{"vehicle":{"id":"2019_dodge_challenger","year":2019,"make":"Dodge","model":"Challenger"},"code":"P0456","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":21,"bulletins":[{"nhtsa_id":11012186,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-01-03","date":"2024-12-19","document_id":"18-090-24","mfr_campaign":null,"component":"POWER TRAIN","summary":"\"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0420 - Catalyst System Efficiency Below Threshold Bank 1. ● P0430 - Catalyst System Efficiency Below Threshold Bank 2.** ● P0456 - EVAP System Small Leak. NOTE: If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. This bulletin involves reprogramming the PCM with the latest available software.\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11012186-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11012186-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11012186"},{"nhtsa_id":10236933,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-05-30","date":"2023-04-15","document_id":"1804823","mfr_campaign":null,"component":"EQUIPMENT; ENGINE AND ENGINE COOLING","summary":"wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10236933-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10236933-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10236933"},{"nhtsa_id":10229173,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-01-09","date":"2022-03-31","document_id":"1806422","mfr_campaign":null,"component":"SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION; EXTERIOR LIGHTING; ELECTRICAL SYSTEM","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 - EVAP Pressure Switch Stuck Closed. P0455 - EVAP System Large Leak. P0440 - General EVAP System Failure. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. Customers may also experience the following:Vehicle willfail to start when cold at times. Noise heard from the drivetrain while stationary and vehicle is in Sport/Trackmodes. Extended engine crank times.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10229173-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10229173-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10229173"},{"nhtsa_id":10229172,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-01-09","date":"2022-03-31","document_id":"1806622","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; BACK OVER PREVENTION; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 - EVAP Pressure Switch Stuck Closed. P0455 - EVAP System Large Leak. P0440 - General EVAP System Failure. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. Customers may also experience one or more of the following: Vehicle will fail to start when cold at times. Noise heard from the drivetrain while stationary and vehicle is in Sport/Trackmodes. Extended engine crank times.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10229172-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10229172-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10229172"},{"nhtsa_id":10228027,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-12-19","date":"2022-04-07","document_id":"1807422","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; EXTERIOR LIGHTING; BACK OVER PREVENTION; ELECTRICAL SYSTEM:WIRING:POSITION/LIMIT SENSOR/SWITCH; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 - EVAP Pressure Switch Stuck Closed. P0455 - EVAP System Large Leak. P0440 - General EVAP System Failure. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak VerificationTest (SLVT) to determine if a leak is present in the system. Customers may also comment on one or more of the following: Vehicle will fail to start when cold at times. Noise heard from the drivetrain while stationary and vehicle is in Sport/Track modes.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10228027-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10228027-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10228027"},{"nhtsa_id":10223211,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2022-03-31","document_id":"1806422","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 - EVAP Pressure Switch Stuck Closed. P0455 - EVAP System Large Leak. P0440 - General EVAP System Failure. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. Customers may also experience the following:Vehicle willfail to start when cold at times. Noise heard from the drivetrain while stationary and vehicle is in Sport/Trackmodes. Extended engine crank times.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10223211-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10223211-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10223211"},{"nhtsa_id":10223210,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2022-03-31","document_id":"1806622","mfr_campaign":null,"component":"SERVICE BRAKES, HYDRAULIC; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; BACK OVER PREVENTION","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 - EVAP Pressure Switch Stuck Closed. P0455 - EVAP System Large Leak. P0440 - General EVAP System Failure. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. Customers may also experience one or more of the following: Vehicle will fail to start when cold at times. Noise heard from the drivetrain while stationary and vehicle is in Sport/Trackmodes. Extended engine crank times.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10223210-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10223210-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10223210"},{"nhtsa_id":10220829,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2022-03-31","document_id":"1806422","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 - EVAP Pressure Switch Stuck Closed. P0455 - EVAP System Large Leak. P0440 - General EVAP System Failure. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. Customers may also experience the following:Vehicle willfail to start when cold at times. Noise heard from the drivetrain while stationary and vehicle is in Sport/Trackmodes. Extended engine crank times.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10220829-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10220829-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10220829"},{"nhtsa_id":10220828,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2022-03-31","document_id":"1806622","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 - EVAP Pressure Switch Stuck Closed. P0455 - EVAP System Large Leak. P0440 - General EVAP System Failure. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. Customers may also experience one or more of the following: Vehicle will fail to start when cold at times. Noise heard from the drivetrain while stationary and vehicle is in Sport/Trackmodes. Extended engine crank times.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10220828-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10220828-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10220828"},{"nhtsa_id":10220071,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-15","date":"2019-11-01","document_id":"1808919","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10220071-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10220071-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10220071"}],"url":"https://open.wenmarpro.com/makes/dodge/challenger/2019/bulletins?code=P0456"},"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/dodge/challenger/2019/codes/P0456","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."]}