Ford F-150 2009–2013 — technical service bulletin
Bulletin ASI-12048 · NHTSA communication 10051724 · issued Nov 1, 2012
Technical service bulletin
communication type
Exterior Lighting
component
2009–2013
model years
5
vehicle entries
Official summary
Ford: due to an open headlight switch, the headlamps, park lamps or lamps are inoperative and headlamps will remain on because of aftermarket or genuine ford accessories (gfa), installed incorrectly. Causing possible damage to switch. 2009-2013 f-150. *pe
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.