Global Telematics Box Module (TBM) Firmware Over The Air (FOTA) Update From R5N to R5T Software Level The...
Ram technical service bulletin 08-339-25 for 2025-2026 Ram 1500.
- Bulletin number
- 08-339-25
- Component
- Electrical system
- Summary
- Global Telematics Box Module (TBM) Firmware Over The Air (FOTA) Update From R5N to R5T Software Level The customer may comment on the following: ● Radio screen displays "Uconnect Box Error" with the message "Uconnect Box requires service. Please visit an authorized dealer" Fig. 1. Rear View Camera (RVC) functions normally. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The TBM software will be updated from R5N to R5T software level.
Owners of these vehicles have filed 250 complaints in the electrical category.
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