{"vehicle":{"id":"2015_dodge_challenger","year":2015,"make":"Dodge","model":"Challenger"},"code":"P1DCD","generic":false,"description":null,"bulletins":{"as_of":"2026-10-19","count":10,"bulletins":[{"nhtsa_id":10229198,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-01-09","date":"2015-02-20","document_id":"2100915","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN; EQUIPMENT; EXTERIOR LIGHTING","summary":"Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following concerns. These concerns are broken up per engine and transmission combination. 6.2L engine (sales code ESD) equipped with an 8HP90 transmission (sales code DFE) ? Transmission will not upshift during Wide Open Throttle (WOT) acceleration. ? Harsh or inconsistent coasting downshifts. ? Transmission will not shift into 7th gear during high speed driving. ? Inconsistent or busy shifts during stop and go traffic. ? Inconsistent gear shift patterns when driving on grades. ? Malfunction Indicator Lamp (MIL) Illumination during ABS activated stops with Diagnostic Trouble Code (DTC) P1DCD TCM Monitoring Processor Performance, Multiple Clutches Locked Up. 6.4L engine (sales code ESG) and equipped with an 8HP70 transmission (sales code DFK) ? Harsh or inconsistent 1-2 upshift. ? Harsh of inconsistent coasting 4-3 downshift. ? Harsh or inconsistent gear engagement when shifting to drive or reverse. ? Instrument Panel Cluster (IPC) shows the incorrect gear when in manual mode. ? Harsh of inconsistent shifts during tip-in acceleration from closed throttle. ? Inconsistent gear shift patterns when driving on grades. ? Inconsistent release of Hill Start Assist during tip-in acceleration. ? Transmission upshifts on sweeping curves under track driving conditions.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10229198-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10229198-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10229198"},{"nhtsa_id":10223619,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2015-02-20","document_id":"2100915","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN","summary":"Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following concerns. These concerns are broken up per engine and transmission combination. 6.2L engine (sales code ESD) equipped with an 8HP90 transmission (sales code DFE) ? Transmission will not upshift during Wide Open Throttle (WOT) acceleration. ? Harsh or inconsistent coasting downshifts. ? Transmission will not shift into 7th gear during high speed driving. ? Inconsistent or busy shifts during stop and go traffic. ? Inconsistent gear shift patterns when driving on grades. ? Malfunction Indicator Lamp (MIL) Illumination during ABS activated stops with Diagnostic Trouble Code (DTC) P1DCD TCM Monitoring Processor Performance, Multiple Clutches Locked Up. 6.4L engine (sales code ESG) and equipped with an 8HP70 transmission (sales code DFK) ? Harsh or inconsistent 1-2 upshift. ? Harsh of inconsistent coasting 4-3 downshift. ? Harsh or inconsistent gear engagement when shifting to drive or reverse. ? Instrument Panel Cluster (IPC) shows the incorrect gear when in manual mode. ? Harsh of inconsistent shifts during tip-in acceleration from closed throttle. ? Inconsistent gear shift patterns when driving on grades. ? Inconsistent release of Hill Start Assist during tip-in acceleration. ? Transmission upshifts on sweeping curves under track driving conditions.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10223619-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10223619-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10223619"},{"nhtsa_id":10221532,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2015-02-20","document_id":"21-009-15","mfr_campaign":null,"component":"EXTERIOR LIGHTING; POWER TRAIN; ELECTRICAL SYSTEM; EQUIPMENT","summary":"Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following concerns. These concerns are broken up per engine and transmission combination. 6.2L engine (sales code ESD) equipped with an 8HP90 transmission (sales code DFE) ? Transmission will not upshift during Wide Open Throttle (WOT) acceleration. ? Harsh or inconsistent coasting downshifts. ? Transmission will not shift into 7th gear during high speed driving. ? Inconsistent or busy shifts during stop and go traffic. ? Inconsistent gear shift patterns when driving on grades. ? Malfunction Indicator Lamp (MIL) Illumination during ABS activated stops with Diagnostic Trouble Code (DTC) P1DCD TCM Monitoring Processor Performance, Multiple Clutches Locked Up. 6.4L engine (sales code ESG) and equipped with an 8HP70 transmission (sales code DFK) ? Harsh or inconsistent 1-2 upshift. ? Harsh of inconsistent coasting 4-3 downshift. ? Harsh or inconsistent gear engagement when shifting to drive or reverse. ? Instrument Panel Cluster (IPC) shows the incorrect gear when in manual mode. ? Harsh of inconsistent shifts during tip-in acceleration from closed throttle. ? Inconsistent gear shift patterns when driving on grades. ? Inconsistent release of Hill Start Assist during tip-in acceleration. ? Transmission upshifts on sweeping curves under track driving conditions.