RAM
21-028-25
Manufacturer communications
- Publication date
- 2025-04-03
- Received by NHTSA
- 2025-04-09
- NHTSA record numbers
- 11016881
Manufacturer summary
Original wording in English
" Flash: Transmission Control Module (TCM) Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC):
• P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience the following:
• Vehicle enters into limp home mode. This bulletin involves inspecting the TCM software level and possibly reprogramming the TCM with the latest available software."
• P1DCD-00 - TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience the following:
• Vehicle enters into limp home mode. This bulletin involves inspecting the TCM software level and possibly reprogramming the TCM with the latest available software."
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Ram
P1DCD-00TCM Monitoring Processor Performance Multiple Clutches Locked UpCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ram | 3500 | 2025 |