{"nhtsa_id":10111821,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-15","date":"2014-04-23","document_id":"PIP4887A","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ELECTRICAL SYSTEM","mfr_system":null,"summary":"This Preliminary Information communication provides information to the technician about vehicles that have a ?Service Exhaust Fluid System? and a ?See Owner?s Manual Now? message displayed on the Instrument Panel Cluster. Technician may find reductant level sensor Diagnostic Trouble Codes P203D, P21AB, and P21B0 set. Technician will need to follow published Service Information diagnostics for the Diagnostic Trouble Codes that are set. If no wiring concerns are found replace the Diesel Exhaust Fluid tank assembly.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10111821-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10111821-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10111821","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":["P203D","P21AB","P21B0"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2010,"year_to":2011,"match":"exact","vehicle_ids":["2010_chevrolet_express","2011_chevrolet_express"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2010,"year_to":2011,"match":"base","vehicle_ids":["2010_chevrolet_silverado","2011_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2010,"year_to":2011,"match":"base","vehicle_ids":["2010_chevrolet_silverado","2011_chevrolet_silverado"]},{"make":"GMC","model":"SAVANA","year_from":2010,"year_to":2011,"match":"exact","vehicle_ids":["2010_gmc_savana","2011_gmc_savana"]},{"make":"GMC","model":"SIERRA 2500","year_from":2010,"year_to":2011,"match":"base","vehicle_ids":["2010_gmc_sierra","2011_gmc_sierra"]},{"make":"GMC","model":"SIERRA DENALI","year_from":2010,"year_to":2011,"match":"base","vehicle_ids":["2010_gmc_sierra","2011_gmc_sierra"]}],"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":[]}