Porsche Cayenne 2019–2023 — technical service bulletin
Bulletin No. 231-24 · NHTSA communication 11015094 · issued Jan 15, 2025
Technical service bulletin
communication type
Exterior Lighting
component
2019–2023
model years
5
vehicle entries
Official summary
Technical Information - Flashing Function for Auxiliary Headlights Faulty / Fault Memory Entry "C11A401" in Control Unit for Headlight Bulb: Re-Code Control Unit for Headlight Bulb (231/24)
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.