Buick Buick 2003–2006 — technical service bulletin
Bulletin 030604012 · NHTSA communication 10000949 · issued Aug 1, 2005
Technical service bulletin
communication type
Electrical System
component
2003–2006
model years
12
vehicle entries
Official summary
Inspection of all related wiring harness connections when diagnosing miscellaneous diagnostic trouble codes, intermittent driveability concerns, hard start, no start, incorrect gauges, inoperative air conditioning systems, service engine soon lamps illuminated, 4wd lamp illuminated, instrument panel gauges inoperative, cruise inoperative. 2006 and prior cars and light duty trucks. *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.