{"vehicle":{"id":"2017_acura_tlx","year":2017,"make":"Acura","model":"TLX"},"code":"P0420","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":6,"bulletins":[{"nhtsa_id":10164056,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-08-20","date":"2019-08-14","document_id":"B19-049","mfr_campaign":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING","summary":"Service Bulletin - The MIL comes on with DTC P0420 (rear bank catalyst system efficiency below threshold [bank 1]).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10164056-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10164056-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10164056"},{"nhtsa_id":10152738,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-02-10","date":"2019-01-02","document_id":"BPaS01022019906","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR","summary":"Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2015-2019 TLXs with a client complaint of the Malfunction Indicator Lamp (MIL) on with DTC P0420 (Rear Bank Catalyst System Efficiency Below Threshold [Bank 2]) and/or P0430 (Front Bank Catalyst Sytem Efficiency Below Threshold [Bank 2]) stored. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10152738-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10152738-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10152738"},{"nhtsa_id":10150286,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-07","date":"2018-11-27","document_id":"BPaS11272018901","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING","summary":"Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2015-2019 TLXs with a client complaint of the Malfunction Indicator Lamp (MIL) on with DTC P0420 (Rear Bank Catalyst System Efficiency Below Threshold [Bank 2]) and/or P0430 (Front Bank Catalyst Sytem Efficiency Below Threshold [Bank 2]) stored. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150286-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150286-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10150286"},{"nhtsa_id":10150284,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-07","date":"2018-11-26","document_id":"BPaS11262018905","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING","summary":"Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2015-2019 TLXs with a client complaint of the Malfunction Indicator Lamp (MIL) on with DTC P0420 (Rear Bank Catalyst System Efficiency Below Threshold [Bank 2]) and/or P0430 (Front Bank Catalyst Sytem Efficiency Below Threshold [Bank 2]) stored. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150284-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150284-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10150284"},{"nhtsa_id":10149656,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-03","date":"2018-11-05","document_id":"BPaS11052018904","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2015-2019 TLXs with a client complaint of the Malfunction Indicator Lamp (MIL) on with DTC P0420 (Rear Bank Catalyst System Efficiency Below Threshold [Bank 2]) and/or P0430 (Front Bank Catalyst Sytem Efficiency Below Threshold [Bank 2]) stored. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10149656-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10149656-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10149656"},{"nhtsa_id":10146080,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-10-29","date":"2018-10-17","document_id":"BPaS10172018906","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM","summary":"Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2015-2019 TLXs with a client complaint of the Malfunction Indicator Lamp (MIL) on with DTC P0420 (Rear Bank Catalyst System Efficiency Below Threshold [Bank 2]) and/or P0430 (Front Bank Catalyst Sytem Efficiency Below Threshold [Bank 2]) stored. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10146080-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10146080-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10146080"}],"url":"https://open.wenmarpro.com/makes/acura/tlx/2017/bulletins?code=P0420"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/acura/tlx/2017/codes/P0420","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}