Buick Lesabre 1995 — technical service bulletin
Bulletin 488104 · NHTSA communication 37948 · issued Dec 1, 1994
Technical service bulletin
communication type
Exterior Lighting
component
1995
model years
5
vehicle entries
Official summary
Headlamps will not turn off on vehicles with twilight sentinel daytime running lamps. *tw
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.