{"nhtsa_id":10158849,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-04-22","date":"2019-03-19","document_id":"19NA057","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE; ENGINE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT","mfr_system":null,"summary":"This Technical bulletin provides a procedure for dealers/technicians to correct a condition of Malfunction Indicator Lamp (MIL) Illuminated, DTC P0420 Set.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10158849-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10158849-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10158849","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"software","name":"Software","parent":"electrical"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":["P0420"],"topics":[],"vehicles":[{"make":"BUICK","model":"ENCORE","year_from":2013,"year_to":2015,"match":"exact","vehicle_ids":["2013_buick_encore","2014_buick_encore","2015_buick_encore"]},{"make":"CHEVROLET","model":"TRAX","year_from":2013,"year_to":2015,"match":"exact","vehicle_ids":["2013_chevrolet_trax","2014_chevrolet_trax","2015_chevrolet_trax"]}],"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":[]}