Flash: Trailer Tow Module (TTM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer...
Ram technical service bulletin 08-385-26 for 2026 Ram 2500, 2026 Ram 3500 and 2026 Ram 5500 and others.
- Bulletin number
- 08-385-26
- 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.
Owners of these vehicles have filed 31 complaints in the electrical category.
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