BMW 230I 2025–2026 — technical service bulletin
Bulletin B630925 · NHTSA communication 11026955 · issued Dec 18, 2025
Technical service bulletin
communication type
Exterior Lighting
component
2025–2026
model years
4
vehicle entries
Official summary
After programming the vehicle via ISTA/RSUto 25-07-5xx, some of the interior ambientlighting strips (examples circled) may nolonger function properly. Possible fault codes entries for F74: 804A38 – Interior lights layering (IL-LIN_3): versioning incorrect: LINslave 5 804A39 – Interior lights layering (IL-LIN_3): versioning incorrect: LINslave 6 804A3E – Interior lights layering (IL-LIN_3): versioning incorrect: LINslave 11 Possible fault codes entries for G45: 804A34 – Interior lights layering (IL-LIN_3): versioning incorrect: LINslave 1 804A35 - Interior lights layering (IL-LIN_3): versioning
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.