Buick Terraza 2005–2006 — technical service bulletin
Bulletin 4072 · NHTSA communication 10020060 · issued Jul 15, 2006
Technical service bulletin
communication type
Electrical System
component
2005–2006
model years
8
vehicle entries
Official summary
Hard start, no start, caution light, corrosion at c305. *tt updated 08-15-07. *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.