RAM 1500 2021–2024 — technical service bulletin
Bulletin 9100274 Rev 1 · NHTSA communication 11035992 · issued Jul 28, 2026
Technical service bulletin
communication type
Lane Departure
component
2021–2024
model years
4
vehicle entries
Official summary
Blindspot Module For concern on Blindspot Module setting U11FB-00 Lost Communication with Left Blind Spot Sensor, U11FA-00 Lost Communication with Right Blind Spot Sensor. Some vehicle(s) where the Blindspot Module was replaced had no issues found with the Blindspot Module after testing. Please verify no wiring or connector issues are present prior to module replacement.
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.