JEEP
21-018-25 REV. A
Manufacturer communications
- Publication date
- 2025-03-30
- Received by NHTSA
- 2025-04-02
- NHTSA record numbers
- 11016270
Manufacturer summary
Original wording in English
"Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):
• P1DB7-00 - Torque Converter Clutch Performance. Customers may also experience one or more of the following:
• The check engine light illuminates.
• Overheating of the transmission fluid. This bulletin involves reprogramming the TCM with the latest available software."
• P1DB7-00 - Torque Converter Clutch Performance. Customers may also experience one or more of the following:
• The check engine light illuminates.
• Overheating of the transmission fluid. This bulletin involves 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.
Jeep
P1DB7-00Torque Converter Clutch PerformanceCheck 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 |
|---|---|---|
| Jeep | WRANGLER | 2023 |