RAM 1500 2026 — technical service bulletin
Bulletin 08-146-26 · NHTSA communication 11031323 · issued Apr 9, 2026
Technical service bulletin
communication type
Electrical System
component
2026
model years
1
vehicle entries
Official 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
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.