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10221532-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10221532-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221532"},{"nhtsa_id":10217608,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-08-08","date":"2016-06-17","document_id":"21-019-16","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience an erroneous Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble Code (DTC) stored in the TCM memory. 3.6L Engine (Sales Code ERB) with 845RE Transmission (Sales Code DFL): · **Improved shift quality.** · P1DCD - TCM monitoring processor performance multiple clutches locked up. · P1B13 - Park-By-Wire unintended out of park position. · P0734 - Gear 4 Shift Incorrect Ratio. 3.6L Engine (Sales Code ERB) with 8HP45 Transmission (Sales Code DFG): · **Improved shift quality.** · Harsh 2-1 downshift or bump at low speeds. · P0734 - Gear 4 Shift Incorrect Ratio. 3.0L Engine (Sales Code EHD) with 845RE Transmission (Sales Code DFL): · **Improved shift quality.** · P1DCD - TCM monitoring processor performance multiple clutches locked up. · P1B13 - Park-By-Wire unintended out of park position.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10217608-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10217608-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10217608"},{"nhtsa_id":10148957,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-26","date":"2015-08-05","document_id":"21-006-15 REV-B","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN","summary":"Flash: 845RE Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following Symptom/Condition(s) and/or a Malfunction Indicator Lamp (MIL) due to an erroneous Diagnostic Trouble Code (DTC): ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio set in the TCM memory. ? Harsh or erratic 8-6 downshift during freeway driving. ? Harsh or erratic 6-4 and/or 6-3 downshift during city driving. ? Harsh or erratic upshifts while in Sport Mode. ? Less than desired downshift timing (longer time to downshift than expected). ? Less than desired downshift feel during coasting decelerations and while passing. ? Less than desired shift feel when shifting from reverse to drive or drive to reverse while the vehicle is stationary (i.e. garage shift). ? Less than desired upshift feel during normal non-aggressive driving. ? Less than desired powertrain performance at higher altitudes. ? Less than desired paddle shifter operation.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10148957-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10148957-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10148957"},{"nhtsa_id":10144892,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-09-24","date":"2015-02-20","document_id":"21-009-15","mfr_campaign":null,"component":"ENGINE; POWER TRAIN","summary":"Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following concerns. These concerns are broken up per engine and transmission combination. 6.2L engine (sales code ESD) equipped with an 8HP90 transmission (sales code DFE) ? Transmission will not upshift during Wide Open Throttle (WOT) acceleration. ? Harsh or inconsistent coasting downshifts. ? Transmission will not shift into 7th gear during high speed driving. ? Inconsistent or busy shifts during stop and go traffic. ? Inconsistent gear shift patterns when driving on grades. ? Malfunction Indicator Lamp (MIL) Illumination during ABS activated stops with Diagnostic Trouble Code (DTC) P1DCD TCM Monitoring Processor Performance, Multiple Clutches Locked Up. 6.4L engine (sales code ESG) and equipped with an 8HP70 transmission (sales code DFK) ? Harsh or inconsistent 1-2 upshift. ? Harsh of inconsistent coasting 4-3 downshift. ? Harsh or inconsistent gear engagement when shifting to drive or reverse. ? Instrument Panel Cluster (IPC) shows the incorrect gear when in manual mode. ? Harsh of inconsistent shifts during tip-in acceleration from closed throttle. ? Inconsistent gear shift patterns when driving on grades. ? Inconsistent release of Hill Start Assist during tip-in acceleration. ? Transmission upshifts on sweeping curves under track driving conditions.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10144892-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10144892-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10144892"},{"nhtsa_id":10144862,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-09-24","date":"2015-03-31","document_id":"21-009-15 REV. A","mfr_campaign":null,"component":"SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; ENGINE; SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT; POWER TRAIN; EQUIPMENT:ELECTRICAL","summary":"Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following concerns. These concerns are broken up per engine and transmission combination. 