{"vehicle":{"id":"2020_hyundai_elantra","year":2020,"make":"Hyundai","model":"Elantra"},"code":"P1603","generic":false,"description":null,"bulletins":{"as_of":"2026-10-19","count":3,"bulletins":[{"nhtsa_id":10210209,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-04-08","date":"2022-03-21","document_id":"22-01-030H","mfr_campaign":null,"component":"POWER TRAIN","summary":"Certain 20MY Elantra (AD/ADa) vehicles may experience an illuminated check engine warning light due to Diagnostic Trouble Codes (DTC) listed below. Perform the Transmission Control Unit (TCU) update, and, if necessary, replace the IVT (Intelligent Variable Transmission) to resolve this condition. This update also includes the software for optimizing CLR_DIST (distance traveled since DTCs cleared) display. • TCU DTC Codes: P0730, P0731, P0741, P0867, P1603","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10210209-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10210209-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10210209"},{"nhtsa_id":10177137,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-07-08","date":"2020-06-24","document_id":"Campaign T5B Dea","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING; POWER TRAIN","summary":"Certain vehicles may experience an illuminated warning light due to Diagnostic Trouble Codes (DTC). This service campaign provides information on the procedures to perform the ECU and TCU update, and, if necessary, replace the IVT (Intelligent Variable Transmission) to resolve this condition. • TCU DTC Codes: P0730, P0731, P0741, P0867, P1603 • ECU DTC Codes: P0106, P0068, P0101","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177137-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177137-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10177137"},{"nhtsa_id":10177135,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-07-08","date":"2020-06-24","document_id":"20-01-028H","mfr_campaign":null,"component":"EQUIPMENT; ENGINE AND ENGINE COOLING; POWER TRAIN","summary":"Certain vehicles may experience an illuminated warning light due to Diagnostic Trouble Codes (DTC). Perform the ECU and TCU update, and, if necessary, replace the IVT (Intelligent Variable Transmission) to resolve this condition. • TCU DTC Codes: P0730, P0731, P0741, P0867, P1603 • ECU DTC Codes: P0106, P0068, P0101","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177135-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10177135-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10177135"}],"url":"https://open.wenmarpro.com/makes/hyundai/elantra/2020/bulletins?code=P1603"},"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/hyundai/elantra/2020/codes/P1603","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."]}