# P0826 on the 2025 Ram 3500

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0826

- [11032327](https://open.wenmarpro.com/bulletins/11032327), 2026-05-06: 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 \(DTCs\): ● P0826\-00 \- Up/Down Shift Switch. ● P0827\-00 \- Up/down Shift Switch Circuit Low. ● P085F\-00 \- Up And Down Shift Switch Circuit Range/performance. Customers may also experience one or more of the following: ● Customer is unable to switch the ignition to OFF when in Park gear. ● After shifting into Park, the Instrument Panel Cluster \(IPC\) will display that the transmission is in Neutral. NOTE: The transmission will actually be in Park and able to hold the vehicle, but the cluster display would indicate Neutral, preventing the engine from shutting off. ● 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 DTCs P1D8A and P1D8B. This bulletin involves inspecting and if required reprogramming the TCM with the latest available software
- [11031329](https://open.wenmarpro.com/bulletins/11031329), 2026-04-15: Flash: Transmission Control Module \(TCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ? P0826\-00 \- Up/Down Shift Sw
- [11027630](https://open.wenmarpro.com/bulletins/11027630), 2026-01-14: 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 \(DTCs\): ● P0826\-00 \- Up/Down Shift Switch. ● P0827\-00 \- Up/down Shift Switch Circuit Low. ● P085F\-00 \- Up And Down Shift Switch Circuit Range/performance. Customers may also experience one or more of the following: ● \*\*Customer is unable to switch the ignition to OFF when in Park gear. ● After shifting into Park, the Instrument Panel Cluster \(IPC\) will display that the transmission is in Neutral.\*\* NOTE: \*\*The transmission will actually be in Park and able to hold the vehicle, but the cluster display would indicate Neutral, preventing the engine from shutting off.\*\* ● 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 DTCs P1D8A and P1D8B. This bulletin involves reprogramming the TCM with the latest available software.
- [11027627](https://open.wenmarpro.com/bulletins/11027627), 2026-01-14: 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 \(DTCs\): ● P0826\-00 \- Up/Down Shift Switch. ● P0827\-00 \- Up/down Shift Switch Circuit Low. ● P085F\-00 \- Up And Down Shift Switch Circuit Range/performance. Customers may also experience one or more of the following: ● \*\*Customer is unable to switch the ignition to OFF when in Park gear. ● After shifting into Park, the Instrument Panel Cluster \(IPC\) will display that the transmission is in Neutral.\*\* NOTE: \*\*The transmission will actually be in Park and able to hold the vehicle, but the cluster display would indicate Neutral, preventing the engine from shutting off.\*\* ● 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 DTCs P1D8A and P1D8B. This bulletin involves reprogramming the TCM with the latest available software.
- [11024601](https://open.wenmarpro.com/bulletins/11024601), 2025-10-29: Flash: Transmission Control Module \(TCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must 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. ● P1DCD\-00 \- TCM Monitoring Processor Performance Multiple Clutches Locked Up. Customers may also experience one or more of the following: ● Vehicle stuck in default gear, and possibly stranded for many minutes. ● Rough or 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 DTCs P1D8A and P1D8B This bulletin involves inspecting and possibly reprogramming the TCM with the latest available software.
- [11024306](https://open.wenmarpro.com/bulletins/11024306), 2025-10-15: 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 \(DTCs\): ● P0826\-00 \- Up/Down Shift Switch. ● P0827\-00 \- Up/down Shift Switch Circuit Low. ● 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 DTCs P1D8A and P1D8B This bulletin involves reprogramming the TCM with the latest available software.
- [11023319](https://open.wenmarpro.com/bulletins/11023319), 2025-09-24: 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.\*\* ● P1DCD\-00 \- TCM Monitoring Processor Performance Multiple Clutches Locked Up. 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 inspecting the TCM software level and possibly reprogramming the TCM with the latest available software This bulletin involves inspecting the TCM software level and possibly reprogramming the TCM with the latest available software.