JEEP
21-017-25
Manufacturer communications
- Publication date
- 2025-03-04
- Received by NHTSA
- 2025-03-11
- NHTSA record numbers
- 11015540
Manufacturer summary
Original wording in English
"Flash: Transmission Control(TCM) Module Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):
• P0300 - Multiple Cylinder Misfire. NOTE: DTC P0300 will be set in the Powertrain Control Module (PCM). No DTCs will be stored in the TCM. Customers may also experience the following:
• Rough running engine. This bulletin involves reprogramming the TCM with the latest available software"
• P0300 - Multiple Cylinder Misfire. NOTE: DTC P0300 will be set in the Powertrain Control Module (PCM). No DTCs will be stored in the TCM. Customers may also experience the following:
• Rough running engine. 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
P0300Multiple Cylinder MisfireCheck 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 | GRAND WAGONEER | 2022 |
| Jeep | WAGONEER | 2022 |