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Service bulletins for the 2015 Ram Promaster City

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

280 on file from NHTSA, as of 2026-10-19.

About P1DAD on the 2015 Ram Promaster City: what the code means, and the bulletins and recalls about the same components.

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By component

By trouble code

Only bulletins with trouble code: P1DAD are shown. Show all

Bulletins, newest first
21018172022-10-24. Service bulletin. POWER TRAIN; BACK OVER PREVENTION; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. 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 the technician may find one or more of the following DTCs:P1634 - TCM Internal Watchdog Performance. P0887 - TCM Power Control Circuit High. P1720 - Output Speed Sensor-Wheel Speed Rationality. P1DCCD - TCM Monitoring Processor Performance Multiple Clutches Locked Up. P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance. P1DAD - Input Shaft-Output Shaft Direction Correlation. P1CC9 - Unable To Engage Gear. This software release also includes the following improvements:Calibrations to support changes in air flow to protect the catalyst. Transmission shift quality. Enable the capability to capture non-DTC control module data through the Uconnect data recording system.
21-018-17 REV. A2022-09-15. Service bulletin. POWER TRAIN. Flash: Transmission Shift and Driveability 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 the technician may find one or more of the following Diagnostic Trouble Codes (DTCs):P0887 - TCM Power Control Circuit High. P1720 - Output Speed Sensor-Wheel Speed Rationality. P1634 - Output Speed Sensor-Wheel Speed Rationality. P1DCCD - TCM Monitoring Processor Performance Multiple Clutches Locked Up. P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance. P1DAD - Input Shaft-Output Shaft Direction Correlation. P1CC9 - Unable To Engage Gear. In addition the following enhancements are included:Calibrations to support changes in air flow to protect the catalyst. Transmission shift quality. Enable the capability to capture non-DTC control module data through the Uconnect data recording system.
21-039-15 REV B2019-05-20. Service bulletin. POWER TRAIN. 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 a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). ? P1720 - Output Speed Sensor-Wheel Speed Rationality. ? P1634 - Output Speed Sensor-Wheel Speed Rationality. ? P1DCCD - TCM Monitoring Processor Performance Multiple Clutches Locked Up. ? P0887 - TCM Power Control Circuit High. ? P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance. ? P1DAD - Input Shaft-Output Shaft Direction Correlation. ? P1CC9 - Unable To Engage Gear. In addition to the above conditions, this software release also includes improvements to: ? Transmission shift quality. ? Enable the capability to capture non Diagnostic Trouble Code (DTC) control module data through the Uconnect Data Recording system.
21-039-15 REV-A2018-11-26. Service bulletin. POWER TRAIN. 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 a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). ? P1720 - Output Speed Sensor-Wheel Speed Rationality. ? P1634 - Output Speed Sensor-Wheel Speed Rationality. ? P1DCCD - TCM Monitoring Processor Performance Multiple Clutches Locked Up. ? P0887 - TCM Power Control Circuit High. ? P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance. ? P1DAD - Input Shaft-Output Shaft Direction Correlation. ? P1CC9 - Unable To Engage Gear. In addition to the above conditions, this software release also includes improvements to: ? Transmission shift quality. ? Enable the capability to capture non Diagnostic Trouble Code (DTC) control module data through the Uconnect Data Recording system.
21-018-17 REV. A2018-06-04. Service bulletin. POWER TRAIN. Flash: Transmission Shift and Driveability 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 the technician may find one or more of the following Diagnostic Trouble Codes (DTCs):P0887 - TCM Power Control Circuit High. P1720 - Output Speed Sensor-Wheel Speed Rationality. P1634 - Output Speed Sensor-Wheel Speed Rationality. P1DCCD - TCM Monitoring Processor Performance Multiple Clutches Locked Up. P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance. P1DAD - Input Shaft-Output Shaft Direction Correlation. P1CC9 - Unable To Engage Gear. In addition the following enhancements are included:Calibrations to support changes in air flow to protect the catalyst. Transmission shift quality. Enable the capability to capture non-DTC control module data through the Uconnect data recording system.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.