{"nhtsa_id":10112520,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-15","date":"2012-10-29","document_id":"PIP4775B","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on shortly after cold start. Technician will find a Diagnostic Trouble Code P2181 in the Engine Control Module. Technician will need to inspect the rear heater pipes shown below for proper installation.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10112520-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10112520-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10112520","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":["P2181"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2010,"year_to":2013,"match":"exact","vehicle_ids":["2010_chevrolet_express","2011_chevrolet_express","2012_chevrolet_express","2013_chevrolet_express"]},{"make":"GMC","model":"SAVANA","year_from":2010,"year_to":2013,"match":"exact","vehicle_ids":["2010_gmc_savana","2011_gmc_savana","2012_gmc_savana","2013_gmc_savana"]}],"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":[]}