RAM 2500 2026 — technical service bulletin
Bulletin OTHERDOC_142 · NHTSA communication 11022028 · issued Aug 14, 2025
Technical service bulletin
communication type
Electrical System
component
2026
model years
4
vehicle entries
Official summary
Radio Over The Air Update from U39.E to U40.C R1H Software Version (FOTA) Customers may experience one or more of the following: - Navigation non-functional, not updating current position. - Screen Off hard key inoperative, Soft key on radio screen still operational. - CarPlay and Android Auto stability issues.
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.