Buick Rainier 2004–2005 — technical service bulletin
Bulletin 3137 · NHTSA communication 10010612 · issued Dec 2, 2004
Technical service bulletin
communication type
Power Train
component
2004–2005
model years
11
vehicle entries
Official summary
Service 4wd light on and no communication with transfer case control module. *eh
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.