Buick Lesabre 1992–1994 — technical service bulletin
Bulletin 536401 · NHTSA communication 39814 · issued Mar 1, 1995
Technical service bulletin
communication type
Electrical System
component
1992–1994
model years
15
vehicle entries
Official summary
Dim headlamps, slow windshield wipers, etc resulting from low/no generator output. *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.