Buick Rainier 2002–2005 — technical service bulletin
Bulletin 3138 · NHTSA communication 10010105 · issued Jan 1, 2004
Technical service bulletin
communication type
Electrical System
component
2002–2005
model years
11
vehicle entries
Official summary
Reduced power light on and diagnostic trouble code p1680 p1221 and/or p1271 stored in the power control module. *sc
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.