{"nhtsa_id":10200177,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-08-09","date":"2021-06-01","document_id":"N212336570","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); FUEL SYSTEM, GASOLINE","mfr_system":null,"summary":"Service Update. Certain trucks may falsely set fuel injector diagnostic trouble codes P026C and/or P20EE. Dealers will reprogram the engine control module (ECM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10200177-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10200177-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10200177","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"engine-control-module","name":"Engine control module","parent":"engine"}],"codes":["P026C","P20EE"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 4500","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_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":[]}