{"vehicle":{"id":"2016_chrysler_300","year":2016,"make":"Chrysler","model":"300"},"code":"P0456","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":14,"bulletins":[{"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":10224756,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-24","date":"2017-08-23","document_id":"1807517","mfr_campaign":null,"component":"BACK OVER PREVENTION; SEAT BELTS; ELECTRICAL SYSTEM; POWER TRAIN; AIR BAGS; EXTERIOR LIGHTING","summary":"Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming of the Powertrain Control Module (PCM) with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following DTCs: P000B - Bank 1 Camshaft 2 Position Slow Response. P0016 - Crankshaft/Camshaft Timing Misalignment - Bank 1 Sensor 1. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0441 - EVAP Purge System Performance. P0455 - EVAP System Large Leak. P2610 - PCM Internal Engine Off Timer Performance. P0456 - EVAP System Small Leak. P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible. Customers may also notice the following condition(s): Brief engine idle fluctuation while in hot ambient temperatures. A slight hesitation during light pedal application after engine cold start. Driveline noises. Engine stumble/hesitation on a very hard pedal acceleration from a dead stop. Transmission enhancements during low-speed braking turning maneuvers. False detonation (spark knock) detected during a wide-open throttle (LA Challenger Sales Codes ESH with DEC only). In addition, the following software enhancements are available: Reduce bumps felt on light to medium decal braking and coming to a stop. Launch spark improvement change from 35 MPH to 10 MPH. Reverse lock out speed change from 10 MPH to 3 MPH (Sales Code DEC only). Torque security calibration changes to desensitize brake throttle override entry conditions. Calibration changes to address engine speed undershoot/overshoot during clutch disengagement when coming to a stop (Sales Code DEC only). Start fuel and transient fuel calibration change for improved drivability robustness. Purge calibration changes for a more robust purge volume result at altitude. Individual Cylinder Fuel Control (ICFC) calibration changes for improved fueling offset accuracy.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10224756-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10224756-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10224756"},{"nhtsa_id":10224750,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-24","date":"2017-08-18","document_id":"1807617","mfr_campaign":null,"component":"POWER TRAIN","summary":"Flash: Powertrain Diagnostic and System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DiagnosticTrouble Codes (DTCs) have been set:P2066 - Fuel Level Sensor 2 Performance (Sales Codes ERB with AHB or AHV only). P0335 - Crankshaft Position Sensor Circuit. P0456 - EVAP System Small Leak. P2610 - PCM Internal Engine Off Timer Performance. In addition to the above DTCs, this software release also includes:Enhancements to the disable misfire monitor when P0335 is present. Add a global disable to small leak monitor when the fuel level is above88%. Update small leak diagnostic to require five minutes of engine run-time and120 minutes of engine off-time. Updates to prevent false failure due to wrong ambient temperature reading.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10224750-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10224750-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10224750"},{"nhtsa_id":10221890,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2020-08-27","document_id":"1807020","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with updated software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in memory:P0456 - EVAP System Small Leak. P0335 - Crankshaft Position Sensor Circuit. P2610 - PCM Internal Engine Off Timer Performance. In addition, customers with an (LD) pursuit vehicle may experience the following condition:An unpleasant odor in the vehicle under certain extreme ambient conditions(Sales Codes EZH with AHB or AHV only).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10221890-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10221890-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221890"},{"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"},{"nhtsa_id":10218280,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-08-22","date":"2016-06-23","document_id":"18-073-16","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; EXTERIOR LIGHTING; BACK OVER PREVENTION","summary":"Flash: 3.6L Powertrain Diagnostic And System Enhancements. This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · P0335 - Crankshaft Position Sensor Circuit. · P0456 - EVAP System Small Leak. · P2610 - PCM Internal Engine Off Timer Performance. In addition to the above DTCs, this software release also includes: · Enhancements to the disable misfire monitor when P0335 is present. · Add a global disable to small leak monitor when the fuel level is above 88%. · Update small leak diagnostic to require 5 minutes of engine runtime and 120 minutes of engine off time. · Updates to prevent false failure due to wrong ambient temperature reading.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10218280-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10218280-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10218280"},{"nhtsa_id":10218279,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-08-22","date":"2016-06-23","document_id":"18-074-16","mfr_campaign":null,"component":"POWER TRAIN","summary":"Flash: Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · P0456 - EVAP System Small Leak. · P0335 - Crankshaft Position Sensor Circuit. · P2610 - PCM Internal Engine Off Timer Performance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10218279-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10218279-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10218279"},{"nhtsa_id":10180280,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-09-28","date":"2020-08-27","document_id":"18-070-20","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE; ELECTRICAL SYSTEM","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with updated software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in memory:P0456 - EVAP System Small Leak. P0335 - Crankshaft Position Sensor Circuit. P2610 - PCM Internal Engine Off Timer Performance. In addition, customers with an (LD) pursuit vehicle may experience the following condition:An unpleasant odor in the vehicle under certain extreme ambient conditions(Sales Codes EZH with AHB or AHV only).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180280-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10180280-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10180280"},{"nhtsa_id":10169219,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-12-16","date":"2019-11-01","document_id":"18-089-19","mfr_campaign":null,"component":"FUEL SYSTEM, GASOLINE; ENGINE","summary":"wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169219-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169219-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10169219"},{"nhtsa_id":10141318,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-18","date":"2016-02-25","document_id":"18-020-16","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: 6.4L Powertrain Diagnostic And System Improvements This bulletin involves reprogramming of the Powertrain Control Module (PCM) with the latest software. Customers may experience one or more of the following symptoms and/or a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): · P0456 - EVAP System Small Leak. · P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible. Customers may also notice the following condition(s): · Brief engine idle fluctuation while in hot ambient temperatures. · A slight hesitation during light pedal application after engine cold start. · Driveline noises. · Engine stumble/hesitation on a very hard pedal acceleration from a dead stop. · Transmission enhancements during low speed braking turning maneuvers. · False detonation (spark knock) detected during a wide open throttle (LA) Challenger (Sales Codes ESH with DEC only). In addition, the following software enhancement is available: · Calibration Improvements for non-adaptive cruise control equipped vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10141318-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10141318-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10141318"}],"url":"https://open.wenmarpro.com/makes/chrysler/300/2016/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/chrysler/300/2016/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."]}