Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp...
Ram technical service bulletin 21-028-26 for 2025 Ram 2500 and 2025 Ram 3500.
- Bulletin number
- 21-028-26
- Component
- Power train
- Summary
- 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
Owners of these vehicles have filed 16 complaints in the transmission category.
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