Flash: Trailer Tow Module (TTM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer...
Ram technical service bulletin 08-386-26 for 2026 Ram 1500.
- Bulletin number
- 08-386-26
- Component
- Electrical system
- Summary
- Flash: Trailer Tow Module (TTM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer Turn Lamp' message is displayed in the Instrument Panel Cluster (IPC) with no trailer connected. This bulletin involves inspecting and possibly reprogramming the TTM with the latest software.
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