RAM 1500 2026 — technical service bulletin
Bulletin 9100737 · NHTSA communication 11027643 · issued Jan 5, 2026
Technical service bulletin
communication type
Electrical System
component
2026
model years
1
vehicle entries
Official summary
O2 Sensor Rear Bank Downstream Please check applicable TSBs / RSUs for PCM flashes before replacing O2 sensors - such as TSB 08-357-25 / RSU 25-223 for 26MY DT SO.
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.