_jetta","2001_volkswagen_jetta","2002_volkswagen_jetta"]}],"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":[]}