Buick Terraza 2005–2007 — technical service bulletin
Bulletin 050603003 · NHTSA communication 10014992 · issued Apr 1, 2007
Technical service bulletin
communication type
Electrical System
component
2005–2007
model years
12
vehicle entries
Official summary
Headlights and interior lights flicker. *tt updated. *kb
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.