Buick Lacrosse 2012–2013 — technical service bulletin
Bulletin 12238B · NHTSA communication 10245859 · issued Nov 1, 2012
Technical service bulletin
communication type
Electrical System
component
2012–2013
model years
4
vehicle entries
Official summary
Loss of Battery Charge ? Inspect Generator Control Module
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.