6.2L engine (sales code ESD) equipped with an 8HP90 transmission (sales code DFE) ? Transmission will not upshift during Wide Open Throttle (WOT) acceleration. ? Harsh or inconsistent coasting downshifts. ? Transmission will not shift into 7th gear during high speed driving. ? Inconsistent or busy shifts during stop and go traffic. ? Inconsistent gear shift patterns when driving on grades. ? Malfunction Indicator Lamp (MIL) Illumination during ABS activated stops with Diagnostic Trouble Code (DTC) P1DCD TCM Monitoring Processor Performance, Multiple Clutches Locked Up. 6.4L engine (sales code ESG) and equipped with an 8HP70 transmission (sales code DFK) ? Inconsistent 1-2 upshifts when first shifting after a cold soak or in colder ambient temperatures. ? Delayed engagement when shifting from reverse to drive. ? Harsh or inconsistent 1-2 upshift during normal driving. ? Harsh of inconsistent coasting 4-3 downshift. ? Harsh or inconsistent gear engagement when shifting to drive or reverse. ? Instrument Panel Cluster (IPC) shows the incorrect gear when in manual mode. ? Harsh of inconsistent shifts during tip-in acceleration from closed throttle. ? Inconsistent gear shift patterns when driving on grades. ? Inconsistent release of Hill Start Assist during tip-in acceleration. ? Transmission upshifts on sweeping curves under track driving conditions. In addition to the above conditions, this software release also enables the capability to capture non Diagnostic Trouble Code (DTC) control module data through the Uconnect Data Recording system.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10144862-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10144862-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10144862"},{"nhtsa_id":10140118,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2016-06-17","document_id":"21-019-16","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience an erroneous Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble Code (DTC) stored in the TCM memory. 3.6L Engine (Sales Code ERB) with 845RE Transmission (Sales Code DFL): · **Improved shift quality.** · P1DCD - TCM monitoring processor performance multiple clutches locked up. · P1B13 - Park-By-Wire unintended out of park position. · P0734 - Gear 4 Shift Incorrect Ratio. 3.6L Engine (Sales Code ERB) with 8HP45 Transmission (Sales Code DFG): · **Improved shift quality.** · Harsh 2-1 downshift or bump at low speeds. · P0734 - Gear 4 Shift Incorrect Ratio. 3.0L Engine (Sales Code EHD) with 845RE Transmission (Sales Code DFL): · **Improved shift quality.** · P1DCD - TCM monitoring processor performance multiple clutches locked up. · P1B13 - Park-By-Wire unintended out of park position.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10140118-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10140118-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10140118"},{"nhtsa_id":10121790,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-11-03","date":"2017-09-12","document_id":"21-041-17","mfr_campaign":null,"component":"POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM","summary":"Flash: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Codes (DTCs) have been set. This software update will also address some symptom/conditions listed below:3.6L Engine (Sales Code ERB) with 845RE Transmission (Sales Code DFL):During a Flash Over The Air (FOTA) radio update, the transmission shift points will default to higher shift points. The transmission will shift at high engine Revolutions Per Minute (RPM) and 7th and 8th gears may be blocked (LA and LD). Improved shift quality. P1DCD - TCM Monitoring Processor Performance Multiple Clutches Locked Up. P1B13 - Park-By-Wire Unintended Out Of Park Position. P0734 - Gear 4 Shift Incorrect Ratio. 3.6L Engine (Sales Code ERB) with 8HP45 Transmission (Sales Code DFG):During a FOTA radio update, the transmission shift points will default to higher shift points. The transmission will shift at high engine RPM and 7th and 8th gears may be blocked (LA and LD). Improved shift quality. Harsh 2-1 Downshift Or Bump At Low Speeds. P0734 - Gear 4 Shift Incorrect Ratio. 3.0L Engine (Sales Code EHD) with 845RE Transmission (Sales Code DFL):Improved shift quality. P1DCD - TCM Monitoring Processor Performance Multiple Clutches Locked Up. P1B13 - Park-By-Wire Unintended Out Of Park Position.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10121790-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10121790-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121790"},{"nhtsa_id":10080071,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-09-14","date":"2016-06-17","document_id":"21-019-16","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:SOFTWARE","summary":"\"FLASH: TRANSMISSION SHIFT AND DRIVABILITY ENHANCEMENTS THIS BULLETIN INVOLVES REPROGRAMMING OF THE TRANSMISSION CONTROL MODULE (TCM) WITH THE LATEST AVAILABLE SOFTWARE. A SMALL NUMBER OF CUSTOMERS MAY EXPERIENCE AN ERRONEOUS MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION. UPON FURTHER INVESTIGATION, THE TECHNICIAN MAY FIND A DIAGNOSTIC TROUBLE CODE (DTC) STORED IN THE TCM MEMORY. 3.6L ENGINE (SALES CODE ERB) WITH 845RE TRANSMISSION (SALES CODE DFL): · **IMPROVED SHIFT QUALITY.** · P1DCD - TCM MONITORING PROCESSOR PERFORMANCE MULTIPLE CLUTCHES LOCKED UP. · P1B13 - PARK-BY-WIRE UNINTENDED OUT OF PARK POSITION. · P0734 - GEAR 4 SHIFT INCORRECT RATIO. 3.6L ENGINE (SALES CODE ERB) WITH 8HP45 TRANSMISSION (SALES CODE DFG): · **IMPROVED SHIFT QUALITY.** · HARSH 2-1 DOWNSHIFT OR BUMP AT LOW SPEEDS. · P0734 - GEAR 4 SHIFT INCORRECT RATIO. 3.0L ENGINE (SALES CODE EHD) WITH 845RE TRANSMISSION (SALES CODE DFL): · **IMPROVED SHIFT QUALITY.** · P1DCD - TCM MONITORING PROCESSOR PERFORMANCE MULTIPLE CLUTCHES LOCKED UP. · P1B13 - PARK-BY-WIRE UNINTENDED OUT OF PARK POSITION.\"","document":null,"url":"https://open.wenmarpro.com/bulletins/10080071"}],"url":"https://open.wenmarpro.com/makes/dodge/challenger/2015/bulletins?code=P1DCD"},"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/2015/codes/P1DCD","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."]}