Buick Lacrosse 2006 — technical service bulletin
Bulletin 3812 · NHTSA communication 10018920 · issued Jan 25, 2006
Technical service bulletin
communication type
Latches/locks/linkages
component
2006
model years
12
vehicle entries
Official summary
Door locks actuators cycle and interior light turns on and off at random. *tt
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.