RAM
21-039-25
Comunicaciones del fabricante
- Fecha de publicación
- 2025-09-18
- Recibido por NHTSA
- 2025-09-24
- Números de registro NHTSA
- 11023325
Resumen del fabricante
Texto original en inglés
Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• P0827-00 Up and Down Shift Switch Circuit Low.
• P0826-00 Up and Down Shift Switch Circuit.
• P085F-00 Up and Down Shift Switch Circuit Range/Performance. Customers may also experience one or more of the following:
• Vehicle stuck in default gear, and possibly stranded for many minutes.
• Rough/bumpy 2-3 power on upshifts and/or 3-2 coast down shifts.
• Vehicle enters into limp home mode. Other software improvements:
• Decreased sensitivity to faults P1D8A and P1D8B. This bulletin involves reprogramming the TCM with the latest available software.
• P0827-00 Up and Down Shift Switch Circuit Low.
• P0826-00 Up and Down Shift Switch Circuit.
• P085F-00 Up and Down Shift Switch Circuit Range/Performance. Customers may also experience one or more of the following:
• Vehicle stuck in default gear, and possibly stranded for many minutes.
• Rough/bumpy 2-3 power on upshifts and/or 3-2 coast down shifts.
• Vehicle enters into limp home mode. Other software improvements:
• Decreased sensitivity to faults P1D8A and P1D8B. This bulletin involves reprogramming the TCM with the latest available software.
Códigos en el documento
Comprueba la compatibilidad
La relación con un vehículo es una pista. Confirma motor, producción y software en la documentación del fabricante.
| Marca | Modelo | Año del modelo |
|---|---|---|
| Ram | 4500 | 2025 |