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April 9, 2026 Service bulletin

R1H Radio USB Update to U39P.2 Customers may experience one or more of the following: SYMPTOM: ?...

Ram technical service bulletin 08-146-26 for 2026 Ram 1500.

Bulletin number
08-146-26
Component
Electrical system
Summary
R1H Radio USB Update to U39P.2 Customers may experience one or more of the following: SYMPTOM: ? Navigation highly inaccurate. ? Compass intermittently shows "--" in cluster. ? Navigation stuck at the same location. ? Screen OFF hard key inoperative. This

Owners of these vehicles have filed 52 complaints in the electrical category.

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